src/graphics, src/parsing: drawing model initial state

WIP: src/graphics, src/parsing: get multiplicity
src/graphics: corrected aspect ratio and optimized matrices
2024-01-12 17:23:06 +01:00 · 2024-01-12 11:17:40 +01:00 · 2024-01-11 23:43:39 +01:00 · 2024-01-11 22:27:52 +01:00 · 2024-01-11 18:10:16 +01:00 · 2024-01-11 18:09:51 +01:00
40 changed files with 6717 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,3 @@
 **/tags.*
 bin/*
 build/*
--- a/661
+++ b/661
@ -0,0 +1,661 @@
                    GNU AFFERO GENERAL PUBLIC LICENSE
                       Version 3, 19 November 2007
 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.
                            Preamble
  The GNU Affero General Public License is a free, copyleft license for
 software and other kinds of works, specifically designed to ensure
 cooperation with the community in the case of network server software.
  The licenses for most software and other practical works are designed
 to take away your freedom to share and change the works.  By contrast,
 our General Public Licenses are intended to guarantee your freedom to
 share and change all versions of a program--to make sure it remains free
 software for all its users.
  When we speak of free software, we are referring to freedom, not
 price.  Our General Public Licenses are designed to make sure that you
 have the freedom to distribute copies of free software (and charge for
 them if you wish), that you receive source code or can get it if you
 want it, that you can change the software or use pieces of it in new
 free programs, and that you know you can do these things.
  Developers that use our General Public Licenses protect your rights
 with two steps: (1) assert copyright on the software, and (2) offer
 you this License which gives you legal permission to copy, distribute
 and/or modify the software.
  A secondary benefit of defending all users' freedom is that
 improvements made in alternate versions of the program, if they
 receive widespread use, become available for other developers to
 incorporate.  Many developers of free software are heartened and
 encouraged by the resulting cooperation.  However, in the case of
 software used on network servers, this result may fail to come about.
 The GNU General Public License permits making a modified version and
 letting the public access it on a server without ever releasing its
 source code to the public.
  The GNU Affero General Public License is designed specifically to
 ensure that, in such cases, the modified source code becomes available
 to the community.  It requires the operator of a network server to
 provide the source code of the modified version running there to the
 users of that server.  Therefore, public use of a modified version, on
 a publicly accessible server, gives the public access to the source
 code of the modified version.
  An older license, called the Affero General Public License and
 published by Affero, was designed to accomplish similar goals.  This is
 a different license, not a version of the Affero GPL, but Affero has
 released a new version of the Affero GPL which permits relicensing under
 this license.
  The precise terms and conditions for copying, distribution and
 modification follow.
                       TERMS AND CONDITIONS
  0. Definitions.
  "This License" refers to version 3 of the GNU Affero General Public License.
  "Copyright" also means copyright-like laws that apply to other kinds of
 works, such as semiconductor masks.
  "The Program" refers to any copyrightable work licensed under this
 License.  Each licensee is addressed as "you".  "Licensees" and
 "recipients" may be individuals or organizations.
  To "modify" a work means to copy from or adapt all or part of the work
 in a fashion requiring copyright permission, other than the making of an
 exact copy.  The resulting work is called a "modified version" of the
 earlier work or a work "based on" the earlier work.
  A "covered work" means either the unmodified Program or a work based
 on the Program.
  To "propagate" a work means to do anything with it that, without
 permission, would make you directly or secondarily liable for
 infringement under applicable copyright law, except executing it on a
 computer or modifying a private copy.  Propagation includes copying,
 distribution (with or without modification), making available to the
 public, and in some countries other activities as well.
  To "convey" a work means any kind of propagation that enables other
 parties to make or receive copies.  Mere interaction with a user through
 a computer network, with no transfer of a copy, is not conveying.
  An interactive user interface displays "Appropriate Legal Notices"
 to the extent that it includes a convenient and prominently visible
 feature that (1) displays an appropriate copyright notice, and (2)
 tells the user that there is no warranty for the work (except to the
 extent that warranties are provided), that licensees may convey the
 work under this License, and how to view a copy of this License.  If
 the interface presents a list of user commands or options, such as a
 menu, a prominent item in the list meets this criterion.
  1. Source Code.
  The "source code" for a work means the preferred form of the work
 for making modifications to it.  "Object code" means any non-source
 form of a work.
  A "Standard Interface" means an interface that either is an official
 standard defined by a recognized standards body, or, in the case of
 interfaces specified for a particular programming language, one that
 is widely used among developers working in that language.
  The "System Libraries" of an executable work include anything, other
 than the work as a whole, that (a) is included in the normal form of
 packaging a Major Component, but which is not part of that Major
 Component, and (b) serves only to enable use of the work with that
 Major Component, or to implement a Standard Interface for which an
 implementation is available to the public in source code form.  A
 "Major Component", in this context, means a major essential component
 (kernel, window system, and so on) of the specific operating system
 (if any) on which the executable work runs, or a compiler used to
 produce the work, or an object code interpreter used to run it.
  The "Corresponding Source" for a work in object code form means all
 the source code needed to generate, install, and (for an executable
 work) run the object code and to modify the work, including scripts to
 control those activities.  However, it does not include the work's
 System Libraries, or general-purpose tools or generally available free
 programs which are used unmodified in performing those activities but
 which are not part of the work.  For example, Corresponding Source
 includes interface definition files associated with source files for
 the work, and the source code for shared libraries and dynamically
 linked subprograms that the work is specifically designed to require,
 such as by intimate data communication or control flow between those
 subprograms and other parts of the work.
  The Corresponding Source need not include anything that users
 can regenerate automatically from other parts of the Corresponding
 Source.
  The Corresponding Source for a work in source code form is that
 same work.
  2. Basic Permissions.
  All rights granted under this License are granted for the term of
 copyright on the Program, and are irrevocable provided the stated
 conditions are met.  This License explicitly affirms your unlimited
 permission to run the unmodified Program.  The output from running a
 covered work is covered by this License only if the output, given its
 content, constitutes a covered work.  This License acknowledges your
 rights of fair use or other equivalent, as provided by copyright law.
  You may make, run and propagate covered works that you do not
 convey, without conditions so long as your license otherwise remains
 in force.  You may convey covered works to others for the sole purpose
 of having them make modifications exclusively for you, or provide you
 with facilities for running those works, provided that you comply with
 the terms of this License in conveying all material for which you do
 not control copyright.  Those thus making or running the covered works
 for you must do so exclusively on your behalf, under your direction
 and control, on terms that prohibit them from making any copies of
 your copyrighted material outside their relationship with you.
  Conveying under any other circumstances is permitted solely under
 the conditions stated below.  Sublicensing is not allowed; section 10
 makes it unnecessary.
  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
  No covered work shall be deemed part of an effective technological
 measure under any applicable law fulfilling obligations under article
 11 of the WIPO copyright treaty adopted on 20 December 1996, or
 similar laws prohibiting or restricting circumvention of such
 measures.
  When you convey a covered work, you waive any legal power to forbid
 circumvention of technological measures to the extent such circumvention
 is effected by exercising rights under this License with respect to
 the covered work, and you disclaim any intention to limit operation or
 modification of the work as a means of enforcing, against the work's
 users, your or third parties' legal rights to forbid circumvention of
 technological measures.
  4. Conveying Verbatim Copies.
  You may convey verbatim copies of the Program's source code as you
 receive it, in any medium, provided that you conspicuously and
 appropriately publish on each copy an appropriate copyright notice;
 keep intact all notices stating that this License and any
 non-permissive terms added in accord with section 7 apply to the code;
 keep intact all notices of the absence of any warranty; and give all
 recipients a copy of this License along with the Program.
  You may charge any price or no price for each copy that you convey,
 and you may offer support or warranty protection for a fee.
  5. Conveying Modified Source Versions.
  You may convey a work based on the Program, or the modifications to
 produce it from the Program, in the form of source code under the
 terms of section 4, provided that you also meet all of these conditions:
    a) The work must carry prominent notices stating that you modified
    it, and giving a relevant date.
    b) The work must carry prominent notices stating that it is
    released under this License and any conditions added under section
    7.  This requirement modifies the requirement in section 4 to
    "keep intact all notices".
    c) You must license the entire work, as a whole, under this
    License to anyone who comes into possession of a copy.  This
    License will therefore apply, along with any applicable section 7
    additional terms, to the whole of the work, and all its parts,
    regardless of how they are packaged.  This License gives no
    permission to license the work in any other way, but it does not
    invalidate such permission if you have separately received it.
    d) If the work has interactive user interfaces, each must display
    Appropriate Legal Notices; however, if the Program has interactive
    interfaces that do not display Appropriate Legal Notices, your
    work need not make them do so.
  A compilation of a covered work with other separate and independent
 works, which are not by their nature extensions of the covered work,
 and which are not combined with it such as to form a larger program,
 in or on a volume of a storage or distribution medium, is called an
 "aggregate" if the compilation and its resulting copyright are not
 used to limit the access or legal rights of the compilation's users
 beyond what the individual works permit.  Inclusion of a covered work
 in an aggregate does not cause this License to apply to the other
 parts of the aggregate.
  6. Conveying Non-Source Forms.
  You may convey a covered work in object code form under the terms
 of sections 4 and 5, provided that you also convey the
 machine-readable Corresponding Source under the terms of this License,
 in one of these ways:
    a) Convey the object code in, or embodied in, a physical product
    (including a physical distribution medium), accompanied by the
    Corresponding Source fixed on a durable physical medium
    customarily used for software interchange.
    b) Convey the object code in, or embodied in, a physical product
    (including a physical distribution medium), accompanied by a
    written offer, valid for at least three years and valid for as
    long as you offer spare parts or customer support for that product
    model, to give anyone who possesses the object code either (1) a
    copy of the Corresponding Source for all the software in the
    product that is covered by this License, on a durable physical
    medium customarily used for software interchange, for a price no
    more than your reasonable cost of physically performing this
    conveying of source, or (2) access to copy the
    Corresponding Source from a network server at no charge.
    c) Convey individual copies of the object code with a copy of the
    written offer to provide the Corresponding Source.  This
    alternative is allowed only occasionally and noncommercially, and
    only if you received the object code with such an offer, in accord
    with subsection 6b.
    d) Convey the object code by offering access from a designated
    place (gratis or for a charge), and offer equivalent access to the
    Corresponding Source in the same way through the same place at no
    further charge.  You need not require recipients to copy the
    Corresponding Source along with the object code.  If the place to
    copy the object code is a network server, the Corresponding Source
    may be on a different server (operated by you or a third party)
    that supports equivalent copying facilities, provided you maintain
    clear directions next to the object code saying where to find the
    Corresponding Source.  Regardless of what server hosts the
    Corresponding Source, you remain obligated to ensure that it is
    available for as long as needed to satisfy these requirements.
    e) Convey the object code using peer-to-peer transmission, provided
    you inform other peers where the object code and Corresponding
    Source of the work are being offered to the general public at no
    charge under subsection 6d.
  A separable portion of the object code, whose source code is excluded
 from the Corresponding Source as a System Library, need not be
 included in conveying the object code work.
  A "User Product" is either (1) a "consumer product", which means any
 tangible personal property which is normally used for personal, family,
 or household purposes, or (2) anything designed or sold for incorporation
 into a dwelling.  In determining whether a product is a consumer product,
 doubtful cases shall be resolved in favor of coverage.  For a particular
 product received by a particular user, "normally used" refers to a
 typical or common use of that class of product, regardless of the status
 of the particular user or of the way in which the particular user
 actually uses, or expects or is expected to use, the product.  A product
 is a consumer product regardless of whether the product has substantial
 commercial, industrial or non-consumer uses, unless such uses represent
 the only significant mode of use of the product.
  "Installation Information" for a User Product means any methods,
 procedures, authorization keys, or other information required to install
 and execute modified versions of a covered work in that User Product from
 a modified version of its Corresponding Source.  The information must
 suffice to ensure that the continued functioning of the modified object
 code is in no case prevented or interfered with solely because
 modification has been made.
  If you convey an object code work under this section in, or with, or
 specifically for use in, a User Product, and the conveying occurs as
 part of a transaction in which the right of possession and use of the
 User Product is transferred to the recipient in perpetuity or for a
 fixed term (regardless of how the transaction is characterized), the
 Corresponding Source conveyed under this section must be accompanied
 by the Installation Information.  But this requirement does not apply
 if neither you nor any third party retains the ability to install
 modified object code on the User Product (for example, the work has
 been installed in ROM).
  The requirement to provide Installation Information does not include a
 requirement to continue to provide support service, warranty, or updates
 for a work that has been modified or installed by the recipient, or for
 the User Product in which it has been modified or installed.  Access to a
 network may be denied when the modification itself materially and
 adversely affects the operation of the network or violates the rules and
 protocols for communication across the network.
  Corresponding Source conveyed, and Installation Information provided,
 in accord with this section must be in a format that is publicly
 documented (and with an implementation available to the public in
 source code form), and must require no special password or key for
 unpacking, reading or copying.
  7. Additional Terms.
  "Additional permissions" are terms that supplement the terms of this
 License by making exceptions from one or more of its conditions.
 Additional permissions that are applicable to the entire Program shall
 be treated as though they were included in this License, to the extent
 that they are valid under applicable law.  If additional permissions
 apply only to part of the Program, that part may be used separately
 under those permissions, but the entire Program remains governed by
 this License without regard to the additional permissions.
  When you convey a copy of a covered work, you may at your option
 remove any additional permissions from that copy, or from any part of
 it.  (Additional permissions may be written to require their own
 removal in certain cases when you modify the work.)  You may place
 additional permissions on material, added by you to a covered work,
 for which you have or can give appropriate copyright permission.
  Notwithstanding any other provision of this License, for material you
 add to a covered work, you may (if authorized by the copyright holders of
 that material) supplement the terms of this License with terms:
    a) Disclaiming warranty or limiting liability differently from the
    terms of sections 15 and 16 of this License; or
    b) Requiring preservation of specified reasonable legal notices or
    author attributions in that material or in the Appropriate Legal
    Notices displayed by works containing it; or
    c) Prohibiting misrepresentation of the origin of that material, or
    requiring that modified versions of such material be marked in
    reasonable ways as different from the original version; or
    d) Limiting the use for publicity purposes of names of licensors or
    authors of the material; or
    e) Declining to grant rights under trademark law for use of some
    trade names, trademarks, or service marks; or
    f) Requiring indemnification of licensors and authors of that
    material by anyone who conveys the material (or modified versions of
    it) with contractual assumptions of liability to the recipient, for
    any liability that these contractual assumptions directly impose on
    those licensors and authors.
  All other non-permissive additional terms are considered "further
 restrictions" within the meaning of section 10.  If the Program as you
 received it, or any part of it, contains a notice stating that it is
 governed by this License along with a term that is a further
 restriction, you may remove that term.  If a license document contains
 a further restriction but permits relicensing or conveying under this
 License, you may add to a covered work material governed by the terms
 of that license document, provided that the further restriction does
 not survive such relicensing or conveying.
  If you add terms to a covered work in accord with this section, you
 must place, in the relevant source files, a statement of the
 additional terms that apply to those files, or a notice indicating
 where to find the applicable terms.
  Additional terms, permissive or non-permissive, may be stated in the
 form of a separately written license, or stated as exceptions;
 the above requirements apply either way.
  8. Termination.
  You may not propagate or modify a covered work except as expressly
 provided under this License.  Any attempt otherwise to propagate or
 modify it is void, and will automatically terminate your rights under
 this License (including any patent licenses granted under the third
 paragraph of section 11).
  However, if you cease all violation of this License, then your
 license from a particular copyright holder is reinstated (a)
 provisionally, unless and until the copyright holder explicitly and
 finally terminates your license, and (b) permanently, if the copyright
 holder fails to notify you of the violation by some reasonable means
 prior to 60 days after the cessation.
  Moreover, your license from a particular copyright holder is
 reinstated permanently if the copyright holder notifies you of the
 violation by some reasonable means, this is the first time you have
 received notice of violation of this License (for any work) from that
 copyright holder, and you cure the violation prior to 30 days after
 your receipt of the notice.
  Termination of your rights under this section does not terminate the
 licenses of parties who have received copies or rights from you under
 this License.  If your rights have been terminated and not permanently
 reinstated, you do not qualify to receive new licenses for the same
 material under section 10.
  9. Acceptance Not Required for Having Copies.
  You are not required to accept this License in order to receive or
 run a copy of the Program.  Ancillary propagation of a covered work
 occurring solely as a consequence of using peer-to-peer transmission
 to receive a copy likewise does not require acceptance.  However,
 nothing other than this License grants you permission to propagate or
 modify any covered work.  These actions infringe copyright if you do
 not accept this License.  Therefore, by modifying or propagating a
 covered work, you indicate your acceptance of this License to do so.
  10. Automatic Licensing of Downstream Recipients.
  Each time you convey a covered work, the recipient automatically
 receives a license from the original licensors, to run, modify and
 propagate that work, subject to this License.  You are not responsible
 for enforcing compliance by third parties with this License.
  An "entity transaction" is a transaction transferring control of an
 organization, or substantially all assets of one, or subdividing an
 organization, or merging organizations.  If propagation of a covered
 work results from an entity transaction, each party to that
 transaction who receives a copy of the work also receives whatever
 licenses to the work the party's predecessor in interest had or could
 give under the previous paragraph, plus a right to possession of the
 Corresponding Source of the work from the predecessor in interest, if
 the predecessor has it or can get it with reasonable efforts.
  You may not impose any further restrictions on the exercise of the
 rights granted or affirmed under this License.  For example, you may
 not impose a license fee, royalty, or other charge for exercise of
 rights granted under this License, and you may not initiate litigation
 (including a cross-claim or counterclaim in a lawsuit) alleging that
 any patent claim is infringed by making, using, selling, offering for
 sale, or importing the Program or any portion of it.
  11. Patents.
  A "contributor" is a copyright holder who authorizes use under this
 License of the Program or a work on which the Program is based.  The
 work thus licensed is called the contributor's "contributor version".
  A contributor's "essential patent claims" are all patent claims
 owned or controlled by the contributor, whether already acquired or
 hereafter acquired, that would be infringed by some manner, permitted
 by this License, of making, using, or selling its contributor version,
 but do not include claims that would be infringed only as a
 consequence of further modification of the contributor version.  For
 purposes of this definition, "control" includes the right to grant
 patent sublicenses in a manner consistent with the requirements of
 this License.
  Each contributor grants you a non-exclusive, worldwide, royalty-free
 patent license under the contributor's essential patent claims, to
 make, use, sell, offer for sale, import and otherwise run, modify and
 propagate the contents of its contributor version.
  In the following three paragraphs, a "patent license" is any express
 agreement or commitment, however denominated, not to enforce a patent
 (such as an express permission to practice a patent or covenant not to
 sue for patent infringement).  To "grant" such a patent license to a
 party means to make such an agreement or commitment not to enforce a
 patent against the party.
  If you convey a covered work, knowingly relying on a patent license,
 and the Corresponding Source of the work is not available for anyone
 to copy, free of charge and under the terms of this License, through a
 publicly available network server or other readily accessible means,
 then you must either (1) cause the Corresponding Source to be so
 available, or (2) arrange to deprive yourself of the benefit of the
 patent license for this particular work, or (3) arrange, in a manner
 consistent with the requirements of this License, to extend the patent
 license to downstream recipients.  "Knowingly relying" means you have
 actual knowledge that, but for the patent license, your conveying the
 covered work in a country, or your recipient's use of the covered work
 in a country, would infringe one or more identifiable patents in that
 country that you have reason to believe are valid.
  If, pursuant to or in connection with a single transaction or
 arrangement, you convey, or propagate by procuring conveyance of, a
 covered work, and grant a patent license to some of the parties
 receiving the covered work authorizing them to use, propagate, modify
 or convey a specific copy of the covered work, then the patent license
 you grant is automatically extended to all recipients of the covered
 work and works based on it.
  A patent license is "discriminatory" if it does not include within
 the scope of its coverage, prohibits the exercise of, or is
 conditioned on the non-exercise of one or more of the rights that are
 specifically granted under this License.  You may not convey a covered
 work if you are a party to an arrangement with a third party that is
 in the business of distributing software, under which you make payment
 to the third party based on the extent of your activity of conveying
 the work, and under which the third party grants, to any of the
 parties who would receive the covered work from you, a discriminatory
 patent license (a) in connection with copies of the covered work
 conveyed by you (or copies made from those copies), or (b) primarily
 for and in connection with specific products or compilations that
 contain the covered work, unless you entered into that arrangement,
 or that patent license was granted, prior to 28 March 2007.
  Nothing in this License shall be construed as excluding or limiting
 any implied license or other defenses to infringement that may
 otherwise be available to you under applicable patent law.
  12. No Surrender of Others' Freedom.
  If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
 excuse you from the conditions of this License.  If you cannot convey a
 covered work so as to satisfy simultaneously your obligations under this
 License and any other pertinent obligations, then as a consequence you may
 not convey it at all.  For example, if you agree to terms that obligate you
 to collect a royalty for further conveying from those to whom you convey
 the Program, the only way you could satisfy both those terms and this
 License would be to refrain entirely from conveying the Program.
  13. Remote Network Interaction; Use with the GNU General Public License.
  Notwithstanding any other provision of this License, if you modify the
 Program, your modified version must prominently offer all users
 interacting with it remotely through a computer network (if your version
 supports such interaction) an opportunity to receive the Corresponding
 Source of your version by providing access to the Corresponding Source
 from a network server at no charge, through some standard or customary
 means of facilitating copying of software.  This Corresponding Source
 shall include the Corresponding Source for any work covered by version 3
 of the GNU General Public License that is incorporated pursuant to the
 following paragraph.
  Notwithstanding any other provision of this License, you have
 permission to link or combine any covered work with a work licensed
 under version 3 of the GNU General Public License into a single
 combined work, and to convey the resulting work.  The terms of this
 License will continue to apply to the part which is the covered work,
 but the work with which it is combined will remain governed by version
 3 of the GNU General Public License.
  14. Revised Versions of this License.
  The Free Software Foundation may publish revised and/or new versions of
 the GNU Affero General Public License from time to time.  Such new versions
 will be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
  Each version is given a distinguishing version number.  If the
 Program specifies that a certain numbered version of the GNU Affero General
 Public License "or any later version" applies to it, you have the
 option of following the terms and conditions either of that numbered
 version or of any later version published by the Free Software
 Foundation.  If the Program does not specify a version number of the
 GNU Affero General Public License, you may choose any version ever published
 by the Free Software Foundation.
  If the Program specifies that a proxy can decide which future
 versions of the GNU Affero General Public License can be used, that proxy's
 public statement of acceptance of a version permanently authorizes you
 to choose that version for the Program.
  Later license versions may give you additional or different
 permissions.  However, no additional obligations are imposed on any
 author or copyright holder as a result of your choosing to follow a
 later version.
  15. Disclaimer of Warranty.
  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
 APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
 IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
 ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
  16. Limitation of Liability.
  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
 SUCH DAMAGES.
  17. Interpretation of Sections 15 and 16.
  If the disclaimer of warranty and limitation of liability provided
 above cannot be given local legal effect according to their terms,
 reviewing courts shall apply local law that most closely approximates
 an absolute waiver of all civil liability in connection with the
 Program, unless a warranty or assumption of liability accompanies a
 copy of the Program in return for a fee.
                     END OF TERMS AND CONDITIONS
            How to Apply These Terms to Your New Programs
  If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
 free software which everyone can redistribute and change under these terms.
  To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.
    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 Also add information on how to contact you by electronic and paper mail.
  If your software can interact with users remotely through a computer
 network, you should also make sure that it provides a way for users to
 get its source.  For example, if your program is a web application, its
 interface could display a "Source" link that leads users to an archive
 of the code.  There are many ways you could offer source, and different
 solutions will be better for different programs; see section 13 for the
 specific requirements.
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU AGPL, see
 <https://www.gnu.org/licenses/>.
--- a/132
+++ b/132
@ -0,0 +1,132 @@
 ##
 ##      Gem-graph OpenGL experiments
 ##
 ##      Desc: Makefile
 ##
 ##  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 ##  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 ##
 ##  This file is part of Gem-graph.
 ##
 ##  This program is free software: you can redistribute it and/or modify
 ##  it under the terms of the GNU Affero General Public License as published by
 ##  the Free Software Foundation, either version 3 of the License, or
 ##  (at your option) any later version.
 ##
 ##  This program is distributed in the hope that it will be useful,
 ##  but WITHOUT ANY WARRANTY; without even the implied warranty of
 ##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ##  GNU Affero General Public License for more details.
 ##
 ##  You should have received a copy of the GNU Affero General Public License
 ##  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ##
 .PHONY: all clean install run build_system
 .DELETE_ON_ERROR: $(BINDIR)/gem-graph-client
 .DEFAULT_GOAL := all
 #
 # Color codes
 #
 CL='\033[0;32m'
 CL2='\033[1;36m'
 CL3='\033[0m'
 NC='\033[1;37m'
 #
 # Variables & constants
 #
 NTHREADS= $(shell nproc)
 CC=gcc
 WARNINGS= -Wall
 DEBUG= -ggdb -fno-omit-frame-pointer -fdiagnostics-color=always -fsanitize=bounds -fstack-check
 	#-fsanitize=address \
 	#-fsanitize=pointer-compare -fsanitize=pointer-subtract \
 	#-fsanitize=leak -fsanitize=undefined -fsanitize=null -fsanitize=bounds
 OPTIMIZE= -O3
 INCLUDE= $(shell pkg-config --cflags glib-2.0 libxml-2.0 gtk4)
 LIBS= $(shell pkg-config --libs glib-2.0 libxml-2.0 gtk4) -lGL -lGLU -lm -lepoxy -lX11 -lGLEW
 BINDIR=bin
 BUILDDIR=build
 SRCDIR=src
 #vpath %.c $(SRCDIR)
 SOURCES= $(shell find $(SRCDIR) -type f -name "*.c")
 BUILDBINS=$(patsubst %.c,$(BUILDDIR)/%.o,$(SOURCES))
 BUILDDEPS=$(patsubst %.c,$(BUILDDIR)/%.d,$(SOURCES))
 -include /etc/os-release
 #
 # Directories
 #
 $(BUILDDIR):
 	@mkdir -p $@
 	@echo -e ${CL2}[$@] ${CL}folder generated.${CL3}
 $(BINDIR):
 	@mkdir -p $@
 	@echo -e ${CL2}[$@] ${CL}folder generated.${CL3}
 #
 # Dependencies
 #
 -include $(BUILDDEPS)
 $(BUILDDIR)/%.d: %.c | $(BUILDDIR)
 	@mkdir -p $(shell dirname $@)
 	@$(CC) -MM -MT $(@:%.d=%.o) -MF $@ $<
 	@echo -e ${CL2}[$@] ${CL}dependencies generated.${CL3}
 #
 # Compilation
 #
 $(BINDIR)/gem-graph-client: $(BUILDBINS) | $(BINDIR)
 	@$(CC) -o $@ $(WARNINGS) $(DEBUG) $(OPTIMIZE) $^ $(INCLUDE) $(LIBS)
 	@echo -e ${CL2}[$@] ${CL}built.${CL3}
 $(BUILDDIR)/%.o: %.c | $(BUILDDIR)
 	@mkdir -p $(shell dirname $@)
 	@$(CC) $(WARNINGS) $(DEBUG) $(OPTIMIZE) $(INCLUDE) -c $< -o $@
 	@echo -e ${CL2}[$@] ${CL}compiled.${CL3}
 #
 # Virtual recipes
 #
 clean:
 	@rm -rf $(BINDIR)
 	@rm -rf $(BUILDDIR)
 	@echo -e ${CL2}[$@] ${CL}done.${CL3}
 install:
 	echo "Installing is not supported"
 build_system:
 	@echo -e ${CL2}[$@] ${CL}building...${CL3}
 	@make $(BINDIR)/gem-graph-client -j $(NTHREADS)
 	@echo -e ${CL2}[$@] ${CL}done.${CL3}
 run: build_system
 	@echo -e ${CL2}[$@] ${CL}executing...${CL3}
 	@$(BINDIR)/gem-graph-client
 	@echo -e ${CL2}[$@] ${CL}done.${CL3}
 debug: build_system
 	@echo -e ${CL2}[$@] ${CL}executing...${CL3}
 	@gdb $(BINDIR)/gem-graph-client
 	@echo -e ${CL2}[$@] ${CL}done.${CL3}
 valgrind: build_system
 	@echo -e ${CL2}[$@] ${CL}executing...${CL3}
 	@valgrind $(BINDIR)/gem-graph-client
 	@echo -e ${CL2}[$@] ${CL}done.${CL3}
 all:	build_system
 	@echo -e ${CL2}[$@] ${CL}done.${CL3}
--- a/version).txt
+++ b/version).txt
@ -0,0 +1,46 @@
 L'utilisation d'OpenGL fait que la première version de Gem-graph sera tout naturellement en 3D. Le modèle de marche aléatoire de dimères sera aussi facile à y réaliser que dans un modèle 1D (on pourrait même se servir d'une seule règle au lieu de deux !) (mais deux règles permettront un meilleur rendu).
 Modifier la forme des flèches ? 
 Pour cette première version, la forme "central star" + "cône" a l'avantage de la simplicité.
 La "central star" de chaque cube est commune aux six flèches possibles qui sont orientées chacune vers une face différente.
 Dans la version actuelle, elle est redessinée si plusieurs flèches sont dans le même cube.
 Ce dessin est peu coûteux (deux lignes superposées pour chaque nouvelle flèche)
 et ce cas (plusieurs flèches dans le même cube) sera peu fréquent dans les premiers modèles développés. Mais... TODO
 Le plus simple serait un trait allant du centre d'un cube au centre d'une de ses faces. Ce serait peu lisible pour des objets mais pourrait avoir un intérêt pour les tags (balises) éventuellement associés aux objets ou situations. Ces tags seraient machine-readable. Nécessairement. Seraient-ils human-readable aussi ? Ce serait idéal ! A inventer ou essayer, en tout cas. 
 Un seul trait aurait sûrement un intérêt dans la représentation de voisinages de Moore 3D (Je préfère ne pas imaginer ça pour l'instant !  Il va falloir choisir de ne représenter ou de ne visualiser qu'une partie des connexions à la fois...).
 Le premier objectif des versions à venir est l'extension du voisinage. Un voisinage type von Neumann 3D - le plus simple possible si on le veut symétrique par rapport aux axes de l'espace - est tout à fait indiqué pour cette première version. Mais les versions à venir devraient travailler en priorité avec des voisinages type Moore 3D approximativement spériques de rayon proche de celui de l'espace local. 
 Par ailleurs, Gem-graph ne peut avoir sa puissance théorique maximale que s'il peut utiliser un voisinage étendu à tout l'espace. Mais cette puissance est vraisemblablement inutile, sauf pour les démonstrations mathématiques d'équivalence avec les automates cellulaires, par exemple, ou d'autres formalismes.
 Par ailleurs, il est d'ores et déjà possible d'utiliser pleinement le "poids" (weight) ou la "charge" (load) des flèches.
 ! WARNING !   J'ai inversé pôle Nord et pôle Sud. Et c'est à corriger, je pense. 👀️
 Ce sera une convention, bien sûr. Mais comment la choisir ? J'ai imaginé superposer repère orthonormé et repère géodésique. 
 Si je regarde un repère orthonormé 3D:
 les +x sont à ma droite, les -x à ma gauche  (Est - Ouest)
 les +y en haut, les -y en bas   (Zénith - Nadir)   et...  si l'axe des z vient vers moi,
 les +z sont derrière moi et les -z devant.   Donc les -z sont au Nord (que je regarde) et les +z sont au Sud.
 Les vertex situés aux intersections des "grilles" (X-X, Y-Y et Z-Z) sont-ils utiles ?
 Ils le seraient si ses cubes individuels étaient coloriés ou soulignés pour mettre en valeur des flèches qu'ils contiennent ou d'autres particularités.
 Mais tant qu'il n'est pas possible de rendre sélectivement transparentes les parois de cubes individuels (ou de tel ou tel objet dessiné par les flèches), cette fonction est inutilisable et les vertex situés aux intersections des grilles sont donc inutiles.
 On pourrait ne garder que ceux situés sur les faces de l'espace qui, eux, servent à tracer les grilles X-X, Y-Y et Z-Z.
 Le nombre de vertex de l'espace serait alors de 12 par cube-unité (soit 12 * x * y * z) plus les vertex intersections des seules faces de l'espace (soit (x * y + x * z + y * z) * 2). 
 A raison, bien sûr de trois nombres par vertex plus les couleurs.
 Je comprends (maintenant seulement !) que si des régions du buffer lignes (idem pour le buffer triangles) sont laissées vides (occupées par des zéros) elles seront néanmoins redessinées en permanence et que le seul moyen d'éviter cela est de réallouer la taille du buffer à chaque délétion ou chaque ajout de flèche.
 Néanmoins, lorsque le nombre de flèches présent dans l'espace est invariant, - cas de mes premiers modèles - il peut être avantageux de travailler dans un buffer de taille fixe. Il faut, pour cela, fixer une "densité maximale de flèches dans l'espace" nécessairement arbitraire. 
 Bien que ce nombre reste toujours arbitraire, on peut estimer que certaines de ses valeurs seront plus utiles/utilisables que d'autres :
 - un espace totalement vide ou totalement saturé ne pourrait rien représenter
 - un espace trop vide ou trop plein (à définir - c'est intuitif) aurait peu de chances de représenter des phénomènes intéressants. La marche aléatoire d'un seul ou de quelques dimères dans un grand espace, par exemple, servira plus de test pour le bon fonctionnement de Gem-graph que de modèle d'étude.
 - on peut considérer un espace rempli de flèches aux 2/3 comme équivalent à un espace repli au tiers (1/3) mais où les flèches seraient écrites "en creux" et, par conséquent, moins lisibles. Inutile, donc, de remplir plus de la moitié de l'espace. 
 D'expérience,
 - les densités de l'ordre du tiers (1/3 des unités de l'espace occupées par au moins une flèche) suffisent à représenter un nombre de phénomènes tel qu'il n'est pas nécessaire, au moins dans un premier temps, de prévoir davantage (mais des réalloc sont toujours possibles) et les densités trop fortes sont peu lisibles.
 Un buffer lignes pourrait donc avoir une taille fixe qui serait calculée selon les paramètres suivants :
 -   x * y * z = nombre de cubes
 -   nombre de flèches moyen par cube  = 2   (il s'agit d'un nombre "moyen" qui surestime très probablement le nombre de flèches utilisé par la plupart des modèles)
 -   dessin d'une flèche seule dans un cube = 3 + 4 traits (soit 14 nombres)
 Faut-il coder cette option ?
--- a/data/.gitkeep
+++ b/data/.gitkeep
--- a/data/hicolor/apps/scalable/gemgraph.png
+++ b/data/hicolor/apps/scalable/gemgraph.png
--- a/data/hicolor/apps/scalable/gemgraph.svg
+++ b/data/hicolor/apps/scalable/gemgraph.svg
@ -0,0 +1,365 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!-- Created with Inkscape (http://www.inkscape.org/) -->
 <svg
   width="50mm"
   height="50mm"
   viewBox="0 0 50 50.000001"
   version="1.1"
   id="svg5"
   inkscape:version="1.2.1 (9c6d41e410, 2022-07-14)"
   sodipodi:docname="gemgraph.svg"
   inkscape:export-filename="gemgraph.png"
   inkscape:export-xdpi="400"
   inkscape:export-ydpi="400"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns="http://www.w3.org/2000/svg"
   xmlns:svg="http://www.w3.org/2000/svg">
  <sodipodi:namedview
     id="namedview7"
     pagecolor="#ffffff"
     bordercolor="#999999"
     borderopacity="1"
     inkscape:pageshadow="0"
     inkscape:pageopacity="0"
     inkscape:pagecheckerboard="0"
     inkscape:document-units="mm"
     showgrid="false"
     inkscape:zoom="3.0541689"
     inkscape:cx="100.02721"
     inkscape:cy="105.42966"
     inkscape:window-width="1920"
     inkscape:window-height="1011"
     inkscape:window-x="0"
     inkscape:window-y="32"
     inkscape:window-maximized="1"
     inkscape:current-layer="layer10"
     inkscape:snap-grids="false"
     showguides="false"
     inkscape:lockguides="false"
     inkscape:showpageshadow="0"
     inkscape:deskcolor="#d1d1d1">
    <inkscape:grid
       type="xygrid"
       id="grid679"
       originx="-13.661108"
       originy="-56.524582" />
  </sodipodi:namedview>
  <defs
     id="defs2">
    <marker
       style="overflow:visible"
       id="marker58350"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow1Mend"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.4,0,0,-0.4,-4,0)"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
         d="M 0,0 5,-5 -12.5,0 5,5 Z"
         id="path58348" />
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow2Send"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow2Send"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.3,0,0,-0.3,0.69,0)"
         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.625;stroke-linejoin:round"
         id="path58039" />
    </marker>
    <marker
       style="overflow:visible"
       id="Tail"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Tail"
       inkscape:isstock="true">
      <g
         transform="scale(-1.2)"
         id="g58054">
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M -3.8048674,-3.9585227 0.54352094,0"
           id="path58042" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M -1.2866832,-3.9585227 3.0617053,0"
           id="path58044" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M 1.3053582,-3.9585227 5.6537466,0"
           id="path58046" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M -3.8048674,4.1775838 0.54352094,0.21974226"
           id="path58048" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M -1.2866832,4.1775838 3.0617053,0.21974226"
           id="path58050" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M 1.3053582,4.1775838 5.6537466,0.21974226"
           id="path58052" />
      </g>
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow2Mend"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow2Mend"
       inkscape:isstock="true">
      <path
         transform="scale(-0.6)"
         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.625;stroke-linejoin:round"
         id="path58033" />
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow2Lend"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow2Lend"
       inkscape:isstock="true">
      <path
         transform="matrix(-1.1,0,0,-1.1,-1.1,0)"
         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.625;stroke-linejoin:round"
         id="path58027" />
    </marker>
    <marker
       style="overflow:visible"
       id="marker58284"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow1Lend"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.8,0,0,-0.8,-10,0)"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
         d="M 0,0 5,-5 -12.5,0 5,5 Z"
         id="path58282" />
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow1Mend"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow1Mend"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.4,0,0,-0.4,-4,0)"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
         d="M 0,0 5,-5 -12.5,0 5,5 Z"
         id="path58015" />
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow1Lend"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow1Lend"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.8,0,0,-0.8,-10,0)"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
         d="M 0,0 5,-5 -12.5,0 5,5 Z"
         id="path58009" />
    </marker>
    <linearGradient
       id="linearGradient7798"
       inkscape:swatch="solid">
      <stop
         style="stop-color:#000000;stop-opacity:1;"
         offset="0"
         id="stop7796" />
    </linearGradient>
    <clipPath
       clipPathUnits="userSpaceOnUse"
       id="clipPath66549">
      <path
         id="path66551"
         style="fill:#ff0000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:0.264583"
         d="m 12.135176,56.807902 v 0.259416 c 0.01208,-0.02305 0.02657,-0.04746 0.04496,-0.07545 0.02382,-0.03625 0.05508,-0.0677 0.08785,-0.09612 0.04746,-0.04115 0.07941,-0.06765 0.106453,-0.08785 z m 0.507463,0 c -0.168135,0.07167 -0.157367,0.05207 -0.302307,0.181901 -0.02701,0.02418 -0.0531,0.05092 -0.07235,0.08165 -0.05643,0.0901 -0.06755,0.146106 -0.09818,0.240298 -0.001,0.0031 -0.0021,0.0062 -0.0031,0.0093 h 0.351916 c 0.02605,-0.04031 0.05222,-0.08064 0.07906,-0.120404 0.06558,-0.09715 0.163785,-0.031 0.09818,0.06614 -0.0121,0.01791 -0.02376,0.03618 -0.03566,0.05426 h 0.30334 V 56.8079 Z" />
    </clipPath>
  </defs>
  <g
     inkscape:groupmode="layer"
     id="layer8"
     inkscape:label="bg"
     transform="translate(-9.5102355,-2.9755927)" />
  <g
     inkscape:label="cellules"
     inkscape:groupmode="layer"
     id="layer1"
     style="display:inline"
     transform="translate(-13.661107,-56.524581)" />
  <g
     inkscape:groupmode="layer"
     id="layer4"
     inkscape:label="flechouille"
     style="display:inline"
     transform="translate(-9.5102355,-2.9755927)" />
  <g
     inkscape:groupmode="layer"
     id="layer9"
     inkscape:label="flesh1"
     style="display:inline"
     transform="translate(-9.5102355,-2.9755927)" />
  <g
     inkscape:groupmode="layer"
     id="layer10"
     inkscape:label="flesh2"
     style="display:inline"
     transform="translate(-9.5102355,-2.9755927)">
    <g
       id="g1446"
       transform="matrix(0.84217281,0,0,0.84217281,7.5579735,3.4031577)">
      <path
         id="path2376-7"
         style="display:inline;fill:#dab82f;fill-opacity:1;fill-rule:evenodd;stroke:#dab82f;stroke-width:0.287;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:stroke fill markers"
         d="m 15.159701,73.562323 5.757321,9.910713 11.461618,-0.03061 5.7043,-9.941324 -5.757322,-9.910714 -11.461618,0.03061 z"
         transform="translate(-4.1508714,-53.548988)" />
      <path
         id="path2376-5"
         style="display:inline;fill:#267cc9;fill-opacity:1;fill-rule:evenodd;stroke:#267cc9;stroke-width:0.286544;stroke-opacity:1;paint-order:stroke fill markers"
         d="m 33.391148,83.983564 5.757406,9.911184 11.461794,-0.03061 5.703866,-9.941795 -5.756889,-9.91067 -11.461794,0.03061 z"
         transform="translate(-4.1508714,-53.548988)" />
      <path
         sodipodi:type="star"
         style="display:inline;fill:#ab231d;fill-opacity:1;fill-rule:evenodd;stroke:#ab231d;stroke-width:1.0016;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:stroke fill markers"
         id="path2376"
         inkscape:flatsided="true"
         sodipodi:sides="6"
         sodipodi:cx="115"
         sodipodi:cy="270"
         sodipodi:r1="40.000004"
         sodipodi:r2="24.287724"
         sodipodi:arg1="1.5707963"
         sodipodi:arg2="2.0943951"
         inkscape:rounded="0"
         inkscape:randomized="0"
         transform="matrix(-7.6531787e-4,-0.28654272,0.28654047,-7.6530994e-4,-54.816109,74.056392)"
         d="M 115,310 80.358981,290 80.35898,250 115,230 l 34.64102,20 0,40 z" />
      <path
         style="display:inline;fill:#dab82f;fill-opacity:1;stroke-width:1.7821;stroke-linecap:round;stroke-linejoin:round;paint-order:markers fill stroke"
         id="path9871-0"
         d="m 51.290209,24.661378 c 0.06813,-0.04434 0.139313,-0.08468 0.204411,-0.133017 0.707337,-0.526066 1.498335,-1.309612 2.004042,-1.97973 0.190982,-0.253076 0.347139,-0.522019 0.520708,-0.78303 0.262052,-0.519889 0.73164,-1.405151 0.304733,-1.863066 -0.126982,-0.136211 -0.31387,-0.243171 -0.524876,-0.260859 -0.881172,-0.07387 -2.050603,0.390377 -2.875777,0.638065 -2.450135,0.963662 -3.02362,1.142939 -5.737462,2.489326 -1.376626,0.682974 -4.725927,2.618726 -5.961425,3.338002 -2.57716,1.500361 -4.032983,2.387408 -6.588687,3.923362 -1.06058,0.649361 -2.126691,1.289981 -3.181743,1.948085 -1.726092,1.076694 -4.368744,2.780718 -6.076145,3.907225 -1.640185,1.082159 -3.570122,2.385172 -5.184891,3.523455 -0.725214,0.511217 -1.43886,1.037148 -2.15829,1.55572 -1.569214,1.184763 -3.17984,2.337107 -4.649971,3.630536 -0.442991,0.389746 -1.13435,1.046979 -1.5078105,1.529963 -0.1256906,0.162547 -0.2101781,0.343099 -0.3152668,0.514649 -0.014617,0.126926 -0.071886,0.263059 -0.04395,0.380762 0.065172,0.274572 0.3432357,0.351886 0.6241883,0.387038 0.765085,0.09573 1.588825,-0.237386 2.351599,-0.483667 0,0 1.098777,-0.634118 1.098777,-0.634118 v 0 c -0.460546,-0.06551 -0.235661,-0.05087 -0.78717,-0.04303 -0.258754,0.0037 -0.861893,0.0742 -1.002051,-0.174211 -0.04078,-0.07231 -0.02257,-0.169313 -0.03384,-0.25397 0.05833,-0.140035 0.0957,-0.285357 0.174963,-0.420098 0.286693,-0.48741 0.727263,-0.96086 1.139644,-1.368373 1.255548,-1.240725 2.682963,-2.332271 4.083015,-3.431188 1.867358,-1.398946 2.316281,-1.756661 4.28181,-3.136316 3.809841,-2.674227 7.747857,-5.170674 11.725022,-7.600607 3.297314,-1.983176 6.593331,-3.978976 9.980197,-5.805686 0.47592,-0.256683 3.340325,-1.776424 4.44246,-2.231104 0.634904,-0.261931 1.282421,-0.481284 1.923634,-0.721924 0.667965,-0.184859 1.824649,-0.567396 2.555436,-0.574512 0.703097,-0.0069 0.903359,0.49255 0.750227,1.070925 -0.06335,0.239271 -0.201987,0.470062 -0.30298,0.705094 -0.176227,0.255075 -0.332792,0.519792 -0.528675,0.765222 -0.678963,0.850686 -1.556495,1.575428 -2.508582,2.164606 0,0 1.804748,-0.573529 1.804749,-0.57353 z" />
      <path
         style="display:inline;fill:#267cc9;fill-opacity:1;stroke-width:1.7821;stroke-linecap:round;stroke-linejoin:round;paint-order:markers fill stroke"
         id="path9871"
         d="m 24.514377,8.0196868 c -0.0036,-0.081211 -0.0022,-0.1630167 -0.01083,-0.243639 C 24.409395,6.8995742 24.135879,5.8203088 23.815259,5.0444224 23.694173,4.7514037 23.541736,4.4803339 23.404975,4.1982902 23.090092,3.7085914 22.565777,2.8546038 21.954532,2.9899458 c -0.181817,0.040256 -0.368845,0.1469716 -0.491202,0.3197861 -0.510979,0.7216783 -0.704672,1.964892 -0.910181,2.8015689 -0.413577,2.6001459 -0.550253,3.185249 -0.767964,6.2068872 -0.110433,1.532761 -0.142966,5.401081 -0.150478,6.83068 -0.01566,2.982045 0.0095,4.686638 0.03541,7.668267 0.02105,1.243406 0.03176,2.487138 0.06315,3.730218 0.05137,2.033723 0.177927,5.175584 0.281704,7.218491 0.09969,1.962482 0.242567,4.28672 0.403514,6.255797 0.07228,0.884338 0.163116,1.766179 0.244673,2.649267 0.224119,1.953425 0.399286,3.92607 0.767327,5.849295 0.110902,0.57952 0.326172,1.508815 0.552701,2.075764 0.07624,0.190806 0.188902,0.355258 0.283353,0.532886 0.101912,0.07706 0.190146,0.19548 0.305737,0.231163 0.269645,0.08324 0.477417,-0.11708 0.65033,-0.341292 0.470873,-0.610573 0.602057,-1.489378 0.777101,-2.271579 0,0 0.01147,-1.268575 0.01147,-1.268575 v 0 c -0.290245,0.363527 -0.163449,0.177222 -0.436687,0.656349 -0.128197,0.224795 -0.373619,0.780238 -0.658791,0.774886 -0.083,-0.0016 -0.157329,-0.06651 -0.235993,-0.09977 -0.09104,-0.121334 -0.197268,-0.227315 -0.273122,-0.364002 -0.27439,-0.494442 -0.458636,-1.114368 -0.600384,-1.676536 -0.43157,-1.711593 -0.647363,-3.495526 -0.883397,-5.259626 -0.257297,-2.319026 -0.33759,-2.887396 -0.528428,-5.281207 -0.369909,-4.639995 -0.521582,-9.300167 -0.596074,-13.960303 -0.03472,-3.847605 -0.08097,-7.700501 0.06458,-11.545828 0.02046,-0.540341 0.165246,-3.779702 0.33302,-4.9600775 0.09665,-0.6799791 0.236378,-1.3492097 0.354567,-2.0238137 0.179832,-0.6693367 0.437452,-1.860086 0.802311,-2.4933138 0.351034,-0.6092367 0.882958,-0.5282521 1.303523,-0.1027019 0.173984,0.17605 0.302446,0.4126537 0.453671,0.6189815 0.130299,0.28132 0.278888,0.5505961 0.390898,0.843955 0.388235,1.0168237 0.567157,2.1407899 0.591434,3.2601689 0,0 0.422065,-1.8460517 0.422065,-1.8460527 z" />
      <path
         id="path9871-7"
         style="fill:#ab231d;fill-opacity:1;stroke-width:1.67983;stroke-linecap:round;stroke-linejoin:round;paint-order:markers fill stroke"
         d="m 9.6198192,12.493488 c 0.0021,0.0955 0.01985,0.196647 0.04313,0.296052 0.169013,0.721871 0.7272528,1.351126 1.1903648,1.954689 l 0.907948,0.774254 c -0.09495,-0.437207 -0.03367,-0.229673 -0.221731,-0.723924 -0.08825,-0.231887 -0.347154,-0.751369 -0.179067,-0.962064 0.04894,-0.06131 0.13833,-0.0779 0.20761,-0.11684 0.139903,0.0049 0.277457,-0.01026 0.419684,0.01526 0.51448,0.09269 1.067539,0.328738 1.554457,0.561815 1.482484,0.709638 2.892894,1.624786 4.30063,2.512815 1.820048,1.207114 2.276321,1.489975 4.112009,2.792092 3.558173,2.523941 7.005007,5.223746 10.407573,7.981457 2.793876,2.296977 5.598396,4.588321 8.286818,7.019151 0.377771,0.341584 2.629473,2.406246 3.383831,3.244765 0.434564,0.483043 0.836502,0.991944 1.254784,1.487902 0.378985,0.539021 1.089008,1.450834 1.335407,2.106854 0.237064,0.631165 -0.127672,0.981342 -0.676668,1.039902 -0.227119,0.02422 -0.471269,-0.02225 -0.707106,-0.03338 -0.277854,-0.07211 -0.55767,-0.122855 -0.833676,-0.215907 -0.956645,-0.322674 -1.86982,-0.867162 -2.690805,-1.524784 0,0 1.087633,1.431204 1.087636,1.431204 0.06064,0.04632 0.118569,0.09642 0.181643,0.138651 0.686101,0.458548 1.621751,0.905156 2.365754,1.133087 0.280982,0.08607 0.564393,0.135259 0.846488,0.202951 0.53438,0.05944 1.451736,0.181845 1.706172,-0.358405 0.07569,-0.160694 0.10688,-0.365543 0.05275,-0.561668 C 47.729441,41.87038 46.944316,40.974466 46.459476,40.31515 44.823107,38.435042 44.480179,37.979463 42.427148,35.991805 41.385719,34.983552 38.615865,32.623384 37.589538,31.754615 35.448693,29.942431 34.205092,28.932363 32.040613,27.151606 31.132069,26.41668 30.229432,25.673595 29.315172,24.946624 27.819404,23.757286 25.481303,21.95537 23.948731,20.799802 22.476492,19.68972 20.718672,18.39374 19.2064,17.325633 c -0.679178,-0.479702 -1.367442,-0.943701 -2.051061,-1.415692 -1.537365,-1.011265 -3.060173,-2.071033 -4.658647,-2.956102 -0.481666,-0.266694 -1.275778,-0.666531 -1.814969,-0.838895 -0.181463,-0.05801 -0.36498,-0.07249 -0.54744,-0.108848 -0.114229,0.0299 -0.2505028,0.02423 -0.3428048,0.08938 -0.134559,0.095 -0.17514,0.238823 -0.171655,0.397998 z" />
    </g>
  </g>
  <g
     inkscape:groupmode="layer"
     id="layer2"
     inkscape:label="G"
     style="display:none"
     transform="translate(-13.661107,-56.524581)">
    <path
       style="fill:#280b0b;fill-rule:evenodd;stroke-width:1.17527;paint-order:stroke fill markers"
       id="path5061"
       d="m 47.194037,73.534828 c -0.152935,-0.02949 -0.303017,-0.07937 -0.458813,-0.08853 -0.679709,-0.03995 -1.768198,0.04518 -2.38881,0.11554 -1.223064,0.138665 -2.765059,0.390668 -3.937257,0.684792 -0.839978,0.210771 -1.660405,0.485814 -2.490608,0.728716 -0.884544,0.345283 -1.788596,0.648962 -2.653642,1.035841 -0.909546,0.406787 -1.800807,0.853166 -2.663731,1.342296 -2.412915,1.367704 -4.486744,2.51416 -6.405435,4.408919 -1.866912,1.843619 -1.990901,2.396542 -3.238075,4.575011 -0.561878,1.750705 -1.088708,2.71144 -0.869682,4.565477 0.159213,1.34766 0.874773,2.787172 1.786272,3.822154 1.216923,1.381785 1.925136,1.542456 3.563057,2.363074 0.716128,0.18719 1.414128,0.45402 2.148385,0.56157 1.476245,0.21625 3.235625,0.10133 4.696908,-0.14504 1.121152,-0.18903 2.97206,-0.68308 4.011344,-1.196472 1.272067,-0.62838 2.47331,-1.377211 3.709964,-2.065815 0.35181,-0.337103 0.758836,-0.629743 1.055436,-1.011317 0.72856,-0.937278 0.897486,-2.100108 0.141797,-3.080578 -0.595431,-0.772532 -1.342216,-1.055858 -2.19073,-1.515049 -1.235002,-0.55263 -2.558697,-0.827258 -3.893906,-1.051661 -0.275889,-0.04638 -0.552772,-0.08735 -0.829558,-0.128686 -0.131541,-0.01964 -0.282401,-0.120898 -0.39539,-0.05429 -0.895481,0.527899 -1.693943,1.190186 -2.540911,1.785276 0.284581,-2.67e-4 0.56979,0.01702 0.853743,-8.46e-4 0.506251,-0.03178 1.009926,-0.09368 1.514041,-0.147908 1.126082,-0.121137 2.736584,-0.297869 3.82806,-0.538812 0.754661,-0.166597 1.489563,-0.404875 2.234347,-0.60731 0,0 0.920256,-0.654146 0.920256,-0.654146 v 0 c -0.434883,-0.01503 -0.869794,-0.06071 -1.304655,-0.04507 -0.581879,0.02095 -1.159157,0.106441 -1.739228,0.154544 -1.18152,0.09798 -2.372701,0.217893 -3.559116,0.102923 -0.916483,0.5683 -1.884337,1.068757 -2.74944,1.704899 -0.141003,0.10369 0.351958,-0.06499 0.53043,-0.07318 1.681682,-0.07713 3.345531,0.304805 4.880908,0.931638 0.799,0.46379 1.416078,0.69572 1.942346,1.458546 0.592972,0.859518 0.458921,1.949721 -0.173001,2.750154 -0.276772,0.350576 -0.658067,0.615269 -0.987097,0.922899 0.245124,-0.103658 0.98509,-0.404324 0.73537,-0.310969 -0.632522,0.236462 -1.240205,0.533554 -1.884228,0.74046 -2.149245,0.690501 -4.511087,1.07065 -6.77952,0.758774 -0.721485,-0.0992 -1.411354,-0.346295 -2.11703,-0.519443 -1.640635,-0.805623 -2.245832,-0.913379 -3.477641,-2.270221 -0.96095,-1.05849 -1.587822,-2.272955 -1.78689,-3.664295 -0.259956,-1.816874 0.168031,-2.613401 0.657162,-4.361084 0.425327,-0.759815 0.774863,-1.562071 1.275982,-2.279451 1.429152,-2.045916 2.143593,-2.436091 4.081957,-4.040224 0.316886,-0.262247 0.59847,-0.570258 0.955512,-0.781482 2.025704,-1.198385 3.09556,-1.525226 5.269798,-2.384256 0.818076,-0.241442 1.624513,-0.521413 2.454228,-0.724331 2.130308,-0.520981 4.327258,-0.63021 6.515425,-0.60327 0,0 1.751669,-1.169825 1.751669,-1.169825 z" />
  </g>
  <g
     inkscape:groupmode="layer"
     id="layer3"
     inkscape:label="MA flèche."
     style="display:none"
     transform="translate(-13.661107,-56.524581)">
    <path
       style="fill:#280b0b;fill-rule:evenodd;stroke-width:0.714375;paint-order:stroke fill markers"
       id="path5381"
       d="m 43.971768,67.441733 c 0.05775,-0.05692 0.128513,-0.10313 0.173233,-0.170768 0.162618,-0.245951 0.183602,-0.539006 0.142486,-0.828781 -0.09153,-0.64507 -0.379521,-1.25381 -0.74368,-1.786699 -0.278135,-0.407003 -0.621742,-0.765165 -0.932614,-1.147747 -0.450882,-0.405614 -0.862005,-0.860351 -1.352645,-1.216845 -1.287082,-0.935183 -2.942582,-1.738318 -4.427165,-2.263733 -0.917008,-0.324543 -1.849646,-0.624866 -2.806599,-0.799441 -1.090528,-0.198943 -2.202138,-0.296621 -3.310485,-0.316486 -1.191779,-0.02135 -2.380459,0.128775 -3.570687,0.193161 -2.978677,0.600305 -4.348873,0.689899 -7.132609,2.001306 -2.3177,1.091861 -4.55482,2.649093 -6.378025,4.451165 -2.382225,2.354611 -2.702801,3.298848 -4.3978662,6.138915 -0.4674116,1.161381 -1.0514803,2.282373 -1.4022345,3.484142 -1.0595501,3.630274 -1.0911387,7.625418 -0.1579766,11.283489 0.7927453,3.107624 1.3487625,3.662474 2.9042413,6.375218 0.712228,0.809061 1.317105,1.727083 2.136684,2.427181 2.53145,2.162405 5.947581,3.105748 9.228512,3.024735 1.241056,-0.03064 2.463828,-0.306895 3.695742,-0.460343 0,0 0.09928,-0.07358 0.09928,-0.07358 v 0 c -2.671283,0.166076 -3.99527,0.424982 -6.652684,-0.114218 -2.190671,-0.444487 -4.12383,-1.265971 -5.870705,-2.680129 C 12.373736,94.280457 11.718647,93.395442 10.969984,92.612026 9.2992188,89.965113 8.7163994,89.46231 7.8613245,86.364388 6.8532454,82.712133 6.8825493,78.773096 7.9329999,75.133609 8.2780046,73.938275 8.8494477,72.82027 9.3076717,71.663601 c 1.6956393,-2.839193 2.0162173,-3.782898 4.3989143,-6.136438 1.768459,-1.746817 3.932715,-3.27863 6.188337,-4.330804 2.846376,-1.32774 4.023184,-1.364813 7.059864,-1.953508 1.151167,-0.03817 2.302893,-0.166849 3.453505,-0.11452 1.059299,0.04818 2.118246,0.187725 3.153987,0.415039 0.920022,0.201917 1.816873,0.512402 2.689336,0.867391 1.484852,0.604155 2.847912,1.409907 4.055237,2.464565 0.44142,0.385604 0.798965,0.8578 1.198449,1.286703 0.260638,0.401082 0.559003,0.780034 0.781915,1.203248 0.34776,0.66026 0.651515,1.57521 0.414351,2.331429 -0.03269,0.104254 -0.148834,0.23331 -0.227269,0.325612 0,0 1.49747,-0.580585 1.49747,-0.580585 z" />
  </g>
  <g
     inkscape:groupmode="layer"
     id="layer5"
     inkscape:label="flèches test 2"
     style="display:none"
     transform="translate(-13.661107,-56.524581)">
    <path
       id="path5852"
       style="fill:#00aad4;fill-rule:evenodd;stroke-width:0.7248;paint-order:stroke fill markers"
       d="m 50.580764,54.861594 c -0.383603,-0.005 -0.77888,0.07138 -1.287258,0.111107 -1.874245,0.651097 -2.342838,0.725278 -4.327901,1.972487 -0.689613,0.433284 -1.31721,0.977789 -1.9451,1.51257 -1.517796,1.292717 -3.049527,2.833153 -4.398698,4.323768 -0.817769,0.903499 -1.592527,1.852438 -2.389002,2.778641 -0.83879,1.143696 -1.708346,2.261386 -2.516643,3.431315 -1.755545,2.540987 -3.421721,5.256226 -4.944401,7.971089 -1.407287,2.509125 -2.971334,5.531485 -4.117061,8.208285 -0.56369,1.316968 -1.03426,2.680022 -1.551327,4.019909 -1.100202,3.23337 -2.105667,6.531425 -2.63188,9.94513 -0.125572,0.814615 -0.20428,1.637865 -0.265617,2.461345 -0.132345,1.77678 -0.07198,1.98397 0.0217,3.64009 0.117922,0.57137 0.195279,1.52028 0.671277,1.96681 0.446437,0.4188 1.168872,0.36164 1.665531,0.16898 2.315055,-0.89821 2.133343,-0.86017 3.599263,-1.96681 0.477516,-0.4782 1.302372,-1.28394 1.734779,-1.80351 0.226247,-0.27184 0.418581,-0.57572 0.627869,-0.86351 l -0.0739,0.0233 c -0.413872,0.35083 -0.827506,0.70116 -1.241268,1.05213 -1.661328,1.4092 -0.790098,0.71713 -2.559017,2.03244 -0.253318,0.16511 -0.531689,0.29319 -0.784965,0.45837 -0.151864,0.0688 -0.315908,0.17757 -0.464571,0.17673 -1.059091,-0.006 -1.307301,-1.01867 -1.614889,-1.91461 -0.08572,-0.50496 -0.203668,-1.0043 -0.256832,-1.51464 -0.14601,-1.40156 -0.127626,-2.93146 -0.01499,-4.326867 0.161498,-2.000666 0.496653,-4.072306 0.965833,-6.008418 0.300623,-1.240554 0.691436,-2.452568 1.037146,-3.678846 0.48515,-1.327261 0.924648,-2.675572 1.455208,-3.98167 1.094955,-2.695487 2.533233,-5.627015 3.928958,-8.139554 1.493179,-2.687981 3.273555,-5.522076 5.042069,-8.001579 0.847561,-1.188299 1.764798,-2.314033 2.647384,-3.471106 0.812311,-0.930299 1.598216,-1.889649 2.437061,-2.791042 1.363729,-1.465421 3.131672,-3.158582 4.686536,-4.401283 0.699849,-0.559345 1.438171,-1.057997 2.170411,-1.564761 0.273775,-0.189476 0.545915,-0.389927 0.845942,-0.522965 0.485113,-0.215112 0.998426,-0.3443 1.497584,-0.51625 0.941832,-0.07425 1.493787,-0.27229 2.369365,0.22066 0.330827,0.186259 0.61255,0.474774 0.862478,0.777214 0.591928,0.716287 0.964321,1.598652 1.199412,2.521809 0.133739,0.525175 0.180231,1.072899 0.270266,1.609204 0.02093,0.554861 0.07791,1.109422 0.06253,1.664497 -0.01431,0.51627 -0.08052,1.029877 -0.151413,1.540475 -0.178186,1.282975 -0.494784,2.565691 -1.061434,3.70985 l 1.534274,-0.550352 c 0.378547,-1.66502 0.630994,-3.377803 0.664043,-5.096848 0.01085,-0.564105 -0.02061,-1.128287 -0.03101,-1.692402 -0.07658,-0.548011 -0.113464,-1.104384 -0.22996,-1.643828 -0.201898,-0.934899 -0.529145,-1.875623 -1.086238,-2.632913 -0.236541,-0.321543 -0.505868,-0.633 -0.833541,-0.836126 -0.462113,-0.286472 -0.834409,-0.373258 -1.218015,-0.378272 z" />
    <path
       id="path5902"
       style="fill:#ff7f2a;fill-rule:evenodd;stroke-width:0.630357;paint-order:stroke fill markers"
       d="m 13.900892,75.502767 c -0.05938,-0.0011 -0.118877,-7.94e-4 -0.177767,0.0047 -0.546328,0.04895 -1.249165,0.180549 -1.757516,0.290939 -0.845372,0.18357 -1.788657,0.431675 -2.6019081,0.679029 -0.4679362,0.142327 -0.9264012,0.302768 -1.3895792,0.454234 -1.2701296,0.491239 -2.0021941,0.723643 -3.1998046,1.490866 -0.3019258,0.193421 -0.560388,0.439545 -0.7358724,0.711584 -0.1580843,0.245068 -0.3012541,0.530953 -0.2397786,0.800986 0.2152168,0.945341 1.3861531,1.46838 2.2065834,2.019515 0.7993292,0.371985 1.5672252,0.787799 2.3977864,1.115695 2.2003001,0.868648 4.8312781,1.604237 7.1747561,2.142503 1.519507,0.349012 3.054567,0.659889 4.601786,0.92501 3.380123,0.579186 7.532289,1.051276 10.940416,1.472776 4.454605,0.423484 6.247098,0.645314 10.670151,0.870749 1.566847,0.07986 3.137151,0.120047 4.706689,0.155546 1.51878,0.03435 5.183235,0.06461 6.89002,0.0078 0.694232,-0.02312 1.384985,-0.09093 2.077392,-0.136424 1.447961,-0.287345 2.13329,-0.294275 3.30264,-1.414383 0.18696,-0.179086 0.01169,-0.477136 -0.113689,-0.686263 -0.244393,-0.407673 -1.289336,-1.133631 -1.753381,-1.307415 -0.147785,-0.05535 -0.301603,-0.09826 -0.457853,-0.136424 0.117697,0.07253 0.209759,0.182218 0.31161,0.276468 0.41097,0.380302 0.460653,0.423897 0.774113,0.809768 0.354991,0.436996 0.263464,0.289899 0.429432,0.594281 0.02671,0.07295 0.131913,0.262882 0.09508,0.378788 -0.0263,0.08272 -0.06853,0.15966 -0.109553,0.236161 -0.0052,0.0098 -0.01839,0.01262 -0.02739,0.01913 -0.0021,0.0013 -0.0039,0.0034 -0.0062,0.0057 -0.01868,0.06898 -0.04505,0.136785 -0.08526,0.194821 -0.03005,0.04335 -0.132156,0.06317 -0.248047,0.0739 -0.0057,0.01267 -0.0074,0.02077 -0.01447,0.03514 -0.0073,0.01474 -0.0191,0.02668 -0.03256,0.03772 0.30294,-0.07243 0.582663,-0.185004 0.419097,-0.107487 -0.222115,0.10527 -0.466,0.175705 -0.714168,0.239263 -0.0016,0.0063 -0.0024,0.01283 -0.0041,0.01913 -0.0053,0.01998 -0.03155,0.0088 -0.05685,-0.0026 -0.03115,0.0078 -0.06122,0.01725 -0.0925,0.02479 -0.03724,0.0098 -0.07731,0.01995 -0.125574,0.03152 -0.19191,0.04552 -0.385082,0.0889 -0.571539,0.143145 -0.810416,0.116102 -1.614191,0.26588 -2.431378,0.348298 -2.489295,0.251063 -4.874469,0.309967 -7.390762,0.279053 -5.148701,-0.0634 -10.277188,-0.49431 -15.375823,-1.025924 C 29.348294,87.336754 27.499973,87.146283 25.674346,86.860686 22.561469,86.373715 19.221058,85.666071 16.196372,84.887162 13.754903,84.258443 11.500339,83.607301 9.2474422,82.646472 8.4506797,82.306665 7.7209261,81.879236 6.9576595,81.495637 6.2836925,80.980139 5.1531914,80.335643 4.9324601,79.508164 c -0.03267,-0.122478 -0.034864,-0.234384 -0.014986,-0.338481 0.00359,-0.18151 0.019971,-0.176255 0.1038696,-0.344684 0.1640695,-0.263128 0.1096889,-0.203168 0.2930054,-0.407209 0.058642,-0.06527 0.1161214,-0.131353 0.1788004,-0.192752 0.00122,-0.0013 0.00288,-0.0019 0.00414,-0.0031 0.00567,-0.0062 0.011636,-0.0122 0.017571,-0.0181 0.021439,-0.02133 0.046669,-0.03796 0.07028,-0.05685 0.046792,-0.03742 0.093938,-0.07475 0.1431435,-0.108003 0.04413,-0.04101 0.091399,-0.06514 0.147278,-0.0894 0.00386,-0.0016 0.00767,-0.003 0.011369,-0.0041 0.00925,-0.01048 0.016378,-0.02249 0.030489,-0.02945 0.400263,-0.197601 0.8454358,-0.333861 1.2681397,-0.500745 0.4377661,-0.137829 0.8711104,-0.28508 1.3136149,-0.413411 0.8224134,-0.238509 1.5586414,-0.41729 2.4070884,-0.576194 0.643359,-0.120489 1.0135,-0.15648 1.64021,-0.238744 0.149614,-0.01963 0.299098,-0.04061 0.448552,-0.06098 l 1.08417,-0.620633 c -0.05928,2.65e-4 -0.118909,-0.0016 -0.178284,-0.0026 z m 40.756684,9.512083 c 0.01352,0.0136 0.02625,0.02775 0.03979,0.04134 0.09605,0.02021 0.191669,0.04322 0.286805,0.06821 -0.108259,-0.03947 -0.217215,-0.07534 -0.326596,-0.109553 z m 1.517737,0.823722 c 0.05162,0.0471 0.105056,0.09224 0.15503,0.141075 -0.05709,-0.05467 -0.109723,-0.103076 -0.15503,-0.141075 z m 0.192754,0.177765 c 0.266166,0.266372 0.494906,0.571302 0.749824,0.848011 0.0038,0.0059 0.02831,0.04017 0.04083,0.05684 5.29e-4,-0.01278 2.64e-4,-0.0231 -0.0016,-0.02687 -0.03487,-0.06838 -0.105976,-0.11117 -0.153995,-0.171048 -0.06281,-0.07832 -0.118954,-0.161891 -0.178285,-0.242879 -0.0928,-0.09506 -0.284781,-0.296784 -0.456819,-0.464056 z" />
    <path
       id="path5906"
       style="fill:#a02c2c;fill-rule:evenodd;stroke-width:0.766506;paint-order:stroke fill markers"
       d="m 13.647225,55.974874 c -0.95397,-0.01873 -1.910408,0.767466 -2.43551,1.246436 -0.192447,0.17554 -0.235527,0.430342 -0.303857,0.671793 -0.0066,0.03381 -0.01307,0.06767 -0.02067,0.101285 -0.0106,0.04686 -0.02224,0.09341 -0.03359,0.140044 -3.7e-4,0.0021 -6.61e-4,0.0035 -10e-4,0.0057 -0.0084,0.439891 -0.05294,0.881558 -0.01188,1.319298 0.05798,0.61827 0.17734,1.231119 0.31626,1.838647 0.388904,1.700753 0.881911,3.078107 1.507402,4.734595 1.020323,2.702136 1.28219,3.183617 2.500622,5.936588 0.509506,1.13588 1.00614,2.27624 1.528589,3.407545 1.193103,2.583527 2.186784,4.670462 3.608049,7.174756 1.451115,2.556889 3.045887,5.018278 4.714956,7.469312 0.77166,1.133171 1.580192,2.246479 2.370399,3.369818 1.861506,2.766793 3.829529,5.484683 5.991882,8.080639 0.85168,1.02247 2.162622,2.50383 3.179651,3.46026 0.404535,0.38038 0.856139,0.72111 1.28416,1.08159 0.910823,0.46467 1.211078,0.75697 2.260844,0.82062 0.310859,0.0188 0.631605,-0.0131 0.930693,-0.0935 0.52552,-0.14139 1.271103,-0.69238 1.86862,-1.19631 -0.138748,0.0484 -0.279945,0.0932 -0.374656,0.12764 -0.652457,0.23725 -1.453875,0.23139 -2.117182,0.0765 -0.464331,-0.10843 -0.888111,-0.31729 -1.33222,-0.47594 -0.498075,-0.31356 -1.023741,-0.59668 -1.493964,-0.94102 -1.280417,-0.93765 -2.500635,-2.11906 -3.568258,-3.22358 -2.376549,-2.458682 -4.482979,-5.102705 -6.552573,-7.760246 -0.79016,-1.123278 -1.598782,-2.236711 -2.370397,-3.369821 -1.539602,-2.260899 -3.394751,-5.104876 -4.714441,-7.468793 -1.34098,-2.402054 -2.405407,-4.745826 -3.470589,-7.24762 -0.489842,-1.150493 -0.939118,-2.314046 -1.4087,-3.471106 -0.396297,-1.091861 -1.781844,-4.87394 -2.181262,-6.102469 -0.524561,-1.613445 -1.041168,-3.307059 -1.25677,-5.00848 -0.05184,-0.246809 -0.09613,-0.495335 -0.130742,-0.745176 -0.02412,-0.20098 -0.04591,-0.403381 -0.03721,-0.606163 5.29e-4,-0.01212 0.0029,-0.0223 0.0062,-0.03101 -0.0038,-0.04418 -0.0066,-0.08848 -0.0072,-0.132808 -0.0044,-0.309292 0.0018,-0.31641 0.02015,-0.626835 0.0098,-0.127135 0.01693,-0.254481 0.02946,-0.381373 0.0041,-0.04165 0.01307,-0.08286 0.02067,-0.124023 0.04812,-0.261715 0.109155,-0.52102 0.182934,-0.776698 0.008,-0.02789 0.02109,-0.04671 0.03566,-0.05788 0.0057,-0.01455 0.0063,-0.03066 0.01292,-0.04496 0.05643,-0.122801 0.03556,-0.09066 0.08733,-0.159163 0.03115,-0.04102 0.06116,-0.08289 0.09663,-0.120407 0.04364,-0.04617 0.09613,-0.08346 0.149862,-0.116789 0.02179,-0.01352 0.04231,-0.01945 0.05943,-0.01963 0.0015,0 0.0027,-3.2e-5 0.0041,0 0.04213,-0.0095 0.08446,-0.01667 0.126607,-0.01601 1.322397,0.01995 2.355981,0.916221 3.315043,1.563211 0.38241,0.332304 0.78279,0.649592 1.147217,0.996839 0.586986,0.559316 1.33994,1.391389 1.807125,2.048455 0.323479,0.454951 0.558248,0.961326 0.778764,1.459857 L 21.22868,61.99003 C 21.087885,61.792482 20.900241,61.520524 20.742922,61.349241 20.537811,61.125919 20.31145,60.918269 20.096966,60.701737 19.289824,59.886868 18.98196,59.543531 18.095021,58.7494 c -0.379237,-0.339553 -0.777873,-0.662101 -1.166854,-0.993222 -0.860053,-0.609714 -1.916495,-1.605227 -3.09025,-1.766816 -0.06345,-0.0087 -0.127088,-0.01323 -0.190686,-0.01447 z m 29.255579,49.569066 c 0.260734,-0.0909 0.504876,-0.19892 0.359667,-0.30644 -0.0013,-10e-4 -0.0024,-0.002 -0.0036,-0.003 -0.110098,0.0989 -0.228145,0.20115 -0.356049,0.30903 z m 0.35605,-0.30902 c 0.31151,-0.27976 0.545616,-0.51105 0.60048,-0.58033 0.250232,-0.31599 0.125283,-0.75577 0.188103,-1.13378 -0.0084,-0.94374 0.02339,-1.95697 -0.159163,-2.88975 -0.09373,-0.47891 -0.281665,-0.939138 -0.422714,-1.408697 l -0.0801,0.03979 c -0.126992,0.601723 -0.276707,1.200297 -0.380857,1.805057 -0.0958,0.5563 -0.145746,1.11722 -0.218591,1.67587 -0.08769,0.4993 -0.175353,0.9988 -0.263033,1.4981 -0.887127,2.85991 -0.465799,0.11039 0.735872,0.99374 z" />
    <path
       style="fill:#a0a0a0;stroke:none;stroke-width:0.158245"
       d=""
       id="path7782"
       transform="scale(0.26458333)" />
    <path
       style="fill:#a0a0a0;stroke:none;stroke-width:0.158245"
       d=""
       id="path7821"
       transform="scale(0.26458333)" />
    <path
       style="fill:#a02c2c;fill-opacity:1;stroke:none;stroke-width:0.0296006"
       d="m 11.641617,57.15 c -0.01479,-0.06852 0.01315,0.06065 5e-5,0 z"
       id="path37999"
       inkscape:transform-center-x="-0.04769897"
       inkscape:transform-center-y="0.93565869"
       sodipodi:nodetypes="ccc" />
    <path
       id="path49005"
       clip-path="url(#clipPath66549)"
       style="fill:none;stroke:#000000;stroke-width:0.999999px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
       transform="scale(0.26458333)"
       d="m 48.041016,215.17773 -2,1 c 0.655801,-0.2448 1.293277,-0.56448 1.974609,-0.72656 0.15617,-0.037 0.61754,-0.062 0.466797,-0.11719 -0.146608,-0.0536 -0.294262,-0.10416 -0.441406,-0.15625 z" />
  </g>
  <g
     inkscape:groupmode="layer"
     id="layer7"
     inkscape:label="flèches test 4"
     style="display:none"
     transform="translate(-11.57442,-3.1941091)">
    <g
       inkscape:groupmode="layer"
       id="layer6"
       inkscape:label="flèches test 3"
       transform="translate(-2.0866871,-53.330472)"
       style="display:none">
      <path
         id="path175"
         style="display:inline;fill:#ecb41a;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.276002;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:0;paint-order:stroke fill markers"
         d="m 32.00153,53.857243 c -0.258918,0.187592 -0.491347,0.445564 -0.814943,0.730945 -0.980303,1.452359 -1.262744,1.745197 -2.06597,3.725697 -0.279042,0.688027 -0.469685,1.433302 -0.664623,2.171008 -0.471228,1.783256 -0.847366,3.769946 -1.122296,5.625953 -0.16664,1.124973 -0.28533,2.26451 -0.428145,3.396858 -0.07947,1.325979 -0.190498,2.6467 -0.238494,3.978261 -0.104239,2.892032 -0.07519,5.877645 0.04972,8.791302 0.115473,2.692852 0.342338,5.871054 0.703594,8.56628 0.177742,1.326038 0.437237,2.64212 0.655846,3.96305 0.626331,3.113934 1.343351,6.231873 2.429959,9.202203 0.259296,0.7088 0.553609,1.40106 0.859643,2.08483 0.66032,1.47534 0.788067,1.60951 1.548841,2.87626 0.319777,0.39431 0.771533,1.10831 1.278415,1.22475 0.475396,0.10922 0.934952,-0.29687 1.186242,-0.69769 1.17125,-1.86848 1.065634,-1.74756 1.580563,-3.35734 0.118114,-0.61772 0.330708,-1.66871 0.401189,-2.29672 0.03688,-0.32861 0.03756,-0.66569 0.05636,-0.99846 l -0.03965,0.0553 c -0.129196,0.48495 -0.258445,0.96936 -0.387511,1.45436 -0.518219,1.94732 -0.22667,0.96334 -0.856492,2.88993 -0.100004,0.25744 -0.232366,0.49804 -0.332303,0.75551 -0.07267,0.1304 -0.136648,0.29861 -0.236522,0.37218 -0.711541,0.52415 -1.304568,-0.15512 -1.888137,-0.71209 -0.270231,-0.35771 -0.559664,-0.69484 -0.810367,-1.07307 -0.688511,-1.03872 -1.321063,-2.26136 -1.833828,-3.42435 -0.73517,-1.66747 -1.384002,-3.477933 -1.88598,-5.247829 -0.321641,-1.134052 -0.570873,-2.290511 -0.856313,-3.435762 -0.234654,-1.294978 -0.508744,-2.583854 -0.704077,-3.884722 -0.403125,-2.684697 -0.675899,-5.728052 -0.800553,-8.41784 -0.133358,-2.877601 -0.136039,-6.014513 0.0027,-8.864256 0.06653,-1.365738 0.206096,-2.716648 0.309248,-4.075109 0.151683,-1.143505 0.273455,-2.296866 0.455092,-3.430695 0.295292,-1.843294 0.765193,-4.069073 1.282319,-5.831168 0.232762,-0.793122 0.516858,-1.557324 0.793463,-2.324918 0.103415,-0.287001 0.201119,-0.581884 0.345897,-0.837227 0.234096,-0.412868 0.52329,-0.771664 0.784981,-1.157312 0.599228,-0.529215 0.885266,-0.96192 1.679219,-1.00818 0.299986,-0.01746 0.610201,0.07067 0.904998,0.185744 0.698194,0.272526 1.319419,0.786403 1.865917,1.401201 0.310896,0.349751 0.572889,0.760957 0.859219,1.141364 0.247886,0.429633 0.519783,0.841026 0.743456,1.288956 0.208031,0.416619 0.380194,0.857047 0.54795,1.297426 0.421489,1.106561 0.750209,2.282038 0.853123,3.472489 l 0.795167,-1.202681 C 38.560014,60.722067 38.007072,59.237524 37.304616,57.857572 37.074102,57.404738 36.815239,56.972971 36.570499,56.530743 36.288243,56.134335 36.029034,55.711472 35.723666,55.34179 35.194441,54.701105 34.57884,54.118394 33.886686,53.795952 33.592797,53.659047 33.28121,53.546508 32.976229,53.54903 c -0.430119,0.0037 -0.715939,0.120634 -0.974863,0.308219 z" />
      <path
         id="path175-3"
         style="display:inline;fill:#ecb41a;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.276002;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:0;paint-order:stroke fill markers"
         d="m 60.009276,61.920503 c 0.01058,0.319558 -0.05067,0.661348 -0.07767,1.091961 -0.54614,1.664954 -0.604269,2.06763 -1.676186,3.916561 -0.372383,0.642321 -0.844197,1.249916 -1.307397,1.856263 -1.119689,1.465726 -2.458387,2.981084 -3.755914,4.336359 -0.786465,0.821465 -1.613838,1.613984 -2.420738,2.421151 -0.9987,0.875864 -1.973894,1.773432 -2.9963,2.627857 -2.220582,1.85573 -4.596817,3.663556 -6.974993,5.351535 -2.197971,1.560036 -4.847638,3.329698 -7.198197,4.697039 -1.156467,0.672721 -2.3552,1.274757 -3.532692,1.912063 -2.843851,1.414703 -5.746478,2.760222 -8.759134,3.72328 -0.718902,0.22981 -1.446209,0.421816 -2.173999,0.599357 -1.570321,0.38307 -1.75464,0.364432 -3.221788,0.540244 -0.507564,-0.01081 -1.348589,0.07016 -1.751387,-0.258843 -0.377788,-0.308555 -0.338805,-0.920586 -0.176276,-1.364869 0.757758,-2.070954 0.727003,-1.913376 1.682861,-3.307248 0.415528,-0.472086 1.115373,-1.284486 1.568238,-1.725255 0.236964,-0.230636 0.502816,-0.43787 0.754152,-0.656775 l -0.01937,0.06523 c -0.303853,0.399426 -0.607247,0.798563 -0.91122,1.197917 -1.220474,1.60345 -0.621977,0.769772 -1.757641,2.448668 -0.142037,0.236858 -0.250926,0.488952 -0.393033,0.725772 -0.0584,0.137387 -0.152092,0.291048 -0.148961,0.415056 0.02227,0.883475 0.922493,0.935397 1.720303,1.054842 0.44827,-0.0059 0.892059,0.01602 1.344565,-0.01787 1.242709,-0.09307 2.596387,-0.343115 3.829493,-0.65121 1.767988,-0.441758 3.595986,-1.039398 5.301892,-1.728169 1.093051,-0.441326 2.1594,-0.953589 3.239098,-1.430377 1.166831,-0.608719 2.353023,-1.182544 3.500393,-1.825935 2.367917,-1.327811 4.939216,-2.978518 7.140395,-4.529424 2.354876,-1.659196 4.834457,-3.580627 7.000477,-5.437679 1.038041,-0.890022 2.019582,-1.828645 3.029418,-2.743134 0.810275,-0.821014 1.646678,-1.624444 2.430943,-2.463187 1.274999,-1.363564 2.745064,-3.099596 3.819894,-4.588603 0.483781,-0.670206 0.913238,-1.363229 1.34997,-2.052415 0.163296,-0.257679 0.336321,-0.51568 0.449249,-0.786618 0.182593,-0.438088 0.28868,-0.886545 0.432846,-1.329741 0.0506,-0.797861 0.217005,-1.289145 -0.233303,-1.944678 -0.170159,-0.247674 -0.429999,-0.438681 -0.701668,-0.600987 -0.643407,-0.384413 -1.430268,-0.560027 -2.251027,-0.614728 -0.466919,-0.03112 -0.952396,0.01408 -1.428468,0.02116 -0.491382,0.06764 -0.983081,0.105123 -1.474069,0.203107 -0.456664,0.09114 -0.910141,0.225214 -1.360877,0.362738 -1.132561,0.345596 -2.262675,0.80673 -3.266153,1.455418 l 0.462438,-1.365607 c 1.467466,-0.571463 2.979212,-1.044997 4.500021,-1.336291 0.499057,-0.09559 0.998857,-0.155862 1.49826,-0.233708 0.486213,-0.02012 0.979191,-0.07466 1.458465,-0.06013 0.830616,0.02518 1.668402,0.154148 2.347536,0.503179 0.288358,0.148201 0.568319,0.325324 0.753341,0.567785 0.260826,0.342031 0.343721,0.639513 0.354313,0.959072 z" />
    </g>
    <path
       id="path173"
       style="display:inline;fill:#ecc73b;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.338;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:0.84;paint-order:stroke fill markers"
       d="M 6.4723148,7.5892923 C 6.7534122,7.4434529 7.0822553,7.3723636 7.4770761,7.224129 c 1.697985,-0.056717 2.079947,-0.1569007 4.1461889,0.324266 0.717816,0.1671598 1.443223,0.4650624 2.164179,0.7534185 1.742755,0.6970373 3.614807,1.6293987 5.327999,2.5804805 1.038411,0.576478 2.066862,1.212863 3.100442,1.819198 1.16933,0.801894 2.348909,1.56724 3.508303,2.405801 2.518104,1.821286 5.053862,3.844547 7.483385,5.920169 2.245407,1.91833 4.853213,4.277218 6.985854,6.454407 1.049246,1.071162 2.051803,2.221277 3.077601,3.331814 2.366352,2.734145 4.69376,5.565882 6.722515,8.68598 0.48413,0.744548 0.937752,1.514709 1.37867,2.29146 0.951324,1.675971 1.006241,1.899255 1.732519,3.541178 0.187323,0.597919 0.585973,1.547389 0.448674,2.155712 -0.128776,0.570544 -0.69017,0.780522 -1.149789,0.776017 C 50.261133,48.24287 50.413708,48.21302 48.798676,47.677536 48.216042,47.388845 47.219353,46.909861 46.650183,46.564439 46.352386,46.383717 46.064259,46.159435 45.771334,45.957 l 0.06581,-0.0046 c 0.474417,0.188444 0.948414,0.376497 1.422811,0.565121 1.904792,0.757358 0.928431,0.405746 2.86764,1.032436 0.266535,0.06718 0.5338,0.08921 0.80034,0.156474 0.145287,0.01099 0.318778,0.05628 0.428249,8.32e-4 0.779886,-0.394957 0.47686,-1.469125 0.273811,-2.451778 -0.179223,-0.521626 -0.331914,-1.04964 -0.537765,-1.564529 -0.565357,-1.414006 -1.313863,-2.89222 -2.067422,-4.20526 C 47.944387,37.603129 46.701526,35.71548 45.424716,34.008625 44.606605,32.914966 43.735548,31.882152 42.890972,30.818919 41.894839,29.708931 40.922323,28.56171 39.902787,27.488924 37.798693,25.274939 35.327472,22.957999 33.088969,21.032108 30.694163,18.971739 28.016908,16.875076 25.518755,15.118234 24.321515,14.276269 23.102835,13.520635 21.894709,12.72185 20.847459,12.117356 19.805768,11.474963 18.752792,10.908277 17.04094,9.9869966 14.920944,8.9931907 13.17482,8.358322 12.388884,8.0725646 11.603664,7.8598557 10.819048,7.6370367 10.525682,7.5537377 10.228261,7.4591603 9.9426121,7.4402711 9.4807411,7.40973 9.0393041,7.4729575 8.5877861,7.4894763 7.8560251,7.7634778 7.3529581,7.7740793 6.9426329,8.5742834 6.7875965,8.8766355 6.7179792,9.260199 6.6784977,9.6455802 c -0.0934,0.9127558 0.055234,1.9060448 0.3249413,2.8884758 0.1534301,0.558896 0.3821871,1.107616 0.5732671,1.661256 0.251071,0.546254 0.475352,1.105469 0.75335,1.638595 0.258573,0.495851 0.554226,0.970047 0.8519,1.439599 0.748,1.179823 1.5981669,2.308533 2.5665869,3.210875 l -1.398321,0.02958 C 9.2706181,19.036937 8.2612701,17.467218 7.4110661,15.8108 7.1320575,15.26725 6.8842985,14.708075 6.6210075,14.156703 6.4143548,13.596648 6.1743522,13.043058 6.0013187,12.476653 5.7014477,11.495018 5.4914111,10.461673 5.5393623,9.5219204 5.5597232,9.1229023 5.6091666,8.7216258 5.7537675,8.4040629 5.9576941,7.9562001 6.1911602,7.7351624 6.4722685,7.5893371 Z" />
  </g>
 </svg>
--- a/data/hicolor/apps/scalable/gemgraph_désaturé.png
+++ b/data/hicolor/apps/scalable/gemgraph_désaturé.png
--- a/data/hicolor/apps/scalable/gemgraph_désaturé.svg
+++ b/data/hicolor/apps/scalable/gemgraph_désaturé.svg
@ -0,0 +1,394 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!-- Created with Inkscape (http://www.inkscape.org/) -->
 <svg
   width="50mm"
   height="50mm"
   viewBox="0 0 50 50.000001"
   version="1.1"
   id="svg5"
   inkscape:version="1.2.1 (9c6d41e410, 2022-07-14)"
   sodipodi:docname="gemgraph_desaturé.svg"
   inkscape:export-filename="gemgraph_désaturé.png"
   inkscape:export-xdpi="400"
   inkscape:export-ydpi="400"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns="http://www.w3.org/2000/svg"
   xmlns:svg="http://www.w3.org/2000/svg">
  <sodipodi:namedview
     id="namedview7"
     pagecolor="#ffffff"
     bordercolor="#999999"
     borderopacity="1"
     inkscape:pageshadow="0"
     inkscape:pageopacity="0"
     inkscape:pagecheckerboard="0"
     inkscape:document-units="mm"
     showgrid="false"
     inkscape:zoom="3.0541689"
     inkscape:cx="92.496522"
     inkscape:cy="105.42966"
     inkscape:window-width="1920"
     inkscape:window-height="1011"
     inkscape:window-x="0"
     inkscape:window-y="32"
     inkscape:window-maximized="1"
     inkscape:current-layer="layer10"
     inkscape:snap-grids="false"
     showguides="false"
     inkscape:lockguides="false"
     inkscape:showpageshadow="0"
     inkscape:deskcolor="#d1d1d1">
    <inkscape:grid
       type="xygrid"
       id="grid679"
       originx="-13.661108"
       originy="-56.524582" />
  </sodipodi:namedview>
  <defs
     id="defs2">
    <marker
       style="overflow:visible"
       id="marker58350"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow1Mend"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.4,0,0,-0.4,-4,0)"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
         d="M 0,0 5,-5 -12.5,0 5,5 Z"
         id="path58348" />
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow2Send"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow2Send"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.3,0,0,-0.3,0.69,0)"
         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.625;stroke-linejoin:round"
         id="path58039" />
    </marker>
    <marker
       style="overflow:visible"
       id="Tail"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Tail"
       inkscape:isstock="true">
      <g
         transform="scale(-1.2)"
         id="g58054">
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M -3.8048674,-3.9585227 0.54352094,0"
           id="path58042" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M -1.2866832,-3.9585227 3.0617053,0"
           id="path58044" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M 1.3053582,-3.9585227 5.6537466,0"
           id="path58046" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M -3.8048674,4.1775838 0.54352094,0.21974226"
           id="path58048" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M -1.2866832,4.1775838 3.0617053,0.21974226"
           id="path58050" />
        <path
           style="fill:none;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.8;stroke-linecap:round"
           d="M 1.3053582,4.1775838 5.6537466,0.21974226"
           id="path58052" />
      </g>
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow2Mend"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow2Mend"
       inkscape:isstock="true">
      <path
         transform="scale(-0.6)"
         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.625;stroke-linejoin:round"
         id="path58033" />
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow2Lend"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow2Lend"
       inkscape:isstock="true">
      <path
         transform="matrix(-1.1,0,0,-1.1,-1.1,0)"
         d="M 8.7185878,4.0337352 -2.2072895,0.01601326 8.7185884,-4.0017078 c -1.7454984,2.3720609 -1.7354408,5.6174519 -6e-7,8.035443 z"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:0.625;stroke-linejoin:round"
         id="path58027" />
    </marker>
    <marker
       style="overflow:visible"
       id="marker58284"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow1Lend"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.8,0,0,-0.8,-10,0)"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
         d="M 0,0 5,-5 -12.5,0 5,5 Z"
         id="path58282" />
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow1Mend"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow1Mend"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.4,0,0,-0.4,-4,0)"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
         d="M 0,0 5,-5 -12.5,0 5,5 Z"
         id="path58015" />
    </marker>
    <marker
       style="overflow:visible"
       id="Arrow1Lend"
       refX="0"
       refY="0"
       orient="auto"
       inkscape:stockid="Arrow1Lend"
       inkscape:isstock="true">
      <path
         transform="matrix(-0.8,0,0,-0.8,-10,0)"
         style="fill:context-stroke;fill-rule:evenodd;stroke:context-stroke;stroke-width:1pt"
         d="M 0,0 5,-5 -12.5,0 5,5 Z"
         id="path58009" />
    </marker>
    <linearGradient
       id="linearGradient7798"
       inkscape:swatch="solid">
      <stop
         style="stop-color:#000000;stop-opacity:1;"
         offset="0"
         id="stop7796" />
    </linearGradient>
    <clipPath
       clipPathUnits="userSpaceOnUse"
       id="clipPath66549">
      <path
         id="path66551"
         style="fill:#ff0000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:0.264583"
         d="m 12.135176,56.807902 v 0.259416 c 0.01208,-0.02305 0.02657,-0.04746 0.04496,-0.07545 0.02382,-0.03625 0.05508,-0.0677 0.08785,-0.09612 0.04746,-0.04115 0.07941,-0.06765 0.106453,-0.08785 z m 0.507463,0 c -0.168135,0.07167 -0.157367,0.05207 -0.302307,0.181901 -0.02701,0.02418 -0.0531,0.05092 -0.07235,0.08165 -0.05643,0.0901 -0.06755,0.146106 -0.09818,0.240298 -0.001,0.0031 -0.0021,0.0062 -0.0031,0.0093 h 0.351916 c 0.02605,-0.04031 0.05222,-0.08064 0.07906,-0.120404 0.06558,-0.09715 0.163785,-0.031 0.09818,0.06614 -0.0121,0.01791 -0.02376,0.03618 -0.03566,0.05426 h 0.30334 V 56.8079 Z" />
    </clipPath>
    <filter
       style="color-interpolation-filters:sRGB;"
       inkscape:label="Brilliance"
       id="filter13546"
       x="0"
       y="0"
       width="1"
       height="1">
      <feColorMatrix
         type="hueRotate"
         values="0"
         result="color1"
         id="feColorMatrix13542" />
      <feColorMatrix
         type="saturate"
         values="0.458052"
         result="fbSourceGraphic"
         id="feColorMatrix13544" />
      <feColorMatrix
         result="fbSourceGraphicAlpha"
         in="fbSourceGraphic"
         values="0 0 0 -1 0 0 0 0 -1 0 0 0 0 -1 0 0 0 0 1 0"
         id="feColorMatrix13888" />
      <feColorMatrix
         id="feColorMatrix13890"
         values="1 -2.77556e-17 -2.77556e-17 0 0.18 -2.77556e-17 1 -2.77556e-17 0 0.18 -2.77556e-17 -2.77556e-17 1 0 0.18 0 0 0 1 0 "
         in="fbSourceGraphic" />
    </filter>
  </defs>
  <g
     inkscape:groupmode="layer"
     id="layer8"
     inkscape:label="bg"
     transform="translate(-9.5102355,-2.9755927)" />
  <g
     inkscape:label="cellules"
     inkscape:groupmode="layer"
     id="layer1"
     style="display:inline"
     transform="translate(-13.661107,-56.524581)" />
  <g
     inkscape:groupmode="layer"
     id="layer4"
     inkscape:label="flechouille"
     style="display:inline"
     transform="translate(-9.5102355,-2.9755927)" />
  <g
     inkscape:groupmode="layer"
     id="layer9"
     inkscape:label="flesh1"
     style="display:inline"
     transform="translate(-9.5102355,-2.9755927)" />
  <g
     inkscape:groupmode="layer"
     id="layer10"
     inkscape:label="flesh2"
     style="display:inline"
     transform="translate(-9.5102355,-2.9755927)">
    <g
       id="g1446"
       transform="matrix(0.84217281,0,0,0.84217281,7.5579735,3.4031577)"
       style="filter:url(#filter13546)">
      <path
         id="path2376-7"
         style="display:inline;fill:#dab82f;fill-opacity:1;fill-rule:evenodd;stroke:#dab82f;stroke-width:0.287;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:stroke fill markers"
         d="m 15.159701,73.562323 5.757321,9.910713 11.461618,-0.03061 5.7043,-9.941324 -5.757322,-9.910714 -11.461618,0.03061 z"
         transform="translate(-4.1508714,-53.548988)" />
      <path
         id="path2376-5"
         style="display:inline;fill:#267cc9;fill-opacity:1;fill-rule:evenodd;stroke:#267cc9;stroke-width:0.286544;stroke-opacity:1;paint-order:stroke fill markers"
         d="m 33.391148,83.983564 5.757406,9.911184 11.461794,-0.03061 5.703866,-9.941795 -5.756889,-9.91067 -11.461794,0.03061 z"
         transform="translate(-4.1508714,-53.548988)" />
      <path
         sodipodi:type="star"
         style="display:inline;fill:#ab231d;fill-opacity:1;fill-rule:evenodd;stroke:#ab231d;stroke-width:1.0016;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:stroke fill markers"
         id="path2376"
         inkscape:flatsided="true"
         sodipodi:sides="6"
         sodipodi:cx="115"
         sodipodi:cy="270"
         sodipodi:r1="40.000004"
         sodipodi:r2="24.287724"
         sodipodi:arg1="1.5707963"
         sodipodi:arg2="2.0943951"
         inkscape:rounded="0"
         inkscape:randomized="0"
         transform="matrix(-7.6531787e-4,-0.28654272,0.28654047,-7.6530994e-4,-54.816109,74.056392)"
         d="M 115,310 80.358981,290 80.35898,250 115,230 l 34.64102,20 0,40 z" />
      <path
         style="display:inline;fill:#dab82f;fill-opacity:1;stroke-width:1.7821;stroke-linecap:round;stroke-linejoin:round;paint-order:markers fill stroke"
         id="path9871-0"
         d="m 51.290209,24.661378 c 0.06813,-0.04434 0.139313,-0.08468 0.204411,-0.133017 0.707337,-0.526066 1.498335,-1.309612 2.004042,-1.97973 0.190982,-0.253076 0.347139,-0.522019 0.520708,-0.78303 0.262052,-0.519889 0.73164,-1.405151 0.304733,-1.863066 -0.126982,-0.136211 -0.31387,-0.243171 -0.524876,-0.260859 -0.881172,-0.07387 -2.050603,0.390377 -2.875777,0.638065 -2.450135,0.963662 -3.02362,1.142939 -5.737462,2.489326 -1.376626,0.682974 -4.725927,2.618726 -5.961425,3.338002 -2.57716,1.500361 -4.032983,2.387408 -6.588687,3.923362 -1.06058,0.649361 -2.126691,1.289981 -3.181743,1.948085 -1.726092,1.076694 -4.368744,2.780718 -6.076145,3.907225 -1.640185,1.082159 -3.570122,2.385172 -5.184891,3.523455 -0.725214,0.511217 -1.43886,1.037148 -2.15829,1.55572 -1.569214,1.184763 -3.17984,2.337107 -4.649971,3.630536 -0.442991,0.389746 -1.13435,1.046979 -1.5078105,1.529963 -0.1256906,0.162547 -0.2101781,0.343099 -0.3152668,0.514649 -0.014617,0.126926 -0.071886,0.263059 -0.04395,0.380762 0.065172,0.274572 0.3432357,0.351886 0.6241883,0.387038 0.765085,0.09573 1.588825,-0.237386 2.351599,-0.483667 0,0 1.098777,-0.634118 1.098777,-0.634118 v 0 c -0.460546,-0.06551 -0.235661,-0.05087 -0.78717,-0.04303 -0.258754,0.0037 -0.861893,0.0742 -1.002051,-0.174211 -0.04078,-0.07231 -0.02257,-0.169313 -0.03384,-0.25397 0.05833,-0.140035 0.0957,-0.285357 0.174963,-0.420098 0.286693,-0.48741 0.727263,-0.96086 1.139644,-1.368373 1.255548,-1.240725 2.682963,-2.332271 4.083015,-3.431188 1.867358,-1.398946 2.316281,-1.756661 4.28181,-3.136316 3.809841,-2.674227 7.747857,-5.170674 11.725022,-7.600607 3.297314,-1.983176 6.593331,-3.978976 9.980197,-5.805686 0.47592,-0.256683 3.340325,-1.776424 4.44246,-2.231104 0.634904,-0.261931 1.282421,-0.481284 1.923634,-0.721924 0.667965,-0.184859 1.824649,-0.567396 2.555436,-0.574512 0.703097,-0.0069 0.903359,0.49255 0.750227,1.070925 -0.06335,0.239271 -0.201987,0.470062 -0.30298,0.705094 -0.176227,0.255075 -0.332792,0.519792 -0.528675,0.765222 -0.678963,0.850686 -1.556495,1.575428 -2.508582,2.164606 0,0 1.804748,-0.573529 1.804749,-0.57353 z" />
      <path
         style="display:inline;fill:#267cc9;fill-opacity:1;stroke-width:1.7821;stroke-linecap:round;stroke-linejoin:round;paint-order:markers fill stroke"
         id="path9871"
         d="m 24.514377,8.0196868 c -0.0036,-0.081211 -0.0022,-0.1630167 -0.01083,-0.243639 C 24.409395,6.8995742 24.135879,5.8203088 23.815259,5.0444224 23.694173,4.7514037 23.541736,4.4803339 23.404975,4.1982902 23.090092,3.7085914 22.565777,2.8546038 21.954532,2.9899458 c -0.181817,0.040256 -0.368845,0.1469716 -0.491202,0.3197861 -0.510979,0.7216783 -0.704672,1.964892 -0.910181,2.8015689 -0.413577,2.6001459 -0.550253,3.185249 -0.767964,6.2068872 -0.110433,1.532761 -0.142966,5.401081 -0.150478,6.83068 -0.01566,2.982045 0.0095,4.686638 0.03541,7.668267 0.02105,1.243406 0.03176,2.487138 0.06315,3.730218 0.05137,2.033723 0.177927,5.175584 0.281704,7.218491 0.09969,1.962482 0.242567,4.28672 0.403514,6.255797 0.07228,0.884338 0.163116,1.766179 0.244673,2.649267 0.224119,1.953425 0.399286,3.92607 0.767327,5.849295 0.110902,0.57952 0.326172,1.508815 0.552701,2.075764 0.07624,0.190806 0.188902,0.355258 0.283353,0.532886 0.101912,0.07706 0.190146,0.19548 0.305737,0.231163 0.269645,0.08324 0.477417,-0.11708 0.65033,-0.341292 0.470873,-0.610573 0.602057,-1.489378 0.777101,-2.271579 0,0 0.01147,-1.268575 0.01147,-1.268575 v 0 c -0.290245,0.363527 -0.163449,0.177222 -0.436687,0.656349 -0.128197,0.224795 -0.373619,0.780238 -0.658791,0.774886 -0.083,-0.0016 -0.157329,-0.06651 -0.235993,-0.09977 -0.09104,-0.121334 -0.197268,-0.227315 -0.273122,-0.364002 -0.27439,-0.494442 -0.458636,-1.114368 -0.600384,-1.676536 -0.43157,-1.711593 -0.647363,-3.495526 -0.883397,-5.259626 -0.257297,-2.319026 -0.33759,-2.887396 -0.528428,-5.281207 -0.369909,-4.639995 -0.521582,-9.300167 -0.596074,-13.960303 -0.03472,-3.847605 -0.08097,-7.700501 0.06458,-11.545828 0.02046,-0.540341 0.165246,-3.779702 0.33302,-4.9600775 0.09665,-0.6799791 0.236378,-1.3492097 0.354567,-2.0238137 0.179832,-0.6693367 0.437452,-1.860086 0.802311,-2.4933138 0.351034,-0.6092367 0.882958,-0.5282521 1.303523,-0.1027019 0.173984,0.17605 0.302446,0.4126537 0.453671,0.6189815 0.130299,0.28132 0.278888,0.5505961 0.390898,0.843955 0.388235,1.0168237 0.567157,2.1407899 0.591434,3.2601689 0,0 0.422065,-1.8460517 0.422065,-1.8460527 z" />
      <path
         id="path9871-7"
         style="fill:#ab231d;fill-opacity:1;stroke-width:1.67983;stroke-linecap:round;stroke-linejoin:round;paint-order:markers fill stroke"
         d="m 9.6198192,12.493488 c 0.0021,0.0955 0.01985,0.196647 0.04313,0.296052 0.169013,0.721871 0.7272528,1.351126 1.1903648,1.954689 l 0.907948,0.774254 c -0.09495,-0.437207 -0.03367,-0.229673 -0.221731,-0.723924 -0.08825,-0.231887 -0.347154,-0.751369 -0.179067,-0.962064 0.04894,-0.06131 0.13833,-0.0779 0.20761,-0.11684 0.139903,0.0049 0.277457,-0.01026 0.419684,0.01526 0.51448,0.09269 1.067539,0.328738 1.554457,0.561815 1.482484,0.709638 2.892894,1.624786 4.30063,2.512815 1.820048,1.207114 2.276321,1.489975 4.112009,2.792092 3.558173,2.523941 7.005007,5.223746 10.407573,7.981457 2.793876,2.296977 5.598396,4.588321 8.286818,7.019151 0.377771,0.341584 2.629473,2.406246 3.383831,3.244765 0.434564,0.483043 0.836502,0.991944 1.254784,1.487902 0.378985,0.539021 1.089008,1.450834 1.335407,2.106854 0.237064,0.631165 -0.127672,0.981342 -0.676668,1.039902 -0.227119,0.02422 -0.471269,-0.02225 -0.707106,-0.03338 -0.277854,-0.07211 -0.55767,-0.122855 -0.833676,-0.215907 -0.956645,-0.322674 -1.86982,-0.867162 -2.690805,-1.524784 0,0 1.087633,1.431204 1.087636,1.431204 0.06064,0.04632 0.118569,0.09642 0.181643,0.138651 0.686101,0.458548 1.621751,0.905156 2.365754,1.133087 0.280982,0.08607 0.564393,0.135259 0.846488,0.202951 0.53438,0.05944 1.451736,0.181845 1.706172,-0.358405 0.07569,-0.160694 0.10688,-0.365543 0.05275,-0.561668 C 47.729441,41.87038 46.944316,40.974466 46.459476,40.31515 44.823107,38.435042 44.480179,37.979463 42.427148,35.991805 41.385719,34.983552 38.615865,32.623384 37.589538,31.754615 35.448693,29.942431 34.205092,28.932363 32.040613,27.151606 31.132069,26.41668 30.229432,25.673595 29.315172,24.946624 27.819404,23.757286 25.481303,21.95537 23.948731,20.799802 22.476492,19.68972 20.718672,18.39374 19.2064,17.325633 c -0.679178,-0.479702 -1.367442,-0.943701 -2.051061,-1.415692 -1.537365,-1.011265 -3.060173,-2.071033 -4.658647,-2.956102 -0.481666,-0.266694 -1.275778,-0.666531 -1.814969,-0.838895 -0.181463,-0.05801 -0.36498,-0.07249 -0.54744,-0.108848 -0.114229,0.0299 -0.2505028,0.02423 -0.3428048,0.08938 -0.134559,0.095 -0.17514,0.238823 -0.171655,0.397998 z" />
    </g>
  </g>
  <g
     inkscape:groupmode="layer"
     id="layer2"
     inkscape:label="G"
     style="display:none"
     transform="translate(-13.661107,-56.524581)">
    <path
       style="fill:#280b0b;fill-rule:evenodd;stroke-width:1.17527;paint-order:stroke fill markers"
       id="path5061"
       d="m 47.194037,73.534828 c -0.152935,-0.02949 -0.303017,-0.07937 -0.458813,-0.08853 -0.679709,-0.03995 -1.768198,0.04518 -2.38881,0.11554 -1.223064,0.138665 -2.765059,0.390668 -3.937257,0.684792 -0.839978,0.210771 -1.660405,0.485814 -2.490608,0.728716 -0.884544,0.345283 -1.788596,0.648962 -2.653642,1.035841 -0.909546,0.406787 -1.800807,0.853166 -2.663731,1.342296 -2.412915,1.367704 -4.486744,2.51416 -6.405435,4.408919 -1.866912,1.843619 -1.990901,2.396542 -3.238075,4.575011 -0.561878,1.750705 -1.088708,2.71144 -0.869682,4.565477 0.159213,1.34766 0.874773,2.787172 1.786272,3.822154 1.216923,1.381785 1.925136,1.542456 3.563057,2.363074 0.716128,0.18719 1.414128,0.45402 2.148385,0.56157 1.476245,0.21625 3.235625,0.10133 4.696908,-0.14504 1.121152,-0.18903 2.97206,-0.68308 4.011344,-1.196472 1.272067,-0.62838 2.47331,-1.377211 3.709964,-2.065815 0.35181,-0.337103 0.758836,-0.629743 1.055436,-1.011317 0.72856,-0.937278 0.897486,-2.100108 0.141797,-3.080578 -0.595431,-0.772532 -1.342216,-1.055858 -2.19073,-1.515049 -1.235002,-0.55263 -2.558697,-0.827258 -3.893906,-1.051661 -0.275889,-0.04638 -0.552772,-0.08735 -0.829558,-0.128686 -0.131541,-0.01964 -0.282401,-0.120898 -0.39539,-0.05429 -0.895481,0.527899 -1.693943,1.190186 -2.540911,1.785276 0.284581,-2.67e-4 0.56979,0.01702 0.853743,-8.46e-4 0.506251,-0.03178 1.009926,-0.09368 1.514041,-0.147908 1.126082,-0.121137 2.736584,-0.297869 3.82806,-0.538812 0.754661,-0.166597 1.489563,-0.404875 2.234347,-0.60731 0,0 0.920256,-0.654146 0.920256,-0.654146 v 0 c -0.434883,-0.01503 -0.869794,-0.06071 -1.304655,-0.04507 -0.581879,0.02095 -1.159157,0.106441 -1.739228,0.154544 -1.18152,0.09798 -2.372701,0.217893 -3.559116,0.102923 -0.916483,0.5683 -1.884337,1.068757 -2.74944,1.704899 -0.141003,0.10369 0.351958,-0.06499 0.53043,-0.07318 1.681682,-0.07713 3.345531,0.304805 4.880908,0.931638 0.799,0.46379 1.416078,0.69572 1.942346,1.458546 0.592972,0.859518 0.458921,1.949721 -0.173001,2.750154 -0.276772,0.350576 -0.658067,0.615269 -0.987097,0.922899 0.245124,-0.103658 0.98509,-0.404324 0.73537,-0.310969 -0.632522,0.236462 -1.240205,0.533554 -1.884228,0.74046 -2.149245,0.690501 -4.511087,1.07065 -6.77952,0.758774 -0.721485,-0.0992 -1.411354,-0.346295 -2.11703,-0.519443 -1.640635,-0.805623 -2.245832,-0.913379 -3.477641,-2.270221 -0.96095,-1.05849 -1.587822,-2.272955 -1.78689,-3.664295 -0.259956,-1.816874 0.168031,-2.613401 0.657162,-4.361084 0.425327,-0.759815 0.774863,-1.562071 1.275982,-2.279451 1.429152,-2.045916 2.143593,-2.436091 4.081957,-4.040224 0.316886,-0.262247 0.59847,-0.570258 0.955512,-0.781482 2.025704,-1.198385 3.09556,-1.525226 5.269798,-2.384256 0.818076,-0.241442 1.624513,-0.521413 2.454228,-0.724331 2.130308,-0.520981 4.327258,-0.63021 6.515425,-0.60327 0,0 1.751669,-1.169825 1.751669,-1.169825 z" />
  </g>
  <g
     inkscape:groupmode="layer"
     id="layer3"
     inkscape:label="MA flèche."
     style="display:none"
     transform="translate(-13.661107,-56.524581)">
    <path
       style="fill:#280b0b;fill-rule:evenodd;stroke-width:0.714375;paint-order:stroke fill markers"
       id="path5381"
       d="m 43.971768,67.441733 c 0.05775,-0.05692 0.128513,-0.10313 0.173233,-0.170768 0.162618,-0.245951 0.183602,-0.539006 0.142486,-0.828781 -0.09153,-0.64507 -0.379521,-1.25381 -0.74368,-1.786699 -0.278135,-0.407003 -0.621742,-0.765165 -0.932614,-1.147747 -0.450882,-0.405614 -0.862005,-0.860351 -1.352645,-1.216845 -1.287082,-0.935183 -2.942582,-1.738318 -4.427165,-2.263733 -0.917008,-0.324543 -1.849646,-0.624866 -2.806599,-0.799441 -1.090528,-0.198943 -2.202138,-0.296621 -3.310485,-0.316486 -1.191779,-0.02135 -2.380459,0.128775 -3.570687,0.193161 -2.978677,0.600305 -4.348873,0.689899 -7.132609,2.001306 -2.3177,1.091861 -4.55482,2.649093 -6.378025,4.451165 -2.382225,2.354611 -2.702801,3.298848 -4.3978662,6.138915 -0.4674116,1.161381 -1.0514803,2.282373 -1.4022345,3.484142 -1.0595501,3.630274 -1.0911387,7.625418 -0.1579766,11.283489 0.7927453,3.107624 1.3487625,3.662474 2.9042413,6.375218 0.712228,0.809061 1.317105,1.727083 2.136684,2.427181 2.53145,2.162405 5.947581,3.105748 9.228512,3.024735 1.241056,-0.03064 2.463828,-0.306895 3.695742,-0.460343 0,0 0.09928,-0.07358 0.09928,-0.07358 v 0 c -2.671283,0.166076 -3.99527,0.424982 -6.652684,-0.114218 -2.190671,-0.444487 -4.12383,-1.265971 -5.870705,-2.680129 C 12.373736,94.280457 11.718647,93.395442 10.969984,92.612026 9.2992188,89.965113 8.7163994,89.46231 7.8613245,86.364388 6.8532454,82.712133 6.8825493,78.773096 7.9329999,75.133609 8.2780046,73.938275 8.8494477,72.82027 9.3076717,71.663601 c 1.6956393,-2.839193 2.0162173,-3.782898 4.3989143,-6.136438 1.768459,-1.746817 3.932715,-3.27863 6.188337,-4.330804 2.846376,-1.32774 4.023184,-1.364813 7.059864,-1.953508 1.151167,-0.03817 2.302893,-0.166849 3.453505,-0.11452 1.059299,0.04818 2.118246,0.187725 3.153987,0.415039 0.920022,0.201917 1.816873,0.512402 2.689336,0.867391 1.484852,0.604155 2.847912,1.409907 4.055237,2.464565 0.44142,0.385604 0.798965,0.8578 1.198449,1.286703 0.260638,0.401082 0.559003,0.780034 0.781915,1.203248 0.34776,0.66026 0.651515,1.57521 0.414351,2.331429 -0.03269,0.104254 -0.148834,0.23331 -0.227269,0.325612 0,0 1.49747,-0.580585 1.49747,-0.580585 z" />
  </g>
  <g
     inkscape:groupmode="layer"
     id="layer5"
     inkscape:label="flèches test 2"
     style="display:none"
     transform="translate(-13.661107,-56.524581)">
    <path
       id="path5852"
       style="fill:#00aad4;fill-rule:evenodd;stroke-width:0.7248;paint-order:stroke fill markers"
       d="m 50.580764,54.861594 c -0.383603,-0.005 -0.77888,0.07138 -1.287258,0.111107 -1.874245,0.651097 -2.342838,0.725278 -4.327901,1.972487 -0.689613,0.433284 -1.31721,0.977789 -1.9451,1.51257 -1.517796,1.292717 -3.049527,2.833153 -4.398698,4.323768 -0.817769,0.903499 -1.592527,1.852438 -2.389002,2.778641 -0.83879,1.143696 -1.708346,2.261386 -2.516643,3.431315 -1.755545,2.540987 -3.421721,5.256226 -4.944401,7.971089 -1.407287,2.509125 -2.971334,5.531485 -4.117061,8.208285 -0.56369,1.316968 -1.03426,2.680022 -1.551327,4.019909 -1.100202,3.23337 -2.105667,6.531425 -2.63188,9.94513 -0.125572,0.814615 -0.20428,1.637865 -0.265617,2.461345 -0.132345,1.77678 -0.07198,1.98397 0.0217,3.64009 0.117922,0.57137 0.195279,1.52028 0.671277,1.96681 0.446437,0.4188 1.168872,0.36164 1.665531,0.16898 2.315055,-0.89821 2.133343,-0.86017 3.599263,-1.96681 0.477516,-0.4782 1.302372,-1.28394 1.734779,-1.80351 0.226247,-0.27184 0.418581,-0.57572 0.627869,-0.86351 l -0.0739,0.0233 c -0.413872,0.35083 -0.827506,0.70116 -1.241268,1.05213 -1.661328,1.4092 -0.790098,0.71713 -2.559017,2.03244 -0.253318,0.16511 -0.531689,0.29319 -0.784965,0.45837 -0.151864,0.0688 -0.315908,0.17757 -0.464571,0.17673 -1.059091,-0.006 -1.307301,-1.01867 -1.614889,-1.91461 -0.08572,-0.50496 -0.203668,-1.0043 -0.256832,-1.51464 -0.14601,-1.40156 -0.127626,-2.93146 -0.01499,-4.326867 0.161498,-2.000666 0.496653,-4.072306 0.965833,-6.008418 0.300623,-1.240554 0.691436,-2.452568 1.037146,-3.678846 0.48515,-1.327261 0.924648,-2.675572 1.455208,-3.98167 1.094955,-2.695487 2.533233,-5.627015 3.928958,-8.139554 1.493179,-2.687981 3.273555,-5.522076 5.042069,-8.001579 0.847561,-1.188299 1.764798,-2.314033 2.647384,-3.471106 0.812311,-0.930299 1.598216,-1.889649 2.437061,-2.791042 1.363729,-1.465421 3.131672,-3.158582 4.686536,-4.401283 0.699849,-0.559345 1.438171,-1.057997 2.170411,-1.564761 0.273775,-0.189476 0.545915,-0.389927 0.845942,-0.522965 0.485113,-0.215112 0.998426,-0.3443 1.497584,-0.51625 0.941832,-0.07425 1.493787,-0.27229 2.369365,0.22066 0.330827,0.186259 0.61255,0.474774 0.862478,0.777214 0.591928,0.716287 0.964321,1.598652 1.199412,2.521809 0.133739,0.525175 0.180231,1.072899 0.270266,1.609204 0.02093,0.554861 0.07791,1.109422 0.06253,1.664497 -0.01431,0.51627 -0.08052,1.029877 -0.151413,1.540475 -0.178186,1.282975 -0.494784,2.565691 -1.061434,3.70985 l 1.534274,-0.550352 c 0.378547,-1.66502 0.630994,-3.377803 0.664043,-5.096848 0.01085,-0.564105 -0.02061,-1.128287 -0.03101,-1.692402 -0.07658,-0.548011 -0.113464,-1.104384 -0.22996,-1.643828 -0.201898,-0.934899 -0.529145,-1.875623 -1.086238,-2.632913 -0.236541,-0.321543 -0.505868,-0.633 -0.833541,-0.836126 -0.462113,-0.286472 -0.834409,-0.373258 -1.218015,-0.378272 z" />
    <path
       id="path5902"
       style="fill:#ff7f2a;fill-rule:evenodd;stroke-width:0.630357;paint-order:stroke fill markers"
       d="m 13.900892,75.502767 c -0.05938,-0.0011 -0.118877,-7.94e-4 -0.177767,0.0047 -0.546328,0.04895 -1.249165,0.180549 -1.757516,0.290939 -0.845372,0.18357 -1.788657,0.431675 -2.6019081,0.679029 -0.4679362,0.142327 -0.9264012,0.302768 -1.3895792,0.454234 -1.2701296,0.491239 -2.0021941,0.723643 -3.1998046,1.490866 -0.3019258,0.193421 -0.560388,0.439545 -0.7358724,0.711584 -0.1580843,0.245068 -0.3012541,0.530953 -0.2397786,0.800986 0.2152168,0.945341 1.3861531,1.46838 2.2065834,2.019515 0.7993292,0.371985 1.5672252,0.787799 2.3977864,1.115695 2.2003001,0.868648 4.8312781,1.604237 7.1747561,2.142503 1.519507,0.349012 3.054567,0.659889 4.601786,0.92501 3.380123,0.579186 7.532289,1.051276 10.940416,1.472776 4.454605,0.423484 6.247098,0.645314 10.670151,0.870749 1.566847,0.07986 3.137151,0.120047 4.706689,0.155546 1.51878,0.03435 5.183235,0.06461 6.89002,0.0078 0.694232,-0.02312 1.384985,-0.09093 2.077392,-0.136424 1.447961,-0.287345 2.13329,-0.294275 3.30264,-1.414383 0.18696,-0.179086 0.01169,-0.477136 -0.113689,-0.686263 -0.244393,-0.407673 -1.289336,-1.133631 -1.753381,-1.307415 -0.147785,-0.05535 -0.301603,-0.09826 -0.457853,-0.136424 0.117697,0.07253 0.209759,0.182218 0.31161,0.276468 0.41097,0.380302 0.460653,0.423897 0.774113,0.809768 0.354991,0.436996 0.263464,0.289899 0.429432,0.594281 0.02671,0.07295 0.131913,0.262882 0.09508,0.378788 -0.0263,0.08272 -0.06853,0.15966 -0.109553,0.236161 -0.0052,0.0098 -0.01839,0.01262 -0.02739,0.01913 -0.0021,0.0013 -0.0039,0.0034 -0.0062,0.0057 -0.01868,0.06898 -0.04505,0.136785 -0.08526,0.194821 -0.03005,0.04335 -0.132156,0.06317 -0.248047,0.0739 -0.0057,0.01267 -0.0074,0.02077 -0.01447,0.03514 -0.0073,0.01474 -0.0191,0.02668 -0.03256,0.03772 0.30294,-0.07243 0.582663,-0.185004 0.419097,-0.107487 -0.222115,0.10527 -0.466,0.175705 -0.714168,0.239263 -0.0016,0.0063 -0.0024,0.01283 -0.0041,0.01913 -0.0053,0.01998 -0.03155,0.0088 -0.05685,-0.0026 -0.03115,0.0078 -0.06122,0.01725 -0.0925,0.02479 -0.03724,0.0098 -0.07731,0.01995 -0.125574,0.03152 -0.19191,0.04552 -0.385082,0.0889 -0.571539,0.143145 -0.810416,0.116102 -1.614191,0.26588 -2.431378,0.348298 -2.489295,0.251063 -4.874469,0.309967 -7.390762,0.279053 -5.148701,-0.0634 -10.277188,-0.49431 -15.375823,-1.025924 C 29.348294,87.336754 27.499973,87.146283 25.674346,86.860686 22.561469,86.373715 19.221058,85.666071 16.196372,84.887162 13.754903,84.258443 11.500339,83.607301 9.2474422,82.646472 8.4506797,82.306665 7.7209261,81.879236 6.9576595,81.495637 6.2836925,80.980139 5.1531914,80.335643 4.9324601,79.508164 c -0.03267,-0.122478 -0.034864,-0.234384 -0.014986,-0.338481 0.00359,-0.18151 0.019971,-0.176255 0.1038696,-0.344684 0.1640695,-0.263128 0.1096889,-0.203168 0.2930054,-0.407209 0.058642,-0.06527 0.1161214,-0.131353 0.1788004,-0.192752 0.00122,-0.0013 0.00288,-0.0019 0.00414,-0.0031 0.00567,-0.0062 0.011636,-0.0122 0.017571,-0.0181 0.021439,-0.02133 0.046669,-0.03796 0.07028,-0.05685 0.046792,-0.03742 0.093938,-0.07475 0.1431435,-0.108003 0.04413,-0.04101 0.091399,-0.06514 0.147278,-0.0894 0.00386,-0.0016 0.00767,-0.003 0.011369,-0.0041 0.00925,-0.01048 0.016378,-0.02249 0.030489,-0.02945 0.400263,-0.197601 0.8454358,-0.333861 1.2681397,-0.500745 0.4377661,-0.137829 0.8711104,-0.28508 1.3136149,-0.413411 0.8224134,-0.238509 1.5586414,-0.41729 2.4070884,-0.576194 0.643359,-0.120489 1.0135,-0.15648 1.64021,-0.238744 0.149614,-0.01963 0.299098,-0.04061 0.448552,-0.06098 l 1.08417,-0.620633 c -0.05928,2.65e-4 -0.118909,-0.0016 -0.178284,-0.0026 z m 40.756684,9.512083 c 0.01352,0.0136 0.02625,0.02775 0.03979,0.04134 0.09605,0.02021 0.191669,0.04322 0.286805,0.06821 -0.108259,-0.03947 -0.217215,-0.07534 -0.326596,-0.109553 z m 1.517737,0.823722 c 0.05162,0.0471 0.105056,0.09224 0.15503,0.141075 -0.05709,-0.05467 -0.109723,-0.103076 -0.15503,-0.141075 z m 0.192754,0.177765 c 0.266166,0.266372 0.494906,0.571302 0.749824,0.848011 0.0038,0.0059 0.02831,0.04017 0.04083,0.05684 5.29e-4,-0.01278 2.64e-4,-0.0231 -0.0016,-0.02687 -0.03487,-0.06838 -0.105976,-0.11117 -0.153995,-0.171048 -0.06281,-0.07832 -0.118954,-0.161891 -0.178285,-0.242879 -0.0928,-0.09506 -0.284781,-0.296784 -0.456819,-0.464056 z" />
    <path
       id="path5906"
       style="fill:#a02c2c;fill-rule:evenodd;stroke-width:0.766506;paint-order:stroke fill markers"
       d="m 13.647225,55.974874 c -0.95397,-0.01873 -1.910408,0.767466 -2.43551,1.246436 -0.192447,0.17554 -0.235527,0.430342 -0.303857,0.671793 -0.0066,0.03381 -0.01307,0.06767 -0.02067,0.101285 -0.0106,0.04686 -0.02224,0.09341 -0.03359,0.140044 -3.7e-4,0.0021 -6.61e-4,0.0035 -10e-4,0.0057 -0.0084,0.439891 -0.05294,0.881558 -0.01188,1.319298 0.05798,0.61827 0.17734,1.231119 0.31626,1.838647 0.388904,1.700753 0.881911,3.078107 1.507402,4.734595 1.020323,2.702136 1.28219,3.183617 2.500622,5.936588 0.509506,1.13588 1.00614,2.27624 1.528589,3.407545 1.193103,2.583527 2.186784,4.670462 3.608049,7.174756 1.451115,2.556889 3.045887,5.018278 4.714956,7.469312 0.77166,1.133171 1.580192,2.246479 2.370399,3.369818 1.861506,2.766793 3.829529,5.484683 5.991882,8.080639 0.85168,1.02247 2.162622,2.50383 3.179651,3.46026 0.404535,0.38038 0.856139,0.72111 1.28416,1.08159 0.910823,0.46467 1.211078,0.75697 2.260844,0.82062 0.310859,0.0188 0.631605,-0.0131 0.930693,-0.0935 0.52552,-0.14139 1.271103,-0.69238 1.86862,-1.19631 -0.138748,0.0484 -0.279945,0.0932 -0.374656,0.12764 -0.652457,0.23725 -1.453875,0.23139 -2.117182,0.0765 -0.464331,-0.10843 -0.888111,-0.31729 -1.33222,-0.47594 -0.498075,-0.31356 -1.023741,-0.59668 -1.493964,-0.94102 -1.280417,-0.93765 -2.500635,-2.11906 -3.568258,-3.22358 -2.376549,-2.458682 -4.482979,-5.102705 -6.552573,-7.760246 -0.79016,-1.123278 -1.598782,-2.236711 -2.370397,-3.369821 -1.539602,-2.260899 -3.394751,-5.104876 -4.714441,-7.468793 -1.34098,-2.402054 -2.405407,-4.745826 -3.470589,-7.24762 -0.489842,-1.150493 -0.939118,-2.314046 -1.4087,-3.471106 -0.396297,-1.091861 -1.781844,-4.87394 -2.181262,-6.102469 -0.524561,-1.613445 -1.041168,-3.307059 -1.25677,-5.00848 -0.05184,-0.246809 -0.09613,-0.495335 -0.130742,-0.745176 -0.02412,-0.20098 -0.04591,-0.403381 -0.03721,-0.606163 5.29e-4,-0.01212 0.0029,-0.0223 0.0062,-0.03101 -0.0038,-0.04418 -0.0066,-0.08848 -0.0072,-0.132808 -0.0044,-0.309292 0.0018,-0.31641 0.02015,-0.626835 0.0098,-0.127135 0.01693,-0.254481 0.02946,-0.381373 0.0041,-0.04165 0.01307,-0.08286 0.02067,-0.124023 0.04812,-0.261715 0.109155,-0.52102 0.182934,-0.776698 0.008,-0.02789 0.02109,-0.04671 0.03566,-0.05788 0.0057,-0.01455 0.0063,-0.03066 0.01292,-0.04496 0.05643,-0.122801 0.03556,-0.09066 0.08733,-0.159163 0.03115,-0.04102 0.06116,-0.08289 0.09663,-0.120407 0.04364,-0.04617 0.09613,-0.08346 0.149862,-0.116789 0.02179,-0.01352 0.04231,-0.01945 0.05943,-0.01963 0.0015,0 0.0027,-3.2e-5 0.0041,0 0.04213,-0.0095 0.08446,-0.01667 0.126607,-0.01601 1.322397,0.01995 2.355981,0.916221 3.315043,1.563211 0.38241,0.332304 0.78279,0.649592 1.147217,0.996839 0.586986,0.559316 1.33994,1.391389 1.807125,2.048455 0.323479,0.454951 0.558248,0.961326 0.778764,1.459857 L 21.22868,61.99003 C 21.087885,61.792482 20.900241,61.520524 20.742922,61.349241 20.537811,61.125919 20.31145,60.918269 20.096966,60.701737 19.289824,59.886868 18.98196,59.543531 18.095021,58.7494 c -0.379237,-0.339553 -0.777873,-0.662101 -1.166854,-0.993222 -0.860053,-0.609714 -1.916495,-1.605227 -3.09025,-1.766816 -0.06345,-0.0087 -0.127088,-0.01323 -0.190686,-0.01447 z m 29.255579,49.569066 c 0.260734,-0.0909 0.504876,-0.19892 0.359667,-0.30644 -0.0013,-10e-4 -0.0024,-0.002 -0.0036,-0.003 -0.110098,0.0989 -0.228145,0.20115 -0.356049,0.30903 z m 0.35605,-0.30902 c 0.31151,-0.27976 0.545616,-0.51105 0.60048,-0.58033 0.250232,-0.31599 0.125283,-0.75577 0.188103,-1.13378 -0.0084,-0.94374 0.02339,-1.95697 -0.159163,-2.88975 -0.09373,-0.47891 -0.281665,-0.939138 -0.422714,-1.408697 l -0.0801,0.03979 c -0.126992,0.601723 -0.276707,1.200297 -0.380857,1.805057 -0.0958,0.5563 -0.145746,1.11722 -0.218591,1.67587 -0.08769,0.4993 -0.175353,0.9988 -0.263033,1.4981 -0.887127,2.85991 -0.465799,0.11039 0.735872,0.99374 z" />
    <path
       style="fill:#a0a0a0;stroke:none;stroke-width:0.158245"
       d=""
       id="path7782"
       transform="scale(0.26458333)" />
    <path
       style="fill:#a0a0a0;stroke:none;stroke-width:0.158245"
       d=""
       id="path7821"
       transform="scale(0.26458333)" />
    <path
       style="fill:#a02c2c;fill-opacity:1;stroke:none;stroke-width:0.0296006"
       d="m 11.641617,57.15 c -0.01479,-0.06852 0.01315,0.06065 5e-5,0 z"
       id="path37999"
       inkscape:transform-center-x="-0.04769897"
       inkscape:transform-center-y="0.93565869"
       sodipodi:nodetypes="ccc" />
    <path
       id="path49005"
       clip-path="url(#clipPath66549)"
       style="fill:none;stroke:#000000;stroke-width:0.999999px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
       transform="scale(0.26458333)"
       d="m 48.041016,215.17773 -2,1 c 0.655801,-0.2448 1.293277,-0.56448 1.974609,-0.72656 0.15617,-0.037 0.61754,-0.062 0.466797,-0.11719 -0.146608,-0.0536 -0.294262,-0.10416 -0.441406,-0.15625 z" />
  </g>
  <g
     inkscape:groupmode="layer"
     id="layer7"
     inkscape:label="flèches test 4"
     style="display:none"
     transform="translate(-11.57442,-3.1941091)">
    <g
       inkscape:groupmode="layer"
       id="layer6"
       inkscape:label="flèches test 3"
       transform="translate(-2.0866871,-53.330472)"
       style="display:none">
      <path
         id="path175"
         style="display:inline;fill:#ecb41a;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.276002;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:0;paint-order:stroke fill markers"
         d="m 32.00153,53.857243 c -0.258918,0.187592 -0.491347,0.445564 -0.814943,0.730945 -0.980303,1.452359 -1.262744,1.745197 -2.06597,3.725697 -0.279042,0.688027 -0.469685,1.433302 -0.664623,2.171008 -0.471228,1.783256 -0.847366,3.769946 -1.122296,5.625953 -0.16664,1.124973 -0.28533,2.26451 -0.428145,3.396858 -0.07947,1.325979 -0.190498,2.6467 -0.238494,3.978261 -0.104239,2.892032 -0.07519,5.877645 0.04972,8.791302 0.115473,2.692852 0.342338,5.871054 0.703594,8.56628 0.177742,1.326038 0.437237,2.64212 0.655846,3.96305 0.626331,3.113934 1.343351,6.231873 2.429959,9.202203 0.259296,0.7088 0.553609,1.40106 0.859643,2.08483 0.66032,1.47534 0.788067,1.60951 1.548841,2.87626 0.319777,0.39431 0.771533,1.10831 1.278415,1.22475 0.475396,0.10922 0.934952,-0.29687 1.186242,-0.69769 1.17125,-1.86848 1.065634,-1.74756 1.580563,-3.35734 0.118114,-0.61772 0.330708,-1.66871 0.401189,-2.29672 0.03688,-0.32861 0.03756,-0.66569 0.05636,-0.99846 l -0.03965,0.0553 c -0.129196,0.48495 -0.258445,0.96936 -0.387511,1.45436 -0.518219,1.94732 -0.22667,0.96334 -0.856492,2.88993 -0.100004,0.25744 -0.232366,0.49804 -0.332303,0.75551 -0.07267,0.1304 -0.136648,0.29861 -0.236522,0.37218 -0.711541,0.52415 -1.304568,-0.15512 -1.888137,-0.71209 -0.270231,-0.35771 -0.559664,-0.69484 -0.810367,-1.07307 -0.688511,-1.03872 -1.321063,-2.26136 -1.833828,-3.42435 -0.73517,-1.66747 -1.384002,-3.477933 -1.88598,-5.247829 -0.321641,-1.134052 -0.570873,-2.290511 -0.856313,-3.435762 -0.234654,-1.294978 -0.508744,-2.583854 -0.704077,-3.884722 -0.403125,-2.684697 -0.675899,-5.728052 -0.800553,-8.41784 -0.133358,-2.877601 -0.136039,-6.014513 0.0027,-8.864256 0.06653,-1.365738 0.206096,-2.716648 0.309248,-4.075109 0.151683,-1.143505 0.273455,-2.296866 0.455092,-3.430695 0.295292,-1.843294 0.765193,-4.069073 1.282319,-5.831168 0.232762,-0.793122 0.516858,-1.557324 0.793463,-2.324918 0.103415,-0.287001 0.201119,-0.581884 0.345897,-0.837227 0.234096,-0.412868 0.52329,-0.771664 0.784981,-1.157312 0.599228,-0.529215 0.885266,-0.96192 1.679219,-1.00818 0.299986,-0.01746 0.610201,0.07067 0.904998,0.185744 0.698194,0.272526 1.319419,0.786403 1.865917,1.401201 0.310896,0.349751 0.572889,0.760957 0.859219,1.141364 0.247886,0.429633 0.519783,0.841026 0.743456,1.288956 0.208031,0.416619 0.380194,0.857047 0.54795,1.297426 0.421489,1.106561 0.750209,2.282038 0.853123,3.472489 l 0.795167,-1.202681 C 38.560014,60.722067 38.007072,59.237524 37.304616,57.857572 37.074102,57.404738 36.815239,56.972971 36.570499,56.530743 36.288243,56.134335 36.029034,55.711472 35.723666,55.34179 35.194441,54.701105 34.57884,54.118394 33.886686,53.795952 33.592797,53.659047 33.28121,53.546508 32.976229,53.54903 c -0.430119,0.0037 -0.715939,0.120634 -0.974863,0.308219 z" />
      <path
         id="path175-3"
         style="display:inline;fill:#ecb41a;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.276002;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:0;paint-order:stroke fill markers"
         d="m 60.009276,61.920503 c 0.01058,0.319558 -0.05067,0.661348 -0.07767,1.091961 -0.54614,1.664954 -0.604269,2.06763 -1.676186,3.916561 -0.372383,0.642321 -0.844197,1.249916 -1.307397,1.856263 -1.119689,1.465726 -2.458387,2.981084 -3.755914,4.336359 -0.786465,0.821465 -1.613838,1.613984 -2.420738,2.421151 -0.9987,0.875864 -1.973894,1.773432 -2.9963,2.627857 -2.220582,1.85573 -4.596817,3.663556 -6.974993,5.351535 -2.197971,1.560036 -4.847638,3.329698 -7.198197,4.697039 -1.156467,0.672721 -2.3552,1.274757 -3.532692,1.912063 -2.843851,1.414703 -5.746478,2.760222 -8.759134,3.72328 -0.718902,0.22981 -1.446209,0.421816 -2.173999,0.599357 -1.570321,0.38307 -1.75464,0.364432 -3.221788,0.540244 -0.507564,-0.01081 -1.348589,0.07016 -1.751387,-0.258843 -0.377788,-0.308555 -0.338805,-0.920586 -0.176276,-1.364869 0.757758,-2.070954 0.727003,-1.913376 1.682861,-3.307248 0.415528,-0.472086 1.115373,-1.284486 1.568238,-1.725255 0.236964,-0.230636 0.502816,-0.43787 0.754152,-0.656775 l -0.01937,0.06523 c -0.303853,0.399426 -0.607247,0.798563 -0.91122,1.197917 -1.220474,1.60345 -0.621977,0.769772 -1.757641,2.448668 -0.142037,0.236858 -0.250926,0.488952 -0.393033,0.725772 -0.0584,0.137387 -0.152092,0.291048 -0.148961,0.415056 0.02227,0.883475 0.922493,0.935397 1.720303,1.054842 0.44827,-0.0059 0.892059,0.01602 1.344565,-0.01787 1.242709,-0.09307 2.596387,-0.343115 3.829493,-0.65121 1.767988,-0.441758 3.595986,-1.039398 5.301892,-1.728169 1.093051,-0.441326 2.1594,-0.953589 3.239098,-1.430377 1.166831,-0.608719 2.353023,-1.182544 3.500393,-1.825935 2.367917,-1.327811 4.939216,-2.978518 7.140395,-4.529424 2.354876,-1.659196 4.834457,-3.580627 7.000477,-5.437679 1.038041,-0.890022 2.019582,-1.828645 3.029418,-2.743134 0.810275,-0.821014 1.646678,-1.624444 2.430943,-2.463187 1.274999,-1.363564 2.745064,-3.099596 3.819894,-4.588603 0.483781,-0.670206 0.913238,-1.363229 1.34997,-2.052415 0.163296,-0.257679 0.336321,-0.51568 0.449249,-0.786618 0.182593,-0.438088 0.28868,-0.886545 0.432846,-1.329741 0.0506,-0.797861 0.217005,-1.289145 -0.233303,-1.944678 -0.170159,-0.247674 -0.429999,-0.438681 -0.701668,-0.600987 -0.643407,-0.384413 -1.430268,-0.560027 -2.251027,-0.614728 -0.466919,-0.03112 -0.952396,0.01408 -1.428468,0.02116 -0.491382,0.06764 -0.983081,0.105123 -1.474069,0.203107 -0.456664,0.09114 -0.910141,0.225214 -1.360877,0.362738 -1.132561,0.345596 -2.262675,0.80673 -3.266153,1.455418 l 0.462438,-1.365607 c 1.467466,-0.571463 2.979212,-1.044997 4.500021,-1.336291 0.499057,-0.09559 0.998857,-0.155862 1.49826,-0.233708 0.486213,-0.02012 0.979191,-0.07466 1.458465,-0.06013 0.830616,0.02518 1.668402,0.154148 2.347536,0.503179 0.288358,0.148201 0.568319,0.325324 0.753341,0.567785 0.260826,0.342031 0.343721,0.639513 0.354313,0.959072 z" />
    </g>
    <path
       id="path173"
       style="display:inline;fill:#ecc73b;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.338;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:0.84;paint-order:stroke fill markers"
       d="M 6.4723148,7.5892923 C 6.7534122,7.4434529 7.0822553,7.3723636 7.4770761,7.224129 c 1.697985,-0.056717 2.079947,-0.1569007 4.1461889,0.324266 0.717816,0.1671598 1.443223,0.4650624 2.164179,0.7534185 1.742755,0.6970373 3.614807,1.6293987 5.327999,2.5804805 1.038411,0.576478 2.066862,1.212863 3.100442,1.819198 1.16933,0.801894 2.348909,1.56724 3.508303,2.405801 2.518104,1.821286 5.053862,3.844547 7.483385,5.920169 2.245407,1.91833 4.853213,4.277218 6.985854,6.454407 1.049246,1.071162 2.051803,2.221277 3.077601,3.331814 2.366352,2.734145 4.69376,5.565882 6.722515,8.68598 0.48413,0.744548 0.937752,1.514709 1.37867,2.29146 0.951324,1.675971 1.006241,1.899255 1.732519,3.541178 0.187323,0.597919 0.585973,1.547389 0.448674,2.155712 -0.128776,0.570544 -0.69017,0.780522 -1.149789,0.776017 C 50.261133,48.24287 50.413708,48.21302 48.798676,47.677536 48.216042,47.388845 47.219353,46.909861 46.650183,46.564439 46.352386,46.383717 46.064259,46.159435 45.771334,45.957 l 0.06581,-0.0046 c 0.474417,0.188444 0.948414,0.376497 1.422811,0.565121 1.904792,0.757358 0.928431,0.405746 2.86764,1.032436 0.266535,0.06718 0.5338,0.08921 0.80034,0.156474 0.145287,0.01099 0.318778,0.05628 0.428249,8.32e-4 0.779886,-0.394957 0.47686,-1.469125 0.273811,-2.451778 -0.179223,-0.521626 -0.331914,-1.04964 -0.537765,-1.564529 -0.565357,-1.414006 -1.313863,-2.89222 -2.067422,-4.20526 C 47.944387,37.603129 46.701526,35.71548 45.424716,34.008625 44.606605,32.914966 43.735548,31.882152 42.890972,30.818919 41.894839,29.708931 40.922323,28.56171 39.902787,27.488924 37.798693,25.274939 35.327472,22.957999 33.088969,21.032108 30.694163,18.971739 28.016908,16.875076 25.518755,15.118234 24.321515,14.276269 23.102835,13.520635 21.894709,12.72185 20.847459,12.117356 19.805768,11.474963 18.752792,10.908277 17.04094,9.9869966 14.920944,8.9931907 13.17482,8.358322 12.388884,8.0725646 11.603664,7.8598557 10.819048,7.6370367 10.525682,7.5537377 10.228261,7.4591603 9.9426121,7.4402711 9.4807411,7.40973 9.0393041,7.4729575 8.5877861,7.4894763 7.8560251,7.7634778 7.3529581,7.7740793 6.9426329,8.5742834 6.7875965,8.8766355 6.7179792,9.260199 6.6784977,9.6455802 c -0.0934,0.9127558 0.055234,1.9060448 0.3249413,2.8884758 0.1534301,0.558896 0.3821871,1.107616 0.5732671,1.661256 0.251071,0.546254 0.475352,1.105469 0.75335,1.638595 0.258573,0.495851 0.554226,0.970047 0.8519,1.439599 0.748,1.179823 1.5981669,2.308533 2.5665869,3.210875 l -1.398321,0.02958 C 9.2706181,19.036937 8.2612701,17.467218 7.4110661,15.8108 7.1320575,15.26725 6.8842985,14.708075 6.6210075,14.156703 6.4143548,13.596648 6.1743522,13.043058 6.0013187,12.476653 5.7014477,11.495018 5.4914111,10.461673 5.5393623,9.5219204 5.5597232,9.1229023 5.6091666,8.7216258 5.7537675,8.4040629 5.9576941,7.9562001 6.1911602,7.7351624 6.4722685,7.5893371 Z" />
  </g>
 </svg>
--- a/data/models/dimers
+++ b/data/models/dimers
@ -0,0 +1,118 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gem-graph-model version="0.2.1">
    <identity>
       <name>Modèle de test</name>
       <owner>Léontine Patinette</owner>
       <owner_id>2</owner_id>
       <date>1630000000</date>
       <version>1.0</version>
       <g_ref id="Cause" date="1630000000" author="toujours" lang="en">Ref</g_ref>
    </identity>
    <parameters id="texte" date="0" author="Léontine Trottine.">
        <simulation>
            <max_thread>0</max_thread>
            <max_cycles>9</max_cycles>
        </simulation>
        <space-param>
    <!-- loop_on_zero="true"  anything moved before zero reenters at the end of space-->
    <!-- loop_on_zero="false" anything moved before zero is lost-->
    <!-- loop_on_max="true"   anything moved beyond max reenters at the zero of space-->
    <!-- loop_on_max="false"  anything moved beyond max is lost-->
            <dimension x="29"/>
            <!-- Site_multiplicity = number of  sites in a space unit. -->
            <!-- Each site points towards a neighbouring space unit. -->
            <!-- Several arrows can be stacked in the same site. -->
            <site_multiplicity>3</site_multiplicity>
        </space-param>
    </parameters>
    <!-- Model objects definition -->
    <objects id="only dimers in this model" date="1630000000" author="inanimés,... âme ?">
        <object id="a dimer" date="1630000000" author="Alphonse">
            <arrow site="1" weight="1" x="0"/>
            <arrow site="2" weight="1" x="1"/>
        </object>
    </objects>
    <!-- Saved space description (initial space is sequence 0) -->
    <savedstates id="texte" date="1630000000" author="Qui courrait dans l'herbe'">
        <state id="initial" date="1630000000" author="Une souris verte">
            <arrow site="0" weight="1" x="0"/>
            <arrow site="1" weight="1" x="1"/>
            <arrow site="0" weight="1" x="10"/>
            <arrow site="1" weight="1" x="11"/>
            <arrow site="0" weight="1" x="20"/>
            <arrow site="1" weight="1" x="21"/>
          <!-- Three dimers 1-1 are drawn in the global space
               at locations (0,1) (10,11) and (20,21) -->
      </state>
    </savedstates>
    <!-- Model transitions definition (rules) -->
    <!-- In this version : <xs:sequence minOccurs="0" maxOccurs="unbounded">-->
    <!-- Transitions should be edited by hand and written in a 'human-readable' format -->
    <conditions id="random walk of dimers" date="1630000000" author="Zazard le lézard !">
        <condition site="1" weight="1" node_id="1" parent="0" x="0"/>
        <condition site="2" weight="1" node_id="2" parent="1" x="1"/>
        <!-- as soon as conditions 1 and 2 are satisfied, a dimer is identified at atation (0,1). -->
        <condition site="1" weight="0" node_id="3" parent="2" x="2"/>
        <!-- as soon as condition 3 is satisfied,
             the neighbouring space unit to East of the dimer is empty
             and the dimer identified by conditions (1,2)  can be moved to East. -->
        <condition site="2" weight="0" node_id="4" parent="2" x="-1"/>
        <!-- as soon as condition 4 is satisfied,
             the neighbouring space unit to West of the dimer is empty
             and  the dimer identified by conditions (1,2) can be moved to West. -->
    </conditions>
    <transitions>
        <transition id="move_a_dimer_to_east" date="1630000000" author="Pas moi..."
                  parent="3" probability="1">
            <arrow site="1" weight="0" x="0"/>
            <arrow site="2" weight="0" x="1"/>
            <arrow site="1" weight="1" x="1"/>
            <arrow site="2" weight="1" x="2"/>
      </transition>
      <transition id="move_a_dimer_to_west" date="1630000000" author="Ni moi !"
                  parent="4" probability="1">
            <arrow site="1" weight="0" x="0"/>
            <arrow site="2" weight="0" x="1"/>
            <arrow site="2" weight="1" x="0"/>
            <arrow site="1" weight="1" x="1"/>
      </transition>
    </transitions>
 </gem-graph-model>
--- a/data/models/dimers_random_walk_recursif.xml
+++ b/data/models/dimers_random_walk_recursif.xml
@ -0,0 +1,145 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gem-graph-model version="0.2.1">
    <identity>
       <name>Test 21-03-2023</name>
       <owner>J</owner>
       <owner_id>J</owner_id>
       <date>time_stamp</date>
       <version>1.0</version>
       <g_ref id="Cause" date="time_stamp" author="J" lang="en">Ref</g_ref>
    </identity>
    <parameters id="texte" date="0" author="J">
        <simulation>
            <max_thread>0</max_thread>
            <max_cycles>9</max_cycles>
        </simulation>
        <space-param>
    <!-- loop_on_zero="true"  anything moved before zero reenters at the end of space-->
    <!-- loop_on_zero="false" anything moved before zero is lost-->
    <!-- loop_on_max="true"   anything moved beyond max reenters at the zero of space-->
    <!-- loop_on_max="false"  anything moved beyond max is lost-->
            <dimension x="22" y="4" z="8"/>
            <!-- Site_multiplicity = number of  sites in a space unit. -->
            <!-- Each site points towards a neighbouring space unit. -->
            <!-- Several arrows can be stacked in the same site. -->
            <site_multiplicity>3</site_multiplicity>
        </space-param>
    </parameters>
    <!-- Model objects definition -->
    <objects id="only dimers in this model" date="time_stamp" author="J">
        <object id="a dimer" date="time_stamp" author="J">
            <arrow site="1" weight="1" x="0"/>
            <arrow site="2" weight="1" x="1"/>
        </object>
    </objects>
    <!-- Saved space description (initial space is sequence 0) -->
    <savedstates id="texte" date="time_stamp" author="J">
        <state id="initial" date="time_stamp" author="J">
            <arrow site="1" weight="1" x="0"/>
            <arrow site="2" weight="1" x="1"/>
            <arrow site="1" weight="1" x="10"/>
            <arrow site="2" weight="1" x="11"/>
            <arrow site="1" weight="1" x="20"/>
            <arrow site="2" weight="1" x="21"/>
          <!-- Three dimers 1-1 are drawn in the global space
               at locations (0,1) (10,11) and (20,21) -->
      </state>
    </savedstates>
    <!-- Model transitions definition (rules) -->
    <!-- In this version : <xs:sequence minOccurs="0" maxOccurs="unbounded">-->
    <!-- Transitions should be edited by hand and written in a 'human-readable' format -->
    <conditions_tree>
        <condition_anonym site="1" weight="1" x="0">
            <condition_anonym site="2" weight="1" x="1">
                <condition_anonym site="1" weight="0" x="2">             
                    <transition_anonym id="move_a_dimer_to_east" 
                                date="time_stamp" 
                                author="J"
                                probability="0.5"/>
                    <arrow site="1" weight="0" x="0"/>
                    <arrow site="2" weight="0" x="1"/>
                    <arrow site="1" weight="1" x="1"/>
                    <arrow site="2" weight="1" x="2"/>
                </condition_anonym>
                <condition_anonym site="2" weight="0" x="-1">
                    <transition_anonym id="move_a_dimer_to_west" 
                                date="time_stamp" 
                                author="J"
                                probability="0.5"/>
                    <arrow site="1" weight="0" x="0"/>
                    <arrow site="2" weight="0" x="1"/>
                    <arrow site="2" weight="1" x="0"/>
                    <arrow site="1" weight="1" x="1"/>
                </condition_anonym>
            </condition_anonym>
        </condition_anonym>
    </conditions_tree>
    <conditionslist id="random walk of dimers" date="time_stamp" author="J">
        <condition site="1" weight="1" node_id="1" parent="0" x="0"/>
        <condition site="2" weight="1" node_id="2" parent="1" x="1"/>
        <!-- as soon as conditions 1 and 2 are satisfied, a dimer is identified at atation (0,1). -->
        <condition site="1" weight="0" node_id="3" parent="2" x="2"/>
        <!-- as soon as condition 3 is satisfied,
             the neighbouring space unit to East of the dimer is empty
             and the dimer identified by conditions (1,2)  can be moved to East. -->
        <condition site="2" weight="0" node_id="4" parent="2" x="-1"/>
        <!-- as soon as condition 4 is satisfied,
             the neighbouring space unit to West of the dimer is empty
             and  the dimer identified by conditions (1,2) can be moved to West. -->
    </conditionslist>
    <transitionslist>
        <transition id="move_a_dimer_to_east" date="time_stamp" author="J"
                  parent="3" probability="1">
            <arrow site="1" weight="0" x="0"/>
            <arrow site="2" weight="0" x="1"/>
            <arrow site="1" weight="1" x="1"/>
            <arrow site="2" weight="1" x="2"/>
        </transition>
        <transition id="move_a_dimer_to_west" date="time_stamp" author="J"
                  parent="4" probability="1">
            <arrow site="1" weight="0" x="0"/>
            <arrow site="2" weight="0" x="1"/>
            <arrow site="2" weight="1" x="0"/>
            <arrow site="1" weight="1" x="1"/>
        </transition>
    </transitionslist>
 </gem-graph-model>
--- a/data/schemas/models_0.2.1.xmls
+++ b/data/schemas/models_0.2.1.xmls
@ -0,0 +1,194 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 <!-- https://www.freeformatter.com/xml-validator-xsd.html -->
 <xs:attribute name="id" type="xs:string"/>
 <xs:attribute name="node_id" type="xs:integer"/>
 <xs:attribute name="parent" type="xs:integer"/>
 <xs:attribute name="date" type="xs:integer"/>
 <xs:attribute name="name" type="xs:string"/>
 <xs:attribute name="lang" type="xs:string"/>
 <xs:attribute name="owner" type="xs:string"/>
 <xs:attribute name="owner_id" type="xs:integer"/>
 <xs:attribute name="author" type="xs:string"/>
 <xs:attribute name="version" type="xs:float"/>
 <xs:attribute name="probability" type="xs:integer"/>
 <xs:attribute name="site" type="xs:integer" default="0"/>
 <xs:attribute name="weight" type="xs:integer" default="0"/>
 <xs:attribute name="u" type="xs:integer"/>
 <xs:attribute name="v" type="xs:integer"/>
 <xs:attribute name="w" type="xs:integer"/>
 <xs:attribute name="x" type="xs:integer"/>
 <xs:attribute name="y" type="xs:integer"/>
 <xs:attribute name="z" type="xs:integer"/>
 <xs:attribute name="t" type="xs:integer"/>
 <xs:attributeGroup name="id_date_author">
      <xs:attribute ref="id"/>
      <xs:attribute ref="date"/>
      <xs:attribute ref="author"/>
 </xs:attributeGroup>
 <xs:element name="g_ref">
    <xs:complexType>
        <xs:simpleContent>
            <xs:extension base="xs:string">
              <xs:attributeGroup ref="id_date_author"/>
              <xs:attribute ref="lang" use="required"/>
            </xs:extension>
        </xs:simpleContent>
    </xs:complexType>
 </xs:element>
 <xs:element name="quote" substitutionGroup="g_ref"/>
 <xs:element name="dimension">
    <xs:complexType>
        <xs:attribute ref="u" use="optional"/>
        <xs:attribute ref="v" use="optional"/>
        <xs:attribute ref="w" use="optional"/>
        <xs:attribute ref="x" use="optional"/>
        <xs:attribute ref="y" use="optional"/>
        <xs:attribute ref="z" use="optional"/>
        <xs:attribute ref="t" use="optional"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="arrow">
    <xs:complexType>
        <xs:attribute ref="site" use="required"/>
        <xs:attribute ref="weight" use="required"/>
        <xs:attribute ref="u" use="optional"/>
        <xs:attribute ref="v" use="optional"/>
        <xs:attribute ref="w" use="optional"/>
        <xs:attribute ref="x" use="optional"/>
        <xs:attribute ref="y" use="optional"/>
        <xs:attribute ref="z" use="optional"/>
        <xs:attribute ref="t" use="optional"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="condition">
    <xs:complexType>
        <xs:attribute ref="site" use="required"/>
        <xs:attribute ref="weight" use="required"/>
        <xs:attribute ref="node_id" use="required"/>
        <xs:attribute ref="parent" use="required"/>
        <xs:attribute ref="u" use="optional"/>
        <xs:attribute ref="v" use="optional"/>
        <xs:attribute ref="w" use="optional"/>
        <xs:attribute ref="x" use="optional"/>
        <xs:attribute ref="y" use="optional"/>
        <xs:attribute ref="z" use="optional"/>
        <xs:attribute ref="t" use="optional"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="state">
    <xs:complexType>
    <xs:sequence minOccurs="1" maxOccurs="unbounded">
        <xs:element ref="arrow"/>
    </xs:sequence>
    <xs:attributeGroup ref="id_date_author"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="object" substitutionGroup="state"/>
 <xs:element name="transition">
    <xs:complexType>
        <xs:sequence minOccurs="1" maxOccurs="unbounded">
            <xs:element minOccurs="0" ref="quote"/>
            <xs:element ref="arrow"/>
        </xs:sequence>
        <xs:attributeGroup ref="id_date_author"/>
        <xs:attribute ref="parent" use="required"/>
        <xs:attribute ref="probability" use="required"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="gem-graph-model">
 <xs:complexType>
 <xs:sequence minOccurs="1" maxOccurs="1">
    <xs:element name="identity">
        <xs:complexType>
          <xs:sequence minOccurs="1" maxOccurs="1">
              <xs:element name="name" type="xs:string"/>
              <xs:element name="owner" type="xs:string"/>
              <xs:element name="owner_id" type="xs:integer"/>
              <xs:element name="date" type="xs:integer"/>
              <xs:element name="version" type="xs:float"/>
              <xs:element ref="g_ref" minOccurs="1" maxOccurs="1"/>
          </xs:sequence>
        </xs:complexType>
    </xs:element>
    <xs:element name="parameters">
        <xs:complexType>
        <xs:sequence minOccurs="1" maxOccurs="1">
            <xs:element name="simulation">
                <xs:complexType>
                <xs:sequence minOccurs="1" maxOccurs="1">
                    <xs:element name="max_thread" type="xs:integer"/>
                    <xs:element name="max_cycles" type="xs:integer"/>
                </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="space-param">
                <xs:complexType>
                <xs:sequence minOccurs="1" maxOccurs="1">
                    <xs:element ref="dimension"/>
                    <xs:element name="site_multiplicity" type="xs:integer"/>
              </xs:sequence>
              </xs:complexType>
          </xs:element>
          </xs:sequence>
          <xs:attributeGroup ref="id_date_author"/>
          </xs:complexType>
      </xs:element>
      <xs:element name="objects">
          <xs:complexType>
          <xs:sequence minOccurs="1" maxOccurs="unbounded">
              <xs:element ref="object"/>
          </xs:sequence>
          <xs:attributeGroup ref="id_date_author"/>
          </xs:complexType>
      </xs:element>
      <xs:element name="savedstates">
          <xs:complexType>
          <xs:sequence minOccurs="0" maxOccurs="unbounded">
              <xs:element ref="state"/>
          </xs:sequence>
          <xs:attributeGroup ref="id_date_author"/>
          </xs:complexType>
      </xs:element>
      <xs:element name="conditions">
          <xs:complexType>
          <xs:sequence minOccurs="0" maxOccurs="unbounded">
              <xs:element minOccurs="0" ref="quote"/>
              <xs:element ref="condition"/>
          </xs:sequence>
          <xs:attributeGroup ref="id_date_author"/>
          </xs:complexType>
      </xs:element>
      <xs:element name="transitions">
          <xs:complexType>
          <xs:sequence minOccurs="0" maxOccurs="unbounded">
              <xs:element ref="transition"/>
          </xs:sequence>
          </xs:complexType>
      </xs:element>
 </xs:sequence>
 <xs:attribute ref="version" use="required"/>
 </xs:complexType>
 </xs:element>
 </xs:schema>
--- a/data/schemas/models_0_recursif.2.1.xmls
+++ b/data/schemas/models_0_recursif.2.1.xmls
@ -0,0 +1,235 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
 <!-- https://www.freeformatter.com/xml-validator-xsd.html -->
 <xs:attribute name="id" type="xs:string"/>
 <xs:attribute name="node_id" type="xs:integer"/>
 <xs:attribute name="parent" type="xs:integer"/>
 <xs:attribute name="date" type="xs:integer"/>
 <xs:attribute name="name" type="xs:string"/>
 <xs:attribute name="lang" type="xs:string"/>
 <xs:attribute name="owner" type="xs:string"/>
 <xs:attribute name="owner_id" type="xs:integer"/>
 <xs:attribute name="author" type="xs:string"/>
 <xs:attribute name="version" type="xs:float"/>
 <xs:attribute name="probability" type="xs:integer"/>
 <xs:attribute name="site" type="xs:integer" default="0"/>
 <xs:attribute name="weight" type="xs:integer" default="0"/>
 <xs:attribute name="u" type="xs:integer"/>
 <xs:attribute name="v" type="xs:integer"/>
 <xs:attribute name="w" type="xs:integer"/>
 <xs:attribute name="x" type="xs:integer"/>
 <xs:attribute name="y" type="xs:integer"/>
 <xs:attribute name="z" type="xs:integer"/>
 <xs:attribute name="t" type="xs:integer"/>
 <xs:attributeGroup name="id_date_author">
      <xs:attribute ref="id"/>
      <xs:attribute ref="date"/>
      <xs:attribute ref="author"/>
 </xs:attributeGroup>
 <xs:element name="g_ref">
    <xs:complexType>
        <xs:simpleContent>
            <xs:extension base="xs:string">
              <xs:attributeGroup ref="id_date_author"/>
              <xs:attribute ref="lang" use="required"/>
            </xs:extension>
        </xs:simpleContent>
    </xs:complexType>
 </xs:element>
 <xs:element name="quote" substitutionGroup="g_ref"/>
 <xs:element name="dimension">
    <xs:complexType>
        <xs:attribute ref="u" use="optional"/>
        <xs:attribute ref="v" use="optional"/>
        <xs:attribute ref="w" use="optional"/>
        <xs:attribute ref="x" use="optional"/>
        <xs:attribute ref="y" use="optional"/>
        <xs:attribute ref="z" use="optional"/>
        <xs:attribute ref="t" use="optional"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="arrow">
    <xs:complexType>
        <xs:attribute ref="site" use="required"/>
        <xs:attribute ref="weight" use="required"/>
        <xs:attribute ref="u" use="optional"/>
        <xs:attribute ref="v" use="optional"/>
        <xs:attribute ref="w" use="optional"/>
        <xs:attribute ref="x" use="required"/>
        <xs:attribute ref="y" use="optional"/>
        <xs:attribute ref="z" use="optional"/>
        <xs:attribute ref="t" use="optional"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="condition">
    <xs:complexType>
        <xs:attribute ref="site" use="required"/>
        <xs:attribute ref="weight" use="required"/>
        <xs:attribute ref="node_id" use="required"/>
        <xs:attribute ref="parent" use="required"/>
        <xs:attribute ref="u" use="optional"/>
        <xs:attribute ref="v" use="optional"/>
        <xs:attribute ref="w" use="optional"/>
        <xs:attribute ref="x" use="required"/>
        <xs:attribute ref="y" use="optional"/>
        <xs:attribute ref="z" use="optional"/>
        <xs:attribute ref="t" use="optional"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="condition_anonym">
    <xs:complexType>
        <xs:sequence minOccurs="0" maxOccurs="unbounded">
            <xs:element ref="condition_anonym"/>
        </xs:sequence>
        <xs:sequence minOccurs="0" maxOccurs="unbounded">
            <xs:element ref="arrow"/>
        </xs:sequence>
        <xs:attribute ref="site" use="required"/>
        <xs:attribute ref="weight" use="required"/>
        <xs:attribute ref="u" use="optional"/>
        <xs:attribute ref="v" use="optional"/>
        <xs:attribute ref="w" use="optional"/>
        <xs:attribute ref="x" use="required"/>
        <xs:attribute ref="y" use="optional"/>
        <xs:attribute ref="z" use="optional"/>
        <xs:attribute ref="t" use="optional"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="state">
    <xs:complexType>
    <xs:sequence minOccurs="1" maxOccurs="unbounded">
        <xs:element ref="arrow"/>
    </xs:sequence>
    <xs:attributeGroup ref="id_date_author"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="object" substitutionGroup="state"/>
 <xs:element name="transition">
    <xs:complexType>
        <xs:sequence minOccurs="1" maxOccurs="unbounded">
            <xs:element minOccurs="0" ref="quote"/>
            <xs:element ref="arrow"/>
        </xs:sequence>
        <xs:attributeGroup ref="id_date_author"/>
        <xs:attribute ref="parent" use="required"/>
        <xs:attribute ref="probability" use="required"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="transition_anonym">
    <xs:complexType>
        <xs:attributeGroup ref="id_date_author"/>
        <xs:attribute ref="probability" use="required"/>
    </xs:complexType>
 </xs:element>
 <xs:element name="gem-graph-model">
 <xs:complexType>
 <xs:sequence minOccurs="1" maxOccurs="1">
    <xs:element name="identity">
        <xs:complexType>
          <xs:sequence minOccurs="1" maxOccurs="1">
              <xs:element name="name" type="xs:string"/>
              <xs:element name="owner" type="xs:string"/>
              <xs:element name="owner_id" type="xs:integer"/>
              <xs:element name="date" type="xs:integer"/>
              <xs:element name="version" type="xs:float"/>
              <xs:element ref="g_ref" minOccurs="1" maxOccurs="1"/>
          </xs:sequence>
        </xs:complexType>
    </xs:element>
    <xs:element name="parameters">
        <xs:complexType>
        <xs:sequence minOccurs="1" maxOccurs="1">
            <xs:element name="simulation">
                <xs:complexType>
                <xs:sequence minOccurs="1" maxOccurs="1">
                    <xs:element name="max_thread" type="xs:integer"/>
                    <xs:element name="max_cycles" type="xs:integer"/>
                </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="space-param">
                <xs:complexType>
                <xs:sequence minOccurs="1" maxOccurs="1">
                    <xs:element ref="dimension"/>
                    <xs:element name="site_multiplicity" type="xs:integer"/>
              </xs:sequence>
              </xs:complexType>
          </xs:element>
          </xs:sequence>
          <xs:attributeGroup ref="id_date_author"/>
          </xs:complexType>
      </xs:element>
      <xs:element name="objects">
          <xs:complexType>
          <xs:sequence minOccurs="1" maxOccurs="unbounded">
              <xs:element ref="object"/>
          </xs:sequence>
          <xs:attributeGroup ref="id_date_author"/>
          </xs:complexType>
      </xs:element>
      <xs:element name="savedstates">
          <xs:complexType>
          <xs:sequence minOccurs="0" maxOccurs="unbounded">
              <xs:element ref="state"/>
          </xs:sequence>
          <xs:attributeGroup ref="id_date_author"/>
          </xs:complexType>
      </xs:element>
      <xs:element name="conditionslist">
          <xs:complexType>
          <xs:sequence minOccurs="0" maxOccurs="unbounded">
              <xs:element minOccurs="0" ref="quote"/>
              <xs:element ref="condition"/>
          </xs:sequence>
          <xs:attributeGroup ref="id_date_author"/>
          </xs:complexType>
      </xs:element>
      <xs:element name="transitionslist">
          <xs:complexType>
          <xs:sequence minOccurs="0" maxOccurs="unbounded">
              <xs:element ref="transition"/>
          </xs:sequence>
          </xs:complexType>
      </xs:element>
      <xs:element name="conditionstree">
          <xs:complexType>
          <xs:sequence minOccurs="0" maxOccurs="unbounded">
              <xs:element ref="condition_anonym"/>
          </xs:sequence>
          <xs:sequence minOccurs="0" maxOccurs="1">
              <xs:element ref="transition_anonym"/>
          </xs:sequence>
          <xs:sequence minOccurs="0" maxOccurs="unbounded">
              <xs:element ref="arrow"/>
          </xs:sequence>
          </xs:complexType>
      </xs:element>
 </xs:sequence>
 <xs:attribute ref="version" use="required"/>
 </xs:complexType>
 </xs:element>
 </xs:schema>
--- a/description_modes.txt
+++ b/description_modes.txt
@ -0,0 +1,32 @@
 Home:
    - Pas de sidebar (inutile)
    - Récemment ouverts
        - Permettre d'ouvrir directement sans validation (par un "ne pas redemander")
    - Logo en grand au centre
 Edit:
    - Sidebar présente
        - Bibliothèques (par stack)
            - objets
            - conditions/transitions (liées)
            - états sauvegardés
    - Zone principale
        - vue état globale 3D (en haut ou en bas) avec zoom sur localité
        - vue édition (avec split) -> vue 3D aussi ? vue schématique ? 
            - conditions/transitions
            - objets
            - états
 Run:
    - Sidebar
        - Contrôles
            - Vitesse
            - Pas à pas
            - Avance/Recul/Run/Pause (avec vue buffer)
    - Bibliothèques (par stack)
            - objets
            - conditions/transitions (liées)
            - états sauvegardés
    - Zone principale
        - Vue globale 3D (en haut ou bas)
        - Mesures (stats par exemple)
--- a/143
+++ b/143
@ -0,0 +1,143 @@
 static GLuint *buffer_lines_origin = NULL;
 ---
 long get_buffer_lines_size() {return buffer_lines_size / 2;}
 void inc_buffer_lines_size(long inc) {buffer_lines_size += inc * 2;}
 void dec_buffer_lines_size(long dec) {buffer_lines_size -= dec * 2;}
 void xxx_draw_line (GLuint *lines_origin, int a, int b, long lines_index)
 {
    //  https://docs.gtk.org/glib/func.realloc.html
    printf("xxx_draw_line %ld\n", lines_index);
    buffer_lines_origin = g_realloc(lines_origin, sizeof(GLuint) * 2);
    *(lines_origin + lines_index + 0) = a; // lines_index ++;
    *(lines_origin + lines_index + 1) = b; // lines_index ++;
 }
 /* (gdb) help
 List of classes of commands:
 aliases -- User-defined aliases of other commands.
 breakpoints -- Making program stop at certain points.
 data -- Examining data.
 files -- Specifying and examining files.
 internals -- Maintenance commands.
 obscure -- Obscure features.
 running -- Running the program.
 stack -- Examining the stack.
 status -- Status inquiries.
 support -- Support facilities.
 text-user-interface -- TUI is the GDB text based interface.
 tracepoints -- Tracing of program execution without stopping the program.
 user-defined -- User-defined commands.
 */
 -------------------------------------------------------------------------------------------
 GLuint arrows[] = {
     1,    0,  0, 0, 0,
     /* 1,    1,  1, 0, 0, */
     /* 1,    2,  2, 1, 1, */
     /* 1,    3,  2, 2, 1, */
     /* 1,    4,  3, 0, 1, */
     /* 1,    5,  3, 0, 2, */
     /* 1,    1,  3, 0, 2, */
     /* 1,    0,  2, 0, 2, */
     /* 1,    5,  2, 1, 1, */
 // load, site, x, y, z
 };
 static void get_model_data_and_user_preferences(){
    model_space_size_x = 1;    //   0 < model_space_size_x
    model_space_size_y = 1;    //   0 < model_space_size_y
    model_space_size_z = 1;    //   0 < model_space_size_z
    // XXX ONLY space drawed, no arrows yet
    model_arrows_nb = sizeof(arrows); //  assert : l'emplacement des flèches est contraint
                         //  par model_space_size_x, y, z et le nombre de sites
    central_stars_nb = 0;  //  à calculer   TODO
    // !  WARNING  !  Pour l'instant égal au nombre de flèches ! (central stars réécrites)
    central_stars_nb = model_arrows_nb;
 //    pref_mark_unit_space = 0;       // 0 = no marks, 1 = 1st, 2 = last, 3 = both
 //    pref_style_lines_planes = 0;    // 0 = arrows as lines, 1 = as planes, 2 = mix
 //    pref_style_mix_colors = 0;      // TODO
    pref_show_grid = 0;             //  0,   1,   2, 3, 5,   6, 10, 15,   30,   etc
                                    // xyz,  0,   x, y, z,  xy, xz, yz,  xyz
    pref_test_diagonal = 1;
 }
 -------------------------------------------------------------------------------------------
 in buffers.c  (line 283)
 static void draw_line (GLuint *lines_origin, int a, int b)
 {
    xxx_draw_line (lines_origin, a, b, lines_index);
    lines_index += 2;
  //  *(lines_origin + lines_index) = a; lines_index ++;
  //  *(lines_origin + lines_index) = b; lines_index ++;
 }
 ---------------------------------------------------------------------------
 [ n]  load  site  x    y    z   ----    < arrows array >    ------------------------------------------------------------
 [ 0] =  1,   0,   0,   0,   0        
 [ 1] =  0,   0,   0,  217808480,  32708        
 [ 2] = 217809344,  32708,  217807968,  32708,  217810080        
 [ 3] = 32708,  -69297984,  32707,  229965808,  32708        
 [ 4] = 229944176,  32708,  217808608,  32708,  229970384        
 [ 5] = 32708,  217808576,  32708,  217809024,  32708        
 [ 6] = 217808992,  32708,  -69297888,  32707,  229954976        
 [ 7] = 32708,  217808512,  32708,  229949456,  32708        
 [ 8] = 229942736,  32708,   0,   0,   0        
 [ 9] =  0,   0,   0,  226977440,  32708        
 [10] = 217810048,  32708,  217808352,  32708,  217808704        
 [11] = 32708,  -69297600,  32707,  217808448,  32708        
 [12] = 217807808,  32708,  217808896,  32708,  217809312        
 [13] = 32708,  217807872,  32708,  225561296,  32708        
 [14] = 217814880,  32708,  217814944,  32708,  217807776        
 [15] = 32708,  229974752,  32708,  217811040,  32708        
 [16] = 229947200,  32708,   0,   0,  33506144        
 [17] =  0,   0,   0,   0,   0        
 [18] = 33204048,   0,   0,   0,  33587952        
 [19] =  0,  30217696,   0,  30245088,   0        
 [ n]  load  site  x    y    z   ----    < arrows array >    ------------------------------------------------------------
 [ 0] =  1,   0,   0,   0,   0        
 [ 1] =  0,   0,   0,  2105314912,  32683        
 [ 2] = 2105315776,  32683,  2105314400,  32683,  2105316512        
 [ 3] = 32683,  2019551424,  32683,  2117545968,  32683        
 [ 4] = 2117524336,  32683,  2105315040,  32683,  2117550544        
 [ 5] = 32683,  2105315008,  32683,  2105315456,  32683        
 [ 6] = 2105315424,  32683,  2019551520,  32683,  2117535136        
 [ 7] = 32683,  2105314944,  32683,  2117529616,  32683        
 [ 8] = 2117522896,  32683,   0,   0,   0        
 [ 9] =  0,   0,   0,  2114557600,  32683        
 [10] = 2105316480,  32683,  2105314784,  32683,  2105315136        
 [11] = 32683,  2019551808,  32683,  2105314880,  32683        
 [12] = 2105314240,  32683,  2105315328,  32683,  2105315744        
 [13] = 32683,  2105314304,  32683,  2113141456,  32683        
 [14] = 2105321312,  32683,  2105321376,  32683,  2105314208        
 [15] = 32683,  2117554912,  32683,  2105317472,  32683        
 [16] = 2117527360,  32683,   0,   0,  16032608        
 [17] =  0,   0,   0,   0,   0        
 [18] = 15766240,   0,   0,   0,  15950576        
 [19] =  0,  12654048,   0,  12681440,   0        
--- a/gdb.txt
+++ b/gdb.txt
@ -0,0 +1,77 @@
 The program is not being run.
 Temporary breakpoint 1 at 0x404740: file src/main.c, line 42.
 Starting program: /home/jean/Gem-Graph/gem-graph-client/bin/gem-graph-client 
 [Thread debugging using libthread_db enabled]
 Using host libthread_db library "/gnu/store/gsjczqir1wbz8p770zndrpw4rnppmxi3-glibc-2.35/lib/libthread_db.so.1".
 Temporary breakpoint 1, main (argc=1, argv=0x7fffffffce58) at src/main.c:42
 42	    app = gem_graph_client_application_new("org.alec.gemgraph",
 Continuing.
 [New Thread 0x7fffef5ff640 (LWP 21368)]
 [New Thread 0x7fffee2f5640 (LWP 21369)]
 [New Thread 0x7fffecfeb640 (LWP 21370)]
 [Thread 0x7fffecfeb640 (LWP 21370) exited]
 [New Thread 0x7fffecfeb640 (LWP 21371)]
 [New Thread 0x7fffe49b5640 (LWP 21372)]
 [New Thread 0x7fffe41b4640 (LWP 21373)]
 [New Thread 0x7fffe2eaa640 (LWP 21374)]
 [New Thread 0x7fffe1ba0640 (LWP 21375)]
 [New Thread 0x7fffe0896640 (LWP 21376)]
 [New Thread 0x7fffdf58c640 (LWP 21377)]
 [New Thread 0x7fffde282640 (LWP 21378)]
 [New Thread 0x7fffdcf78640 (LWP 21379)]
 [New Thread 0x7fffdbc6e640 (LWP 21380)]
 [Thread 0x7fffe49b5640 (LWP 21372) exited]
 [Thread 0x7fffde282640 (LWP 21378) exited]
 [Thread 0x7fffdf58c640 (LWP 21377) exited]
 [Thread 0x7fffe0896640 (LWP 21376) exited]
 [Thread 0x7fffe1ba0640 (LWP 21375) exited]
 [Thread 0x7fffe41b4640 (LWP 21373) exited]
 [Thread 0x7fffdbc6e640 (LWP 21380) exited]
 [Thread 0x7fffdcf78640 (LWP 21379) exited]
 [Thread 0x7fffe2eaa640 (LWP 21374) exited]
 [Thread 0x7fffecfeb640 (LWP 21371) exited]
 [New Thread 0x7fffecfeb640 (LWP 21381)]
 [New Thread 0x7fffdbc6e640 (LWP 21382)]
 [New Thread 0x7fffdcf78640 (LWP 21383)]
 [New Thread 0x7fffde282640 (LWP 21384)]
 [New Thread 0x7fffe33ff640 (LWP 21385)]
 [New Thread 0x7fffe20f5640 (LWP 21386)]
 [New Thread 0x7fffe0deb640 (LWP 21387)]
 [New Thread 0x7fffe05ea640 (LWP 21388)]
 [New Thread 0x7fffdda81640 (LWP 21389)]
 [New Thread 0x7fffdb46d640 (LWP 21390)]
 [New Thread 0x7fffd965a640 (LWP 21391)]
 [New Thread 0x7fffd8350640 (LWP 21392)]
 [New Thread 0x7fffd7046640 (LWP 21393)]
 [New Thread 0x7fffd5d3c640 (LWP 21394)]
 [New Thread 0x7fffd4a32640 (LWP 21395)]
 [New Thread 0x7fffd3728640 (LWP 21396)]
 [New Thread 0x7fffd241e640 (LWP 21397)]
 [New Thread 0x7fffd1c1d640 (LWP 21398)]
 [Thread 0x7fffd241e640 (LWP 21397) exited]
 [Thread 0x7fffd1c1d640 (LWP 21398) exited]
 [New Thread 0x7fffd1c1d640 (LWP 21399)]
 [New Thread 0x7fffd241e640 (LWP 21400)]
 [Thread 0x7fffd1c1d640 (LWP 21399) exited]
 [Thread 0x7fffd241e640 (LWP 21400) exited]
 [New Thread 0x7fffd241e640 (LWP 21401)]
 [New Thread 0x7fffd1c1d640 (LWP 21402)]
 [Thread 0x7fffd7046640 (LWP 21393) exited]
 Thread 1 "gem-graph-clien" received signal SIGINT, Interrupt.
 0x00007ffff5ab4d4b in __memmove_sse2_unaligned_erms () from /gnu/store/gsjczqir1wbz8p770zndrpw4rnppmxi3-glibc-2.35/lib/libc.so.6
 Breakpoint 2 at 0x4088a5: file src/graphics/graphics.c, line 697.
 Continuing.
 [Thread 0x7fffd5d3c640 (LWP 21394) exited]
 Thread 1 "gem-graph-clien" received signal SIGINT, Interrupt.
 0x00007ffff5b77dca in __memset_avx2_unaligned_erms () from /gnu/store/gsjczqir1wbz8p770zndrpw4rnppmxi3-glibc-2.35/lib/libc.so.6
 Breakpoint 3 at 0x408320: file src/graphics/graphics.c, line 873.
 Continuing.
 Thread 1 "gem-graph-clien" received signal SIGINT, Interrupt.
 0x00007ffff5ab4e3e in __memmove_sse2_unaligned_erms () from /gnu/store/gsjczqir1wbz8p770zndrpw4rnppmxi3-glibc-2.35/lib/libc.so.6
 Quit
 quit
--- a/help/.gitkeep
+++ b/help/.gitkeep
--- a/include/base.h
+++ b/include/base.h
@ -0,0 +1,119 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: Base header
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #pragma once
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdbool.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
 #include <glib-2.0/glib.h>
 #define G_APPLICATION_DEFAULT_FLAGS 0
 // Graphical axis
 enum
 {
    X_AXIS,
    Y_AXIS,
    Z_AXIS,
    N_AXIS
 };
 // Gem-graph modes
 enum
 {
    HOME_MODE,
    RUN_MODE,
    EDIT_MODE,
    PRESENTATION_MODE,
    N_MODE
 };
 /*
 * Structure describing an arrow
 */
 struct arrow_t {
    uint load;
    uint site;
    uint x;
    uint y;
    uint z;
 };
 /*
 * Read a file from filename into a provided buffer
 *
 * @param   filename, file name
 *          contents, target ptr
 *
 * @return  void
 */
 static inline char *read_file(char *filename)
 {
    int fd;
    int filesize;
    char *contents;
    fd = open(filename, O_RDONLY);
    if(fd < 0) {
        printf("Couldn't read file: %s\n",filename);
        return NULL;
    }
    filesize = lseek(fd, 0, SEEK_END) + 1 ;
    contents = g_malloc(filesize * sizeof(char));
    assert (contents);
    lseek(fd, 0, SEEK_SET);
    read(fd,contents,filesize);
    contents[filesize-1] = '\0';
    close(fd);
    return contents;
 }
 /* I'm standing on Earth (any planet or star or spinning spheroid, in fact)
 * and looking towards its North pole
 *
 *  X - X   =   EAST   - WEST    =   rouge - cyan
 *  Y - Y   =   ZENITH - NADIR   =   vert  - magenta
 *  Z - Z   =   NORTH  - SOUTH   =   bleu  - jaune
 */
 #define EAST   0 // + x  rouge
 #define WEST   1 // - x  cyan
 #define ZENITH 2 // + y  vert
 #define NADIR  3 // - y  magenta
 #define SOUTH  4 // + z  bleu
 #define NORTH  5 // - z  jaune
--- a/include/graphics.h
+++ b/include/graphics.h
@ -0,0 +1,314 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: OpenGL utils header
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #pragma once
 #include "base.h"
 #include <unistd.h>
 #include <stdbool.h>
 #include <epoxy/gl.h>
 #include <GL/glu.h>
 #include <GL/glext.h>
 #include <cglm/cglm.h>
 #define VERTEX_SHADER_FILE "src/graphics/shaders/shader.vert"
 #define FRAG_SHADER_FILE "src/graphics/shaders/shader.frag"
 #define GL_TARGET_MAJOR_VERSION 0
 #define GL_TARGET_MINOR_VERSION 4
 /*
 * Structure describing a gl_area and its parameters, used to create a table
 * of Gem-graph client current gl_areas
 */
 struct graphic_stack_t {
    int id;
    int mode;
    float rotation_angles[N_AXIS]; // Rotation angles on each axis
    GLuint vao;             //  init_buffers
    GLuint position_buffer; //  shutdown, draw
    GLuint color_buffer;    //  shutdown, draw
    GLuint program;         //  shutdown, init_shaders, draw
    GLuint m;               //  init_shaders, draw
    GLuint v;               //  init_shaders, draw
    GLuint p;               //  init_shaders, draw
    struct arrow_t *arrows_ptr;
    long arrows_nb;
    GLfloat *buffer_vertex_origin;
    GLfloat *buffer_colors_origin;
    GLuint *buffer_lines_origin;
    GLuint *buffer_plans_origin;
    long buffer_vertex_size;
    long buffer_colors_size;
    long buffer_lines_size;
    long buffer_plans_size;
    long buffer_vertex_0_arrow;
    long buffer_colors_0_arrow;
    long buffer_lines_0_arrow;
    long buffer_plans_0_arrow;
 };
 /*
 * Dynamic array of ptrs to dynamically allocated gl_area_entry
 */
 extern struct graphic_stack_t *graphic_stack;
 /*
 * Initializes a gl_area
 *
 * @param   gl_area, ptr to the gl_area widget
 *
 * @return  true if initialized
 */
 int graphics_init(void *error_buffer);
 /*
 * Draws the current buffer to a gl_area
 *
 * @param   gl_area, ptr to the gl_area widget
 *
 * @return  void
 */
 void graphics_draw(const int stack_id);
 /*
 * Shutdowns a gl_area
 *
 * @param   gl_area, ptr to the gl_area widget
 *
 * @return  true if success
 */
 bool graphics_shutdown(const int stack_id, void *error_buffer);
 /*
 * Initializes the shaders of a gl_area and link them to a program
 *
 * @param   gl_area, ptr to the gl_area widget
 *
 * @return  true if initialized
 */
 bool graphics_init_shaders(const int stack_id);
 /* Initializes the buffer of a gl_area
 * Calls according to the user preferences
 * @param   gl_area, ptr to the gl_area widget
 * @return  void
 */
 void graphics_init_buffers(const int stack_id);
 /*
 * Draws a vertex (x, y, z)
 * if (console) prints (x, y, z) values to console
 *
 * @param   GLfloat x, GLfloat y, GLfloat z
 *
 * @return  void
 */
 void graphics_draw_vertex (const int stack_id,
                           GLfloat x,
                           GLfloat y,
                           GLfloat z);
 /*
 * Draws the color (r, g, b) associated to a vertex
 * if (console) prints (r, g, b) values to console
 *
 * @param   GLfloat r, GLfloat g, GLfloat b
 *
 * @return  void
 */
 void graphics_draw_color (const int stack_id, GLfloat r, GLfloat g, GLfloat b);
 /*
 *  Writes values to describe a line from a to b into the line buffer
 *
 *  @param coords GLuint (a,b)
 *
 *  @return void
 */
 void graphics_draw_line (const int stack_id, GLuint a, GLuint b);
 /*
 *  Writes values to describe an (a,b,c) plan (triangle) into the plan buffer
 *
 *  @param coords GLuint (a,b,c)
 *
 *  @return void
 */
 void graphics_draw_plan (const int stack_id, GLuint a, GLuint b, GLuint c);
 /*
 * Created and compile a shader
 *
 * @param   type, shader type
 *          src, source code of shader
 *
 * @return  shader id
 */
 static inline GLuint create_shader(const int stack_id, int type, const char *src)
 {
    GLuint shader;
    int status;
    shader = glCreateShader(type);
    glShaderSource(shader, 1, &src, NULL);
    glCompileShader(shader);
    glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
    if(status == GL_FALSE) {
        int log_len;
        char *buffer;
        glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &log_len);
        buffer = g_malloc(log_len + 1);
        assert (buffer);
        glGetShaderInfoLog(shader, log_len, NULL, buffer);
        g_warning("Compile failure in %s shader:\n%s",
                             type == GL_VERTEX_SHADER ? "vertex" : "fragment",
                             buffer);
        g_free(buffer);
        glDeleteShader(shader);
        return 0;
     }
    return shader;
 }
 static inline void print_stack(int stack_id)
 {
    static int n = 0;
    printf("\n[n=%d]***************", n);
    printf("id = %d\tmode = %d\n",
           graphic_stack[stack_id].id,
           graphic_stack[stack_id].mode);
    printf("rotation_angles = ");
    for (int i = 0; i < N_AXIS; i++) {
        printf("%f\t", graphic_stack[stack_id].rotation_angles[i]); // Rotation angles on each axis
    }
    printf("\n");
    printf("vao = %d\n", graphic_stack[stack_id].vao);
    printf("position_buffer = %d\n", graphic_stack[stack_id].position_buffer);
    printf("color_buffer = %d\n", graphic_stack[stack_id].color_buffer);
    printf("program = %d\n", graphic_stack[stack_id].program);
    printf("m = %d\n", graphic_stack[stack_id].m);
    printf("v = %d\n", graphic_stack[stack_id].v);
    printf("p = %d\n", graphic_stack[stack_id].p);
    printf("arrows_ptr = %p\n", graphic_stack[stack_id].arrows_ptr);
    printf("arrows_nb = %ld\n", graphic_stack[stack_id].arrows_nb);
    printf("buffer_vertex_origin = %p\n", graphic_stack[stack_id].buffer_vertex_origin);
    printf("buffer_colors_origin = %p\n", graphic_stack[stack_id].buffer_colors_origin);
    printf("buffer_lines_origin = %p\n", graphic_stack[stack_id].buffer_lines_origin);
    printf("buffer_plans_origin = %p\n", graphic_stack[stack_id].buffer_plans_origin);
    printf("buffer_vertex_size = %ld\n", graphic_stack[stack_id].buffer_vertex_size);
    printf("buffer_colors_size = %ld\n", graphic_stack[stack_id].buffer_colors_size);
    printf("buffer_lines_size = %ld\n", graphic_stack[stack_id].buffer_lines_size);
    printf("buffer_plans_size = %ld\n", graphic_stack[stack_id].buffer_plans_size);
    printf("buffer_vertex_0_arrow = %p\n", graphic_stack[stack_id].buffer_vertex_0_arrow);
    printf("buffer_colors_0_arrow = %p\n", graphic_stack[stack_id].buffer_colors_0_arrow);
    printf("buffer_lines_0_arrow = %p\n", graphic_stack[stack_id].buffer_lines_0_arrow);
    printf("buffer_plans_0_arrow = %p\n", graphic_stack[stack_id].buffer_plans_0_arrow);
    printf("********************\n");
    n++;
 }
 void graphics_model_setup (const int stack_id);
 int draw_one_arrow_vertex (const int stack_id,
                           int space_X,
                           int space_Y,
                           int space_Z,
                           int weight,
                           int site,
                           int x,
                           int y,
                           int z);
 int draw_one_arrow_line(const int stack_id,
                        int offset_vertex);
 /*
 *  Writes grid ridges to vertex and color buffers
 *
 *  @param  coords long (x,y,z), step_x, step_y, step_z
 *
 *  @return void
 */
 int draw_space_ridges_vertex (const int stack_id,
                              long offset_vertex,
                              long x,
                              long y,
                              long z);
 int draw_space_ridges_lines (const int stack_id);
 /*
 *  Writes grid lines on space faces
 *
 *  @param  coords long (x,y,z)
 *
 *  @return void
 */
 long draw_grids_on_space_faces_vertex (const int stack_id,
                                       long x,
                                       long y,
                                       long z);
 long draw_grids_on_space_faces_lines (const int stack_id,
                                      long offset_vertex,
                                      long x,
                                      long y,
                                      long z);
 int set_arrow (int stack_id,
               int arrows_nb,
               int space_X,
               int space_Y,
               int space_Z,
               int requested_weight,
               int site,
               int arrow_x,
               int arrow_y,
               int arrow_z);
--- a/include/parsing.h
+++ b/include/parsing.h
@ -0,0 +1,39 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: Model parsing header
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #pragma once
 #include <unistd.h>
 #include "../include/base.h"
 bool model_init(const char *content, size_t length, const char *basename);
 bool model_shutdown(void);
 char model_get_dim(void);
 long model_get_dim_value(const char *axis);
 char model_get_multiplicity(void);
 bool model_get_next_state(char *new_state_id);
 bool model_get_next_arrow(struct arrow_t *new_arrow,
                          const char *state_id,
                          char dimension);
--- a/include/ui.h
+++ b/include/ui.h
@ -0,0 +1,232 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: User interface header
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #pragma once
 #include <unistd.h>
 #include <gtk-4.0/gtk/gtk.h>
 #include "../include/base.h"
 G_BEGIN_DECLS
 #define GEM_GRAPH_CLIENT_TYPE_WINDOW (gem_graph_client_window_get_type())
 G_DECLARE_FINAL_TYPE (GemGraphClientWindow,
                      gem_graph_client_window,
                      GEM_GRAPH_CLIENT,
                      WINDOW,
                      GtkApplicationWindow)
 G_END_DECLS
 G_BEGIN_DECLS
 #define GEM_GRAPH_CLIENT_TYPE_APPLICATION (gem_graph_client_application_get_type())
 G_DECLARE_FINAL_TYPE (GemGraphClientApplication,
                      gem_graph_client_application,
                      GEM_GRAPH_CLIENT,
                      APPLICATION,
                      GtkApplication)
 GemGraphClientApplication *gem_graph_client_application_new(const char *application_id,
                                                             GApplicationFlags flags);
 G_END_DECLS
 void ui_enable_action(const char *name);
 void ui_disable_action(const char *name);
 //
 // Actions
 //
 void on_about_action(GSimpleAction *action,
                     GVariant *parameter,
                     gpointer user_data);
 void on_quit_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_preferences_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_togglesidebar_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_editmode_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_runmode_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_presentmode_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_openfile_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_closefile_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_savefile_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 void on_toast_close_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data);
 static const GActionEntry app_actions[] = {
    { "quit", on_quit_action, NULL, NULL, NULL },
    { "about", on_about_action, NULL, NULL, NULL },
    { "preferences", on_preferences_action, NULL, NULL, NULL },
    { "togglesidebar", on_togglesidebar_action, NULL, NULL, NULL },
    { "editmode", on_editmode_action, NULL, NULL, NULL },
    { "runmode", on_runmode_action, NULL, NULL, NULL },
    { "presentmode", on_presentmode_action, NULL, NULL, NULL },
    { "openfile", on_openfile_action, NULL, NULL, NULL },
    { "closefile", on_closefile_action, NULL, NULL, NULL },
    { "savefile", on_savefile_action, NULL, NULL, NULL },
    { "toastclose", on_toast_close_action, NULL, NULL, NULL },
 };
 //
 // Actions responses
 //
 void on_openfile_response(GtkNativeDialog *native,
                          int response,
                          GemGraphClientWindow *self);
 void ui_model_loading(GObject *source_object,
                                   GAsyncResult *result,
                                   GemGraphClientWindow *self);
 //
 // General events
 //
 void on_axis_value_change(GtkAdjustment *adjustment, gpointer data);
 gboolean on_glarea_render(GtkGLArea * area, GdkGLContext * context);
 void on_glarea_realize(GtkWidget *widget);
 void on_glarea_unrealize(GtkWidget *widget);
 void on_close_window(GtkWidget *widget);
 /* -------------------------------------------------------------------------- */
 //
 // Window primitives
 //
 void ui_set_stack(int mode);
 void ui_send_internal_notification(const char *message);
 void ui_close_internal_notification(void);
 void ui_toggle_sidebar();
 //
 // Graphical stuff
 //
 /*
 *  Creates GLArea and indexes it
 *
 *  @params target_mode, meaning which ui_stack we're on
 *          target_widget, meaning the box that will host the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_setup_glarea(int target_mode, GtkWidget *target_widget);
 /*
 *  Look for stack entry and returns stack_id
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns stack_id
 */
 long ui_get_graphic_stack(void *container_widget);
 /*
 *  Look for stack entry and initializes OpenGL for it
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_init_graphic_stack(void *container_widget, GError *error_buffer);
 /*
 *  Look for stack entry and shutdowns OpenGL for it
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_shutdown_graphic_stack(void *container_widget, GError *error_buffer);
 void ui_clean_stack_index(void);
 /*
 *  Look for stack entry and triggers OpenGL for drawing
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_render_stack(GtkWidget *container_widget);
 /*
 *  Look for every stack entry and shutdowns OpenGL for it
 *
 *  @params void
 *
 *  @returns bool, true if success
 */
 void ui_shutdown_all_graphic_stacks(void);
 /*
 *  Look for stack entry and triggers OpenGL for drawing
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_update_axis_stack(GtkWidget *container_widget, int axis, int value);
--- a/manifest.scm
+++ b/manifest.scm
@ -0,0 +1,30 @@
 ;;
 ;; Dépendances sous GNU Guix
 ;;
 (specifications->manifest
  (list
      "bash"
      "coreutils"
      "gcc-toolchain"
      "pkg-config"
      "valgrind"
      "findutils"
      "gdb"
      "make"
      "gtk"
      "libxml2"
      "glu"
      "glew"
      "glfw"
      "cglm"
      "libepoxy"
      "pango@1.90.0"
      "xorgproto"
      "glib"
      "mesa-headers"
      "mesa"
      "libadwaita"
   )
 )
--- a/po/.gitkeep
+++ b/po/.gitkeep
--- a/src/graphics/arrows.c
+++ b/src/graphics/arrows.c
@ -0,0 +1,285 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: OpenGL utils header
 *
 *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
 *  Copyright (C) 2023 Arien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "../../include/base.h"
 #include "../../include/graphics.h"
 /* I'm standing on Earth (any planet or star or spinning spheroid, in fact)
 * and looking towards its North pole
 *
 *  X - X   =   EAST   - WEST    =   rouge - cyan
 *  Y - Y   =   ZENITH - NADIR   =   vert  - magenta
 *  Z - Z   =   NORTH  - SOUTH   =   bleu  - jaune
 */
 int draw_one_arrow_vertex (const int stack_id,
                           int space_X_int,
                           int space_Y_int,
                           int space_Z_int,
                           int weight,
                           int site,
                           int arrow_x,
                           int arrow_y,
                           int arrow_z)
 {
    float max = fmax(space_X_int, space_Y_int);
          max = fmax(max, space_Z_int);
    float i = arrow_x, j = arrow_y, k = arrow_z;
    float vx = (2 * i / space_X_int - 1) * space_X_int / max + (1 / max),
          vy = (2 * j / space_Y_int - 1) * space_Y_int / max + (1 / max),
          vz = (2 * k / space_Z_int - 1) * space_Z_int / max + (1 / max);
    graphics_draw_vertex(stack_id, vx, vy, vz);
    graphics_draw_color(stack_id, 0.4f, 0.4f, 0.4f);
    //    réduit légèrement les longueurs des flèches
    //    pour qu'elles s'arrêtent avant les faces des cubes
    GLfloat arrow_tip_padding = (1 / max) / 10;
    switch(site){
    case EAST:
        graphics_draw_vertex (stack_id, vx - (site % 2 - 1) * (1 / max) + (site % 2 - 1) * arrow_tip_padding, vy, vz);
        graphics_draw_color (stack_id, 1.0f, 0.0f, 0.0f);
        break;
    case WEST:
        graphics_draw_vertex (stack_id, vx - (site % 2) * (1 / max) + (site % 2) * arrow_tip_padding, vy, vz);
        graphics_draw_color (stack_id, 0.0f, 1.0f, 1.0f);
        break;
    case ZENITH:
        graphics_draw_vertex (stack_id, vx, vy - (site % 2 - 1) * (1 / max) + (site % 2 - 1) * arrow_tip_padding, vz);
        graphics_draw_color(stack_id, 0.0f, 0.6f, 0.1f);
        break;
    case NADIR:
        graphics_draw_vertex (stack_id, vx, vy - (site % 2) * (1 / max) + (site % 2) * arrow_tip_padding, vz);
        graphics_draw_color(stack_id, 0.6f, 0.1f, 0.7f);
        break;
    case SOUTH:
        graphics_draw_vertex (stack_id, vx, vy, vz - (site % 2 + 1) * (1 / max) + (site % 2 + 1) * arrow_tip_padding);
        graphics_draw_color(stack_id, 0.05f, 0.4f, 1.0f);
        break;
    case NORTH:
        graphics_draw_vertex (stack_id, vx, vy, vz - (site % 2 - 2) * (1 / max) + (site % 2 - 2) * arrow_tip_padding);
        graphics_draw_color(stack_id, 1.0f, 1.0f, 0.0f);
        break;
    default: break;
    }
    return 2*3;
 }
 int draw_one_arrow_line(const int stack_id, int offset_vertex)
 {
    graphics_draw_line (stack_id, offset_vertex + 0, offset_vertex + 1);
    return 2;
 }
 /*
 * Depends on set_arrow()
 * Exchanges current and required site values
 * when the address of the arrow to be set is already occupied
 */
 static int rewrite_arrow (const int stack_id,
                          int address,
                          int load,
                          int site,
                          int x,
                          int y,
                          int z)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    printf("WARNING in rewrite_arrow()  <>  address  or  address / 5  ?   (et pourquoi ?)\n");
    stack->arrows_ptr[address].load = load;
    return 1;
 }
 /*
 * Depends on set_arrow()
 * Creates the arrow to be set with the required load at the required address
 */
 static inline int create_arrow (int stack_id,
                                int arrows_nb,
                                int space_X,
                                int space_Y,
                                int space_Z,
                                int load,
                                int site,
                                int x,
                                int y,
                                int z)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    void *newptr = g_realloc(stack->arrows_ptr, (arrows_nb + 1) * sizeof(struct arrow_t));
    if (newptr)
        stack->arrows_ptr = newptr;
    else
        perror("In create arrow, can't allocate new arrow buffer !\n");
    stack->arrows_ptr[arrows_nb].load = load;
    stack->arrows_ptr[arrows_nb].site = site;
    stack->arrows_ptr[arrows_nb].x = x;
    stack->arrows_ptr[arrows_nb].y = y;
    stack->arrows_ptr[arrows_nb].z = z;
    draw_one_arrow_vertex(stack_id, space_X, space_Y, space_Z, load, site, x, y, z);
    draw_one_arrow_line (stack_id, stack->buffer_vertex_size / 3 - 2);
    arrows_nb ++;
    return arrows_nb;
 }
 /*
 * Depends on set_arrow()
 * Erases the arrow at the required address
 */
 static inline int erase_arrow (const int stack_id,
                               int arrows_nb,
                               int arrow_address_in_list,
                               GLuint site,
                               GLint x,
                               GLint y,
                               GLint z)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    if (arrows_nb == 0) assert (stack->buffer_lines_size ==
                                stack->buffer_lines_0_arrow);
    if (arrows_nb == 0) {
        stack->buffer_lines_size =
            stack->buffer_lines_0_arrow;
        return 0;
    }
    assert (arrows_nb);
    arrows_nb --;
    if (arrow_address_in_list  <  arrows_nb)
    {
        stack->arrows_ptr[arrow_address_in_list].load  =
                            stack->arrows_ptr[arrows_nb].load;
        stack->arrows_ptr[arrow_address_in_list].site  =
                            stack->arrows_ptr[arrows_nb].site;
        stack->arrows_ptr[arrow_address_in_list].x     =
                            stack->arrows_ptr[arrows_nb].x;
        stack->arrows_ptr[arrow_address_in_list].y     =
                            stack->arrows_ptr[arrows_nb].y;
        stack->arrows_ptr[arrow_address_in_list].z     =
                            stack->arrows_ptr[arrows_nb].z;
    }
    for (long i = 0; i < 6; i++)
        stack->buffer_vertex_origin [stack->buffer_vertex_0_arrow + arrow_address_in_list * 6 + i]
      = stack->buffer_vertex_origin [stack->buffer_vertex_size - 6 + i];
    for (long i = 0; i < 6; i++)
        stack->buffer_colors_origin [stack->buffer_colors_0_arrow + arrow_address_in_list * 6 + i]
      = stack->buffer_colors_origin [stack->buffer_colors_size - 6 + i];
    stack->buffer_vertex_size -= 6;   // <<<   l'inverse de ce qui est fait dans : graphics_draw_vertex()
    stack->buffer_colors_size -= 6;   // <<<   l'inverse de ce qui est fait dans : graphics_draw_colors()
    stack->buffer_lines_size  -= 2;   // <<<   l'inverse de ce qui est fait dans : graphics_draw_line()
    void *new_arrows_vertex_ptr = g_realloc(stack->buffer_vertex_origin, stack->buffer_vertex_size * sizeof(GLfloat));
    if (new_arrows_vertex_ptr) stack->buffer_vertex_origin = new_arrows_vertex_ptr;
    else                       perror("In graphics.erase_arrow(), can't re_allocate for arrows vertex buffer.\n");
    void *new_arrows_colors_ptr = g_realloc(stack->buffer_colors_origin, stack->buffer_colors_size * sizeof(GLfloat));
    if (new_arrows_colors_ptr) stack->buffer_colors_origin = new_arrows_colors_ptr;
    else                       perror("In graphics.erase_arrow(), can't re_allocate for arrows colors buffer.\n");
    /*  Il ne faut pas réécrire ce qui suit: ces lignes dessinent maintenant à partir d'autres vertex */
    /* void *new_arrows_lines_ptr = g_realloc(stack->buffer_lines_origin, stack->buffer_lines_size * sizeof(GLfloat)); */
    /* if (new_arrows_lines_ptr) stack->buffer_lines_origin = new_arrows_lines_ptr; */
    /* else                      perror("In graphics.erase_arrow(), can't re_allocate for arrows lines buffer.\n"); */
    return arrows_nb;
 }
 /*
 * Creates or deletes an arrow or modify the load of an existing one
 * Acts both by writing the list of arrows : (struct arrow_t *arrows_ptr, int arrows_nb)
 *       and by drawing in the global space
 *
 * @param   arrows_ptr and arrows_nb before operation,
 *          required load and address (site, x, y, z)
 *
 *          IF      there is no arrow at the required address,
 *          AND IF  the load is > 0, an arrow will be created.
 *
 *          IF      there is an arrow at the required address
 *          AND IF  the load is = 0, the existing arrow will be deleted.
 *
 *          IF      there is an arrow at the required address
 *          AND IF  the load is > 0, the load of the existing arrow will be modified.
 *
 *          May not call any of these three functions IF :
 *           - Current_weight of an arrow located at the requested address == requested_weight
 *           - No arrow was found at the requested addres AND current_weight == requested_weight
 *
 * @return  arrows_nb after operation
 */
 int set_arrow (int stack_id,
               int arrows_nb,
               int space_X,
               int space_Y,
               int space_Z,
               int requested_weight,
               int site,
               int arrow_x,
               int arrow_y,
               int arrow_z)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    int address = -1, current_weight = -1;
    for (int i = 0; i < arrows_nb; i++)
        if ((site       ==  stack->arrows_ptr[i].site)
        &&  (arrow_x    ==  stack->arrows_ptr[i].x)
        &&  (arrow_y    ==  stack->arrows_ptr[i].y)
        &&  (arrow_z    ==  stack->arrows_ptr[i].z))
        {
            address = i;
            current_weight = stack->arrows_ptr[i].load;
            break;
        }
    assert (address <= arrows_nb);
    if (address == -1 && requested_weight  > 0)
        return create_arrow (stack_id, arrows_nb, space_X, space_Y, space_Z, requested_weight, site, arrow_x, arrow_y, arrow_z);
    if (address >=  0 && requested_weight == 0) //   address >=  0  if and only if  arrows_nb > 0
        return erase_arrow(stack_id, arrows_nb, address, site, arrow_x, arrow_y, arrow_z);
    if (address >=  0 && current_weight != requested_weight) {
        rewrite_arrow(stack_id, address, requested_weight, site, arrow_x, arrow_y, arrow_z);
        return arrows_nb;
    }
    return arrows_nb;
 }
--- a/src/graphics/displays.c
+++ b/src/graphics/displays.c
@ -0,0 +1,295 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: GL functions
 *
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <stdlib.h>
 #include <time.h>
 #include "../../include/graphics.h"
 /* Prints the arrows[] array
 *
 * For each arrow the following parameters are displayed :
 * - rank in the array
 * - load (or weight)
 * - coordinates in space (site, x, y, z)
 */
 void print_arrows_array (struct arrow_t *arrows, int arrows_nb, int invoked_by)
 {
    printf("   [rank]   load | site  x    y    z        (");
    switch (invoked_by) {
    case 0: printf("after deletion)   arrows_nb : %d", arrows_nb); break;
    case 1: printf("after creation)   arrows_nb : %d", arrows_nb); break;
    case 2: printf("after modification)  arrows_nb : %d", arrows_nb); break;
    case 3: printf("address >=  0 && current_weight == requested_weight)"); break;
    case 4: printf("address == -1 && requested_weight == 0)"); break;
    case 5: printf("print_user_choices)"); break;
    case 6: printf("print_evolution)"); break;
    case 7: printf("before deletion)  arrows_nb : %d", arrows_nb); break;
    }
    for (int i = 0; i < arrows_nb; i++)
        printf("\n   [%4d] =  %2d  | %2d,  %2d,  %2d,  %2d", i, arrows[i].load,\
               arrows[i].site, arrows[i].x, arrows[i].y, arrows[i].z);
    if (arrows_nb == 0) printf("\n   [NULL]   ---- | ---- ---  ---  ---");
    printf("\n");
 }
 /* Prints the initial user choices :
 * - space dimension size and appearance (grids)
 * - arrows[] array
 *   NB The space may be empty or saturated with arrows or any value in between
 *      Only one arrow per possible coordinates with a load max equal to ? TODO
 */
 void print_user_choices(struct arrow_t *arrows, int max_arrows_nb, int arrows_nb,
                        int space_size_x, int space_size_y, int space_size_z,
                        int show_array, int show_space_design)
 {
    printf("model + user constraints :\tspace size x,y,z (%d,%d,%d)\tinitial (max) arrows nb : %d",\
           space_size_x, space_size_y, space_size_z, max_arrows_nb);
    if (show_space_design)      printf(" (grilles alternées)");
    printf("\n");
    if (show_array) print_arrows_array (arrows, arrows_nb, 5);
 }
 /* Prints the evolution after adding / removing arrows :
 * - arrows[] array
 *   NB The space may be empty or saturated with arrows or any value in between
 *      Only one arrow per possible coordinates with a load max equal to ? TODO
 *
 *
 * print_evolution (arrows, added, mem, deleted, print_arrows_data);
 */
 void print_evolution (struct arrow_t *arrows, int arrows_nb, int modified, int deleted, int show_array)
 {
    printf("evolution\t\t\t\t\t\t\tarrows nb > %6d\t (%d added  /  %d deleted)  (modified : %d)\n",\
           arrows_nb + modified - deleted * 2, modified - deleted, deleted, modified);
    if (show_array) print_arrows_array (arrows, arrows_nb, 6);
 }
 /*
 * Prints the arrows[] array
 *
 * For each arrow the following parameters are displayed :
 * - rank in the array
 * - weight (or load)
 * - coordinates in space (site, x, y, z)
 */
 void show_arrows_array_head(int one_batch_size, long nb_batches_specified, int verbose) {
    printf("\n   [rank]   load | site  x    y    z");
    if (verbose) printf("        one batch size = %d  nb_batches_specified = %ld",\
           one_batch_size, nb_batches_specified);
 }
 void show_one_arrow_in_array(struct arrow_t *arrows, int i) {
    printf("\n   [%4d] =  %2d  | %2d,  %2d,  %2d,  %2d",\
        i, arrows[i].load, arrows[i].site, arrows[i].x, arrows[i].y, arrows[i].z);
 }
 void show_empty_arrows_array() {printf("\n   [NULL]   ---- | ---- ---  ---  ---");}
 void show_arrows_array (struct arrow_t *arrows, int arrows_nb, int x, int y, int z)
 {
    show_arrows_array_head (0,0,0);
    for (int i = 0; i < arrows_nb; i++)
        show_one_arrow_in_array(arrows, i);
    if (arrows_nb == 0) show_empty_arrows_array();
 }
 /*
 * Prints the initial user choices :
 * - space dimension size and appearance (grids)
 * - arrows[] array
 *   NB The space may be empty or saturated with arrows or any value in between
 *      To assert : Only one arrow per possible coordinates with a load max equal to ?
 */
 void show_user_choices(long copy_nb_arrows_specified,
                       int space_size_x, int space_size_y, int space_size_z,
                       int prefer, int arbitrary, int one_batch_size)
 {
    printf("\nnb arrows specified = %ld", copy_nb_arrows_specified);
    printf("     space size (x,y,z) = (%d,%d,%d)", space_size_x, space_size_y, space_size_z);
    printf("     arbitrary = %d     one_batch_size = %d", arbitrary, one_batch_size);
    if (prefer == 0)    printf("     prefer = %d <> show all grids",  prefer);
    if (prefer == 1)    printf("     prefer = %d <> show no grid",    prefer);
    if (prefer  > 1)    printf("     show grids according rule (%d)", prefer);
 }
 /*
 * Prints the result of the function set_arrow()
 * and indicates the reasons of the choice (call) this function makes (see this function)
 */
 #define TEST 0
 void show_user_action(struct arrow_t *arrows, int arrows_nb, int address, int requested_weight,
                             int current_weight, int site, int x, int y, int z)
 {
    if (address == -1 && requested_weight  > 0) {   //  *(arrows + i * 5 + 0)
        printf("no such arrow found (%2d,%2d,%2d,%2d)", site, x, y, z); //arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4]);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("=>  CREATE"); return;}
    if (address >=  0 && requested_weight == 0) {
        printf("arrow (%2d,%2d,%2d,%2d) found at address %2d;  current_weight = %2d;", site, x, y, z, address, current_weight); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5, current_weight);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("=>  ERASE"); return;}
    if (address >=  0 && current_weight != requested_weight) {
        printf("arrow (%2d,%2d,%2d,%2d) found at address %2d;  current_weight = %2d;", site, x, y, z, address, current_weight); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5, current_weight);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("=>  MODIFY"); return;}
    if (address >=  0 && current_weight == requested_weight){
        printf("arrow (%2d,%2d,%2d,%2d) found at address %2d;", site, x, y, z, address); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("requested_weight == current_weight  =>  END"); return;}
    if (address == -1 && requested_weight == 0) {
        printf("no such arrow found (%2d,%2d,%2d,%2d)", site, x, y, z); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4]);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("=>  END"); return;}
 }
 /*
 * Prints vertex and lines buffers_states (sizes) at major one_batch_sizes and at the end of a session.
 * Major one_batch_sizes are creation of grids and creation of arrows
 * Arithmetic verification is provided at each one_batch_size
 */
 void show_buffers_states(int space_X, int space_Y, int space_Z,
                         long nb_batches_specified, int one_batch_size,
                         int offset_after_grids, int buffer_vertex_size,
                         int buffer_lines_size_after_cubes, int buffer_lines_size)
 {
    int offset_after_arrows = buffer_vertex_size / 3, difference = offset_after_arrows - offset_after_grids;
    printf("\n       -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -   -");
    printf("\n      buffer_vertex_offset_after grids = %9d\t%9d  = (x+1)*(y+1)*(z+1);  <-->  (x,y,z = %d,%d,%d)",\
           offset_after_grids, (space_X + 1)*(space_Y + 1)*(space_Z + 1), space_X, space_Y, space_Z);
    printf("\n     buffer_vertex_offset_after arrows = %9d\t%9d  = %d + %d;  <-->  %d = 12 x %d  (%d cubes)",\
           offset_after_arrows, offset_after_arrows, offset_after_grids,\
                  difference, difference, difference / 12, difference / 12);
    printf("\n       buffer_lines_offset after cubes = %9d\t%9d  = 2 * (%dx%d + %dx%d + %dx%d);  <-->  2 * (x*y + x*z + y*z)",\
           buffer_lines_size_after_cubes, ((space_X+1) * (space_Y+1) + (space_X+1) * (space_Z+1) + (space_Y+1) * (space_Z+1)) * 2,
           space_X+1, space_Y+1, space_X+1, space_Z+1, space_Y+1, space_Z+1);
    printf("\n      buffer_lines_offset after arrows = %9d\t%9d  = %d + %d;  <-->  %d = 14 x %d  (%d arrows drawned)",\
           buffer_lines_size, buffer_lines_size, buffer_lines_size_after_cubes,\
           buffer_lines_size - buffer_lines_size_after_cubes,\
           buffer_lines_size - buffer_lines_size_after_cubes, (buffer_lines_size - buffer_lines_size_after_cubes) / 14,\
           (buffer_lines_size - buffer_lines_size_after_cubes) / 14);
    if (nb_batches_specified * one_batch_size == 0) printf("\n");
    else printf("\n     WARNING  Arrows of the same address, whatever their weight, are drawn in superimposition. Check their list.");
    printf("\n   It happens that NOT all the specified arrows (%ld) = (%ld x %d) are drawned (%d) !  WHY ?  (d = %ld)\n",\
           nb_batches_specified * one_batch_size, nb_batches_specified, one_batch_size, (buffer_lines_size - buffer_lines_size_after_cubes) / 14,\
           nb_batches_specified * one_batch_size - (buffer_lines_size - buffer_lines_size_after_cubes) / 14);
 }
 /*
 * Prints the result of the function set_arrow()
 * and indicates the reasons of the choice (call) this function makes (see this function)
 */
 void print_user_action(struct arrow_t *arrows, int arrows_nb, int address, int requested_weight,
                             int current_weight, int site, int x, int y, int z)
 {
    if (address == -1 && requested_weight  > 0) {   //  *(arrows + i * 5 + 0)
        printf("no such arrow found (%2d,%2d,%2d,%2d)", site, x, y, z); //arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4]);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("=>  CREATE"); return;}
    if (address >=  0 && requested_weight == 0) {
        printf("arrow (%2d,%2d,%2d,%2d) found at address %2d;  current_weight = %2d;", site, x, y, z, address, current_weight); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5, current_weight);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("=>  ERASE"); return;}
    if (address >=  0 && current_weight != requested_weight) {
        printf("arrow (%2d,%2d,%2d,%2d) found at address %2d;  current_weight = %2d;", site, x, y, z, address, current_weight); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5, current_weight);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("=>  MODIFY"); return;}
    if (address >=  0 && current_weight == requested_weight){
        printf("arrow (%2d,%2d,%2d,%2d) found at address %2d;", site, x, y, z, address); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("requested_weight == current_weight  =>  END"); return;}
    if (address == -1 && requested_weight == 0) {
        printf("no such arrow found (%2d,%2d,%2d,%2d)", site, x, y, z); // arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4]);
        if (! TEST) printf("\n                                                  "); else printf("  ");
        printf("=>  END"); return;}
 }
 static inline void print_buffers_array_head ()  {printf("   [rank]   load | site  x    y    z       [address]          buffer-vertex-1           buffer-vertex-2            buffer-lines\n");}
 static inline void print_empty_buffers_array () {printf("   [NULL]   ---- | ---- ---  ---  ---         -1                   ---                       ---                        ---\n");}
 static void print_one_arrow_in_buffers (struct arrow_t *arrows,
    GLfloat *buffer_vertex_origin, long buffer_vertex_0_arrow,
    GLfloat *buffer_lines_origin, long buffer_lines_0_arrow,
    int i, int arrows_nb, int address)
 {
    printf("   [%4d] =  %2d  | %2d,  %2d,  %2d,  %2d,        (%2d)        %6.2f  %6.2f  %6.2f    %6.2f  %6.2f  %6.2f           %4f  %4f\n",\
        i,
        arrows[i].load,        arrows[i].site,        arrows[i].x,        arrows[i].y,        arrows[i].z,
        address,
        buffer_vertex_origin [buffer_vertex_0_arrow + i * 6 + 0],
        buffer_vertex_origin [buffer_vertex_0_arrow + i * 6 + 1],
        buffer_vertex_origin [buffer_vertex_0_arrow + i * 6 + 2],
        buffer_vertex_origin [buffer_vertex_0_arrow + i * 6 + 3],
        buffer_vertex_origin [buffer_vertex_0_arrow + i * 6 + 4],
        buffer_vertex_origin [buffer_vertex_0_arrow + i * 6 + 5],
        buffer_lines_origin  [buffer_lines_0_arrow  + i * 2 + 0],
        buffer_lines_origin  [buffer_lines_0_arrow  + i * 2 + 1]);
 }
 void print_vertex_and_lines_buffers (struct arrow_t *arrows_ptr, int arrows_nb,
        GLfloat *buffer_vertex_origin, long buffer_vertex_0_arrow,
        GLfloat *buffer_lines_origin, long buffer_lines_0_arrow,
        int address, int requested_weight, int current_weight, int site, int x, int y, int z)
 {
    /* for (int i = 0; i < 6; i++) printf("%5.2f ", buffer_vertex_origin [buffer_vertex_0_arrow + i]); printf("\n"); */
    /* for (int i = 0; i < 6; i++) printf("%5.2f ", buffer_lines_origin [buffer_lines_0_arrow + i]); printf("\n"); */
    print_buffers_array_head ();
    for (int i = 0; i < arrows_nb; i++)
        print_one_arrow_in_buffers(arrows_ptr, buffer_vertex_origin, buffer_vertex_0_arrow,
                                   buffer_lines_origin, buffer_lines_0_arrow, i, arrows_nb, address);
    if (arrows_nb == 0) print_empty_buffers_array();
 }
--- a/src/graphics/draw.c
+++ b/src/graphics/draw.c
@ -0,0 +1,207 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: GL functions
 *
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 /*
 *  Writes values to describe a vertex at (x,y,z) intoq the vertex buffer
 *
 *  @param coords GLfloat(x,y,z)
 *
 *  @return void
 */
 #include <stdlib.h>
 #include <time.h>
 #include <cglm/cglm.h>
 #include "../../include/base.h"
 #include "../../include/ui.h"
 #include "../../include/graphics.h"
 void graphics_draw_vertex (const int stack_id,
                           GLfloat x,
                           GLfloat y,
                           GLfloat z)
 {
    //g_printerr("stack_id is %d\n", stack_id);
    //g_printerr("stack_id is %d\n", stack_id);
    //g_printerr("graphic_stack is at %p\n", graphic_stack);
    //g_printerr("graphic_stack[stack_id] is at %p\n", graphic_stack + stack_id);
    volatile struct graphic_stack_t *stack = &graphic_stack[stack_id];
    //g_printerr("Currently stack->buffer_vertex_origin @ %p\n", stack->buffer_vertex_origin);
    //assert (stack->buffer_vertex_origin);
    stack->buffer_vertex_origin =
            g_realloc (stack->buffer_vertex_origin,
                       (stack->buffer_vertex_size + 3) * sizeof(GLfloat));
    //print_stack(stack_id);
    stack->buffer_vertex_origin[stack->buffer_vertex_size + 0] = x;
    stack->buffer_vertex_origin[stack->buffer_vertex_size + 1] = y;
    stack->buffer_vertex_origin[stack->buffer_vertex_size + 2] = z;
    stack->buffer_vertex_size += 3;
 }
 /*
 *  Writes values to describe a color (r,g,b) into the color buffer
 *
 *  @param color GLfloat(r,g,b)
 *
 *  @return void
 */
 void graphics_draw_color (const int stack_id,
                          GLfloat r,
                          GLfloat g,
                          GLfloat b)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    stack->buffer_colors_origin = g_realloc (stack->buffer_colors_origin,
                                     (stack->buffer_colors_size + 3) * sizeof(GLfloat));
    assert (stack->buffer_colors_origin);
    stack->buffer_colors_origin[stack->buffer_colors_size + 0] = r;
    stack->buffer_colors_origin[stack->buffer_colors_size + 1] = g;
    stack->buffer_colors_origin[stack->buffer_colors_size + 2] = b;
    stack->buffer_colors_size += 3;
 }
 /*
 *  Writes values to describe a line from a to b into the line buffer
 *
 *  @param coords GLuint (a,b)
 *
 *  @return void
 */
 void graphics_draw_line (const int stack_id,
                         GLuint a,
                         GLuint b)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    stack->buffer_lines_origin = g_realloc (stack->buffer_lines_origin,
                                    (stack->buffer_lines_size + 2) * sizeof(GLuint));
    assert (stack->buffer_lines_origin);
    stack->buffer_lines_origin[stack->buffer_lines_size + 0] = a;
    stack->buffer_lines_origin[stack->buffer_lines_size + 1] = b;
    stack->buffer_lines_size += 2;
 }
 /*
 *  Writes values to describe an (a,b,c) plan (triangle) into the plan buffer
 *
 *  @param coords GLuint (a,b,c)
 *
 *  @return void
 */
 void graphics_draw_plan (const int stack_id,
                         GLuint a,
                         GLuint b,
                         GLuint c)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    stack->buffer_plans_origin = g_realloc (stack->buffer_plans_origin,
                                    (stack->buffer_plans_size + 3) * sizeof(GLuint));
    assert (stack->buffer_plans_origin);
    stack->buffer_plans_origin[stack->buffer_plans_size + 0] = a;
    stack->buffer_plans_origin[stack->buffer_plans_size + 1] = b;
    stack->buffer_plans_origin[stack->buffer_plans_size + 2] = c;
    stack->buffer_plans_size += 3;
 }
 /*
 * Draws the current buffer to a gl_area
 *
 * @param   gl_area, ptr to the gl_area widget
 *
 * @return  void
 */
 void graphics_draw(const int stack_id)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    //g_printerr("[debug] graphics_draw() started\n");
    //print_stack(stack_id);
    GLint cur_viewport[4];
    glGetIntegerv(GL_VIEWPORT, cur_viewport);
    mat4 m = GLM_MAT4_IDENTITY_INIT;
    glm_rotate_x(m, glm_rad(stack->rotation_angles[X_AXIS]), m);
    glm_rotate_y(m, glm_rad(stack->rotation_angles[Y_AXIS]), m);
    glm_rotate_z(m, glm_rad(stack->rotation_angles[Z_AXIS]), m);
    mat4 v = GLM_MAT4_IDENTITY_INIT; // XXX define zoom and translations here ?
    mat4 p = GLM_MAT4_IDENTITY_INIT;
    //glm_ortho(-1.0f, +1.0f, -1.0f, +1.0f, -1.0f, +1.0f, p);
    glm_ortho_default((float)cur_viewport[2] / (float)cur_viewport[3], p);
    //glm_perspective_default((float)cur_viewport[2] / (float)cur_viewport[3], p);
    /* Use our shaders */
    glUseProgram(stack->program);
    glClearColor(0, 0, 0, 1);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    /* Update the "mvp" matrix we use in the shader */
    glUniformMatrix4fv(stack->m, 1, GL_FALSE, (float *)m);
    glUniformMatrix4fv(stack->v, 1, GL_FALSE, (float *)v);
    glUniformMatrix4fv(stack->p, 1, GL_FALSE, (float *)p);
    /* Use the vertices in our buffer */
    glEnableVertexAttribArray(0);
    glBindBuffer(GL_ARRAY_BUFFER, stack->position_buffer);
    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0,(void*)0);
    // couleurs
    glEnableVertexAttribArray(1);
    glBindBuffer(GL_ARRAY_BUFFER, stack->color_buffer);
    glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0,(void*)0);
    //glEnable(GL_DEPTH_TEST);
    glDrawElements(GL_LINES, stack->buffer_lines_size, GL_UNSIGNED_INT, stack->buffer_lines_origin);
    glDrawElements(GL_TRIANGLES, stack->buffer_plans_size, GL_UNSIGNED_INT, stack->buffer_plans_origin);
    /* We finished using the buffers and program */
    glDisableVertexAttribArray(0);
    glDisableVertexAttribArray(1);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glUseProgram(0);
    glFlush();
    //g_printerr("[debug] graphics_draw() ended\n");
 }
--- a/src/graphics/graphics.c
+++ b/src/graphics/graphics.c
@ -0,0 +1,328 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: GL functions
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <stdlib.h>
 #include <time.h>
 #include "../../include/base.h"
 #include "../../include/ui.h"
 #include "../../include/parsing.h"
 #include "../../include/graphics.h"
 #define TEST 0
 struct graphic_stack_t *graphic_stack = NULL;
 size_t graphic_stack_size = 0;
 int *free_stack_slot = NULL;
 size_t free_stack_slot_size = 0;
 /*
 * Prints verbose human-readable debug messages
 *
 * @param   source, XXX
 *          type, XXX
 *          id, XXX
 *          severity, XXX
 *          length, XXX
 *          msg, XXX
 *          data, XXX
 *
 * @return  void
 */
 static void graphics_debug_callback(GLenum source, GLenum type, GLuint id,
                                    GLenum severity, GLsizei length,
                                    const GLchar *msg, const void *data)
 {
    const char *errsource;
    const char *errtype;
    const char *errseverity;
    const GLubyte *string;
    GLenum code;
    switch (source) {
    case GL_DEBUG_SOURCE_API:               errsource = "API";              break;
    case GL_DEBUG_SOURCE_WINDOW_SYSTEM:     errsource = "WINDOW SYSTEM";    break;
    case GL_DEBUG_SOURCE_SHADER_COMPILER:   errsource = "SHADER COMPILER";  break;
    case GL_DEBUG_SOURCE_THIRD_PARTY:       errsource = "THIRD PARTY";      break;
    case GL_DEBUG_SOURCE_APPLICATION:       errsource = "APPLICATION";      break;
    case GL_DEBUG_SOURCE_OTHER:             errsource = "UNKNOWN";          break;
    default:                                errsource = "UNKNOWN";          break;
    }
    switch (type) {
    case GL_DEBUG_TYPE_ERROR:               errtype = "ERROR";              break;
    case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: errtype = "DEPRECATED BEHAVIOR";break;
    case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:  errtype = "UNDEFINED BEHAVIOR"; break;
    case GL_DEBUG_TYPE_PORTABILITY:         errtype = "PORTABILITY";        break;
    case GL_DEBUG_TYPE_PERFORMANCE:         errtype = "PERFORMANCE";        break;
    case GL_DEBUG_TYPE_OTHER:               errtype = "OTHER";              break;
    case GL_DEBUG_TYPE_MARKER:              errtype = "MARKER";             break;
    default:                                errtype = "UNKNOWN";            break;
    }
    switch (severity) {
    case GL_DEBUG_SEVERITY_HIGH:            errseverity = "CRITICAL";       break;
    case GL_DEBUG_SEVERITY_MEDIUM:          errseverity = "ERROR";          break;
    case GL_DEBUG_SEVERITY_LOW:             errseverity = "WARNING";        break;
    case GL_DEBUG_SEVERITY_NOTIFICATION:    errseverity = "INFO";           break;
    default:                                errseverity = "UNKNOWN";        break;
    }
    code = glGetError();
    string = gluErrorString(code);
    g_printerr("[%s] %s (%s) from %s: %s\n",
           errseverity, string, errtype, errsource, msg);
 }
 /* -------------------------------------------------------------------------- */
 /*
 * Initializes graphical stack
 *
 * @param   gl_area, ptr to the gl_area widget
 *
 * @return  id if initialized
 */
 int graphics_init(void *error_buffer)
 {
    int cur_id = 0;
    struct graphic_stack_t *stack;
    /* g_printerr("[debug] graphics_init()\n"); */
    if (graphic_stack == NULL) {
        graphic_stack = g_malloc0(sizeof(struct graphic_stack_t));
        graphic_stack_size = 1;
        /* g_printerr("[debug] graphics_init(): init graphic_stack @ %p\n", graphic_stack); */
    } else {
        // Check if there are free slots
        if (free_stack_slot_size) {
            // We get the last free slot registered
            cur_id = free_stack_slot[free_stack_slot_size-1];
            // Unregister it (ofc)
            free_stack_slot = g_realloc(free_stack_slot,
                                        free_stack_slot_size-- *
                                        sizeof(int));
        } else {
            cur_id = graphic_stack_size;
            graphic_stack = g_realloc(graphic_stack,
                                      ++graphic_stack_size *
                                        sizeof(struct graphic_stack_t));
        }
    }
    memset(&graphic_stack[cur_id], 0, sizeof(struct graphic_stack_t));
    /* g_printerr("[debug] graphics_init() : graphic_stack (@0x%p) has %ld elements\n", */
    /*            graphic_stack, */
    /*            graphic_stack_size); */
    stack = &graphic_stack[cur_id];
    stack->id = cur_id;
    glEnable(GL_DEBUG_OUTPUT);
    glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
    glEnable(GL_MULTISAMPLE);
    if (!graphics_init_shaders(cur_id))
        return -1;
    //print_stack(cur_id);
    graphics_init_buffers(cur_id);
    glDebugMessageCallback(graphics_debug_callback, NULL);
    //print_stack(cur_id);
    return cur_id;
 }
 /*
 * Shutdowns a gl_area
 *
 * @param   gl_area, ptr to the gl_area widget
 *
 * @return  true if success
 */
 bool graphics_shutdown(const int id, void *error_buffer)
 {
    struct graphic_stack_t *stack;
    if (id >= graphic_stack_size ||
        graphic_stack_size == 0 ||
        graphic_stack == NULL)
        return false;
    stack = &graphic_stack[id];
    //XXX
    free(stack->arrows_ptr);
    stack->arrows_ptr = NULL;
    stack->arrows_nb = 0;
    glDeleteBuffers(1, &stack->position_buffer);
    glDeleteBuffers(1, &stack->color_buffer);
    glDeleteProgram(stack->program);
    g_free(stack->buffer_vertex_origin);
    g_free(stack->buffer_colors_origin);
    g_free(stack->buffer_lines_origin);
    g_free(stack->buffer_plans_origin);
    if (graphic_stack_size == 1) {
        free(graphic_stack);
        graphic_stack = NULL;
        graphic_stack_size = 0;
    } else {
        memset(&graphic_stack[id], 0, sizeof(struct graphic_stack_t));
        free_stack_slot = g_realloc(free_stack_slot,
                                    ++free_stack_slot_size *
                                    sizeof(int));
        free_stack_slot[free_stack_slot_size-1] = id;
    }
    return true;
 }
 /* TODO
 * #pragma omp parallel schedule(static, 12)
 * void  __attribute__((optimize("no-unroll-loops"))) main_test_graphics (void) {}
 *
 //  assert : space dimensions (x,y,z) > 0
 //  assert : arrows localization within space and sites
 //  assert : no more than one arrow per address
 //  notify : weights are replaced, NOT added (could be !)
 *
 * Init space and arrows (= initial state)
 * and allows ulterior creations, suppressions or modifications of the arrows[] array
 *
 * draws the space()
 * triggers set_arrows() that modifies the list () and draws arrows
 *
 *  Initialisation du générateur pseudo-aléatoire
 *  Attention, les vertex centraux de chaque unité d'espace (cube)
 *          peuvent être redondants (max 6)
 */
 void graphics_model_setup (const int stack_id)
 {
    /*------------------------------------------------------------------------*/
    /*         I N I T I A L    D A T A   S P E C I F I C A T I O N           */
    /*------------------------------------------------------------------------*/
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    char dimension;
    long space_X;
    long space_Y;
    long space_Z;
    long announced_arrows_nb;
    int density_max;
    char multiplicity;
    dimension = model_get_dim();
    g_print("[GRAPH DEBUG] dim = %d\n", dimension);
    space_X = 1;
    space_Y = 1;
    space_Z = 1;
    switch(dimension) {
    case 3:
        space_Z = model_get_dim_value("z");
    case 2:
        space_Y = model_get_dim_value("y");
        // even in 1D, we must be able to see a grid
        if (!space_Y)
            space_Y = 1;
    case 1:
        space_X = model_get_dim_value("x");
        if (!space_X)
            space_X = 1;
    default:
        break;
    }
    g_print("[GRAPH DEBUG] x = %ld\n", space_X);
    g_print("[GRAPH DEBUG] y = %ld\n", space_Y);
    g_print("[GRAPH DEBUG] z = %ld\n", space_Z);
    density_max = space_X * space_Y * space_Z;
    stack->arrows_nb = 0;
    multiplicity = model_get_multiplicity();
    g_print("[GRAPH DEBUG] site_multiplicity = %ld\n", multiplicity);
    /*------------------------------------------------------------------------*/
    /*                       S P A C E    D R A W I N G                       */
    /*------------------------------------------------------------------------*/
    draw_space_ridges_vertex (stack_id, stack->buffer_vertex_size,
                              space_X, space_Y, space_Z);
    draw_space_ridges_lines (stack_id);
    draw_grids_on_space_faces_vertex (stack_id, space_X, space_Y, space_Z);
    draw_grids_on_space_faces_lines (stack_id, stack->buffer_lines_size,
                                     space_X, space_Y, space_Z);
    stack->buffer_vertex_0_arrow = stack->buffer_vertex_size;
    stack->buffer_colors_0_arrow = stack->buffer_colors_size;
    stack->buffer_lines_0_arrow = stack->buffer_lines_size;
    /*------------------------------------------------------------------------*/
    /*                     A R R O W S    D R A W I N G                       */
    /*------------------------------------------------------------------------*/
    char state_id[30] = {0};
    struct arrow_t arrow = {0};
    assert(model_get_next_state(&state_id));
    g_print("[GRAPH DEBUG] first state is = %s\n", state_id);
    announced_arrows_nb = model_get_state_arrows_count(state_id);
    g_print("[GRAPH DEBUG] announced_arrows_nb is = %ld\n", announced_arrows_nb);
    while (model_get_next_arrow(&arrow, &state_id, dimension)) {
        g_print("[GRAPH DEBUG] cur arrow has x = %d\n", arrow.x);
        stack->arrows_nb =
            set_arrow (stack_id, stack->arrows_nb, space_X, space_Y, space_Z,
                               arrow.load,                   //    load
                               arrow.site,          //    site
                               arrow.x,    //    x
                               arrow.y,    //    y
                               arrow.z);   //    z
    }
    if (stack->arrows_nb != announced_arrows_nb)
        g_printerr("ARGH : all the arrows have not been parsed !\n");
 }
--- a/src/graphics/grid.c
+++ b/src/graphics/grid.c
@ -0,0 +1,162 @@
 /*
 *      Gem-graph
 *
 *      Desc: OpenGL grid functions
 *
 *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <stdlib.h>
 #include <time.h>
 #include "../../include/base.h"
 #include "../../include/ui.h"
 #include "../../include/graphics.h"
 int draw_space_ridges_vertex (const int stack_id,
                              long offset_vertex,
                              long x,
                              long y,
                              long z)
 {
    GLfloat max = fmax(x, y);  max = fmax(max, z);
    graphics_draw_vertex (stack_id, offset_vertex - x / max, offset_vertex - y / max, - z / max);
    graphics_draw_vertex (stack_id, offset_vertex + x / max, offset_vertex - y / max, - z / max);
    graphics_draw_vertex (stack_id, offset_vertex - x / max, offset_vertex + y / max, - z / max);
    graphics_draw_vertex (stack_id, offset_vertex - x / max, offset_vertex - y / max, + z / max);
    graphics_draw_vertex (stack_id, offset_vertex + x / max, offset_vertex + y / max, - z / max);
    graphics_draw_vertex (stack_id, offset_vertex + x / max, offset_vertex - y / max, + z / max);
    graphics_draw_vertex (stack_id, offset_vertex - x / max, offset_vertex + y / max, + z / max);
    graphics_draw_vertex (stack_id, offset_vertex + x / max, + y / max, + z / max);
    graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
    graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
    graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
    graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
    graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
    graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
    graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
    graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
    return 8;
 }
 int draw_space_ridges_lines (const int stack_id)
 {
    graphics_draw_line (stack_id, 0, 1); graphics_draw_line (stack_id, 7, 4);
    graphics_draw_line (stack_id, 0, 2); graphics_draw_line (stack_id, 7, 5);
    graphics_draw_line (stack_id, 0, 3); graphics_draw_line (stack_id, 7, 6);
    graphics_draw_line (stack_id, 1, 4); graphics_draw_line (stack_id, 2, 4);
    graphics_draw_line (stack_id, 1, 5); graphics_draw_line (stack_id, 3, 5);
    graphics_draw_line (stack_id, 2, 6); graphics_draw_line (stack_id, 3, 6);
    return 12;
 }
 long draw_grids_on_space_faces_vertex (const int stack_id,
                                       long x,
                                       long y,
                                       long z)
 {
    float i, max = fmax(x, y); max = fmax(max, z);
    for (i = 1; i < x; i++) {
        graphics_draw_vertex (stack_id, (2 * i / x - 1) * x / max, - y / max, - z / max);
        graphics_draw_vertex (stack_id, (2 * i / x - 1) * x / max, - y / max,   z / max);
        graphics_draw_vertex (stack_id, (2 * i / x - 1) * x / max,   y / max,   z / max);
        graphics_draw_vertex (stack_id, (2 * i / x - 1) * x / max,   y / max, - z / max);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
    }
    /* offset_vertex += (x - 1) * 4;     */ /* offset_colors += (x - 1) * 4; */
    for (i = 1; i < y; i++) {
        graphics_draw_vertex (stack_id, - x / max, (2 * i / y - 1) * y / max, - z / max);
        graphics_draw_vertex (stack_id, - x / max, (2 * i / y - 1) * y / max,   z / max);
        graphics_draw_vertex (stack_id, x / max, (2 * i / y - 1) * y / max,   z / max);
        graphics_draw_vertex (stack_id, x / max, (2 * i / y - 1) * y / max, - z / max);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
    }
    /* offset_vertex += (y - 1) * 4;     */ /* offset_colors += (y - 1) * 4; */
    for (i = 1; i < z; i++) {
        graphics_draw_vertex (stack_id, - x / max, - y / max, (2 * i / z - 1) * z / max);
        graphics_draw_vertex (stack_id, - x / max,   y / max, (2 * i / z - 1) * z / max);
        graphics_draw_vertex (stack_id, x / max,   y / max, (2 * i / z - 1) * z / max);
        graphics_draw_vertex (stack_id, x / max, - y / max, (2 * i / z - 1) * z / max);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
        graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
    }
    return (x + y + z - 3) * 3;
 }
 long draw_grids_on_space_faces_lines (const int stack_id,
                                      long offset_vertex,
                                      long x,
                                      long y,
                                      long z)
 {
    offset_vertex = offset_vertex / 3;
    for (int i = 0; i < x - 1; i ++) {
            graphics_draw_line (stack_id, offset_vertex + i * 4 + 1,  offset_vertex + i * 4 + 2);
            graphics_draw_line (stack_id, offset_vertex + i * 4 + 2,  offset_vertex + i * 4 + 3);
    }
    offset_vertex += (x - 1) * 4;
    for (int i = 0; i < y - 1; i ++) {
            graphics_draw_line (stack_id, offset_vertex + i * 4 + 2,  offset_vertex + i * 4 + 3);
            graphics_draw_line (stack_id, offset_vertex + i * 4 + 3,  offset_vertex + i * 4 + 0);
    }
    offset_vertex += (y - 1) * 4;
    for (int i = 0; i < z - 1; i ++) {
            graphics_draw_line (stack_id, offset_vertex + i * 4 + 0,  offset_vertex + i * 4 + 1);
            graphics_draw_line (stack_id, offset_vertex + i * 4 + 3,  offset_vertex + i * 4 + 0);
    }
    return (x + y + z - 3) * 4;
 }
--- a/src/graphics/init.c
+++ b/src/graphics/init.c
@ -0,0 +1,175 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: GL functions
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 /* -------------------------------------------------------------------------- */
 #include <stdlib.h>
 #include <time.h>
 #include "../../include/base.h"
 #include "../../include/ui.h"
 #include "../../include/graphics.h"
 /* Initializes the buffer of a gl_area
 * Calls according to the user preferences
 * @param   gl_area, ptr to the gl_area widget
 * @return  void
 */
 void graphics_init_buffers(const int stack_id)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    //XXX
    graphics_model_setup(stack_id);
    GLuint vao, vertex_buffer, color_buffer;
    glGenBuffers(1, &vertex_buffer);
    glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
    glBufferData(GL_ARRAY_BUFFER,
                 stack->buffer_vertex_size *
                    sizeof(stack->buffer_vertex_origin[0]),
                 stack->buffer_vertex_origin,
                 GL_STATIC_DRAW);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    // colors
    glGenBuffers(1, &color_buffer);
    glBindBuffer(GL_ARRAY_BUFFER, color_buffer);
    glBufferData(GL_ARRAY_BUFFER, stack->buffer_colors_size *
                    sizeof(stack->buffer_colors_origin[0]),
                 stack->buffer_colors_origin,
                 GL_STATIC_DRAW);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    // We only use one VAO, so we always keep it bound
    glGenVertexArrays(1, &vao);
    glBindVertexArray(vao);
    stack->vao = vao;
    stack->position_buffer = vertex_buffer;
    stack->color_buffer = color_buffer;
 }
 /*
 * Initializes the shaders of a gl_area and link them to a program
 *
 * @param   gl_area, ptr to the gl_area widget
 *
 * @return  true if initialized
 */
 bool graphics_init_shaders(const int stack_id)
 {
    struct graphic_stack_t *stack = &graphic_stack[stack_id];
    char *vertex_shader;
    char *fragment_shader;
    int status;
    GLuint vertex, fragment;
    GLuint program = 0;
    GLuint m = 0;
    GLuint v = 0;
    GLuint p = 0;
    // Load vertex shader file
    vertex_shader = read_file(VERTEX_SHADER_FILE);
    if (vertex_shader == NULL)
        return false;
    vertex = create_shader(stack_id, GL_VERTEX_SHADER, vertex_shader);
    if(vertex == 0) {
        stack->program = 0;
        g_free(vertex_shader);
        return false;
    }
    // Load fragment shader file
    fragment_shader = read_file(FRAG_SHADER_FILE);
    if (fragment_shader == NULL)
        return false;
    fragment = create_shader(stack_id, GL_FRAGMENT_SHADER, fragment_shader);
    if(fragment == 0) {
        glDeleteShader(vertex);
        stack->program = 0;
        g_free(vertex_shader);
        g_free(fragment_shader);
        return false;
    }
    // Link shaders to program
    program = glCreateProgram();
    glAttachShader(program, vertex);
    glAttachShader(program, fragment);
    glLinkProgram(program);
    glGetProgramiv(program, GL_LINK_STATUS, &status);
    if(status == GL_FALSE) {
        int log_len;
        char *buffer;
        glGetProgramiv(program, GL_INFO_LOG_LENGTH, &log_len);
        buffer = g_malloc(log_len + 1);
        assert(buffer);
        glGetProgramInfoLog(program, log_len, NULL, buffer);
        g_warning("Linking failure:\n%s", buffer);
        g_free(buffer);
        glDeleteProgram(program);
        program = 0;
        glDeleteShader(vertex);
        glDeleteShader(fragment);
        g_free(vertex_shader);
        g_free(fragment_shader);
        return false;
    }
    /* Get the location of the "mvp" uniform */
    m = glGetUniformLocation(program, "model_matrix");
    v = glGetUniformLocation(program, "view_matrix");
    p = glGetUniformLocation(program, "projection_matrix");
    glDetachShader(program, vertex);
    glDetachShader(program, fragment);
    glDeleteShader(vertex);
    glDeleteShader(fragment);
    stack->program = program;
    stack->m = m;
    stack->v = v;
    stack->p = p;
    g_free(vertex_shader);
    g_free(fragment_shader);
    return true;
 }
--- a/src/graphics/shaders/shader.frag
+++ b/src/graphics/shaders/shader.frag
@ -0,0 +1,9 @@
 #version 330 core
 in vec4 color;
 out vec4 out_frag_color;
 void main(void)
 {
 	out_frag_color = color;
 }
--- a/src/graphics/shaders/shader.vert
+++ b/src/graphics/shaders/shader.vert
@ -0,0 +1,20 @@
 #version 330 core
 uniform mat4 projection_matrix;
 uniform mat4 model_matrix;
 uniform mat4 view_matrix;
 layout(location=0) in vec3 in_position;
 layout(location=1) in vec3 in_color;
 out vec4 color;
 void main(void)
 {
    float zoom = 1.1f, chrominance = 1, luminance = 1;
    gl_Position =
    	projection_matrix * view_matrix * model_matrix * vec4(in_position, zoom);
    color = vec4 (chrominance * in_color.rgb, luminance);
 }
 //	https://learnopengl.com/Getting-started/Shaders
--- a/src/main.c
+++ b/src/main.c
@ -0,0 +1,47 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: Main file
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <unistd.h>
 #include <gtk-4.0/gtk/gtk.h>
 #include "../include/base.h"
 #include "../include/ui.h"
 /* -------------------------------------------------------------------------- */
 int main(int argc, char **argv)
 {
    g_autoptr(GemGraphClientApplication) app = NULL;
    int res;
    // bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
 	// bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 	// textdomain (GETTEXT_PACKAGE);
    app = gem_graph_client_application_new("org.alec.gemgraph",
                                           G_APPLICATION_DEFAULT_FLAGS);
    res = g_application_run(G_APPLICATION(app), argc, argv);
    return res;
 }
--- a/src/parsing/parsing.c
+++ b/src/parsing/parsing.c
@ -0,0 +1,483 @@
 /*
 *      Gem-graph client
 *
 *      Desc: Model parsing functions
 *
 *  Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
 *  Copyright (C) 2024 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdbool.h>
 #include <assert.h>
 #include <limits.h>
 #include <libxml/tree.h>
 #include <libxml/parser.h>
 #include <libxml/xmlreader.h> // http://xmlsoft.org/examples/#parse1.c
                              // https://gnome.pages.gitlab.gnome.org/libxml2/devhelp/general.html
 #include "../../include/base.h"
 #define READ_SITE 1 << 0
 #define READ_WEIGHT 1 << 1
 #define READ_X 1 << 2
 #define READ_Y 1 << 3
 #define READ_Z 1 << 4
 #define SUCCESSFUL_READ_ARROW_X (READ_SITE | READ_WEIGHT | READ_X)
 #define SUCCESSFUL_READ_ARROW_XY (READ_SITE | READ_WEIGHT | READ_X | READ_Y)
 #define SUCCESSFUL_READ_ARROW_XYZ (READ_SITE | READ_WEIGHT | READ_X | READ_Y | READ_Z)
 static xmlDocPtr model;
 static xmlHashTablePtr model_hashtable;
 bool model_init(const char *content, size_t length, const char *basename)
 {
    xmlNode *node;
    /*
     * this initialize the library and check potential ABI mismatches
     * between the version it was compiled for and the actual shared
     * library used.
     */
    LIBXML_TEST_VERSION
 	model = xmlReadMemory(content, length, basename, NULL, 0);
 	if (model == NULL ) {
 		return false;
 	}
 	node = xmlDocGetRootElement(model);
 	if (node == NULL) {
 		g_printerr("Empty XML model !\n");
 		xmlFreeDoc(model);
 		return false;
 	}
 	if (xmlStrcmp(node->name, (xmlChar *) "gem-graph-model")) {
 		g_printerr("document of the wrong type, root node != gem-graph-model\n");
 		xmlFreeDoc(model);
 		return false;
 	}
    model_hashtable = xmlHashCreate(0);
    if (model_hashtable == NULL) {
 		g_printerr("Can't create model hash table !\n");
 		xmlFreeDoc(model);
 		return false;
    }
    return true;
 }
 bool model_shutdown(void)
 {
    xmlFreeDoc(model);
    xmlHashFree(model_hashtable, NULL);
    // Cleanup function for the XML library
    xmlCleanupParser();
    // This is to debug memory for regression tests
    xmlMemoryDump();
    return true;
 }
 /******************************************************************************/
 static inline xmlNodePtr getNextChild(xmlNodePtr node, xmlChar *last)
 {
    while (node != NULL && xmlStrcmp(node->name, last)) {
        // //printf("   <>--- line n°%lu   <%s>\n", xmlGetLineNo(node), node->name);
        node = node->next;
    }
    return node;
 }
 static inline xmlChar* splitStrAtSlash(xmlChar *toSplit)
 {
    toSplit = (xmlChar *)xmlStrchr(toSplit, '/');
    toSplit = xmlStrsub (toSplit, 1, xmlStrlen(toSplit));
    return toSplit;
 }
 static inline xmlChar* getFirstTag(xmlChar *path)
 {
    xmlChar *preop = path;
    path = (xmlChar *)xmlStrchr(path, '/');
    path = xmlStrsub (path, 1, xmlStrlen(path));
    //printf("%s = %s + / + %s\n", preop,\
    xmlStrsub (preop, 0, xmlStrlen(preop) - xmlStrlen(path) - 1), path);
    return  xmlStrsub (preop, 0, xmlStrlen(preop) - xmlStrlen(path) - 1);
 }
 static inline xmlChar* getLastTag(xmlChar *path)
 {
    while ((ulong)xmlStrchr (path, '/'))
        path = splitStrAtSlash((xmlChar *)path);
    // //printf("last tag in the path = <%s>\n", path);
    return path; // which is no more the given path but only its last tag !
 }
 /******************************************************************************/         
 static xmlNodePtr model_get_node(xmlChar *path)
 {
    xmlNodePtr node;
    xmlChar *extrait;
    xmlChar *reste, *last, *affich;
    // Lookup for node from path in hash table
    node = xmlHashLookup(model_hashtable, path);
    // Found a node in hash table
    if (node) {
        return node;
    // no node found in hash table
    } else {
        reste = path;
        affich = reste;
        last = getLastTag(reste);
        node = xmlDocGetRootElement(model);
        while (xmlStrchr (reste, '/')) {
            extrait = getFirstTag(reste);
            reste = splitStrAtSlash((xmlChar *)reste);
            node = node->xmlChildrenNode;
            node = getNextChild(node, extrait);
        }
        if(node && xmlStrcmp(node->name, last)) {
            node = node->xmlChildrenNode;
            while (node && xmlStrcmp(node->name, last)) {
                node = node->next;
            }
            xmlHashAddEntry (model_hashtable, path, node);
        }
        return node;
    }
    return NULL;
 }
 /******************************************************************************/         
 static inline long model_get_node_long_attrib(xmlNodePtr node, char *id)
 {
    xmlAttr *attribute;
    xmlChar* value;
    long ret_value;
    if (node && node->properties) {
        attribute = node->properties;
        while(attribute && attribute->name && attribute->children) {
            if (!xmlStrcmp(attribute->name, (const xmlChar *)id)) {
                value = xmlNodeListGetString(node->doc, attribute->children, 1);
                ret_value = strtol((char *)value, NULL, 0);
                xmlFree(value);
                return ret_value;
            }
            attribute = attribute->next;
        }
    }
    return 0;
 }
 static inline bool model_get_node_str_attrib(xmlNodePtr node,
                                             char *id,
                                             char *dest)
 {
    xmlAttr *attribute;
    xmlChar* value;
    if (node && node->properties) {
        attribute = node->properties;
        while(attribute && attribute->name && attribute->children) {
            if (!xmlStrcmp(attribute->name, (const xmlChar *)id)) {
                value = xmlNodeListGetString(node->doc, attribute->children, 1);
                strcpy(dest, value);
                xmlFree(value);
                return true;
            }
            attribute = attribute->next;
        }
    }
    return false;
 }
 /******************************************************************************/
 char model_get_dim(void)
 {
    xmlAttr *attribute;
    xmlChar* value;
    xmlNodePtr node = model_get_node(
                        (xmlChar *)"parameters/space-param/dimension");
    if (xmlHasProp (node, (xmlChar *) "z")) return 3;
    if (xmlHasProp (node, (xmlChar *) "y")) return 2;
    if (xmlHasProp (node, (xmlChar *) "x")) return 1;
    return 0;
 }
 long model_get_dim_value(const char *axis)
 {
    xmlAttr *attribute;
    xmlChar *value;
    long ret_value;
    xmlNodePtr node = model_get_node(
                        (xmlChar *)"parameters/space-param/dimension");
    return model_get_node_long_attrib(node, axis);
 }
 char model_get_multiplicity(void)
 {
    xmlAttr *attribute;
    xmlChar* value;
    xmlNodePtr node = model_get_node(
                        (xmlChar *)"parameters/space-param/site_multiplicity");
    if (node->children)
        if (node->children->content)
            return (char)strtol((char *)node->children->content, NULL, 0);
    return 0;
 }
 bool model_get_next_state(char *new_state_id)
 {
    static xmlNodePtr cur_node = NULL;
    xmlAttr *attribute;
    xmlChar *value;
    if (cur_node == NULL) {
        // Get first state
        cur_node = model_get_node((xmlChar *)"savedstates/state");
    } else {
        // Get next state
        if (cur_node->next)
            cur_node = cur_node->next;
        else
            return false;
    }
    // Lookup in properties
    if (model_get_node_str_attrib(cur_node, "id", new_state_id))
        return true;
    cur_node = NULL;
    return false;
 }
 long model_get_state_arrows_count(const char *state_id)
 {
    xmlNodePtr cur_node = NULL;
    xmlAttr *attribute;
    long value = 0;
    bool found = false;
    char temp_char[25];
    uint check = 0; // bit field checker
    //printf("NEW CALL : cur_node = %p\n", cur_node);
    assert(state_id);
    // Get first state node
    cur_node = model_get_node((xmlChar *)"savedstates/state");
    // Lookup in properties
    while (cur_node && cur_node->properties) {
        attribute = cur_node->properties;
        // Look for the id attribute
        if (model_get_node_str_attrib(cur_node, "id", &temp_char)) {
            if (!xmlStrcmp(temp_char, (const xmlChar *)state_id)) {
                found = true;
                break;
            }
        }
        cur_node = cur_node->next;
    }
    // Check if the state has been found
    if (!found) {
        cur_node = NULL;
        return -1;
    }
    // Count arrows
    if (cur_node->children) {
        cur_node = cur_node->children;
        while (cur_node) {
            if (!xmlStrcmp(cur_node->name, (const xmlChar *)"arrow"))
                value++;
            cur_node = cur_node->next;
        }
    } else {
        return -1;
    }
    return value;
 }
 bool model_get_next_arrow(struct arrow_t *new_arrow,
                          const char *state_id,
                          char dimension)
 {
    static xmlNodePtr cur_node = NULL;
    xmlAttr *attribute;
    xmlChar *value;
    bool found = false;
    char temp_char[25];
    uint check = 0; // bit field checker
    //printf("NEW CALL : cur_node = %p\n", cur_node);
    assert(new_arrow);
    assert(state_id);
    if (cur_node == NULL) {
        // Get first state node
        cur_node = model_get_node((xmlChar *)"savedstates/state");
        // Lookup in properties
        while (cur_node && cur_node->properties) {
            attribute = cur_node->properties;
            // Look for the id attribute
            if (model_get_node_str_attrib(cur_node, "id", &temp_char)) {
                if (!xmlStrcmp(temp_char, (const xmlChar *)state_id)) {
                    found = true;
                    break;
                }
            }
            cur_node = cur_node->next;
        }
        // Check if the state has been found
        if (!found) {
            cur_node = NULL;
            return false;
        }
        // Get first arrow
        if (cur_node->children) {
            cur_node = cur_node->children;
            found = false;
            while (cur_node && cur_node->name) {
                if (!xmlStrcmp(cur_node->name, (const xmlChar *)"arrow")) {
                    found = true;
                    break;
                }
                cur_node = cur_node->next;
            }
        }
        // Check if the state has been found
        if (!found) {
            cur_node = NULL;
            return false;
        }
    } else {
        // Get next arrow
        found = false;
        while (cur_node->next) {
            cur_node = cur_node->next;
            if (!xmlStrcmp(cur_node->name, (const xmlChar *)"arrow")) {
                found = true;
                break;
            }
        }
        // Check if the state has been found
        if (!found) {
            cur_node = NULL;
            return false;
        }
    }
    //printf("DURING CALL : cur_node = %p\n", cur_node);
    //printf("DURING CALL : cur_node->name = %s\n", cur_node->name);
    // Lookup in properties
    if (cur_node && cur_node->properties) {
        attribute = cur_node->properties;
        while(attribute && attribute->name && attribute->children) {
            //printf("attr name : %s\n", attribute->name);
            if (!xmlStrcmp(attribute->name, (const xmlChar *)"site")) {
                value = xmlNodeListGetString(cur_node->doc, attribute->children, 1);
                new_arrow->site = strtol((char *)value, NULL, 0);
                xmlFree(value);
                check |= READ_SITE;
            }
            if (!xmlStrcmp(attribute->name, (const xmlChar *)"weight")) {
                value = xmlNodeListGetString(cur_node->doc, attribute->children, 1);
                new_arrow->load = strtol((char *)value, NULL, 0);
                xmlFree(value);
                check |= READ_WEIGHT;
            }
            if (!xmlStrcmp(attribute->name, (const xmlChar *)"x")) {
                value = xmlNodeListGetString(cur_node->doc, attribute->children, 1);
                new_arrow->x = strtol((char *)value, NULL, 0);
                xmlFree(value);
                check |= READ_X;
            }
            if (!xmlStrcmp(attribute->name, (const xmlChar *)"y")) {
                value = xmlNodeListGetString(cur_node->doc, attribute->children, 1);
                new_arrow->y = strtol((char *)value, NULL, 0);
                xmlFree(value);
                check |= READ_Y;
            }
            if (!xmlStrcmp(attribute->name, (const xmlChar *)"z")) {
                value = xmlNodeListGetString(cur_node->doc, attribute->children, 1);
                new_arrow->z = strtol((char *)value, NULL, 0);
                xmlFree(value);
                check |= READ_Z;
            }
            attribute = attribute->next;
        }
        switch(dimension) {
        case 3:
            return (bool)(check & SUCCESSFUL_READ_ARROW_XYZ);
        case 2:
            return (bool)(check & SUCCESSFUL_READ_ARROW_XY);
        case 1:
            return (bool)(check & SUCCESSFUL_READ_ARROW_X);
        }
    }
    cur_node = NULL;
    return false;
 }
--- a/src/ui/.gitkeep
+++ b/src/ui/.gitkeep
--- a/src/ui/application.c
+++ b/src/ui/application.c
@ -0,0 +1,150 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: User interface functions
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "../../include/base.h"
 #include "../../include/ui.h"
 struct _GemGraphClientApplication
 {
    GtkApplication parent_instance;
 };
 G_DEFINE_TYPE (GemGraphClientApplication,
               gem_graph_client_application,
               GTK_TYPE_APPLICATION)
 static GemGraphClientApplication *application;
 /* -------------------------------------------------------------------------- */
 void ui_enable_action(const char *name) {
    g_simple_action_set_enabled(
    (GSimpleAction *)g_action_map_lookup_action(
                            G_ACTION_MAP(application),
                            name),
    true);
 }
 void ui_disable_action(const char *name) {
    g_simple_action_set_enabled(
    (GSimpleAction *)g_action_map_lookup_action(
                            G_ACTION_MAP(application),
                            name),
    false);
 }
 /*
 *  Window actual presentation on screen
 *
 */
 static void gem_graph_client_application_activate(GApplication *app)
 {
    GtkWindow *window;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(app));
    window = gtk_application_get_active_window(GTK_APPLICATION (app));
    if (window == NULL)
    window = g_object_new(GEM_GRAPH_CLIENT_TYPE_WINDOW,
                           "application", app,
                           NULL);
    ui_set_stack(HOME_MODE);
    gtk_window_present(window);
 }
 /*
 *  Action records are registered here
 *
 */
 static void gem_graph_client_application_init(GemGraphClientApplication *self)
 {
    g_action_map_add_action_entries(G_ACTION_MAP(self),
                                   app_actions,
                                   G_N_ELEMENTS(app_actions),
                                   self);
    // Setup shortcuts
    gtk_application_set_accels_for_action(GTK_APPLICATION(self),
                                "app.quit",
                                (const char *[]) { "<primary>q", NULL });
    gtk_application_set_accels_for_action(GTK_APPLICATION(self),
                                "app.editmode",
                                (const char *[]) { "<primary>e", NULL });
    gtk_application_set_accels_for_action(GTK_APPLICATION(self),
                                "app.runmode",
                                (const char *[]) { "<primary>r", NULL });
    gtk_application_set_accels_for_action(GTK_APPLICATION(self),
                                "app.presentmode",
                                (const char *[]) { "<primary>p", NULL });
    gtk_application_set_accels_for_action(GTK_APPLICATION(self),
                                "app.savefile",
                                (const char *[]) { "<primary>s", NULL });
    application = self;
    //
    // Disable unneeded/inoperant actions
    //
    ui_disable_action("savefile");
    ui_disable_action("closefile");
    ui_disable_action("editmode");
    ui_disable_action("runmode");
    ui_disable_action("presentmode");
    ui_disable_action("togglesidebar");
 }
 void ui_send_notification(const char *message)
 {
    g_print("NOTIFICATION: %s\n", message);
    g_application_send_notification(G_APPLICATION(application),
                                        "notification",
                                        g_notification_new(message)
                                    );
 }
 /* -------------------------------------------------------------------------- */
 static void gem_graph_client_application_class_init(
                                        GemGraphClientApplicationClass *klass)
 {
    GApplicationClass *app_class = G_APPLICATION_CLASS(klass);
    app_class->activate = gem_graph_client_application_activate;
 }
 GemGraphClientApplication *gem_graph_client_application_new(
                                                    const char *application_id,
                                                    GApplicationFlags flags)
 {
    g_return_val_if_fail(application_id != NULL, NULL);
    return g_object_new(GEM_GRAPH_CLIENT_TYPE_APPLICATION,
                       "application-id", application_id,
                       "flags", flags,
                       NULL);
 }
--- a/src/ui/bac_a_sable.ui
+++ b/src/ui/bac_a_sable.ui
@ -0,0 +1,37 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <!-- Created with Cambalache 0.14.0 -->
 <interface>
  <!-- interface-name gem-graph.ui -->
  <requires lib="gtk" version="4.6"/>
  <template class="GemGraphClientWindow" parent="GtkApplicationWindow">
    <property name="icon-name">application-x-executable</property>
    <property name="title">WIP</property>
    <child>
      <object class="GtkBox">
        <child>
          <object class="GtkBox">
            <child>
              <object class="GtkGLArea" id="run_glarea"/>
            </child>
          </object>
        </child>
        <child>
          <object class="GtkBox" id="run_controls">
            <property name="margin-bottom">50</property>
            <property name="margin-top">50</property>
            <property name="orientation">horizontal</property>
          </object>
        </child>
        <child>
          <object class="GtkBox" id="glarea_controls"/>
        </child>
      </object>
    </child>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="main_titlebar"/>
    </child>
    <style>
      <class name="devel"/>
    </style>
  </template>
 </interface>
--- a/src/ui/events.c
+++ b/src/ui/events.c
@ -0,0 +1,369 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: User interface functions
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <stdio.h>
 #include "../../include/base.h"
 #include "../../include/graphics.h"
 #include "../../include/parsing.h"
 #include "../../include/ui.h"
 void on_about_action(GSimpleAction *action,
                     GVariant *parameter,
                     gpointer user_data)
 {
    static const char *authors[] = {    "Adrien Bourmault (neox@a-lec.org)",
                                        "Jean Sirmai (jean@a-lec.org)",
                                        "Arthur Menges (arthur.menges@a-lec.org)",
                                        NULL};
    GemGraphClientApplication *self = user_data;
    GtkWindow *window = NULL;
    g_assert (GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    window = gtk_application_get_active_window(GTK_APPLICATION (self));
    gtk_show_about_dialog(window,
                         "program-name", "Gem-graph",
                         "logo-icon-name", "application-x-executable",
                         "authors", authors,
                         "version", "0.1.0",
                         "copyright", "Copyright © 2023 Libre en Communs",
                         NULL);
 }
 void on_quit_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    g_application_quit(G_APPLICATION(self));
 }
 void on_preferences_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    ui_send_internal_notification("Not implemented !");
 }
 void on_togglesidebar_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    ui_toggle_sidebar();
 }
 void on_editmode_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    ui_set_stack(EDIT_MODE);
 }
 void on_runmode_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    ui_set_stack(RUN_MODE);
 }
 void on_presentmode_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    ui_set_stack(PRESENTATION_MODE);
 }
 void on_openfile_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    // Create a new file selection dialog, using the "open" mode
    GtkFileChooserNative *native =
    gtk_file_chooser_native_new("Open File",
                                GTK_WINDOW(self),
                                GTK_FILE_CHOOSER_ACTION_OPEN,
                                "_Open",
                                "_Cancel");
    // Connect the "response" signal of the file selection dialog;
    // this signal is emitted when the user selects a file, or when
    // they cancel the operation
    g_signal_connect (native,
                    "response",
                    G_CALLBACK(on_openfile_response),
                    self);
    // Present the dialog to the user
    gtk_native_dialog_show (GTK_NATIVE_DIALOG (native));
 }
 void on_closefile_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    model_shutdown();
    ui_disable_action("closefile");
    ui_disable_action("savefile");
    ui_disable_action("runmode");
    ui_disable_action("editmode");
    ui_disable_action("presentmode");
    ui_disable_action("togglesidebar");
    ui_set_stack(HOME_MODE);
 }
 void on_savefile_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
 }
 void on_toast_close_action(GSimpleAction *action,
                    GVariant *parameter,
                    gpointer user_data)
 {
    GemGraphClientApplication *self = user_data;
    g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
    ui_close_internal_notification();
 }
 /* -------------------------------------------------------------------------- */
 /*
 * Graphical/view related events
 */
 void on_axis_value_change(GtkAdjustment *adjustment, gpointer data)
 {
    GtkWidget *slider = gtk_widget_get_parent(GTK_WIDGET(data));
    GtkWidget *container_widget = gtk_widget_get_parent(GTK_WIDGET(slider));
    const gchar *label_text = gtk_label_get_label(GTK_LABEL(data));
    // THANKS ASCIIIII/Unicode/Whateverrr !
    int axis = label_text[0] - 'X';
    g_assert(axis >= 0 && axis < N_AXIS);
    /* Update the rotation angle */
    ui_update_axis_stack(container_widget,
                         axis,
                         gtk_adjustment_get_value(adjustment));
    /* Update the contents of the GL drawing area */
 }
 gboolean on_glarea_render(GtkGLArea *area, GdkGLContext *context)
 {
    // Check if the widget is a glarea
    if(gtk_gl_area_get_error(area) != NULL) {
        ui_send_internal_notification("An OpenGL error occured !");
        return false;
    }
    if (ui_render_stack(gtk_widget_get_parent(GTK_WIDGET(area))) == false) {
        ui_send_internal_notification(
            "Failed to render corresponding graphic stack !");
        return false;
    }
    return true;
 }
 /* We need to set up our state when we realize the GtkGLArea widget */
 void on_glarea_realize(GtkWidget *widget)
 {
    GError *internal_error = NULL;
    // Make the GL context current to be able to call the GL API
    gtk_gl_area_make_current(GTK_GL_AREA(widget));
    // Check if the widget is a glarea
    if(gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL) {
        ui_send_internal_notification("An OpenGL error occured !");
        return;
    }
    // Link graphical stack to widget
    if (ui_init_graphic_stack(gtk_widget_get_parent(widget),
                              internal_error) == false) {
        ui_send_internal_notification(
            "Failed to link the graphic stack to widgets !");
        return;
    }
    gtk_gl_area_set_auto_render(GTK_GL_AREA(widget), true);
 }
 /* We should tear down the state when unrealizing */
 void on_glarea_unrealize(GtkWidget *widget)
 {
    GError *internal_error = NULL;
    // Make the GL context current to be able to call the GL API
    gtk_gl_area_make_current(GTK_GL_AREA(widget));
    // Check if the widget is a glarea
    if(gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL) {
        ui_send_internal_notification("An OpenGL error occured !");
        return;
    }
    // Destroy graphic stack
    if (ui_shutdown_graphic_stack(gtk_widget_get_parent(widget),
                                  internal_error) == false) {
        ui_send_internal_notification(
            "Failed to shutdown the graphic stack !");
        return;
    }
 }
 void on_close_window(GtkWidget *widget)
 {
    ui_shutdown_all_graphic_stacks();
    ui_clean_stack_index();
 }
 /* -------------------------------------------------------------------------- */
 /*
 * Responses
 */
 void on_openfile_response(GtkNativeDialog *native,
                          int response,
                          GemGraphClientWindow *self)
 {
    g_autoptr(GFile) file;
    GtkFileChooser *chooser;
    if (response == GTK_RESPONSE_ACCEPT) {
        chooser = GTK_FILE_CHOOSER(native);
        file = gtk_file_chooser_get_file(chooser);
        // Load asynchroneously not to block control flow
        g_file_load_contents_async (file,
                              NULL,
                              (GAsyncReadyCallback)ui_model_loading,
                              self);
    }
    g_object_unref(native);
 }
 void ui_model_loading(GObject *source_object,
                      GAsyncResult *result,
                      GemGraphClientWindow *self)
 {
    GFile *file = G_FILE(source_object);
    char *content = NULL;
    size_t length = 0;
    GError *error = NULL;
    char *basename = g_file_get_basename(file);
    // Gives you the contents of the file as a byte array, or
    // set the error argument
    g_file_load_contents_finish(file,
                               result,
                               &content,
                               &length,
                               NULL,
                               &error);
    // In case of error, print a warning to the standard error output
    if (error != NULL) {
        g_printerr("Unable to open “%s”: %s\n",
                 g_file_peek_path(file),
                 error->message);
        ui_send_internal_notification("Unable to open file !");
        g_free(error);
        g_free(basename);
        g_free(content);
        return;
    }
    if (model_init(content, length, basename) == false) {
        ui_send_internal_notification("Error while loading the model");
        g_free(basename);
        g_free(content);
        return;
    }
    ui_enable_action("closefile");
    ui_enable_action("savefile");
    ui_enable_action("runmode");
    ui_enable_action("editmode");
    ui_enable_action("presentmode");
    ui_enable_action("togglesidebar");
    ui_set_stack(RUN_MODE);
    g_free(basename);
    g_free(content);
 }
--- a/src/ui/gemgraph.ui
+++ b/src/ui/gemgraph.ui
@ -0,0 +1,312 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <!-- Created with Cambalache 0.10.2 -->
 <interface>
  <!-- interface-name gem-graph.ui -->
  <requires lib="gtk" version="4.6"/>
  <template class="GemGraphClientWindow" parent="GtkApplicationWindow">
    <property name="default-height">900</property>
    <property name="default-width">1400</property>
    <property name="icon-name">application-x-executable</property>
    <property name="title">GemGraph 0.1.0</property>
    <style>
      <class name="devel"/>
    </style>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="main_titlebar">
        <child type="end">
          <object class="GtkMenuButton" id="main_button_menu">
            <property name="direction">none</property>
            <property name="menu-model">main_menu</property>
          </object>
        </child>
        <child type="start">
          <object class="GtkMenuButton" id="main_button_mode">
            <property name="always-show-arrow">True</property>
            <property name="use-underline">True</property>
            <property name="tooltip-text" translatable="yes">Change session mode</property>
            <property name="icon-name">document-edit-symbolic</property>
            <property name="menu-model">mode_menu</property>
          </object>
        </child>
        <child>
          <object class="GtkToggleButton" id="main_button_sidebar">
            <property name="icon-name">sidebar-show-symbolic</property>
            <property name="tooltip-text" translatable="yes">Display/hide sidebar</property>
            <property name="action-name">app.togglesidebar</property>
          </object>
        </child>
      </object>
    </child>
    <child>
      <object class="GtkOverlay" id="toast_overlay">
        <child>
          <object class="GtkPaned" id="main_paned">
            <property name="position">300</property>
            <child>
              <object class="GtkStack" id="side_stack">
                <child>
                  <object class="GtkStackPage">
 		                <property name="name">run</property>
                    <property name="child">
                      <object class="GtkBox">
                        <property name="orientation">vertical</property>
                        <child>
                          <object class="GtkBox" id="control_zone">
                            <property name="orientation">vertical</property>
                          </object>
                        </child>
                        <child>
                          <object class="GtkStackSwitcher">
                            <property name="visible">True</property>
                            <property name="stack">runlib_stack</property>
                          </object>
                        </child>
                        <child>
                          <object class="GtkStack" id="runlib_stack">
                            <child>
                              <object class="GtkStackPage">
                                <property name="name">runlib_objects</property>
                                <property name="title" translatable="yes">Objects</property>
                                <property name="visible">True</property>
                                <property name="child">
                                  <object class="GtkLabel" id="label_runlib_objects">
                                    <property name="justify">center</property>
                                    <property name="label" translatable="yes">&lt;b&gt;runlib_objects&lt;/b&gt;</property>
                                    <property name="use-markup">True</property>
                                    <property name="margin-top">50</property>
                                    <property name="margin-bottom">50</property>
                                  </object>
                                </property>
                              </object>
                            </child>
                            <child>
                              <object class="GtkStackPage">
                                <property name="name">runlib_conditions_and_rules</property>
                                <property name="title" translatable="yes">Rules &amp; Conds</property>
                                <property name="visible">True</property>
                                <property name="child">
                                  <object class="GtkLabel" id="label_runlib_conditions_and_rules">
                                    <property name="justify">center</property>
                                    <property name="label" translatable="yes">&lt;b&gt;runlib_conditions_and_rules&lt;/b&gt;</property>
                                    <property name="use-markup">True</property>
                                    <property name="margin-top">50</property>
                                    <property name="margin-bottom">50</property>
                                  </object>
                                </property>
                              </object>
                            </child>
                            <child>
                              <object class="GtkStackPage">
                                <property name="name">runlib_states</property>
                                <property name="title" translatable="yes">Savedstates</property>
                                <property name="visible">True</property>
                                <property name="child">
                                  <object class="GtkLabel" id="label_runlib_states">
                                    <property name="justify">center</property>
                                    <property name="label" translatable="yes">&lt;b&gt;runlib_states&lt;/b&gt;</property>
                                    <property name="use-markup">True</property>
                                    <property name="margin-top">50</property>
                                    <property name="margin-bottom">50</property>
                                  </object>
                                </property>
                              </object>
                            </child>
                          </object>
                        </child>
                      </object>
                    </property>
                  </object>
                </child>
 		            <child>
                  <object class="GtkStackPage">
 		                <property name="name">home</property>
                    <property name="child">
                      <object class="GtkLabel" id="labelhome">
                        <property name="justify">center</property>
                        <property name="label" translatable="yes">&lt;b&gt;Sidebar: home&lt;/b&gt;</property>
                        <property name="use-markup">True</property>
                      </object>
                    </property>
                  </object>
                </child>
                <child>
                  <object class="GtkStackPage">
 		                <property name="name">presentation</property>
                    <property name="child">
                      <object class="GtkLabel" id="labelsidepresentation">
                        <property name="justify">center</property>
                        <property name="label" translatable="yes">&lt;b&gt;Sidebar: presentation mode&lt;/b&gt;</property>
                        <property name="use-markup">True</property>
                      </object>
                    </property>
                  </object>
                </child>
                <child>
                  <object class="GtkStackPage">
                    <property name="name">edition</property>
                    <property name="child">
                      <object class="GtkLabel" id="labelsideedit">
                        <property name="justify">center</property>
                        <property name="label" translatable="yes">&lt;b&gt;Sidebar: edition mode&lt;/b&gt;</property>
                        <property name="use-markup">True</property>
                      </object>
                    </property>
                  </object>
                </child>
              </object>
            </child>
            <child>
              <object class="GtkStack" id="main_stack">
                <child>
                  <object class="GtkStackPage">
                    <property name="name">run</property>
                    <property name="child">
                       <object class="GtkBox" id="run_glarea_box">
                         <property name="orientation">vertical</property>
                      </object>
                    </property>
                  </object>
                </child>
 		            <child>
                  <object class="GtkStackPage">
 		                <property name="name">home</property>
                    <property name="child">
                        <object class="GtkBox">
                          <property name="orientation">vertical</property>
                          <child>
                            <object class="GtkImage">
                              <property name="vexpand">True</property>
                              <property name="file">data/hicolor/apps/scalable/gemgraph_désaturé.png</property>
                            </object>
                          </child>
                          <child>
                            <object class="GtkLabel">
                              <property name="margin-bottom">50</property>
                              <property name="margin-top">00</property>
                              <property name="justify">center</property>
                              <property name="valign">center</property>
                              <property name="label" translatable="yes">&lt;b&gt;Welcome to the Gem-graph client.&lt;/b&gt;</property>
                              <property name="use-markup">True</property>
                            </object>
                          </child>
                        </object>
                    </property>
                  </object>
                </child>
                <child>
                  <object class="GtkStackPage">
                    <property name="name">presentation</property>
                    <property name="child">
                      <object class="GtkBox" id="presentation_glarea_box">
                        <property name="orientation">vertical</property>
                      </object>
                    </property>
                  </object>
                </child>
                <child>
                  <object class="GtkStackPage">
                    <property name="name">edition</property>
                    <property name="child">
                      <object class="GtkBox" id="edition_glarea_box">
                        <property name="orientation">vertical</property>
                      </object>
                    </property>
                  </object>
                </child>
              </object>
            </child>
          </object>
        </child>
        <child type="overlay">
          <object class="GtkRevealer" id="toast_revealer">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="halign">center</property>
            <property name="valign">start</property>
            <property name="transition-type">GTK_REVEALER_TRANSITION_TYPE_SLIDE_DOWN</property>
            <child>
              <object class="GtkBox" id="toast_box">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="valign">start</property>
                <property name="spacing">20</property>
                <child>
                  <object class="GtkLabel" id="toast_text">
                    <property name="visible">True</property>
                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">(null)</property>
                  </object>
                </child>
                <child>
                  <object class="GtkToggleButton" id="toast_close_button">
                    <property name="icon-name">window-close-symbolic</property>
                    <property name="action-name">app.toastclose</property>
                  </object>
                </child>
                <style>
                  <class name="app-notification"/>
                </style>
              </object>
            </child>
          </object>
        </child>
    </object>
    </child>
  </template>
  <menu id="main_menu">
    <section>
      <item>
        <attribute name="label" translatable="yes">_Open...</attribute>
        <attribute name="action">app.openfile</attribute>
      </item>
      <item>
        <attribute name="label" translatable="yes">_Close</attribute>
        <attribute name="action">app.closefile</attribute>
      </item>
      <item>
        <attribute name="label" translatable="yes">_Save</attribute>
        <attribute name="action">app.savefile</attribute>
      </item>
    </section>
    <section>
      <item>
        <attribute name="label" translatable="yes">_Preferences</attribute>
        <attribute name="action">app.preferences</attribute>
      </item>
      <item>
        <attribute name="label" translatable="yes">_Keyboard Shortcuts</attribute>
        <attribute name="action">win.show-help-overlay</attribute>
      </item>
      <item>
        <attribute name="label" translatable="yes">_About GemGraph</attribute>
        <attribute name="action">app.about</attribute>
      </item>
    </section>
  </menu>
  <menu id="mode_menu">
    <section>
      <attribute name="label" translatable="yes">Switch session mode</attribute>
      <item>
        <attribute name="icon">document-edit-symbolic</attribute>
        <attribute name="label" translatable="yes">_Edition</attribute>
        <attribute name="action">app.editmode</attribute>
        <attribute name="use-icon">True</attribute>
      </item>
      <item>
        <attribute name="icon">system-run-symbolic</attribute>
        <attribute name="label" translatable="yes">_Run</attribute>
        <attribute name="action">app.runmode</attribute>
        <attribute name="use-icon">True</attribute>
      </item>
      <item>
        <attribute name="icon">video-display-symbolic</attribute>
        <attribute name="label" translatable="yes">_Presentation</attribute>
        <attribute name="action">app.presentmode</attribute>
        <attribute name="use-icon">True</attribute>
      </item>
    </section>
  </menu>
 </interface>
--- a/src/ui/graphics.c
+++ b/src/ui/graphics.c
@ -0,0 +1,323 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: User interface functions
 *
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <unistd.h>
 #include <gtk-4.0/gtk/gtk.h>
 #include <glib-2.0/glib.h>
 #include "../../include/base.h"
 #include "../../include/ui.h"
 #include "../../include/graphics.h"
 struct stack_index_t {
    long stack_id;
    void *container_widget;
    void *gl_area;
 };
 static struct stack_index_t *stack_index = NULL;
 size_t stack_index_size = 0;
 /*
 *  Look for stack entry and returns stack_id
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns stack_id
 */
 long ui_get_graphic_stack(void *container_widget)
 {
    // look for stack_index entry
    for (int i = 0; i < stack_index_size; i++) {
        if (stack_index[i].container_widget == (void *)container_widget) {
            return stack_index[i].stack_id;
        }
    }
    return -1;
 }
 /*
 *  Look for stack entry and returns stack_id
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns stack_id
 */
 long ui_is_graphic_stack_ready(void *container_widget)
 {
    // look for stack_index entry
    for (int i = 0; i < stack_index_size; i++) {
        if (stack_index[i].container_widget == (void *)container_widget) {
            return stack_index[i].stack_id;
        }
    }
    return -1;
 }
 /*
 *  Look for stack entry and initializes OpenGL for it
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_init_graphic_stack(void *container_widget, GError *error_buffer)
 {
    //g_printerr("[debug] ui_init_graphic_stack()\n");
    //g_printerr("[debug] ui_init_graphic_stack() : target is %p\n", container_widget);
    // look for stack_index entry
    for (int i = 0; i < stack_index_size; i++) {
        //g_printerr("[debug]     ui_init_graphic_stack() : i is %d\n", i);
        //g_printerr("[debug]     ui_init_graphic_stack() : target would be %p\n",
                   //stack_index[i].container_widget);
        if (stack_index[i].container_widget == (void *)container_widget) {
            stack_index[i].stack_id = graphics_init(&error_buffer);
            //g_printerr("[debug] ui_init_graphic_stack() : stack_id is %d\n",
                       //stack_index[i].stack_id);
            if (stack_index[i].stack_id >= 0)
                return true;
            else
                return false;
        }
    }
    return false;
 }
 /*
 *  Look for stack entry and shutdowns OpenGL for it
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_shutdown_graphic_stack(void *container_widget, GError *error_buffer)
 {
    // look for stack_index entry
    for (int i = 0; i < stack_index_size; i++) {
        if (stack_index[i].container_widget == (void *)container_widget) {
            if (graphics_shutdown(stack_index[i].stack_id,
                                  &error_buffer) == false) {
                return false;
            }
            stack_index[i].stack_id = 0;
            return true;
        }
    }
    return false;
 }
 void ui_clean_stack_index(void)
 {
    // look for stack_index entry
    for (int i = 0; i < stack_index_size; i++) {
        stack_index[i].stack_id = 0;
    }
    return;
 }
 /*
 *  Look for stack entry and triggers OpenGL for drawing
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_render_stack(GtkWidget *container_widget)
 {
    // look for stack_index entry
    for (int i = 0; i < stack_index_size; i++) {
        if (stack_index[i].container_widget == (void *)container_widget) {
            graphics_draw(stack_index[i].stack_id);
            return true;
        }
    }
    return false;
 }
 /*
 *  Look for stack entry and triggers OpenGL for drawing
 *
 *  @params container_widget, generally the GtkBox that contains the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_update_axis_stack(GtkWidget *container_widget, int axis, int value)
 {
    // look for stack_index entry
    for (int i = 0; i < stack_index_size; i++) {
        if (stack_index[i].container_widget == (void *)container_widget) {
            graphic_stack[stack_index[i].stack_id].rotation_angles[axis] = value;
            gtk_widget_queue_draw((GtkWidget*)(stack_index[i].gl_area));
            return true;
        }
    }
    return false;
 }
 /*
 *  Look for every stack entry and shutdowns OpenGL for it
 *
 *  @params void
 *
 *  @returns bool, true if success
 */
 void ui_shutdown_all_graphic_stacks(void)
 {
    // look for stack_index entry
    for (int i = 0; i < stack_index_size; i++) {
        graphics_shutdown(stack_index[i].stack_id, NULL);
    }
    return;
 }
 /*
 *  Creates a slider widget
 *
 *  @params axis, meaning which axis we're building (for label)
 *
 *  @returns GtkWidget*, pointer to the new widget
 */
 GtkWidget *create_axis_slider(int axis)
 {
    GtkWidget *box, *label, *slider;
    GtkAdjustment *adj;
    const char *text;
    box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
    switch (axis) {
    case X_AXIS:
        text = "X";
        break;
    case Y_AXIS:
        text = "Y";
        break;
    case Z_AXIS:
        text = "Z";
        break;
    default:
        g_assert_not_reached();
    }
    label = gtk_label_new(text);
    gtk_box_append(GTK_BOX(box), label);
    gtk_widget_show(label);
    adj = gtk_adjustment_new(0.0, 0.0, 360.0, 1.0, 12.0, 0.0);
    g_signal_connect(adj, "value-changed",
                                        G_CALLBACK(on_axis_value_change),
                                        (gpointer) label);
    slider = gtk_scale_new(GTK_ORIENTATION_HORIZONTAL, adj);
    gtk_box_append(GTK_BOX(box), slider);
    gtk_widget_set_hexpand(slider, TRUE);
    gtk_widget_show(slider);
    gtk_widget_show(box);
    return box;
 }
 /*
 *  Creates GLArea and indexes it
 *
 *  @params target_mode, meaning which ui_stack we're on
 *          target_widget, meaning the box that will host the GLArea
 *
 *  @returns bool, true if success
 */
 bool ui_setup_glarea(int target_mode, GtkWidget *target_widget)
 {
    GtkWidget *gl_area;
    ////g_printerr("[debug] ui_setup_glarea()\n");
    assert(target_widget);
    ////g_printerr("[debug] ui_setup_glarea() : target is %p\n", target_widget);
    if (stack_index == NULL) {
        stack_index = g_malloc(sizeof(struct stack_index_t));
        stack_index_size = 1;
    } else {
        // look for stack_index entry
        for (int i = 0; i < stack_index_size; i++) {
            if (stack_index[i].container_widget == (void *)target_widget) {
                return false;
            }
        }
        // create entry
        stack_index =
            g_realloc(stack_index,
                      ++stack_index_size * sizeof(struct stack_index_t));
    }
    gl_area = GTK_WIDGET(gtk_gl_area_new());
    assert(gl_area);
    //gtk_widget_set_size_request(gl_area, 1000, 1000);
    gtk_gl_area_set_auto_render(GTK_GL_AREA(gl_area), true);
    gtk_widget_set_hexpand(gl_area, TRUE);
    gtk_widget_set_vexpand(gl_area, TRUE);
    //gtk_widget_set_halign(gl_area, GTK_ALIGN_CENTER);
    //gtk_widget_set_valign(gl_area, GTK_ALIGN_CENTER);
    // The main "draw" call for GtkGLArea
    g_signal_connect(GTK_GL_AREA(gl_area),
                     "render",
                     G_CALLBACK(on_glarea_render), NULL);
    g_signal_connect(gl_area,
                     "realize",
                     G_CALLBACK(on_glarea_realize), NULL);
    g_signal_connect(gl_area,
                     "unrealize",
                     G_CALLBACK(on_glarea_unrealize), NULL);
    stack_index[stack_index_size-1].container_widget =
        (void*)target_widget;
    stack_index[stack_index_size-1].gl_area = (void*)gl_area;
    ////g_printerr("[debug] ui_setup_glarea() : set target to %p\n", target_widget);
    ////g_printerr("[debug] ui_setup_glarea() : stack_index (@0x%p) had %ld elements\n",
               //stack_index,
               //stack_index_size);
    gtk_box_append(GTK_BOX(target_widget), gl_area);
    gtk_widget_show(GTK_WIDGET(gl_area));
    // Create sliders
    for(int i = 0; i < N_AXIS; i++)
        gtk_box_append(GTK_BOX(target_widget), create_axis_slider(i));
    return true;
 }
--- a/src/ui/window.c
+++ b/src/ui/window.c
@ -0,0 +1,236 @@
 /*
 *      Gem-graph OpenGL experiments
 *
 *      Desc: User interface functions
 *
 *  Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
 *  Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
 *
 *  This file is part of Gem-graph.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <unistd.h>
 #include <gtk-4.0/gtk/gtk.h>
 #include <glib-2.0/glib.h>
 #include "../../include/base.h"
 #include "../../include/ui.h"
 /* -------------------------------------------------------------------------- */
 static GemGraphClientWindow *window;
 /* -------------------------------------------------------------------------- */
 struct _GemGraphClientWindow
 {
    GtkApplicationWindow  parent_instance;
    /* Template widgets */
    GtkHeaderBar *main_titlebar;
    GtkStack *main_stack;
    GtkStack *side_stack;
    GtkPaned *main_paned;
    GtkMenuButton *main_button_mode;
    GtkToggleButton *main_button_sidebar;
    GtkRevealer *toast_revealer;
    GtkToggleButton *toast_close_button;
    GtkLabel *toast_text;
    GtkBox *control_zone;
    GtkBox *run_glarea_box;
    GtkBox *edition_glarea_box;
    GtkBox *presentation_glarea_box;
 };
 G_DEFINE_FINAL_TYPE (GemGraphClientWindow,
                     gem_graph_client_window,
                     GTK_TYPE_APPLICATION_WINDOW)
 static void gem_graph_client_window_class_init(GemGraphClientWindowClass *klass)
 {
    gchar *contents;
    gsize len;
    GError *err;
    GBytes *bytes;
    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
    if (g_file_get_contents("src/ui/gemgraph.ui", &contents, &len, &err) == FALSE)
        g_error("error reading gemgraph.ui: %s", err->message);
    bytes = g_bytes_new_take(contents, len);
    gtk_widget_class_set_template(GTK_WIDGET_CLASS(klass), bytes);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       main_titlebar);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       main_stack);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       side_stack);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       main_paned);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       main_button_mode);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       main_button_sidebar);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       toast_revealer);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       toast_close_button);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       toast_text);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       control_zone);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       run_glarea_box);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       edition_glarea_box);
    gtk_widget_class_bind_template_child(widget_class,
                                       GemGraphClientWindow,
                                       presentation_glarea_box);
 }
 static void gem_graph_client_window_init(GemGraphClientWindow *self)
 {
    gtk_widget_init_template(GTK_WIDGET(self));
    window = self;
    // Launch with sidebar off
    ui_toggle_sidebar();
 }
 /* -------------------------------------------------------------------------- */
 void ui_set_stack(int mode)
 {
    //g_printerr("[debug] ui_set_stack()\n");
    if (window->main_stack == NULL) {
        g_printerr("Can't find self->main_stack !\n");
        return;
    }
    if (window->side_stack == NULL) {
        g_printerr("Can't find self->side_stack !\n");
        return;
    }
    // Switch on the first letter of the mode, because switch is soooo simple :)
    switch(mode) {
        case EDIT_MODE:
            gtk_stack_set_visible_child_full(window->main_stack,
                                     "edition",
                                     GTK_STACK_TRANSITION_TYPE_CROSSFADE);
            gtk_stack_set_visible_child_full(window->side_stack,
                                     "edition",
                                     GTK_STACK_TRANSITION_TYPE_CROSSFADE);
            gtk_menu_button_set_icon_name(window->main_button_mode,
                                     "document-edit-symbolic");
            ui_setup_glarea(EDIT_MODE, GTK_WIDGET(window->edition_glarea_box));
            break;
        case RUN_MODE:
            gtk_stack_set_visible_child_full(window->main_stack,
                                     "run",
                                     GTK_STACK_TRANSITION_TYPE_CROSSFADE);
            gtk_stack_set_visible_child_full(window->side_stack,
                                     "run",
                                     GTK_STACK_TRANSITION_TYPE_CROSSFADE);
            gtk_menu_button_set_icon_name(window->main_button_mode,
                                     "system-run-symbolic");
            ui_setup_glarea(RUN_MODE, GTK_WIDGET(window->run_glarea_box));
            break;
        case PRESENTATION_MODE:
            gtk_stack_set_visible_child_full(window->main_stack,
                                     "presentation",
                                     GTK_STACK_TRANSITION_TYPE_CROSSFADE);
            gtk_stack_set_visible_child_full(window->side_stack,
                                     "presentation",
                                     GTK_STACK_TRANSITION_TYPE_CROSSFADE);
            gtk_menu_button_set_icon_name(window->main_button_mode,
                                     "x-office-presentation-symbolic");
            ui_setup_glarea(PRESENTATION_MODE,
                            GTK_WIDGET(window->presentation_glarea_box));
            break;
        case HOME_MODE:
            gtk_stack_set_visible_child_full(window->main_stack,
                                     "home",
                                     GTK_STACK_TRANSITION_TYPE_CROSSFADE);
            gtk_stack_set_visible_child_full(window->side_stack,
                                     "home",
                                     GTK_STACK_TRANSITION_TYPE_CROSSFADE);
            gtk_paned_set_position(window->main_paned, 0);
            gtk_menu_button_set_icon_name(window->main_button_mode,
                                     "user-home-symbolic");
            break;
        default:
            break;
    }
 }
 void ui_send_internal_notification(const char *message)
 {
    if (window->toast_revealer == NULL) {
        g_printerr("Can't find self->toast_overlay !\n");
        return;
    }
    if (window->toast_text == NULL) {
        g_printerr("Can't find self->toast_overlay !\n");
        return;
    }
    gtk_label_set_label(window->toast_text, message);
    gtk_revealer_set_reveal_child(window->toast_revealer, true);
    g_printerr("%s\n", message);
 }
 void ui_close_internal_notification(void)
 {
    if (window->toast_revealer == NULL) {
        g_printerr("Can't find self->toast_overlay !\n");
        return;
    }
    if (window->toast_text == NULL) {
        g_printerr("Can't find self->toast_overlay !\n");
        return;
    }
    gtk_revealer_set_reveal_child(window->toast_revealer, false);
 }
 void ui_toggle_sidebar(void)
 {
    int position = gtk_paned_get_position(window->main_paned);
    if (position != 0) {
        gtk_paned_set_position(window->main_paned, 0);
    } else {
        gtk_paned_set_position(window->main_paned, 400);
    }
 }
Author	SHA1	Message	Date
Adrien Bourmault	79cae53525	src/graphics, src/parsing: drawing model initial state	2024-01-12 17:23:06 +01:00
Adrien Bourmault	5f2abbda15	WIP: src/graphics, src/parsing: get multiplicity	2024-01-12 11:17:40 +01:00
Adrien Bourmault	3bb99b5a26	src/graphics: corrected aspect ratio and optimized matrices	2024-01-11 23:43:39 +01:00
Adrien Bourmault	0da55ac88b	Use parsed model to define dimension and space size of GLArea	2024-01-11 22:27:52 +01:00
Adrien Bourmault	d50ce9afe1	WIP: simple opening of XML file	2024-01-11 18:10:16 +01:00
Adrien Bourmault	52e6c59d76	Clean-up debug printing	2024-01-11 18:09:51 +01:00
Adrien Bourmault	53c2fd9209	src/graphics, src/ui: now capable of generating multiple GLArea and their stack	2024-01-10 18:27:46 +01:00
Adrien Bourmault	ff35840a26	src/graphics, src/ui: reworked GLArea generation and setup	2024-01-10 11:51:53 +01:00
Adrien Bourmault	9bb7cefc2f	WIP: no image but no more segfault	2023-12-20 18:01:27 +01:00
Adrien Bourmault	02880d3dde	WIP: GLArea managed by graphical stack, but nothing is displayed	2023-12-20 14:13:04 +01:00
Adrien Bourmault	319b84b099	WIP: GLAreas stacks are now managed	2023-12-20 13:34:44 +01:00
Adrien Bourmault	9325a7cb6f	WIP: total rewrite graphic stack allocation	2023-12-19 21:46:51 +01:00
Adrien Bourmault	6a2f3afe89	src/ui/main.c: suppression d'espaces inutiles	2023-12-19 16:26:57 +01:00
Adrien Bourmault	cddf16516f	src/ui/glarea.c->graphics.c: renommage pour clarté	2023-12-19 16:26:26 +01:00
Adrien Bourmault	e4e6410c0b	WIP: working on glarea allocator	2023-12-19 11:45:59 +01:00
Adrien Bourmault	8e07cc7499	Makefile: no more automated guix shell Users/contributors have to run guix shell -m manifest in order to build the project	2023-12-18 23:05:59 +01:00
Adrien Bourmault	0261a4c2e8	WIP: cleanup	2023-12-12 18:42:01 +01:00
Jean Sirmai	89ffa7fb82	O K P R I N T I N G + O K D R A W I N G ( + C O M M E N T S )	2023-12-12 18:37:32 +01:00
Jean Sirmai	d538e1a0ef	Ok console; Ok graphisme (sauf inversion N/S) pour de petits nombres aléatoires	2023-12-12 18:36:31 +01:00
Jean Sirmai	5c224b20cf	create_arrow() creating in arrows_ptr and drawing	2023-12-12 16:55:09 +01:00
Jean Sirmai	5c8ed2ce06	REF: OK POUR DES PETITES VALEURS (RANDOM) - VERTEX & LIGNES GROUPÉES	2023-12-12 16:54:48 +01:00
Jean Sirmai	246e73111f	OK (space & arrows) pour de petits nombres. Nettoyage en cours.	2023-12-12 16:54:41 +01:00
Jean Sirmai	551c5a5df2	Forme quasi stable	2023-12-12 16:54:12 +01:00
Jean Sirmai	6698c51c6d	Fixed segfault/abort/double free with realloc in *_arrow()	2023-12-12 16:54:05 +01:00
Jean Sirmai	979cd8f947	set_arrow() OK (printf + drawing) with no more than two calls < to check ++	2023-12-12 16:53:58 +01:00
Jean Sirmai	f9722f51b1	SUCCESS IN PASSING A STRONG RANDOM GRAPHIC TEST	2023-12-12 16:53:49 +01:00
Jean Sirmai	c3c2ca9f9a	function set_arrow() ready to be used	2023-12-12 16:52:44 +01:00
Jean Sirmai	0ebd025bd8	create_arrow(): fonctionnel mais quelques bugs	2023-12-12 16:51:59 +01:00
Jean Sirmai	d4c7e1bba5	réécriture de grid_write_ridges (x,y,z) et déplacement de show_user_choices() 6 flèches au centre main_test_graphics() et arrows simplifiés mais pb. calcul arrows_nb à partir de arrows[] cf. lignes 140, 170 et 647	2023-12-12 16:51:01 +01:00
Jean Sirmai	2732ec3289	src/graphics/*: Reworked modularity, buffer allocation and reallocation of lines buffer Acked-by: Adrien 'neox' Bourmault <neox@a-lec.org>	2023-12-12 16:50:57 +01:00
Jean Sirmai	5549f334b8	First 3D representation Space units are 3D, arrows are 3D, space can be 3D/2D/1D. Every dimension length can be defined independently. At this time, arrows are drawn after a statically-defined array. Signed-off-by: Jean Sirmai <jean@a-lec.org> Acked-by: neox <neox@a-lec.org>	2023-12-12 16:50:27 +01:00
Adrien Bourmault	eaa39dc29f	Nettoyage	2023-06-27 18:07:37 +02:00
Jean Sirmai	b36730db97	Fusion travail perso dans dev/graphics	2023-06-27 15:43:23 +02:00
Jean Sirmai	4f766689ee	WIP: is okay mais pas encore bien structuré	2023-06-27 15:20:39 +02:00
Jean Sirmai	ecd3ed98fc	WIP: des couleurs, certes...	2023-06-23 23:48:14 +02:00
Jean Sirmai	a6927dbaa5	WIP: pref_3D_xor_2D_space and pref_mark_unit_space_zero seem OK (check)	2023-06-23 16:55:58 +02:00
Jean Sirmai	28c45295c6	WIP: Restructuration graphics/graphics in progress. Is OK.	2023-06-23 12:52:44 +02:00
Jean Sirmai	4d5aa2c993	WIP: Bon. C'est blindé d'erreurs mais ça le fait en 3D + 1 p'tite flèche. A nettoyer ++	2023-06-15 21:29:15 +02:00
Jean Sirmai	e9d45b3e88	WIP: un p'tit coup d'espace 3D (sans les flèches)	2023-06-15 20:48:40 +02:00
Jean Sirmai	a0cce217b2	WIP: Réorganisation de graphics.c création de space_2D.c et arrow_2D.c	2023-06-15 19:50:49 +02:00
Jean Sirmai	1c5f45d505	Is OK. Avant restructuration. (découpage de graphics.c en "control_graphics.c" + space_2D.c + _3D.c + etc)	2023-06-15 11:40:55 +02:00
Jean Sirmai	4dada5b292	Premières couleurs ! Success !	2023-06-14 17:51:19 +02:00
Jean Sirmai	f12c22b73b	Couleurs (premier essai > que du noir et blanc)	2023-06-14 16:01:52 +02:00
Jean Sirmai	efe117076f	Première représentation 3D d'un modèle 1D	2023-06-09 15:03:28 +02:00
Jean Sirmai	2a9ed561fb	Added include/parsing.h	2023-04-18 11:16:52 +02:00
Jean Sirmai	4a46e62cbc	Added parsing/, currently parses states	2023-04-18 11:13:18 +02:00
Adrien Bourmault	abea32cd88	WIP: gl_area params allocated	2023-02-26 14:57:50 +01:00
Adrien Bourmault	b2e25470ed	WIP: solved segfault but need to improve gl_area_array	2023-02-25 21:23:37 +01:00
Adrien Bourmault	0396f8039b	WIP: NOT WORKING: read_file()	2023-02-23 21:54:22 +01:00
Adrien Bourmault	df294bd780	WIP: close sidebar when closing	2023-02-23 20:07:38 +01:00
Adrien Bourmault	0a7c9d28d3	WIP: clean error for alloc problems	2023-02-23 20:03:36 +01:00
Adrien Bourmault	4e291bc179	WIP: clean	2023-02-23 19:55:53 +01:00
Adrien Bourmault	d761711ede	WIP: allocation dynamique des paramètres de GLArea	2023-02-23 19:51:02 +01:00
Adrien Bourmault	ada9f32d7a	Amélioration layout run_controls	2023-02-09 12:43:00 +01:00
Adrien Bourmault	9969c6233c	Amélioration layout	2023-02-09 12:39:14 +01:00
Adrien Bourmault	086c3d97b6	Nettoyage	2023-02-08 16:10:59 +01:00
Adrien Bourmault	65b068f0ee	WIP: Adding stacks for lib in runmode	2023-02-01 19:13:34 +01:00
Adrien Bourmault	e4edaf39ca	WIP: Adding stacks for lib in runmode	2023-02-01 19:12:57 +01:00
Adrien Bourmault	9ae1c49522	WIP: Adding stacks for lib in runmode	2023-02-01 19:06:39 +01:00
Adrien Bourmault	5031635e6e	WIP: correcting UI	2023-02-01 18:08:37 +01:00
Adrien Bourmault	eb851fb88f	Notification plus claire	2023-01-27 01:28:54 +01:00
Adrien Bourmault	a4da61a914	Logo Gem-graph	2023-01-26 22:16:40 +01:00
Adrien Bourmault	e96f339cf4	Cleanup	2023-01-26 02:04:56 +01:00
Adrien Bourmault	9f3d83af65	Cleanup & refactor	2023-01-26 01:59:19 +01:00
Adrien Bourmault	a8ecb75b2d	Cleanup & refactor	2023-01-26 01:58:23 +01:00
Adrien Bourmault	ef901d4a48	Cleanup & refactor	2023-01-26 01:56:54 +01:00
Adrien Bourmault	8aae05fefc	Cleanup and added events	2023-01-26 01:38:51 +01:00
Adrien Bourmault	3c762e71b8	Cleanup	2023-01-26 01:24:42 +01:00
Adrien Bourmault	fbea0f51a9	dev/gtk4 fusionné	2023-01-26 01:14:24 +01:00
Adrien Bourmault	23dbd119a0	Maj copyright	2023-01-26 01:09:52 +01:00
Adrien Bourmault	f3c70222d0	Maj auteurs	2023-01-26 01:09:38 +01:00
Adrien Bourmault	64fa82a741	GLArea dans la place	2023-01-26 01:07:07 +01:00
Adrien Bourmault	0a494a6b21	Notifications fonctionnelles	2023-01-25 23:14:55 +01:00
Adrien Bourmault	70348674cd	Cleanup	2023-01-25 22:47:17 +01:00
Adrien Bourmault	9f3cb07837	WIP: Notification widget	2023-01-25 20:48:36 +01:00
Adrien Bourmault	a70d4fcf21	WIP: notification	2023-01-25 20:20:25 +01:00
Adrien Bourmault	aa4395c1ae	Changed mode names	2023-01-25 19:30:40 +01:00
Adrien Bourmault	91026f87be	Changed function naming style	2023-01-25 19:27:51 +01:00
Adrien Bourmault	9c42fae1f2	Mode changing via menu !	2023-01-25 19:08:19 +01:00
Adrien Bourmault	bf6db3fa34	Mode changing !	2023-01-25 19:05:38 +01:00
Adrien Bourmault	4d65a51e09	Obtained open/close with changing mode	2023-01-25 18:48:01 +01:00
Adrien Bourmault	c736e15ecd	WIP: new actions (2)	2023-01-25 15:25:24 +01:00
Adrien Bourmault	555478c783	WIP: new actions	2023-01-25 15:25:04 +01:00
Adrien Bourmault	4a29b20acb	Réorganisation dossiers (2)	2023-01-25 12:31:29 +01:00
Adrien Bourmault	1b17dcf5b1	Réorganisation des répertoires	2023-01-25 12:24:52 +01:00
Adrien Bourmault	11c9405080	WIP: widgets bound	2023-01-24 22:59:37 +01:00
Adrien Bourmault	227c448052	Base window visible	2023-01-24 21:54:29 +01:00
Adrien Bourmault	4766fbc9bb	WIP: obtained a window	2023-01-24 21:06:32 +01:00
Adrien Bourmault	4b6383bf0c	WIP: obtained a window	2023-01-24 21:06:05 +01:00
Adrien Bourmault	dce3310970	WIP: C transition, beginning from gemgl	2023-01-23 18:52:57 +01:00
Adrien Bourmault	cd0a733dec	WIP: begin transition to C lang (2)	2023-01-23 18:44:38 +01:00
Adrien Bourmault	b9303dea47	WIP: begin transition to C lang	2023-01-23 18:44:16 +01:00
Adrien Bourmault	b1fcff56af	Typo	2022-08-02 11:25:06 +02:00
Adrien Bourmault	392242dff0	Implemented home state and open action activating modes	2022-08-02 11:02:29 +02:00
Adrien Bourmault	a866f117b1	Created home mode at startup	2022-08-02 10:29:48 +02:00
Adrien Bourmault	4acc10e72d	Added Open/Close/Save options and toast notifications	2022-07-29 17:59:05 +02:00
Adrien Bourmault	ccaf200dbe	Mode icon + default run mode	2022-07-29 10:59:57 +02:00
Adrien Bourmault	95aa86fbd0	Cleaned up code and concepts in UI	2022-07-29 00:23:29 +02:00
Adrien Bourmault	d00e036a7e	Implemented work mode with GtkStacks	2022-07-28 23:27:24 +02:00
Adrien Bourmault	b33e9806c7	WIP: gtk4 template	2022-07-28 01:55:44 +02:00
Adrien Bourmault	e06b241d01	WIP: icônes	2022-06-30 23:52:12 +02:00
Adrien Bourmault	ddc7a362be	Menus et actions	2022-06-30 16:43:59 +02:00
Adrien Bourmault	8f92aab835	Ignorer les binaires	2022-06-30 16:43:22 +02:00
Adrien Bourmault	b5f40e4767	Revert "essais de copier-coller-modifier en partant du fichier XML gem-graph.ui" This reverts commit `fffaaa8df0`.	2022-06-30 15:05:29 +02:00
Adrien Bourmault	22924dfac7	Ignorer les binaires	2022-06-30 15:00:26 +02:00
Adrien Bourmault	14ad614ade	Ignorer les binaires	2022-06-30 11:50:11 +02:00
Jean Sirmai	fffaaa8df0	essais de copier-coller-modifier en partant du fichier XML gem-graph.ui	2022-06-29 14:19:42 +02:00
Adrien Bourmault	6cd611a5b4	WIP: reboot for an UI	2022-06-24 20:02:09 +02:00
Adrien Bourmault	16cfd64e9b	WIP: reboot for an UI	2022-06-24 20:01:35 +02:00
Adrien Bourmault	1aee371bee	WIP: new draft for an UI	2022-06-24 19:19:34 +02:00
Adrien Bourmault	6ce4bb1a2d	WIP: new draft for an UI	2022-06-24 19:17:14 +02:00
Adrien Bourmault	0a62d6c3ba	WIP: new draft for an UI	2022-06-24 18:19:11 +02:00
Adrien Bourmault	0b96e3c5c1	Reboot de l'UI du client	2022-06-24 17:36:21 +02:00
Adrien Bourmault	de7f61e156	Fusion de dev/XMLS schéma final 0.2.1	2021-12-07 20:01:44 +01:00
Adrien Bourmault	5b9a7dbdfe	Merge branch 'dev/parsing' into 'devel' Parsing du modèle utilisateur See merge request gem-graph/gem-graph-client!7	2021-12-07 18:45:15 +00:00
Adrien Bourmault	929fc53e2c	Parsing du modèle utilisateur	2021-12-07 18:45:15 +00:00
Adrien Bourmault	0b140a54c6	Merge branch 'dev/ui' into 'devel' premier jet d'interface graphique See merge request gem-graph/gem-graph-client!9	2021-11-30 14:35:48 +00:00
Adrien Bourmault	fd24472805	premier jet d'interface graphique	2021-11-30 14:35:48 +00:00
Adrien Bourmault	e0bb902ab8	Merge branch 'dev/XMLS' into 'devel' Mise à jour du modèle XML version 0.2 See merge request gem-graph/gem-graph-client!8	2021-11-11 15:22:42 +00:00
Adrien Bourmault	221d95f4dc	Mise à jour du modèle XML version 0.2	2021-11-11 15:22:42 +00:00