WIP: On s'approche vraiment de 'LA SOLUTION' ! Domaine de définition plus étendu. Is OK !

src/graphics/buffers.c

@@ -314,7 +314,7 @@ static bool compute_space_3D (int x,
     float i, j, k, vx, vy, vz, max = maximum * CORRC;
 
     printf("max(%d,%d,%d) = %d;   size_x / max = %6.3f;   size_y / max = %6.3f;   size_z / max = %6.3f\n",\
-           x - 1, (y - 1) - 1, z - 1, maximum, (x - 1) / max, (y - 1) / max, (z - 1) / max);
+           x - 1, y - 1, z - 1, maximum, (x - 1) / max, (y - 1) / max, (z - 1) / max);
 
     for (i = 0; i < x; i++){
         for (j = 0; j < y; j++){
@@ -334,7 +334,7 @@ static bool compute_space_3D (int x,
                 *(color_origin  + colors_ndx + 1) = 3 * vy / 2;
                 *(color_origin  + colors_ndx + 2) = vz;
 
-                colors_ndx += 3;                // if (C) printf(" => colors_ndx = %3d\n", colors_ndx);
+                colors_ndx += 3;                // if (C) printf(" => colors_ndx = %3d\n", colors_ndx);23.
 
                 if (P) printf("(%1.0f*%1.0f*%1.0f)<>[%6.3f %6.3f %6.3f] ", i, j, k, vx, vy, vz);
             }
@@ -346,8 +346,7 @@ static bool compute_space_3D (int x,
     for (int u = 0; u < y; u ++){
         for (int w = 0; w < z; w ++){
             *(line_origin + lines_ndx) = w + z * u; lines_ndx += 1;
-            *(line_origin + lines_ndx) = x * y * z
-                  - y * z + w + z * u; lines_ndx += 1;
+            *(line_origin + lines_ndx) = x * y * z - y * z + w + z * u; lines_ndx += 1;
         }
     }
 
@@ -359,7 +358,7 @@ static bool compute_space_3D (int x,
     }
 
     for (int u = 0; u < x; u ++){
-        for (int w = 0; w < y - 1; w ++){
+        for (int w = 0; w < z; w ++){
             *(line_origin + lines_ndx) = z * y * u + w; lines_ndx += 1;
             *(line_origin + lines_ndx) = z * y * u + z * (y - 1) + w; lines_ndx += 1;
         }

src/graphics/graphics.c

@@ -539,9 +539,9 @@ GLubyte arrows[] = {
 
 static void get_model_data_and_user_preferences(){
 
-    model_space_size_x = 10;    //   0 < model_space_size_x
-    model_space_size_y = 4;    //   0 < model_space_size_y
-    model_space_size_z = 3;    //   0 < model_space_size_z
+    model_space_size_x = 3;    //   0 < model_space_size_x
+    model_space_size_y = 8;    //   0 < model_space_size_y
+    model_space_size_z = 5;    //   0 < model_space_size_z
     model_arrows_nb = 0; //  assert : l'emplacement des flèches est contraint
                          //  par model_space_size_x, y, z et le nombre de sites