diff --git a/src/graphics/graphics.c b/src/graphics/graphics.c
index 746f294..be07b1f 100644
--- a/src/graphics/graphics.c
+++ b/src/graphics/graphics.c
@@ -825,14 +825,16 @@ void main_test_graphics (void)
     /* else for (int i = 0; i < 6; i++) */
     /*     arrows_nb = set_arrow (arrows_ptr, arrows_nb, 1, 1, 1, 0, i, 0, 0, 0, 0); */
 
-    int angle = 9;
-    if (space_X > angle && space_Y > angle && space_Z > angle) for (int i = 0; i < angle; i++)
-        for (int u = 0; u < angle; u++) for (int v = 0; v < angle; v++) for (int w = 0; w < angle; w++)
-            if (u + v + w < angle * 3)
-                arrows_nb = set_arrow (arrows_ptr, arrows_nb, 1, 1, 1, 0, i, u, v, w, 0);
+    int mxy = MIN(space_X, space_Y); int mxyz = MIN(mxy, space_Z);
+    int min_x = MIN(mxyz, space_X), min_y = MIN(mxyz, space_Y), min_z = MIN(mxyz, space_Z);
+    for (int i = 0; i < 6; i++)
+        for (int u = 0; u < min_x; u++)
+            for (int v = 0; v < min_y; v++)
+                for (int w = 0; w < min_z; w++)
+                    if (u + v + w < mxyz)
+    arrows_nb = set_arrow (arrows_ptr, arrows_nb, 1, 1, 1, 0, i, u, v, w, 0);
 
-     if (space_X > angle && space_Y > angle && space_Z > angle)
-        printf("+ effacement des flèches dans l'angle-origine\
+    printf("\n+ effacement des flèches dans l'angle-origine\
   <=>  contrôle graphique de la fonction erase_arrow()\n");
 
     if (1) print_user_choices(arrows_ptr, max_arrows_nb, arrows_nb, space_X, space_Y, space_Z, 0, 0);