Clear versions.

Normand Briere

2019-08-22 0c7b833be7d86598a6813cd1c6db0ca9e1b17966

 Grid.java
..
..
@@ -67,6 +67,11 @@
67
67
         return 1;
68
68
     }
69
69
     
70
+    double vFlip(double v)
71
+    {
72
+        return 1-v;
73
+    }
74
+    
70
75
     Vertex biparamFunction(double u, double v)
71
76
     {
72
77
         Vertex temp = new Vertex((2*v-1)*radius*4, 0 /*-radius,*/, (2*u-1)*radius*4);