switch from MailleurTT to internal meshing

src/Model/Geometry/PointXYZ.py

@@ -228,3 +228,13 @@ class PointXYZ(Point, SQLSubModel):
         c = PointXYZ.distance(p3, p1)
         s = (a + b + c) / 2
         return (s*(s-a) * (s-b)*(s-c)) ** 0.5
+
+    def copy(self):
+        p = PointXYZ(self.x,
+                     self.y,
+                     self.z,
+                     self.name,
+                     self._profile,
+                     self._status)
+        p.sl = self.sl
+        return p