refactor of Polygon to PolygonMesh

surf/subd/cc.py

@@ -1,8 +1,8 @@
-from surf.geometry import Vertex, Edge, Polygon
+from surf.geometry import Vertex, Edge, PolygonMesh
 
 
 def sub_edges(self):
-    temp_p = Polygon()
+    temp_p = PolygonMesh()
     temp_p.edges = [Edge(), Edge()]
     # temp_p.vertices =
     sub_edges[0].vertices = [self.vertices[0], self.edge_vertex]
@@ -203,7 +203,7 @@ def refine(poly):
     '''
 
     # create a new storage container for the items
-    new_poly = Polygon()
+    new_poly = PolygonMesh()
 
     # for now just test with the first face
     start_face = poly.faces[0]
@@ -282,4 +282,4 @@ def refine(poly):
     # # R = average of all edge vertices touching P
     # # P original point
     # # n = face vertices or edge vertices (should be the same number)
-    # return Polygon(vertices, edges, faces)
+    # return PolygonMesh(vertices, edges, faces)