"Number of surface vertices (%i) or triangles (%i) do not match precalculated values (%i/%i)"%(len(surf.GetVertexIDList()),len(surf.GetTriIDList()),self.num_vert,self.num_tri)
"Number of surface vertices (%i) or triangles (%i) do not match precalculated values (%i/%i)"%(len(surf.GetVertexIDList()),len(surf.GetTriIDList()),self.num_vert,self.num_tri)