More efficient polygon tessellation.

smtk/bridge/polygon/operators/ForceCreateFace.cxx

@@ -314,8 +314,8 @@ smtk::model::OperatorResult ForceCreateFace::operateInternal()
     // V. Add tessellation
     poly::polygon_set_data<internal::Coord> polys;
     std::vector<poly::polygon_data<internal::Coord> > tess;
-    polys += pface;
-    get_trapezoids(tess, polys);
+    polys = pface;
+    polys.get_trapezoids(tess);
     std::vector<poly::polygon_data<internal::Coord> >::const_iterator pit;
     smtk::model::Tessellation blank;
     smtk::model::UUIDsToTessellations::iterator smtkTess =