| CleanUpPolygon(IPolyClass, Int32) | Combine lines and arcs if they have same start/end point and same angle/center/direction. This removes some of the edges to get simpl polygons. |
| CleanUpPolygon(IPolyClass, Boolean, Int32) | Combine lines and arcs if they have same start/end point and same angle/center/direction. This removes some of the edges to get simpl polygons. |