[Visual C++ (VC++)]
scalingpolygon.Rarwith vc MapObjects development of the source code, using the mouse to operate polygons and achieve the polygon's zoom function.
[Visual C++ (VC++)]
differencesorpolygon.Rarwith vc MapObjects development of the source code, using the mouse to operate Polygon, the realization of a polygon or functional differences.
[Visual C++ (VC++)]
polygonintersectioncalculation.Rarwith vc MapObjects development of the source code, using the mouse to operate polygons and achieve the intersection of polygons computing capabilities.
[Visual C++ (VC++)]
polygoncount.Rarwith vc MapObjects development of the source code, using the mouse to operate polygons and achieve the polygon count function.