多边形布尔运算:求并、求交和求差，图形学算法 框架MFC编写-polygonal Boolean Operators : seeking and that the intersection and for worse, graphics algorithm fr a mework of the preparation of MFC

多边形布尔运算:求并、求交和求差，图形学算法 框架MFC编写-polygonal Boolean Operators : seeking and that the intersection and for worse, graphics algorithm fr a mework of the preparation of MFC