clip clipBottom clipEdge clipLeft clipRight clipTop getCount getPoint getPoints isLinked kSideType m_closed m_rect m_vs1 m_vs2 operator= output PolygonClip

clipTop() void PolygonClip::clipTop ( vector< Point2d > &  arr, const Point2d &  p1, const Point2d &  p2  ) private 这是这个函数的调用关系图: