addSVGPath append arcTo arcTo beziersTo bezierTo clear closeFigure copy crossWithPath genericRoundLines getCount getEndPoint getEndTangent getLength getNodeType getPoint getPoints getStartPoint getStartTangent getSubPathCount getTypes horzTo isClosed isCurve isLine isLines linesTo lineTo m_data MgPath MgPath MgPath MgPath moveTo quadsTo quadTo reverse scanSegments setPath setPath setPoint smoothBezierTo smoothQuadTo startFigure transform trimStart vertTo ~MgPath

crossWithPath() bool MgPath::crossWithPath ( const MgPath &  path, const Box2d &  box, Point2d &  ptCross  ) const 求两个路径的交点 函数调用图: 这是这个函数的调用关系图: