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

getPoint() Point2d MgPath::getPoint ( int  index ) const 得到节点坐标，超过点数则取余数 这是这个函数的调用关系图: