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

quadTo() bool MgPath::quadTo ( const Point2d &  cp, const Point2d &  end, bool  rel = false  ) 添加绘制二次贝塞尔曲线到新位置的指令节点 这是这个函数的调用关系图: