calculateBorders clone DxfLine DxfLine getAngle1 getAngle2 getDirection1 getDirection2 getEndPoint getLineType getMiddlePoint getStartPoint m_EndPoint m_LineType m_Scale m_StartPoint move rotate setEndPoint setLineType setScale setStartPoint writeDxf ~DxfLine

writeDxf() virtual void writeDxf ( dxfW *  writer ) overridevirtual 写dxf文件 重载 DxfEntity .