bulge calculateBorders clone DxfArc getAngle1 getAngle2 getAngleLength getAnticlockwise getBulge getCenter getDirection1 getDirection2 getEndPoint getLength getMiddlePoint getRadius getStartPoint isReversed m_Angle1 m_Angle2 m_Anticlockwise m_CenterPoint m_MinRadius m_Radius m_Reversed move reverseAngle1AndAngle2 rotate setAngle1 setAngle2 setAnticlockwise setCenter setRadius writeDxf ~DxfArc

getBulge() double getBulge ( ) const virtual 返回 获取圆弧的凸起（角度长度除以4的切线）. 重载 DxfEntity .