ArcofCircle2D ArcofCircle2D ArcofCircle2D calculateCircleCenter calculateStartandEndPoint copy getCenterPoint getDirection getEndAngle getEndPoint getExtrema getLength getMidPoint getRadius getStartAngle getStartPoint isClockWise isClosed isInArc mCenterPoint mClockWise mEndAngle mEndPoint mRadius mSecondPoint mStartAngle mStartPoint setCenterPoint setDirection setEndAngle setRadius setStartAngle

setCenterPoint() void setCenterPoint ( const Base::Vector2d &  pt ) 设置中心点 设置二维圆弧中心点 参数 [in] pt 中心点