ArcofCircle ArcofCircle ArcofCircle ArcofCircle calculateCircleCenter calculateStartandEndPoint copy getArcType getCenterPoint getDirection getEndAngle getEndAngle getEndPoint getExtrema getLength getMidPoint getNormal getRadius getRefVec getSecondPoint getStartAngle getStartPoint isClockWise isClosed isInArc mArcType mCenterPoint mClockWise mEndAngle mEndPoint mMidpoint mNormal mRadius mRefVec mSecondPoint mStartAngle mStartPoint Reverse setCenterPoint setDirection setEndAngle setNormal setRadius setReferenceAxis setRefVec setStartAngle

ArcofCircle() [2/4] ArcofCircle ( const Base::Circle &  circle, const double  angle1, const double  angle2  ) 构造一个圆弧，基于一个已有的圆对象和圆上的两个角度（起始角度、终止角度） 参数 [in] circle 圆对象，提供圆心、半径、法向量等信息 [in] angle1 起始角度 [in] angle2 终止角度