copy findPointbyRate getEndPoint getLength getMidPoint getStartPoint isClosed LineSegment LineSegment mEndPoint mStartPoint Reverse setEndPoint setStartPoint

LineSegment() [2/2] LineSegment ( Base::Vector3d  startPoint, Base::Vector3d  endPoint  ) 创建三维直线段 基于起点和终点 参数 [in] startPoint 起点 [in] endPoint 终点