copy Ellipse2D Ellipse2D getCenterPoint getLength getMajorAxisDir getMajorRadius getMinorRadius isClosed mCenterPoint mMajorAxisDir mMajorRadius mMinorRadius setCenterPoint setMajorAxisDir setMajorRadius setMinorRadius ~Ellipse2D

getCenterPoint() Base::Vector2d getCenterPoint ( ) const 获取圆心 获取二维椭圆的圆心