copy Ellipse Ellipse getCenterPoint getLength getMajorAxisDir getMajorRadius getMinorRadius getNormal isClosed mCenterPoint mMajorAxisDir mMajorRadius mMinorRadius mNormal Reverse setCenterPoint setMajorAxisDir setMajorRadius setMinorRadius setNormal ~Ellipse

getCenterPoint() Base::Vector3d getCenterPoint ( ) const 获取圆心 获取三维椭圆的圆心