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

getMajorRadius() double getMajorRadius ( void  ) const 获取主轴半径 获取三维椭圆的主轴半径 返回 主轴半径