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

setMajorAxisDir() void setMajorAxisDir ( Base::Vector2d  newdir ) 设置主轴方向 设置二维椭圆的主轴方向 参数 [in] newdir 主轴方向