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

copy() virtual Geometry2D * copy ( void  ) const virtual 实现了 Curve2D.