BezierCurve2D BezierCurve2D BezierCurve2D copy getDegree getLength getMultiplicities getPeriodic getPoles getRational isClosed mDegree mMultiplicities mPeriodic mPoles mRational setDegree setMultiplicities setPeriodic setPoles setRational ~BezierCurve2D

getDegree() int getDegree ( ) const 获取阶数 获取二维贝塞尔曲线阶数