BSplineCurve2D BSplineCurve2D BSplineCurve2D copy getDegree getKnots getLength getMultiplicities getPeriodic getPoles getRational isClosed mDegree mKnots mMultiplicities mPeriodic mPoles mRational setDegree setKnots setMultiplicities setPeriodic setPoles setRational ~BSplineCurve2D

BSplineCurve2D() [2/3] BSplineCurve2D ( const std::vector< Base::Vector2d > &  Poles, const std::vector< int > &  Multiplicities, const int  Degree, const bool  Periodic = false  ) 构建一条2D B样条曲线 基于构造点，重数，阶数和是否为周期性曲线 参数 [in] Poles 构造点 [in] Multiplicties 重数 [in] Degree 阶数 [in] Periodic 是否为周期性曲线，默认为false，若为true，曲线首尾会自然衔接