arc3P arcBulge arcTan arcToBezier bezier4P bezierIntersectionWithLine bezierIsStraight bezierPointDistantFromPoint bezierPointLengthFromStart bezierTanget bsplinesToBeziers crossLineCircle crossTwoCircles cubicSplines cubicSplineToBezier ellipse90ToBezier ellipseToBezier fitBezier FitCubicCallback fitCubicSpline fitCurve fitCurve2 fitCurve3 fitCurve4 gaussJordan lengthOfBezier PtCallback quadBezierToCubic roundRectToBeziers SplineFlags splitBezier triEquations

bsplinesToBeziers() int mgcurv::bsplinesToBeziers ( Point2d  points[], int  n, const Point2d *  ctlpts, bool  closed  ) static 得到三次B样条曲线的分段贝塞尔曲线段控制点 参数 [out] points 贝塞尔曲线的控制点，要预先分配(1+n*3)个点的空间 n B样条曲线控制点的点数，至少为4 ctlpts B样条曲线控制点坐标数组，点数为n closed 三次B样条曲线是否为闭合曲线 返回 实际转换的贝塞尔曲线控制点的个数 函数调用图: