Spline类就是Cardinal样条曲线了,这个类里面记录了4个控制点:m_startControlPoint, m_startPoint, m_endPoint, m_endControlPoint, 分别按顺序对应Pk-1, Pk, Pk+1, Pk+2, 由于Cardinal是用多个线段去模拟曲线,所以我们在这里取20个点,这样,在Pk 和 Pk+1之间,有20个样本点,用画直线的方法将这些点按顺序连起来,连成的曲线段就是我们所要的Cardinal 曲线了-Spline class is

Bspline曲线生成程序Catmull-Rom Spline, Lagrange, Natural Cubic Spline, and NURBS方法获得B样条曲线-Implementation of various mathematical curves that define themselves over a set of control points. The API is written in Java. The curves supported are: Bezier, B-Spl

利用Cardinal绘制样条曲线。传入控制点坐标生成插值点坐标-Cardinal Line