来自:https://blog.youkuaiyun.com/microchenhong/article/details/6316332
真正的原文:https://www.cnblogs.com/muxue/archive/2010/06/23/1763886.html
没时间研究,先翻译过来
Point类用的是wpf里的Point,就是里面有double类型的X,Y,没有其他依赖
void createCurve(Point[] originPoint, int originCount, List<Point> curvePoint)
{
//控制点收缩系数 ,经调试0.6较好
double scale = 0.6;
Point[] midpoints = new Point[originCount];
//生成中点
for (int i = 0; i < originCount; i++)
{
int nexti = (i + 1) % originCount;
midpoints[i].X = (originPoint[i].X + originPoint[nexti].X) / 2.0;
midpoints[i].Y = (originPoint[i].Y + originPoint[nexti].Y) / 2.0;
}
//平移中点
Point[] extrapoints = new Point[2 * originCount];
for (int i = 0; i < originCount; i++)
{
int nexti = (i + 1) % originCount;
int backi = (i + originCount - 1) % originCount;
Point midinmid = new Point();
midinmid.X = (midpoints[i].X + midpoints[backi].X) / 2.0;
midinmid.Y = (midpoints[i].Y + midpoints[backi].Y) / 2.0;
double o

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