这篇文章里的代码的C#版本（穿过已知点画平滑曲线（3次贝塞尔曲线）

最新推荐文章于 2024-01-12 10:25:55 发布

原创

最新推荐文章于 2024-01-12 10:25:55 发布 · 1.1k 阅读

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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

原文的原文：http://agg.sourceforge.net/antigrain.com/research/bezier_interpolation/index.html#PAGE_BEZIER_INTERPOLATION

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