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Author: bingqixuan

README.md

@@ -19,4 +19,5 @@ GIS算法库
 - [rbush：一个高性能的基于JavaScript的R树的二维空间索引，用于点和矩形](https://github.com/mourner/rbush)
 - [Geometry Extrude: 一个小而快速的JavaScript库，用于将2D多边形和折线挤压成3D网格](https://github.com/pissang/geometry-extrude)
 - [random-volume-points：在给定几何体内生成随机3d点](https://github.com/nicknikolov/random-volume-points)
-- [spline-points：将3d路径细分为样条点](https://github.com/vorg/spline-points)
+- [spline-points：将3d路径细分为样条点](https://github.com/vorg/spline-points)
+- [获取二维折线的斜接法线，这对于在GPU的顶点着色器中展开粗线很有用](https://github.com/mattdesl/polyline-normals)