用C++语言实现的各种计算几何算法, 如判断点是否在多边形内, 多边形凸凹性判断, 寻找点集凸包的卷包裹法,求简单多边形的重心,求从多边形外一点出发到该多边形的切线,判断线段是否相交等等! -Using C++ language implementation of a variety of computational geometry algorithms, such as point to determine whether the polygon, the polygon convexity

凸包算法的界面化实现，可以计算点集的凸包。-The interface of the convex hull algorithm to achieve, we can calculate the convex hull of point set.

多边形求并 还有凸包算法，填充颜色和求面积等-Polygons and there are convex hull algorithms, fill color, and for the area, etc.

一个根据点云计算显示凸包的算法，根据左旋定理，角度排序，提出非凸包点的算法 -computer points