凸包最常用的凸包算法是Graham扫描法和Jarvis步进法.本程序用Graham扫描法实现凸包的绘制-convex hull of the most commonly used convex hull algorithm is scanning and Graham Jarvis stepping law. The procedures used G raham scanning method to achieve the convex hull mapping

基于VC++6.0环境编写， TIN生成算法是DEM的重要算法之一， 提供从离散点生成TIN的凸包收缩方法, 可以保存生成的点跟线的自定义的文本文档， 程序仅供参考-Based on VC++6.0 environment for the preparation of. TIN is generated from a point to provide the convex hull of contraction method , Can save th

空间分析算法的实现，包括道格拉斯算法、角度限差算法、最小凸包等-Realization of spatial analysis algorithms, including the Douglas algorithm, angle tolerances algorithm, the minimum convex hull