基于散点数据生成dem文件（virtual zuo 格式），同时完全模拟了dem数据绘制格网的算法（抗无效点(-9999.9)分析）,非基于opengl！-based on discrete data generated dem paper (virtual zuo format), while fully simulated dem data mapping grid algorithm (anti invalid points (-9999.9) Analysis) non-based op

根据三维点云散重建表面！ 是表面重建非常好的算法！-Surface Reconstruction from Scattered Points

计算几何中求散点的凸包，在opengl的环境中开发完成-Scatter in computational geometry convex hull of demand in the developed environment opengl