用于构建海量地形三角网，东西很不错，具有很大借鉴意义-Used to build the massive terrain triangulation network, something very good, has a great significance

此文档是我学习OSG做的技术总结报告，详细讲解了OSG、OSGearth的编译，开发，osg原理，视点变换矩阵、全球地形解决方案等。-This document is do I learn OSG technical summary report, a detailed account of OSG, compiled OSGearth, development, osg principle viewpoint transformation matrix, the global terrain

RADAN is a logiciel who can make terrain in 3 demension but it needed cle

指导四足机器人在崎岖地形上行走时的控制程序编写(Legged structure enables quadruped robot to take advantage of the discrete regions that can support walking in the terrain, so it can adapt well to irregular or rugged terrain, which makes quadruped robot has broad appli