一个大规模地形现实和纹理映射的程序，从国外网站下载的，一般的机器根本跑不动，标准C编写，多平台可编译，供大家学习。-a large-scale topographic reality and texture mapping procedures from abroad website and general machinery simply could not, the standard C preparation, multi-platform can be compiled for the

是C++实现的四叉树索引可以实现2D、3D图像的插入、删除、查找，源码使用使用C++11标准实现的。值得学习。-C++ implementation of the four binary tree index can achieve 2D, 3D images of the insert, delete, search, the use of source code to achieve the use of C++11. Worth learning.