TreeView 中节点拖动、增加、删除等功能演示。-TreeView nodes Drive, addition, deletion function demo.

direct3d实现的场景图管理，可任意的添加节点

读取微软的DirectX使用的 .x 文件，能够获得.X文件中每一个节点的数据（如Mesh中每一个点的坐标）。需要DirectX的环境才能编译运行。-Read Microsoft s DirectX use. X files, can be. X document, each node of data (such as Mesh in the coordinates of each point). DirectX environment need to be able to run the co

用MFC生成四叉树的方式，主要通过建立一个向量来储存节点的坐标。-Generated by MFC quadtree approach, mainly through the establishment of a vector to store the coordinates of the node.