以OSG为渲染平台，绘制三维管网，本程序在VC2003下调试通过-To OSG for the rendering platform, drawing three-dimensional pipe network, the program under the debugger through VC2003

DIRECT编程的实例，在VC++调试没有问题，对于初学者，可以很好的借鉴。-DIRECT programming examples, in VC++ debugger is no problem, for starters, can be a good reference.

OSG图形开发包，简单的调试程序，用于测试OSG是否成功配置！-OSG graphics development kit, a simple debugger for testing the success of the OSG configuration!