一个缓冲区演示学习的例子(DEMObuffer),使用与初学着,OK-a buffer demonstration study examples (DEMObuffer), and learning to use, OK

缓冲区分析框架，用户可在此基础上进一步实现各种缓冲区操作，如点的缓冲区、面的缓冲区、线的缓冲区-Analytical fr a mework for the buffer zone, the user can further the realization of various buffer operations, such as the point of the buffer zone, the buffer surface, the