A 3D-Enabled View Base Class for SDI Direct3D Development.支持点d3d环境的sdi环境

通过两个距离场的共同约柬来快速地提取出一条连接起点和终点的中心路径．同时为了保证褪游的效果．还采用3次B样条曲线对所获取的路径进行了光滑-As compared with onion peeling algorithm and Dijkst ra’s Single Source Shortest Path Algorithm、the result shows that the algorithm not only cart get last speed and high quality re