vc 求三维模型的测地线距离的算法，希望对大家有帮助,vc for three-dimensional model of the geodesic distance algorithm, we want to help

完整的网格上求最短路径线算法，带工程文件，可以直接编译通过(The shortest path line algorithm is obtained on a complete grid, with engineering files, which can be compiled and passed directly.)