可下载各种地图，C#源码，按图层下载，包括arcgis,openstreetmap,googlemap-download kinds of map by c# SOURCE

Open Source Routing Machine （OSRM）计算图像中最短的路径。coherentlyIt被设计很好运行与地图数据Openstreetmap项目。-Open Source Routing Machine computes shortest paths in a graph. It was designed to run well with map data the Openstreetmap Project.