Tile loading method for 2.5-dimensional map service

The invention discloses a tile loading method for 2.5-dimensional map service. The method comprises a map service application display device, a 2.5-dimensional map service application module and a map service module. The 2.5-dimensional map service application module calls the map service module, needed map tiles are retuned, and the map tiles are loaded and displayed on the display device. The map service module calculates requested minimum tile set through the tile scanning algorithm on the basis of map view window pitching and rotary changes, and sends tile loading service requests to a server side, and the server returns a tile service response. The tile scanning algorithm can rapidly scan and calculate the number and the range of the minimum tiles which need to be loaded during 2.5-dimensional map service, and therefore the purposes of fast loading and map browsing are obtained.