摘要
根据WorldWind的插件扩展机制,研究了在WorldWind上显示网络瓦片地图的一些关键知识和技术,如网络瓦片地图使用的坐标投影、插件加载、下载瓦片的过程和本地文件缓存以及内存缓存等,最后实现了网络瓦片地图的插件,并提出优化瓦片地图的一些方法.
According to extension mechanism of the World Wind plugin, this paper studies some of knowledge and technology about displaying tile map, such as the tile map coordinates projection, the plug-in loaded, the download process of the tiles and the local file cache and memory cache etc., and finally achieves the the tile map plugin, and puts forward a number of methods to optimize the tile map
出处
《计算机系统应用》
2013年第4期178-181,共4页
Computer Systems & Applications
