移动GIS切片地图展现技术

地图是GIS（地理信息系统）操作的入口，如何快速地显示地图是GIS首要考虑的问题．快速展现地图主要涉及到地图数据的组织和地图展现技术两方面的问题．目前，以谷歌地图为代表的商业地图软件大都采用地图切片的方式组织地图数据，这种方式被认为是快速且有效的．本文采用上述方式组织地图数据，使用切片并发控制技术和切片双缓存技术主要对移动GIS切片地图展现的相关技术进行研究，旨在提供一种快速展现切片地图的方法．基于本文的研究成果，作者分别在WindowsMobile和Android平台上实现了移动GIS系统，并成功应用于实际项目中．

Tile Map Display Technology of Mobile GIS

Map is the entry of GIS, it is the prime consideration that how to show map quickly. Rapid map display mainly relates map data organization and map display technology. Presently, most of business map software represented by google map use map tile to organize map data, it is thought to be fast and useful. Using foregoing methods to organize map data and using tile concurrency control and tile double buffer technology, this paper is mainly about the tile map display technologies of mobile GIS and the purpose is to provide a method for showing tile map quickly. Based on the research findings, the authors have developed mobile GIS systems in windows mobile and android platform respectively, and the systems have been used in actual projects successfully.