电子地图海量专题要素麻点图技术研究

针对JavaScript成为目前Web电子地图开发的主流技术,而浏览器能承载的数据量和JavaScript的渲染能力有限的问题,该文通过对基于栅格图片的模式和基于插件的矢量数据模式的对比分析后,基于矢量瓦片技术、空间搜索技术和实时渲染技术等关键技术,提出了对海量专题要素进行服务端与客户端协同处理、实时分级渲染的麻点图技术方案,实现了海量专题要素的实时渲染和即时交互,并应用在"天地图·陕西"电子地图系统中。

Research on the marker map technology of the mass thematic data on electric map

The application of JavaScript is wider and wider with the development of HTML5 technology.JavaScript technology has become the main technology for web electric map developing.But it is necessarily resolved for developing JavaScript electric map to real-time render the mass thematic data.After analyzed and compared of raster pattern and plug-in pattern,the paper proposed the marker map technology scheme of synergistically dealing with mass thematic data between server and client and real-time rendering mass thematic data,through the analysis of the vector tile technology,spatially searching technology and real-time rendering technology research,realize the real-time rendering and real time interaction of mass thematic data,and applied in the electronic map system of "Map World Shaanxi",greatly improve the user experience.