超高分辨GIS信息显示技术  

Display Technologies on Ultra-high Resolution GIS Information

作　　者：刘其军 罗明宇 付燕平 归强 

机构地区：[1]广东粤铁瀚阳科技有限公司,广州510630

出　　处：《计算机系统应用》2015年第2期253-256,共4页Computer Systems & Applications

基　　金：广东省科技计划(2012A080102003);广东省省部产学研结合项目(2012B090500012)

摘　　要：为解决海量GIS地图信息显示分辨率高、处理难度大等问题,研究了集群并行显示、WMS服务、GIS渲染显示等技术,提出了以计算机集群并行计算为基础构建集群并行GIS拼接显示系统,采用WMS并行获取GIS数据信息、地图投影变换处理数据、Open GL并行纹理渲染,进而实现GIS数据的超高分辨显示.实验结果表明,提出的集群并行GIS拼接显示系统可极大地提高地图显示分辨率、为海量GIS地图的超高分辨显示提供了可行的解决方案.To overcome difficulties in processing and implement the ultra-high resolution GIS map information display, technologies such as cluster parallel processing, WMS services, GIS rendering ere are researched in this paper. A cluster-based GIS tiled display system is presented. Parallel WMS access technology is used to get GIS data, projection transformation is discussed to process map data. And OpenGL texture rendering method is researched to parallel display. Thus, ultra-high resolution GIS data is displayed on the tiled screen. The experimental results show that the cluster-based GIS tiled display system presented is feasible and can greatly improve the display resolution of map.

关 键 词：超高分辨 GIS 集群 拼接显示 

分 类 号：P208[天文地球—地图制图学与地理信息工程]