| 超高分辨GIS信息显示技术 |
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| 引用本文： | 刘其军,罗明宇,付燕平,归强. 超高分辨GIS信息显示技术[J]. 计算机系统应用, 2015, 24(2): 253-256 |
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| 作者姓名： | 刘其军 罗明宇 付燕平 归强 |
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| 作者单位： | 广东粤铁瀚阳科技有限公司,广州,510630 |
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| 基金项目： | 广东省科技计划(2012A080102003);广东省省部产学研结合项目(2012B090500012) |
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| 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、OpenGL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。
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| 关 键 词： | 超高分辨 GIS 集群 拼接显示 |
| 收稿时间： | 2014-05-29 |
| 修稿时间： | 2014-06-23 |
Display Technologies on Ultra-high Resolution GIS Information |
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| LIU Qi-Jun,LUO Ming-Yu,FU Yan-Ping and GUI Qiang. Display Technologies on Ultra-high Resolution GIS Information[J]. Computer Systems& Applications, 2015, 24(2): 253-256 |
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| Authors: | LIU Qi-Jun LUO Ming-Yu FU Yan-Ping GUI Qiang |
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| Affiliation: | Guangdong Railway & Sun Technology Co. Ltd, Guangzhou 510630, China;Guangdong Railway & Sun Technology Co. Ltd, Guangzhou 510630, China;Guangdong Railway & Sun Technology Co. Ltd, Guangzhou 510630, China;Guangdong Railway & Sun Technology Co. Ltd, Guangzhou 510630, China |
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| Abstract: | 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 etc 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. |
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| Keywords: | ultra-high resolution GIS cluster tiled display system |
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