Multi-scale display of point data sets at the client side
文献类型：会议论文
| 作者 | Wang, Tianbao(王天宝) ; Zhong, Ershun ; Lu, Hao ; Zheng, Huaihai |
| 出版日期 | 2010 |
| 会议名称 | 2010 18th International Conference on Geoinformatics, Geoinformatics 2010 |
| 会议日期 | June 18, 2010 - June 20, 2010 |
| 会议地点 | Beijing, China |
| 关键词 | Adaptive algorithms Geographic information systems Visualization |
| 通讯作者 | Wang, Tianbao(王天宝) |
| 英文摘要 | Multi-scale representation of geographic features is one of the research focuses of Geographic Information System (GIS). Most of the work has been done at the server side, especially when dealing with massive lines and polygons data by using spatial database technology. This paper discusses the issue about multi-scale display of point data sets, and presents a solution which is implemented at the client side. This solution overcomes the problem of losing some points of interest and their attribute. It also promotes the efficiency of displaying large point dataset with limited pixels. First, we process the level of details at the client side to avoid communicating with the server side at every scale but only at the first process. This strategy greatly decreases the time consumption in querying the server and network transmission. Second, when doing multi-scale manipulations at the server side (including spatial database), some points at certain scales will lose; some points more or less at certain scales will be disposed. However, by processing at the client side, because it contains all of the point data sets, this problem is solved. At last, this paper designs an adaptive algorithm to resolve the contradiction between small screen area and large point data sets with the tedious overlap phenomenon in displaying. A case study verifies the optimized display effect and improved efficiency of the proposed approach. |
| 收录类别 | EI |
| 会议主办者 | IEEE GRSS; The Geographical Society of China |
| 会议录 | 2010 18th International Conference on Geoinformatics, Geoinformatics 2010
 |
| 会议录出版者 | IEEE Computer Society |
| 会议录出版地 | 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States |
| 语种 | 英语 |
| ISBN号 | 9781424473021 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/21929]  |
| 专题 | 地理科学与资源研究所_研究生部 |
| 推荐引用方式 GB/T 7714 | Wang, Tianbao,Zhong, Ershun,Lu, Hao,et al. Multi-scale display of point data sets at the client side[C]. 见:2010 18th International Conference on Geoinformatics, Geoinformatics 2010. Beijing, China. June 18, 2010 - June 20, 2010. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。