| 基于嵌入式GIS的地图显示算法研究 |
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| 引用本文： | 赵宇峰,孙伟华,王建国.基于嵌入式GIS的地图显示算法研究[J].计算机与数字工程,2011,39(3):41-43. |
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| 作者姓名： | 赵宇峰 孙伟华 王建国 |
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| 作者单位： | 西安工业大学计算机科学与工程学院网络与信息工程系,西安,710032 |
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| 摘 要： | 随着嵌入式GIS的不断发展,GIS的功能也不断完善,但一幅地图的数据量很大,不能把地图的信息全部显示在屏幕区域,因此提出了一种利用数据压缩算法减少数据存储空间和改进的QR树算法建立空间索引的方法,改善了嵌入式GIS地图的显示效果.
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| 关 键 词： | GIS 嵌入式 数据压缩 QR树 空间索引 |
Research on Map Showing Algorithm Based on Embedded GIS |
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| Zhao Yufeng,Sun Weihua,Wang Jianguo.Research on Map Showing Algorithm Based on Embedded GIS[J].Computer and Digital Engineering,2011,39(3):41-43. |
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| Authors: | Zhao Yufeng Sun Weihua Wang Jianguo |
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| Affiliation: | Zhao Yufeng Sun Weihua Wang Jianguo(Department of Network and Information Engineering,Institute of Computer Science and Engineering,Xi’an Technological University,Xi’an 710032) |
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| Abstract: | With the development of embedded GIS technology,the function of GIS has been improved,but the volume of data is still large,which has caused us not to show all of the information in the equipment screen at a time,so make use of data compression algorithm to reduce storage space and modified QR-tree named QR-tree to build the spatial index,in order to improve the showing efficiency of embedded GIS maps. |
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| Keywords: | GIS |
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