四元树算法在地理国情普查生产管理系统中的应用 |
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引用本文: | 李镇洲,张学之,赵铁锋.四元树算法在地理国情普查生产管理系统中的应用[J].东北测绘,2014(6):69-71,74. |
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作者姓名: | 李镇洲 张学之 赵铁锋 |
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作者单位: | 黑龙江地理信息工程院,黑龙江哈尔滨150081 |
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基金项目: | 黑龙江测绘地理信息局基础测绘科技项目(201301-3)资助 |
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摘 要: | 地理国情普查生产管理系统中采用Web地图管理结合表,地图在浏览器中的显示受到浏览器和网络的限制,地图整幅显示加载速度慢,用户体验不好,利用金字塔瓦片地图技术在服务器端预先生成不同级别的瓦片,提高地图的生成、发布、显示和浏览效率,减轻了服务器负载和网络传输负担。利用四元树算法管理金字塔瓦片地图的瓦片索引,在不同缩放比例请求下,能够快速、准确地找到瓦片并显示。
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关 键 词: | 地理国情普查 四元树算法 数据生产 结合表 |
Application of Quadtree Algorithm in National Geographic Condition Survey Data Processing Management System |
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Institution: | LI Zhen - zhou, ZHANG Xue - zhi, ZHAO Tie - feng (Heilongjiang Institute of Geomatics Engineering, Harbin 150081, China) |
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Abstract: | Web map is used in index diagram of geomatics information data processing management system .Map displayed in a browser by browser and network limitations .The entire map which is displayed loads slowly with a bad user experience .Pyramid tile map using the technology on the server side pre -generated tiles of different levels to improve the generation of maps , publish, display and browsing efficiency , reduce server load and network traffic load .Quadtree algorithm using the management pyramid tile map tile index, at the request of a different scale to quickly and accurately locate and display tiles . |
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Keywords: | national geographic condition survey quadtree algorithm data processing index diagram |
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