| 基于球面剖分格网的矢量数据组织模型研究 |
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| 引用本文： | 关丽,程承旗,吕雪锋.基于球面剖分格网的矢量数据组织模型研究[J].地理与地理信息科学,2009,25(3). |
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| 作者姓名： | 关丽 程承旗 吕雪锋 |
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| 作者单位： | 北京大学遥感与地理信息系统研究所,北京,100871 |
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| 摘 要： | 针对球面剖分格网系统的优势和目前矢量数据存储方式存在的缺陷,提出基于球面剖分格网系统的矢量数据组织模型,以期更有效地存储和管理大范围多模式的矢量数据.主要讨论了矢量对象在不同格网层次下的剖分组织方法及其重构表达问题,并创新性地提出了球面矢量交换文件格式(SVE).同时,基于球面剖分格网系统设计了矢量数据的空间拓扑关系构建模式及多层次表达方式,为球面的矢量对象空间分析奠定了理论基础.
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| 关 键 词： | 球面剖分格网 矢量数据 组织模型 多层次表达 |
Study on the Organization Model for Vector Data Based on Global Subdivision Grid |
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| GUAN Li,CHENG Cheng-qi,LV Xue-feng.Study on the Organization Model for Vector Data Based on Global Subdivision Grid[J].Geography and Geo-Information Science,2009,25(3). |
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| Authors: | GUAN Li CHENG Cheng-qi LV Xue-feng |
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| Institution: | Institute of Remote Sensing and GIS;Peking University;Beijing 100871;China |
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| Abstract: | Global GIS is a system,which supports the huge data process and the global direct manipulation on global grid based on spheroid or ellipsoid surface.Global Subdivision Grid which has the open representation of multi-resolution,has even extension and supports great scale transformation is in the ascendant.In order to efficiently store,utilize,manage and analyze the huge global spatial data and location based service,alternatives to a global data model are urgently needed.According to the property of Global S... |
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| Keywords: | Global Subdivision Grid vector data organization model multi-layer representation |
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