| 基于对象关系数据库的矢栅一体化查询与操作研究 |
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| 引用本文： | 尹双石,刘洋,方裕,陈斌,田晓婷,刘泽洋.基于对象关系数据库的矢栅一体化查询与操作研究[J].地理与地理信息科学,2009,25(4). |
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| 作者姓名： | 尹双石 刘洋 方裕 陈斌 田晓婷 刘泽洋 |
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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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| 基金项目： | 国家863计划项目(2007AA120502) |
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| 摘 要： | 在分析矢量栅格数据特点的基础上,提出一系列矢栅一体化查询函数,基于PostgreSQL/PostGIS数据库,实现了支持栅格数据存储与组织的扩展数据类型,并对栅格数据类型与PostGIS矢量数据一体化查询函数进行了扩展实现。最后,通过实例验证了矢栅一体化查询函数的表达能力和解决实际问题的应用前景。
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| 关 键 词： | 矢栅一体化 栅格数据 空间数据库扩展 PostGIS |
Research on Integrated Operation of Vector and Raster Data in Object-Relational Database |
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| YIN Shuang-shi,LIU Yang,FANG Yu,CHEN Bin,TIAN Xiao-ting,LIU Ze-yang.Research on Integrated Operation of Vector and Raster Data in Object-Relational Database[J].Geography and Geo-Information Science,2009,25(4). |
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| Authors: | YIN Shuang-shi LIU Yang FANG Yu CHEN Bin TIAN Xiao-ting LIU Ze-yang |
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| Institution: | Institute of Remote Sensing & GIS;Peking University;Beijing 100871;China |
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| Abstract: | Nowadays,spatial database is the most important way of storing and organizing vector data in GIS applications.While the raster data,which is also a major source of spatial information,is primarily stored as data files because of the intrinsic complexity and huge size.Some GIS and database software vendors began to support raster data in their database products,but only data storage and organization is concerned.Currently,there is not an accepted standard specification for the integrated operation on vector ... |
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| Keywords: | raster and vector integration raster data spatial database extension PostGIS |
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