| 面向数字城市多源数据的空间数据立方体数据组织研究 |
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| 引用本文： | 邹逸江. 面向数字城市多源数据的空间数据立方体数据组织研究[J]. 计算机应用研究, 2008, 25(5): 1461-1464 |
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| 作者姓名： | 邹逸江 |
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| 作者单位： | 宁波大学,建筑工程与环境学院,浙江,宁波,315211 |
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| 基金项目： | 国家自然科学基金 , 浙江省宁波市科技局资助项目 |
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| 摘 要： | 定义了面向数字城市多源数据的空间数据立方体地理空间维、专题维和时间维分别包含的数据种类和内容;设计了它们的维和维层次数据结构;表述了地理空间维、专题维和时间维在概念层次上和物理层次上构成空间数据立方体的方法;确定了地理空间维、专题维和时间维数据的多维数组组织方法,以及多维数据的数据文件和虚拟内存存储策略;表达了多维数组中记录间的关联运算和多维数组的压缩方法。
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| 关 键 词： | 地理信息系统 空间数据立方体 多维数组 多源数据 |
| 文章编号： | 1001-3695(2008)05-1461-04 |
| 收稿时间： | 2008-04-20 |
| 修稿时间： | 2007-01-30 |
Data organization of spatial data cube on multi source data for digital city |
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| ZOU Yi jiang. Data organization of spatial data cube on multi source data for digital city[J]. Application Research of Computers, 2008, 25(5): 1461-1464 |
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| Authors: | ZOU Yi jiang |
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| Abstract: | This paper defined multi-source data for digital city,data classification and data content,respectively contained by geospatial dimension,thematic dimension and time dimension of spatial data cube.It described the geospatial dimension,thematic dimension,time dimension structure and their dimension hiberarchy structure.The method that geospatial dimension,thematic dimension,time dimension together make up spatial data cube was expressed by conceptual and physical mode.Also,the data organization based on multi-dimension array and data storage based on data file and virtual memory on geospatial dimension data,thematic dimension data and time dimension data were explained.The associational operation between records in multi-dimension array and compress method of multi-dimension array were stated. |
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| Keywords: | GIS spatial data cube multi-dimension array multi-source data |
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