| 面向"数字城市"多源数据的空间数据立方体空间度量研究 |
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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空间度量研究[J].地理与地理信息科学,2007,23(2):22-25. |
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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
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浙江省宁波市科技局资助项目 |
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| 摘 要： | 叙述了面向“数字城市”多源数据的空间数据立方体空间度量的基本定义;描述了空间度量的聚集概念,并结合具体的图例阐述了点状、线状、面状空间度量的聚集过程;解释了空间数据立方体维上钻、维下翻、维层次上钻、维层次下翻的空间度量聚集操作基本原理。
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| 关 键 词： | GIS 空间数据立方体 空间度量 多源数据 |
| 文章编号： | 1672-0504(2007)02-0022-04 |
| 修稿时间： | 2006年11月2日 |
The Aggregation of Spatial Measure in Spatial Data Cube on Multi-Source Data for"Digital City" |
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| ZOU Yi-jiang.The Aggregation of Spatial Measure in Spatial Data Cube on Multi-Source Data for"Digital City"[J].Geography and Geo-Information Science,2007,23(2):22-25. |
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| Authors: | ZOU Yi-jiang |
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| Abstract: | Spatial measure is an important concept in spatial data cube,it can meet demand of multi-source data and dynamic spatial analysis for "Digital City".This paper gives a definition of spatial measure on spatial data cube for multi-source data on "Digital City",and describes basic concept of aggregation on spatial measure,and explains aggregation process of point spatial measure,line spatial measure,area spatial measure by legend,and states basic aggregation principle of spatial measure,and expresses foundational analysis method of dimension roll-up,dimension drill-down,dimension hierarchy roll-up and dimension hierarchy drill-down for spatial measure in spatial data cube.So,it plays an important role for spatial measure to construct "Digital City". |
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| Keywords: | GIS spatial data cube spatial measure multi-source data |
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