| GIS权籍空间数据的存储与查询 |
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| 引用本文： | 许谷声,童小华.GIS权籍空间数据的存储与查询[J].计算机工程,2005,31(13):7-9,34. |
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| 作者姓名： | 许谷声 童小华 |
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| 作者单位： | 同济大学测量与国土信息工程系,上海,200092;同济大学测量与国土信息工程系,上海,200092 |
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| 基金项目： | 国家自然科学基金资助项目(40301043)，国家“863”计划基金资助项目(2002AA134050)，测绘遥感信息工程国家重点实验室开放研究基金资助项目(WKL(03)0301) |
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| 摘 要： | 探讨了基于关系型数据库存储XML权籍对象的方法和技术。分析了数据库存储XML数据的类型，论述了运用XML存储和管理权籍对象的可行性。基于GML规范建立了权籍对象的概念模型和逻辑模型，并根据XML权籍对象之间的关系，给出了将权籍对象转换到关系型数据库的方法，基于此实现了权籍对象空间关系的查询与应用。
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| 关 键 词： | 权籍空间数据 XML数据库 GML 查询 GIS |
| 文章编号： | 1000-3428(2005)13-0007-03 |
Storage and Query of GIS Cadastral Spatial Data |
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| XU Gusheng,TONG Xiaohua.Storage and Query of GIS Cadastral Spatial Data[J].Computer Engineering,2005,31(13):7-9,34. |
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| Authors: | XU Gusheng TONG Xiaohua |
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| Abstract: | A new approach on spatial data storage and query based on XML database is proposed. The feasibility of storing and querying spatial data based on XML database is first analyzed, the storage schema based on XML database is therefore presented. The conceptual and logical models of cadastral spatial objects are derived based on geography markup language (GML). The method of transferring spatial objects to relational XML database is given in detail. The application of topology queries of the spatial objects in XML database is further illustrated. The methods are tested by a case study, leading to the conclusions. |
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| Keywords: | Cadastral spatial data XML database Geography markup language(GML) Query GIS |
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