| 基于XML的地理空间元数据管理 |
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| 引用本文： | 陈尹军,卞正富,王一冒.基于XML的地理空间元数据管理[J].海洋测绘,2009,29(5):64-66. |
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| 作者姓名： | 陈尹军 卞正富 王一冒 |
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| 作者单位： | 中国矿业大学,环境与测绘学院,江苏省资源环境信息工程重点实验室,江苏,徐州221008 |
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| 摘 要： | 论述了地理空间元数据及元数据标准在地理空间数据共享中的重要作用，分析了空间元数据格式的技术要求，引入网络环境中的标准文本格式XML及其相关技术，显示应用XML进行空间元数据管理的优势。以地理信息一元数据标准为例，介绍规定数据类型及格式要求的XML Schema文件，并用于对存储元数据的XML文档进行有效性检查。设计XSL文件实现XML文档的树状嵌套输出样式。元数据编辑器通过DOM解析XML文档中的元素节点进行数据更新、添加、删除操作，实现对元数据的管理。
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| 关 键 词： | 可扩展置标语言 空间元数据标准 元数据管理 |
Spatial Metadata Management Based On XML |
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| CHEN Yin-jun,BIAN Zheng-fu,WANG Yi-mao.Spatial Metadata Management Based On XML[J].Hydrographic Surveying and Charting,2009,29(5):64-66. |
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| Authors: | CHEN Yin-jun BIAN Zheng-fu WANG Yi-mao |
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| Institution: | ( School of Environment Science and Spatial Informatics, Jiangsu Key Laboratory of Resource and Environmental Information Engineering, China University of Mining and Technology, Xuzhou, Jiangsu,221008 ) |
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| Abstract: | Spatial data metadata plays an important role in data sharing, as more and more attention is paid to it, several famous international spatial metadata standards have been setup. Spatial data metadata has its own special format requirement, files and database were used to store and manage it, but as the development of XML, it displays its advantages in spatial metadata management. An application case was shown in this paper. XML Schema is designed to form the data type and format of the metadata and it can also be used to check the validity of the spatial metadata XML file. XSL is used to form the output stylesheet of the XML file. DOM is a general means to parse XML file into elements and play update, add and delete operations on the XML file, to reach the aim of spatial metadata management. |
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| Keywords: | XML spatial metadata standard metadata management |
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