| 利用GML模式映射屏蔽地理空间数据源的异构性 |
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| 引用本文： | 李军,苏国中,李萌.利用GML模式映射屏蔽地理空间数据源的异构性[J].测绘科学,2012(1):38-41. |
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| 作者姓名： | 李军 苏国中 李萌 |
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| 作者单位： | 武汉大学测绘学院;中国测绘科学研究院;武汉大学遥感信息工程学院 |
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| 基金项目： | 精密工程与工业测量国家测绘局重点实验室基金项目 |
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| 摘 要： | 本文分析了地理空间数据源的异构性以及GML模式的异构性;提出以GML模式对地理空间要素进行建模,构建适合空间信息共享的GML基本地物规范模式;通过应用模式的结构去屏蔽不同数据源结构的异构性,通过对应物属性去屏蔽编码语义的异构性,使空间信息的共享与互操作有统一的语义基础。
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| 关 键 词： | GML模式映射 空间信息共享 地物模式 空间数据建模 |
Shielding the heterogeneity of geospatial data sources by using GML schema mapping |
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| LI Jun①,SU Guo-zhong②,LI Meng.Shielding the heterogeneity of geospatial data sources by using GML schema mapping[J].Science of Surveying and Mapping,2012(1):38-41. |
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| Authors: | LI Jun① SU Guo-zhong② LI Meng |
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| Institution: | ③(①College of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China;②Chinese Academy of Surveying & Mapping,Beijing 100039,China;③College of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China) |
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| Abstract: | This paper analyzed the heterogeneity of spatial data sources and GML schema,the modeling method based on GML schema was proposed to model geography spatial features and construct basic feature criterion schema for spatial information share;application schema structure was used to shield the structural heterogeneity of different data sources,counterpart attributes were used to shield the heterogeneity of GML schema,therefore the semantic foundation for spatial information share and interoperation could be achieved. |
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| Keywords: | GML model mapping spatial information share feature schema spatial data modeling |
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