| 多源数据更新空间数据库的方法研究 |
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| 引用本文： | 高翔,袁超,瞿晓雯,张红文.多源数据更新空间数据库的方法研究[J].城市勘测,2009(4):10-13. |
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| 作者姓名： | 高翔 袁超 瞿晓雯 张红文 |
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| 作者单位： | 重庆市地理信息中心,重庆,401121 |
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| 基金项目： | 地理空间信息工程国家测绘局重点实验室经费资助 |
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| 摘 要： | 对如何利用各种来源的地理信息数据，更新城市基础空间数据库的方法进行了研究。在方法中，通过对各种数据源的分析，大体将数据源分为CAD及文本两大类，利用FME技术，分别实现对CAD及文本两大类数据的读取和转换，并结合dwg和xls两个示例，详细介绍了数据处理过程。本方法呈现出开放性、自动化程度高的特点，减少了人工劳动强度，极大地提高了数据库的更新质量及稳定性。
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| 关 键 词： | 多源 空间数据库 更新 方法 |
Research on Updating Method for Spatial Database Upon Heterogeneous Data Sources |
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| Gao Xiang,Yuan Chao,Qu XiaoWen,Zhang HongWen.Research on Updating Method for Spatial Database Upon Heterogeneous Data Sources[J].Urban Geotechnical Investigation & Surveying,2009(4):10-13. |
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| Authors: | Gao Xiang Yuan Chao Qu XiaoWen Zhang HongWen |
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| Affiliation: | ( Chongqing Geomatics Center, Chongqing 401121, China) |
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| Abstract: | In this paper, investigations have been down on the updating method of basic city spatial database upon heterogeneous geographic data sources. First, based on the preliminary analyzing, various data sources can be generally divided into 2 types, CAD and text. Then,we can read and transform these 2 data types based on the techniques of FME, the processing steps of which are illustrated in detail by 2 examples （ dwg and xls） separately. Comparing with traditional solutions, this 2-step updating method is more scalable and automatic. It saves human activity and improves the updating efficiency and stability to great extent when database is modified. |
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| Keywords: | Heterogeneous data sources spatial database update method |
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