| 河道地形数据GIS入库方法 |
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| 引用本文： | 丁龙远,聂时贵,陶冬冬,赵崇亮.河道地形数据GIS入库方法[J].水利水电科技进展,2010,30(2):79-81. |
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| 作者姓名： | 丁龙远 聂时贵 陶冬冬 赵崇亮 |
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| 作者单位： | 1. 江苏省基础地理信息中心,江苏,南京,210013
2. 河海大学水文水资源学院,江苏,南京,210098 |
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| 摘 要： | 针对CAD河道地形数据的空间分析能力弱、使用范围窄等特点,采用GIS技术对CAD河道地形数据进行转换和入库。在数据转换和入库过程中对涉及的高程点数据获取、等高线高程确定、高程数据粗差探测等方面进行研究,实现了在少量人工质量控制的前提下高效率地将CAD河道地形数据向GIS数据自动转换与入库。该高程数据提取方法具有准确、快捷和实用的特点。
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| 关 键 词： | AutoCAD 河道地形数据 GIS 数据转换 数据入库 数据误差 |
| 修稿时间： | 2010/4/20 0:00:00 |
Import of river terrain data into GIS database |
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| DING Long-yuan,NIE Shi-gui,TAO Dong-dong,ZHAO Chong-liang.Import of river terrain data into GIS database[J].Advances in Science and Technology of Water Resources,2010,30(2):79-81. |
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| Authors: | DING Long-yuan NIE Shi-gui TAO Dong-dong ZHAO Chong-liang |
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| Affiliation: | DING Long-yuan1,NIE Shi-gui1,TAO Dong-dong2,ZHAO Chong-liang2 (1.Fundamental Geomatics Center of Jiangsu Province,Nanjing 210013,China,2.College of Hydrology , Water Resources,Hohai University,Nanjing 210098,China) |
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| Abstract: | With regard to the deficiencies of weak spatial analysis capacity and narrow application scope of CAD river terrain data,the CAD river terrain data were converted and imported by use of the GIS technology.The processing method to import the CAD river terrain data into the GIS database was studied,including the data acquisition of elevation points,the determination of elevation contours and the check of data errors.The automatic conversion and import of the CAD river terrain data into the GIS database were r... |
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| Keywords: | AutoCAD GIS |
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