| MapGIS图像分析系统在区域重力点设计图制作中的应用 |
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| 作者姓名： | 杨胜发 张西君 王芳 |
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| 作者单位： | 1.贵州省地质调查院,贵阳 550018;2.贵州省地质物探开发应用工程技术研究中心,贵阳 550018 |
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| 基金项目： | 中国地质调查局“四川1∶25万泸州市、正安县幅基础地质调查修测(编号: 12120114009801)”项目资助 |
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| 摘 要： | 为提高区域重力点设计的进程,扫描1:5万地形图作为地理工作底图,再利用MapGIS软件"图像处理"模块和"图像分析"模块等功能,对扫描的光栅图像进行格式转换和标准图幅的误差校正,并在校正后的光栅图像上设计重力点,最终得到与实际位置对应较好的重力点设计图。研究表明,该方法简单、快速、质量高,便于系统及时提取和数字化管理重力点。
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| 关 键 词： | MapGIS 制图 区域重力 设计点位 |
| 收稿时间： | 2016-10-09 |
Application of MapGIS image analysis system in making design drawing of regional gravity points |
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| Authors: | YANG Shengfa ZHANG Xijun WANG Fang |
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| Institution: | 1.Geological Suruey of Guizhou Province, Guiyang 550018, China;2.Guizhou Engineering Research Center of Geological and Geophysical Developing Application, Guiyang 550018, China |
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| Abstract: | In order to improve the design processes of regional gravity points,the authors took a scanned 1∶50 000 topographic map as the geographic base map, transformed the format of the scanned raster images, corrected the error of the standard map through the image processing and image analysis function module of MapGIS software, and designed the gravity points on the corrected raster image. The design drawing of regional gravity points corresponded with the actual positions. The research shows that the method is simple, rapid and of high-quality, and also convenient in timely extraction and digital management in the system. |
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| Keywords: | MapGIS drawing regional gravity designing points |
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