Data integration based on MapGIS and ASCII code files
ZHAO Hong-Yan1,2(), LI Cong3(), CHANG Qiu-Ling1, GUAN Xiao-Rong1, DU Cheng-Yuan4, CHEN Xin5, WANG Jing1
1. Henan Academy of Land Spatial Survey and Planning, Zhengzhou 450053, China 2. Key Laboratory for Dynamic Monitoring of Land Resources in Henan Province, Zhengzhou 450053, China 3. Henan Academy of Geology, Zhengzhou 450001, China 4. Ecological Environment Geo-Service Center, Henan Geological Bureau, Zhengzhou 450053, China 5. Zhongshui Northeast Survey and Design Research Co., Ltd., Changchun 130021, China
Data integration based on MapGIS includes data conversion, data normalization, data fusion, and related research. A synthesis of existing research suggests that data conversion has been intensively studied, while there is a lack in studies of data normalization and data fusion. This study improved the data normalization method based on the complex and extensively applied geological maps, achieving the normalized annotation and color filling for thousands of geobodies at one time. A technical process for data fusion was established by analyzing the applicable conditions of various commonly used methods for data fusion and making some supplementation. Besides, ASCII code files were prepared for mapping small coal pillars in batches. The results of this study show that improving the data normalization method, establishing the technical process for data fusion, and making full use of ASCII code files can significantly enhance the efficiency of data integration and broaden the mind for problem solving.
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doi: 10.16108/j.issn1006-7493.2019101
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