A Method for Integrated Management of Geographical Information and Cartographic Data
A technology of cartographic data and geographic information, applied in geographic information databases, structured data retrieval, maps/plans/charts, etc., can solve the problems of inability to meet the requirements of cartography, mutual conversion difficulties, data redundancy, etc., and improve production and management level, improving drawing efficiency, and the effect of large degrees of freedom
Active Publication Date: 2020-02-11
西安测绘研究所
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Problems solved by technology
[0004] Geographic information and cartographic data are generally regarded as two separate sets of data. The former focuses on the management, query and analysis of geographic information, which cannot meet the requirements of cartography. The latter focuses on the accuracy and beauty of cartographic expression, and cannot take into account the needs of data analysis.
The main limitation of this mutual separation and non-correlation is: the two sets of data are stored and updated in a completely separate manner, and there are great difficulties in mutual conversion, and it is difficult to ensure the consistency of the two data, resulting in a large amount of data redundancy , which reduces the efficiency of map making and greatly increases the cost of map making
Method used
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[0057] Take the mapping data corresponding to the generation of road data as an example, as shown in the attached image 3 As shown, the left side of the figure shows two pieces of road data corresponding to geographic information. Driven by the cartographic rule set, it has undergone conventional symbolic expression (such as national road number boxes, road pavement symbols and road edge symbols), and cartographic annotation processing (such as " Lek 24 (26)") and capping relationship processing (for example, after marking the capped road surface and road sidelines, the road surface and sidelines need to be hidden) to generate the final drawing data, the effect is shown on the right of the attached figure. At the same time, the geographic information corresponding to the two roads is associated with the mapping data through the same FUID. Once the geographic information changes, the corresponding mapping data will be updated in tandem.
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The present invention relates to cartography, especially a method for integrated management of geographical information and cartography data used in digital maps and GIS (Geographic Information System, the same below), which can effectively solve the problem that geographic information and map cartography data are independent and mutually independent. The technical solution to the problems of irrelevance, difficulty in conversion, and difficulty in guaranteeing consistency is that geographic information is obtained after conventional symbolization, special cartographic effect processing, annotation configuration, and symbol conflict processing. Mapping data, the two establish the element-level association between geographical information and map drawing data in the database through the unique identification of elements, the present invention can effectively carry out integrated management of geographic information and map drawing data, and improve the production and management of geographic information Level.
Description
[0001] 1. Technical field [0002] The invention relates to map drawing, especially a method for integrated management of geographical information and map drawing data used in digital maps and GIS (Geographic Information System, the same below). [0003] 2. Background technology [0004] Geographic information and cartographic data are generally regarded as two separate sets of data. The former focuses on the management, query and analysis of geographic information, which cannot meet the requirements of cartography. The latter focuses on the accuracy and beauty of cartographic expression, and cannot take into account the needs of data analysis. . The main limitation of this mutual separation and non-correlation is: the two sets of data are stored and updated in a completely separate manner, and there are great difficulties in mutual conversion, and it is difficult to ensure the consistency of the two data, resulting in a large amount of data redundancy , which reduces the effi...
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IPC IPC(8): G06F16/29G09B29/00
CPCG06F16/29G09B29/003G09B29/007
Inventor 安晓亚刘平芝金澄王峰熊顺徐道柱焦洋洋
Owner 西安测绘研究所
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