Method for automatically publishing data in unified coordinate system and computer program product
A computer program and automatic release technology, applied in the field of WebGIS, can solve the problems of low efficiency of data release
Pending Publication Date: 2020-10-23
云南电网有限责任公司信息中心
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[0004] The present invention designs a method so that the coordinate systems of all data in GIS can be converted uniformly at one time, and then the data is automatically released through a specific interface, which greatly improves the work efficiency and solves the problem of low data release efficiency due to inconsistent coordinate systems in WebGIS question
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[0029] This embodiment is according to the method in the content of the present invention and see figure 1 , the unified coordinate system of the present invention carries out a kind of specific implementation flowchart of data automatic distribution method as follows:
[0030] (1) The core coordinate system is selected as the target coordinate system with unified coordinates. In this example, wgs84 is selected as the core coordinate system;
[0031] (2) Pre-write the conversion function, which covers all the coordinates involved in the unification of coordinates. The conversion functions are mainly divided into two categories, namely coordinate conversion (projection) under the same ellipsoid and coordinate conversion under different ellipsoids ( Seven parameters), first add several typical coordinate systems to the conversion function library, and write conversion functions for converting them to wgs84;
[0032] (3) Input the path of the shapefile file, obtain the data set ...
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The invention discloses a method for automatically publishing data in a unified coordinate system and a computer program product. The method comprises the following steps: (1) determining a core coordinate system; (2) pre-writing the conversion function, dividing the conversion function into the same ellipsoid and different ellipsoids, writing the conversion function of the same ellipsoid according to the projection principle, wherein the conversion functions of the different ellipsoids need to be converted into a space rectangular coordinate system, correspondingly converted into a target space rectangular coordinate system through seven parameters and then converted into a target coordinate system; (3) inputting a pre-conversion coordinate system, and enabling the pre-conversion coordinate system to correspond to the conversion function to complete coordinate system unification; (4) calling a Rest interface in the Geoserver; (5) creating a working area; (6) creating data storage; and(7) publishing the layer. The unified target coordinate system is set for the situation that multiple coordinate systems are to be converted, unified conversion is conducted on the target coordinatesystem, automatic data release is conducted, conversion results can be directly called and displayed, and the working efficiency is greatly improved.
Description
technical field [0001] The invention relates to a method for automatically publishing data in a unified coordinate system and a computer program product, belonging to the technical field of WebGIS. Background technique [0002] In recent years, with the popularization of the Internet and the development of GIS technology, the development and application of WebGIS at home and abroad have entered a new stage. In the process of WebGIS development and application, data release is often involved, and there will be coordinates in the release of data. The problem of inconsistency. [0003] The traditional solution is to use the projection tool in the ArcGIS toolbox to convert the coordinate system to achieve unity, or to realize the coordinate conversion sequentially based on the GIS secondary development tool, and then release the data through manual configuration operations. This method is relatively inefficient. When When there are multiple different coordinate systems, it is n...
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IPC IPC(8): G06F16/909G06F16/9537G06F16/958
CPCG06F16/909G06F16/9537G06F16/958
Inventor 李申章赵志宇马文黄祖源田园李辉
Owner 云南电网有限责任公司信息中心