Method and device for thinning administrative area data

An administrative area and data technology, applied in the field of data processing, can solve problems such as image distortion

Active Publication Date: 2020-08-11
NAT GEOMATICS CENT OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the existing technology can only solve the problem of line segment thinning used in electronic maps, and cannot do anything for more complex surface data. At the same time, the complexity of the administrative division surface itself requires many problems to be taken into account when processing, such as related The problem of synchronous thinning of adjacent administrative divisions cannot be solved by the existing line segment thinning method. If the line segment thinning method is used for processing, it will easily lead to the problem of image distortion

Method used

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  • Method and device for thinning administrative area data
  • Method and device for thinning administrative area data

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0017] It should be noted that like numerals and let...

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Abstract

The invention relates to the technical field of data processing, in particular to a method and a device for diluting administrative area data, which is applied to the service terminal. The method comprises: extracting boundary surface data of a plurality of administrative regions to obtain a plurality of destination boundary surfaces, converting surface elements into line elements, according to apredetermined dilution scale, the plurality of destination boundary lines being respectively diluted, after dilution, the area surface surrounded by the target boundary line being the target administrative area surface, and then the attribute of the area element being transferred to the target administrative area surface by selecting the association mode of the original administrative area surfacecenter point, finally, the obtained multiple target administrative area surfaces being spliced and displayed visually through the electronic map.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a method and device for thinning administrative area data. Background technique [0002] With the rapid development of geographic information technology, the open sharing of geographic information data has gradually become the general trend. Traditional geographic information data is no longer satisfied with the copy of offline results, but more and more serves the society in the form of online services. In long-term application practice, people have found that the online application of administrative divisions in my country is very urgent, but due to the limitations of Internet bandwidth and confidentiality requirements, standard administrative division data cannot be directly applied to online browsing and calling. [0003] Therefore, if a large amount of administrative division data needs to be applied online, it is necessary to thin the administrative division data fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29
Inventor 杨靓黄蔚查祝华张红平
Owner NAT GEOMATICS CENT OF CHINA
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