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Method and device for detecting consistency of multidimensional vector map

A detection method and vector map technology, which are applied in the fields of instrumentation, calculation, electrical digital data processing, etc., to achieve the effect of accurate detection results and high detection efficiency

Inactive Publication Date: 2013-01-23
PEKING UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0007] In order to solve the problem of consistency detection of multi-scale vector data described in the background technology, the present invention provides a method and corresponding device for consistency detection of multi-scale vector data

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  • Method and device for detecting consistency of multidimensional vector map
  • Method and device for detecting consistency of multidimensional vector map

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Embodiment Construction

[0026]Vector data is usually composed of geometric symbols representing various geographical objects, such as roads, water systems, buildings, etc. In multi-scale vector data, the vector data of different scales are independent, and there is no direct correlation between the data of each other. However, these vector data of different scales reflect the spatial relationship in the same geographic area. For example, multi-scale vector data may reflect the same urban area, but its scale is different (from 1:5000 to 1:100,000), so it is necessary to require vector data of different scales to reflect the same geographic object. The spatial information has a large degree of consistency, so as to ensure the consistency of query results when applying multi-scale vector data. On the contrary, if in the multi-scale vector data, for the same geographic object, the spatial information reflected in the vector data at different scales is seriously inconsistent, which will inevitably cause ...

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Abstract

The invention provides a method and a device for detecting consistency of a multidimensional vector map, wherein the detecting method comprises steps as follows: 1) multidimensional object correspondence detecting step: extracting multidimensional vector data and matching the vector data with different dimensions, so as to find out a detailed object and a rough object corresponding to a detailed dimension and a rough dimension respectively in a same geographical object; 2) neighboring object detecting step: choosing the neighboring object within the certain neighboring range of the detailed object and the rough object respectively, and computing a detailed spatial relationship and a rough spatial relationship between the detailed object as well as the rough object and the neighboring objects of the detailed object and the rough object; and 3) consistency detecting step: judging whether the geographical objects are consistent in the vector data with different dimensions according to the detailed spatial relationship and the rough spatial relationship. The invention adopts the spatial relationship between the geographical objects as the basis for detecting the consistency of the multidimensional vector data, the detecting efficiency is high, and the consistency detection of the large scale vector data is realized.

Description

technical field [0001] The present invention relates to the technical field of multi-scale space, and more specifically, to a method and device for detecting consistency of multi-scale vector maps. Background technique [0002] Based on the spatial data of geographical objects (such as roads, land, buildings, etc.), visualized vector data can be established, and the query and processing services for information related to geographical objects can be provided in the vector data. Since users in different departments have different levels of demand for spatial information from macro to micro, it is often necessary to establish vector data of different scales and standards for the same geographical area. For example, for macro planning, users need to create visual vector data at a rough scale (such as 1:100,000) for query and management; for specific planning in a certain area, they can create vector data at a detailed scale (such as 1:5000), And query and manage spatial inform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 杜世宏
Owner PEKING UNIV
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