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Method for identifying vector elements of territorial plane intersection

A plane intersection and recognition method technology, applied in the field of vector graphics, can solve problems such as missed judgments, hidden dangers of data quality, large manpower and time costs, etc., to improve accuracy, convenience and efficiency, save time and human effect

Active Publication Date: 2020-07-28
中国国土勘测规划院
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  • Abstract
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Problems solved by technology

At present, the compliance inspection of the regulations mainly relies on human eyes to identify patterns one by one, but this inspection method requires a lot of manpower and time costs, and the probability of missed judgments is very high, which buryes hidden dangers for the quality of data and threatens the quality of data. Further influence subsequent data application and analysis

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  • Method for identifying vector elements of territorial plane intersection
  • Method for identifying vector elements of territorial plane intersection
  • Method for identifying vector elements of territorial plane intersection

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Embodiment Construction

[0062] 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. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0063] Such as figure 1 As shown, according to an embodiment of the present invention, a method for identifying a vector element of a land plane intersection includes the following steps:

[0064] S1: Analyze intersection features;

[0065] S2: Define a vector graphics model based on angle + length, where the angle is an attribute of a node, and the length is an attribute of an edge;

[0066] S3: Use the Neo4j library to model vector graphics, where the Neo4j library is a NOSQL graph databa...

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Abstract

The invention discloses a method for identifying vector elements of a territorial plane intersection. The method comprises the following steps of: analyzing the characteristics of the intersection; defining a vector graphic model based on the angle and the length; adopting a Neo4j graph library to model a vector graph; defining an angle + length mode according to intersection characteristics; andexecuting mode matching in the Neo4j image library. Through the method, other analysis methods except the GIS tool are provided for graphic analysis, and convenience and high efficiency are better than those of the GIS tool in analysis based on angle and length characteristics; the graph with the intersection is automatically and accurately recognized, time and labor are saved, and the accuracy isimproved.

Description

technical field [0001] The present invention relates to the technical field of vector graphics, in particular to a method for identifying vector elements of land level intersections. Background technique [0002] The survey of linear features in the technical regulations of the third national land survey stipulates that: "The linear features on the ground are continuously displayed, but when the linear features interact with each other, the high-grade roads should be kept running through, and the low-grade roads should be intersected. Interrupted everywhere." In a nutshell, the regulation is that it is not allowed to use only one graphic to express intersections and T-junctions. At present, the compliance inspection of the regulations mainly relies on human eyes to identify patterns one by one, but this inspection method requires a lot of manpower and time costs, and the probability of missed judgments is very high, which buryes hidden dangers for the quality of data and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/56G06K9/62G06T11/20E01C1/02
CPCG06F16/56G06T11/203E01C1/02G06V10/751
Inventor 白晓飞张嘉张小桐卢宇航李辉尚梦佳何禾解琳耿冲
Owner 中国国土勘测规划院