A road selection method in small-mesh gathering area

Abstract

The invention discloses a method for selecting roads in a small mesh gathering area, which is applied in the technical field of geographical mapping, and redefines the starting mesh by considering the edge characteristics and mesh density of the small mesh at the same time, and changes the starting mesh from one small mesh to a pair Adjacent small meshes solve the problem that the starting mesh is located in the middle of the small mesh aggregation area, the result of mesh elimination is difficult to control, and it is easy to change the spatial distribution structure of the original road network; at the same time, the orphan segment elimination is based on the stroke connection order , in order to avoid the loss of spatial structure caused by some legacy strokes. The invention reasonably selects the aggregated small-mesh area in the road network, thereby ensuring the integrity and connectivity of the integrated roads in the area.

Description

technical field [0001] The invention relates to the technical field of geographic mapping, and more specifically relates to a method for selecting roads in a small mesh gathering area. Background technique [0002] The road network on the map is an objective construction of the connectivity and distribution of the road network in the real geographical world, and is the skeleton element of the map. Usually, the road network has many levels, complex relationships, and forms a network. Therefore, how to realize the multi-scale continuous expression of the road network has always been a difficult problem. The road network is connected to each other through various road sections and forms a series of meshes. When performing multi-scale continuous expression, it is necessary to scientifically eliminate the meshes of the road network, so as to ensure that the connectivity and integrity of the road itself can be maintained during multi-scale expression , and can accurately reflect ...

AI Technical Summary

Problems solved by technology

However, the existing method is more suitable for road areas with isolated small meshes that account for the vast majority of the map, but there are still some small meshes gathered in residential quarters or large factories. Using the existing mesh-based road selection method will destroy the Typical spatial characteristics of roads in this type of area

Although the number of clustered small mesh areas on the map is small, unreasonable selection of them will still affect the overall quality of road selection to a certain extent

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