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Random multi-proportion partition method of vector polygon

A polygonal, multi-scale technology, applied in image analysis, image data processing, instruments, etc., to meet the needs of vector data processing, reduce workload, and improve production efficiency

Inactive Publication Date: 2016-03-23
MAPUNI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a kind of segmentation method of arbitrarily multi-scale of vector polygon, thus solve the foregoing problems existing in the prior art

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  • Random multi-proportion partition method of vector polygon

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the following in conjunction with the attached figure 1 , the present invention will be described in further detail. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0031] Such as figure 1 As shown, the embodiment of the present invention provides a method for segmenting a vector polygon at any scale, and the method includes the following steps:

[0032] S1, obtain the actual area size of each sub-polygon after segmentation;

[0033] S2, according to the polygon segmentation orientation, obtain the outer orientation line of the polygon along the segmentation orientation, and perform node encryption on the orientation line;

[0034] S3, obtaining the node elements of the encrypted bearing line, and then constructing a polygonal dividing line perpendic...

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Abstract

The invention discloses a random multi-proportion partition method of a vector polygon, which relates to the field of mapping vector data production and comprises the steps that an actual area of each sub-polygon element is acquired according to an area proportion of the sub-polygon element; according to polygon partition orientations, polygon partition orientation edges are determined; node encryption is carried out to the partition orientation edges so as to generate polygon partition edges; and at last, polygon reconstruction is carried out to the polygon and the partition edges, and partitioned sub-polygons are filtered according to the actual areas of the sub-polygons. The method can realize the rapid, accurate and batched random multi-proportion partition of the vector polygon.

Description

technical field [0001] The invention relates to the technical field of vector data production, in particular to the technical field of surveying and mapping-related vector polygon segmentation data in arbitrary proportions. Background technique [0002] At present, most of the existing vector data processing software does not have an automatic segmentation method for any multi-scale vector polygons. Basically, the segmentation is done manually. Manual processing is inevitably difficult to meet the requirements in terms of accuracy, and the processing efficiency is also relatively low. Contents of the invention [0003] The purpose of the present invention is to provide a method for segmenting vector polygons with arbitrary multi-scale, so as to solve the aforementioned problems in the prior art. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is as follows: a method for arbitrarily multi-scale segmentation of vector poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 代广磊陈沙沙杨献杨国华管向中
Owner MAPUNI TECH CO LTD