Primitive matching method and device in architectural drawing

A matching method and technology for architectural drawings, applied in still image data retrieval, metadata still image retrieval, vector format still image data, etc., can solve problems such as matching errors and not considering global optimization, so as to improve accuracy and efficiency Effect

Pending Publication Date: 2020-11-24
GLODON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the one hand, the above method only uses three features of the direction, position vector, and shape of the primitives in calculating the matching degree of two primitives, and the weight of the matching degree calculation formula is given by human experience, and there is not enough data support
On the other hand, the greedy strategy is used to match based on a single primitive, without considering global optimization, and it is prone to matching errors

Method used

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  • Primitive matching method and device in architectural drawing
  • Primitive matching method and device in architectural drawing
  • Primitive matching method and device in architectural drawing

Examples

Experimental program
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Effect test

Embodiment 1

[0050] This embodiment provides a method for matching graphic elements in architectural drawings, such as figure 1 shown, including the following steps:

[0051] S100: Obtain any first graphic entity in the first set and any second graphic entity in the second set.

[0052] Taking a large sample of a column in a CAD building structure drawing as an example, it can be understood that the reinforcement lines in it can be divided into wall reinforcement, elements inside the column section, and elements outside the section according to the business meaning. The first set and the second set in this embodiment respectively correspond to the set of primitives in the section of the column and the set of primitives in the split diagram of the primitives outside the section. The first element can be any stirrup in the column section, and the second element can be any stirrup in the split diagram of the element. The purpose of this embodiment is to realize optimal matching between the ...

Embodiment 2

[0100] This embodiment provides a graphic element matching device 800 in architectural drawings, such as Figure 8 shown, including:

[0101] The primitive obtaining unit 810 is adapted to obtain any first primitive in the first set and any second primitive in the second set;

[0102] An eigenvalue calculation unit 820, adapted to calculate a plurality of eigenvalues ​​between the first graphic entity and the second graphic entity, the eigenvalues ​​representing that the first graphic entity and the second graphic entity are based on the same similarity of factors;

[0103] A matching model unit 830, adapted to input the plurality of feature values ​​into a matching model, and determine the matching degree between the first graphic entity and the second graphic entity;

[0104] The target determination unit 840 is adapted to determine the first target primitive and the second target primitive with the highest matching degree in the first set and the second set according to t...

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Abstract

The invention discloses a primitive matching method and device in an architectural drawing. The method comprises the following steps of: acquiring any first primitive in a first set and any second primitive in a second set; calculating a plurality of feature values between the first primitive and the second primitive, the feature values representing the similarity of the first primitive and the second primitive based on the same factor; inputting the plurality of feature values into a matching model, and determining a matching degree between the first primitive and the second primitive; and determining a first target primitive and a second target primitive with the highest matching degree in the first set and the second set according to the matching degree. According to the invention, thematching accuracy and matching efficiency of the two groups of primitives are improved.

Description

technical field [0001] The invention relates to the field of architectural engineering, in particular to a method and device for matching graphic elements in architectural drawings. Background technique [0002] When identifying architectural drawings containing multiple elements in engineering calculation software, the problem of matching elements is often involved, such as matching the corresponding elements inside and outside the section. In the actual processing process, since the primitives on both sides are prone to offset or interlacing, it is not possible to strictly correspond the primitives inside and outside the section through the position correspondence. [0003] The method for solving the matching problem of two sets of primitives in the prior art includes two steps. First, determine the type of primitives (such as stirrups or tie bars); secondly, adopt a greedy strategy to get a certain graph in a group of primitives Element Hoop1 traverses in another group o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/56G06F16/58G06F16/583G06F30/13
CPCG06F16/56G06F16/58G06F16/5854G06F30/13
Inventor 赵晓
Owner GLODON CO LTD
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