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Building outline automatic identification method based on building general plane positioning map

A technology for automatic identification of building outlines, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as difficult identification and extraction of building outlines, and achieve the effect of ensuring accuracy and avoiding omissions

Pending Publication Date: 2022-01-07
长沙泛一参数信息技术有限公司
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AI Technical Summary

Problems solved by technology

[0004] Based on the above problems, the present invention provides a method for automatic identification of building outlines based on the general building plan positioning map, which solves the problem that it is difficult to automatically identify and extract building outlines from the building general plan positioning map

Method used

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  • Building outline automatic identification method based on building general plane positioning map
  • Building outline automatic identification method based on building general plane positioning map
  • Building outline automatic identification method based on building general plane positioning map

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Embodiment Construction

[0057] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0058] In order to realize the rapid, batch and digital modeling of the general building plan, it is necessary to identify and extract the planar figures of various building objects and model them separately. The general layout of the building is as follows: figure 1 As shown, the architectural objects included are very rich, including buildings, parking spaces, fire protection platforms, roads, landscapes, etc., and according to CAD drawing rules, each architectural object is drawn on at least one layer. When computer programming is used to recognize drawings, each building object cannot be directly recognized, only curves, characters, labels, etc., and their attribute i...

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Abstract

The invention discloses an automatic identification method for a building contour based on a building general plane positioning map, and the method comprises the steps: S1, obtaining all characters on the building general plane positioning map, and carrying out the traversing of a character string containing a specified character; S2, searching a curve closest to a character string containing a specified character on the building general plane positioning map, searching a closed graph based on the closest curve, and extracting all curves of a corresponding layer where the curve forming the closed graph is located; S3, for unidentified curves in the curve set, finding out closed graphs in the same graph layer; S4, according to the building type of the input building general plane positioning map, respectively screening the closed graphs to obtain a building contour; S5, performing 3D software rendering modeling on all the building contours to obtain a building three-dimensional schematic model. According to the method, the building contour is automatically identified and extracted from the building general plane positioning map, so that accurate positioning of the building BIM model in a digital scene is realized.

Description

technical field [0001] The invention relates to the technical field of architectural drawing object recognition, in particular to an automatic recognition method of a building outline based on a building general plan positioning map. Background technique [0002] The core of BIM (Building Information Modeling) technology is to provide a complete and consistent construction engineering information library for this model by establishing a virtual three-dimensional model of construction engineering and using digital technology. The information base not only contains geometric information, professional attributes and state information describing building components, but also contains state information of non-component objects (such as space and motion behavior). With the help of this 3D model containing construction engineering information, the degree of information integration of construction engineering has been greatly improved, thus providing a platform for engineering infor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/20G06F119/02
CPCG06F30/13G06F30/20G06F2119/02
Inventor 王虹张友三
Owner 长沙泛一参数信息技术有限公司
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