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A category-level lightweight method and system for bim model components

A model component, lightweight technology, applied in the field of BIM model component category-level lightweight methods and systems, can solve the problems of low efficiency of lightweight technology, reduce model loading time, reduce network transmission time and network traffic, flexibility high effect

Active Publication Date: 2022-03-18
四川省交通勘察设计研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problems of low efficiency of the existing lightweight technology, the present invention provides a category-level lightweight method for BIM model components

Method used

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  • A category-level lightweight method and system for bim model components
  • A category-level lightweight method and system for bim model components
  • A category-level lightweight method and system for bim model components

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Embodiment 1

[0074] This embodiment proposes a BIM model component category-level lightweight method. The method proposed in this embodiment adopts different lightweight strategies for BIM models of different professions, categories, and components. On the premise of retaining all attribute information, It can greatly reduce the data volume of the BIM model, and greatly improve the lightweight efficiency and lightweight effect.

[0075] Specific as figure 1 As shown, the method of the present embodiment includes the following steps:

[0076] Step 101, obtaining the BIM model and splitting it according to component type;

[0077] Step 102, using different lightweight strategies to lightweight the split BIM models of different disciplines and different component types;

[0078] Step 103, configuring different LOD levels for different component types, merging the BIM data of each component and outputting to corresponding LOD level files.

[0079] If the BIM model acquired in step 101 of th...

Embodiment 2

[0202] This embodiment proposes a BIM model component category-level lightweight system, specifically as Figure 9 As shown, the system of this embodiment includes:

[0203] Split device, lightweight device, LOD level configuration device, combined output device, display device.

[0204] Among them, the splitting device is used to obtain BIM model data of different disciplines, split them according to component types, and output the split models to corresponding directories.

[0205] The lightweight device uses different lightweight strategies to lightweight the split models of different disciplines and different component types.

[0206] The LOD level configuration device is used to configure a LOD level value for different professional and different component types;

[0207] The merging output device is used to merge the lightweight model data split by component type, and output it as a lightweight model file format or a GIS platform data format (such as the GDB data forma...

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Abstract

The invention discloses a BIM model component category-level lightweight method and system. The method of the invention includes: obtaining a BIM model and splitting it according to component types; The BIM models of different component types are lightweight; different LOD levels are configured for different component types, and the BIM data of each component is merged and output to the corresponding LOD level file. The present invention adopts different lightweight strategies for BIM models of different professions, different categories, and different components. On the premise of retaining all attribute information, the data volume of the BIM model can be greatly reduced, and the lightweight efficiency and effect can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of BIM (Building Information Modeling, building information model) and traffic engineering, and specifically relates to a method and system for lightweighting BIM model components at category level. Background technique [0002] BIM is an engineering data model based on three-dimensional digital technology that integrates various related information of construction projects. By establishing a virtual three-dimensional model of architectural engineering and using digital technology, this model is provided with a complete architectural engineering information library that is consistent with the actual situation. The information base contains geometric information, professional attributes and state information describing building components, which greatly improves the degree of information integration of construction projects, thus providing a platform for engineering information exchange and sharing for stakeh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/10G06F30/13G06F119/14
CPCG06T17/10G06F30/13G06F2119/14
Inventor 朱明祝嘉浩赵见袁松李杰肖春红徐益飞李邦国敖维林陈备张云鹤杨体旺赵飞聂上森贾飞扬秦川龙姝霓
Owner 四川省交通勘察设计研究院有限公司
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