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Method and system for building information modeling light weight and three-dimensional scene visualization

A technology of building information model and 3D scene, which is applied in the field of building information model lightweight and 3D scene visualization, can solve the problem that intelligent mobile terminals cannot organize and display BIM model data efficiently and quickly, and achieve lightweight, improved efficiency, The effect of reducing redundancy

Active Publication Date: 2018-10-26
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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Problems solved by technology

[0005] In order to overcome the problem in the prior art that intelligent mobile terminals cannot efficiently and quickly organize and display BIM model data, the present invention provides a method and system for lightweight building information models and three-dimensional scene visualization

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  • Method and system for building information modeling light weight and three-dimensional scene visualization
  • Method and system for building information modeling light weight and three-dimensional scene visualization
  • Method and system for building information modeling light weight and three-dimensional scene visualization

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Embodiment Construction

[0042] 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.

[0043] figure 1 It is a schematic diagram of the overall flow of a method for lightweight building information model and three-dimensional scene visualization in an embodiment of the present invention, as shown in figure 1 As shown, the present invention provides a method for lightweight building information model and three-dimensional scene visualization, including:

[0044] S1, establishing a BIM model of the target building, and parsing the BIM model into an FBX file;

[0045] Specifically, for the target building, the BIM model of the target building is established in the BIM modeling software according to the CAD file or BIM model data of the target building. The d...

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Abstract

The invention provides a method and a system for building information modeling light weight and three-dimensional scene visualization. The method comprises the following steps that: establishing the BIM (Building Information Modeling) of a target building, and analyzing the BIM into an FBX (FilmBoX) file; extracting the geometric information and the material information of each construction memberin the BIM from the FBX file; storing the geometric information of all construction members into a target OBJ file, and storing the material information of all construction members into an MTL (Material Management System) file; and on the basis of a WebGL (Web Graphics Library), according to the target OBJ file and the target MTL file, carrying out three-dimensional visualization display on the target building. By use of the method and the system, target BIM light weight is effectively realized, the redundancy of the BIM data is lowered, and efficiency for the intelligent mobile terminal to organize and display the BIM data can be improved to a certain degree. In addition, the three-dimensional visualization display of the target building on the intelligent mobile terminal can be served as a basic three-dimensional map of indoor positioning, and a foundation is laid for realizing the indoor positioning of the intelligent mobile terminal.

Description

technical field [0001] The present invention relates to the technical field of building information model visualization, and more specifically, to a method and system for lightweight building information model and three-dimensional scene visualization. Background technique [0002] Building Information Modeling (Building Information Modeling, BIM) technology, as a shared knowledge resource database, accommodates all parametrically expressed information about the entire life cycle of a building project from pre-planning to construction to maintenance. BIM is a digital virtual building that fully covers the building life cycle. In the operation and maintenance stage, the BIM model is connected with the system integration, which can provide the functions of visual management and rapid positioning and diagnosis. Under the BIM technology, all kinds of information contained in the virtual building can provide a powerful means for indoor positioning. [0003] At present, the appl...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/00
CPCG06T17/00G06F30/13
Inventor 刘建华龚晓东侯继伟李司宇
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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