Title:
LOD-BASED BIM MODEL LIGHTWEIGHT CONSTRUCTION AND DISPLAY METHOD
Document Type and Number:
WIPO Patent Application WO/2023/124842
Kind Code:
A1
Abstract:
The present invention relates to a building information model visualization technique, and relates to an LOD-based BIM model lightweight construction and display method and system. The method comprises: generating a BIM model according to an LOD rule, and dividing building component elements, which need to be rendered and displayed, into a plurality of LOD levels, wherein the distance from a viewpoint to an edge of a bounding box of the BIM model is taken as a basis for the setting of the levels; converting data of the BIM model in the levels into a binary data format, and compressing the BIM model; defining a configuration file, combining binary data of the BIM model, and generating a layered binary data model; and rendering a three-dimensional model by combining a screen space error (SSE) and a loading mode of the current node. Therefore, the technical problem in the prior art, whereby the organization of three-dimensional data tiles does not meet actual scenario requirements during webpage rendering, such that the performance is wasted and the webpage decompression rendering performance is poor after the tiles are compressed, is solved.
Inventors:
CHEN MINGHUA (CN)
CHEN SHUNQING (CN)
DENG MINGLIANG (CN)
CAI JINYI (CN)
LI DANYANG (CN)
XIE QUAN (CN)
CHEN SHUNQING (CN)
DENG MINGLIANG (CN)
CAI JINYI (CN)
LI DANYANG (CN)
XIE QUAN (CN)
Application Number:
PCT/CN2022/137043
Publication Date:
July 06, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
AUGUR INTELLIGENCE TECH LTD (CN)
International Classes:
G06T15/00; G06F30/13
Foreign References:
| CN114283231A | 2022-04-05 | |||
| CN112287138A | 2021-01-29 | |||
| CN111754617A | 2020-10-09 | |||
| US9865085B1 | 2018-01-09 | |||
| US20080238919A1 | 2008-10-02 |
Other References:
XU ZHAO, ZHANG LU, SUO HUA, CHI YING-ZI: "IFC-based data visualization of 3D Tiles for buildings", JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), GAIKAN BIANJIBU, HANGZHOU, CN, vol. 53, no. 6, 1 June 2019 (2019-06-01), CN , pages 1047 - 1056, XP093075780, ISSN: 1008-973X, DOI: 10.3785/j.issn.1008-973X.2019.06.004
Attorney, Agent or Firm:
HUAXUE IP AGENCY CO., LTD. (CN)
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