WebGL-based three-dimensional model display method and corresponding Web-BIM engineering information integration management system

Abstract

The present invention relates to a WebGL-based three-dimensional model display method and a corresponding Web-BIM engineering information integration management system. The three-dimensional model display method comprises converting an IFC model file of a BIM engineering project into an OBJ model file; and displaying a three-dimensional model in a browser page supporting WebGL by using JavaScript program through OBJ-JavaScript interaction according to the OBJ model file obtained in the first step. The management system comprises a system database, and a data interaction module, a GIS integration module, an information query module, a user management module and a management decision support module which are respectively in communication connection with the system database. Web-3D browse of the BIM model is achieved by utilization of the WebGL technology.

Description

technical field [0001] The invention relates to a three-dimensional model display method based on WebGL and a Web-BIM engineering information integrated management system using the method, belonging to the field of construction industry information technology. Background technique [0002] With the emergence of a large number of construction projects, the scale of engineering construction and the increasing complexity of projects, a large number of new large-scale tower building / construction machines and construction schemes have emerged. Faced with the challenge of no ready-made case reference, the construction unit’s previous working methods under the guidance of experience have gradually been unable to adapt to the trend of transformation from construction enterprises in the industry to management-oriented construction enterprises. The many characteristics of BIM (Building Information Modeling) technology enable its application to meet the requirements of transformation a...

AI Technical Summary

Problems solved by technology

[0004] However, the application of BIM in the construction engineering industry is still at some specific stages, and it cannot really realize the application for the whole life cycle of construction engineering, and there is a lack of effective links between various stages.

[0005] There are many types of BIM modeling software, and there are many data formats. There are great obstacles in the data interaction between various software systems, which leads to the blockage of information exchange and sharing among the project participants, forming an "information island". "Phenomenon, it is impossible to carry out effective integrated management of project-related data information

[0006] Some existing engineering integration management systems based on BIM technology are based on the C / S architecture, which cannot realize the heterogeneous synchronous interaction of project management information, has high requirements on the software system of the client, and has high maintenance costs

At the same time, traditional integrated management systems cannot achieve unified data format interaction and data visualization

[0007] After searching, it was found that the Chinese invention patent application with application number 201410222073.5 and application publication number CN105095323A proposed "a three-dimensional building webpage display and control system for the Internet of Things based on BIM and WebGL", but only briefly mentioned BIM and WebGL. combined, and did not introduce a specific combination method

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