Three-dimensional visualization engine and WEB application calling method based on BIM model

Abstract

The present invention discloses a three-dimensional visualization engine and a WEB application calling method based on the BIM model. The method comprises: carrying out geomorphic modeling according to the digital elevation model and the terrain topography; according to the different modeling software, carrying out model uploading and registration based on the plug-in; optimizing the model resource according to the algorithm, calculating the multi-level LOD in real time, and storing the model resource; carrying out online transmission and offline download on three-dimensional scene data from a server to a client in a cloud+end mode; and supporting the model interaction on the client, and ensuring the scene to be smoothly displayed through scene optimization. According to the technical scheme of the present invention, a smooth three-dimensional visualization real-time rendering engine can be provided for the model with increasing volume at present, contradiction between the model volume and the client computing performance can be solved, and the technical scheme has significant value, and economic and social benefits to realize building information visualization and information collaborative sharing in the whole life cycle and to realize model efficiency maximization.

Description

technical field [0001] The invention belongs to the field of computer graphics, and in particular relates to a three-dimensional visualization engine for dynamically and real-time browsing of a super-large volume model in a web page and a calling method in a WEB application program. Background technique [0002] BIM technology aims to solve the problems of visual communication and information sharing in the process of design, construction, operation and maintenance, and has been widely used in the field of civil engineering. The 3D visualization based on BIM model and the parametric management of the whole life cycle of buildings are one of the research directions of modern large complex buildings. Due to the huge volume of large buildings and the large number of components, the requirements for 3D visualization of BIM models are getting higher and higher. Moreover, since the BIM model is the carrier of building information management, the management attributes carried are ...

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of hardware computing level, currently domestic and foreign modeling-based software on the market cannot effectively solve this problem. The display and computing performance requirements of the terminal are too high, and there is still a lot of gap with the practical requirements of the market.

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