Building information model (BIM) rendering optimization system and method based on IFC standard

Abstract

The invention provides a building information model (BIM) rendering optimization system and method based on the IFC standard. Data size compression and model rendering optimization of IFC files are conducted, hardware resources are fully utilized, and the method has higher cost performance and better expandability. According to the BIM rendering system based on the IFC standard, an IFC entity base is built based on the IFC standard, conversion of non IFC format to IFC standard format and compression of files in the IFC standard format are achieved with the IFC entity base as a basis by means of the defined data mapping relation, the compressed files of the IFC standard format are then read to be analyzed, a BIM is rebuilt in an internal memory in the format defined by the IFC entity base, and the rebuilt BIM is rendered and optimized.

Description

technical field [0001] The invention belongs to the technical field of building information, in particular to a BIM model rendering optimization system and method based on the IFC standard. Background technique [0002] The IFC (Industry Foundation Classes) standard is a product model standard for the field of construction engineering released by the International Alliance for Interoperability (IAI, International Alliance for Interoperability) in 1997. Through IFC, improve communication, productivity, time, cost and quality throughout the life cycle of construction projects, and establish a universal benchmark for process improvement and information sharing in construction and equipment professions around the world. Nowadays, more and more related products in the construction industry have provided the IFC standard data exchange interface, making the integration of multi-disciplinary design and management a reality. With the application of IFC standards in architectural mod...

AI Technical Summary

Problems solved by technology

[0004] Existing large-scale scene rendering technologies generally render large-scale scenes by using large-scale graphics workstations and utilizing large-scale computing technology. The rendering of large-scale scenes still fails to meet the expected requirements, and due to the poor scalability of the workstation, the rendering capability has been determined during the design and manufacturing process, which cannot meet the rapidly developing requirements of the model application in the IFC standard format; In reality and geographic information systems, distributed rendering technology is used to render large-scale scenes and massive data, but this technology has not been applied to the rendering of models in the IFC standard format; the performance of multi-core PCs has not been fully utilized, and multi-core The research on inter-thread parallel technology is of great significance to the rendering of IFC format models

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