GB/T 45393.3-2025Information technology — Building information model (BIM) software — Part 3: Model view definition (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is Part 3 of GB/T 45393 "Information Technology Building Information Modeling (BIM) Software". GB/T 45393 has been published The following parts.

— Part 1: General requirements;

— Part 2: Parameterized model;

— Part 3: Model view definition;

— Part 4: Mesh model;

— Part 5: Data interface.

This document was proposed and coordinated by the National Technical Committee for Information Technology Standardization (SAC/TC28).

This document was drafted by: Tsinghua University, Shuyun Technology (Shenzhen) Co., Ltd., China Architecture Standard Design Institute Co., Ltd., China Electronics Technology Standardization Institute, Beijing Institute of Architectural Design Co., Ltd., Shanghai Tunnel Engineering Rail Transit Design Research Institute, Shanghai Tianhua Architectural Design Co., Ltd., Dongfeng Design Institute Co., Ltd., Glodon Technology Co., Ltd., Central South University, Xiong'an Xiongchuang Digital Technology Co., Ltd., China Construction Southwest Design & Research Institute Co., Ltd., China Resources Land Holdings Co., Ltd., Shanghai Construction Engineering Fourth Construction Group Group Co., Ltd., China Railway Design Group Co., Ltd., Shanghai Urban Construction Information Technology Co., Ltd., CCCC First Highway Survey and Design Institute Co., Ltd., Shenzhen Flatfish Square Technology Co., Ltd., China Construction Digital Technology Co., Ltd., Shenzhen Qianhai Jarvis Data Consulting Co., Ltd., Beijing Honghu Cloud Map Technology Co., Ltd.

The main drafters of this document are: Gu Ming, Gao Ge, Liu Han, Lu Zixuan, Wang Mingyan, Wang Qian, Wang Yaoyao, Mao Yufeng, Hu Jia, Li Wenjun, Chen Peng, Sun Ran, Zhang Nan, Li Huitao, Yao Xukang, Qiao Shifan, Liu Sicheng, Du Xinyi, Wang Wei, Huang Shuang, Ma Jisheng, Sun Xu, Chen Yajun, Wang Zuo, Wang Kaijun, Su Lin, Shi Lei, Kang Yongjun, Yu Fangqiang, Xu Zhengming, Han Bin, Zhu Kangtian, Li Gang, and Zhifei.

Introduction

BIM software is characterized by the establishment and application of three-dimensional, structured, and semantic models. It provides the modeling, planning, and It has the functions of calculation, performance, management, delivery, inspection and coordination, and plays a supporting role in different stages, professions and applications of the whole life cycle of buildings. effect.

GB/T 45393 "Information Technology Building Information Modeling (BIM) Software" aims to guide practitioners to form a consistent understanding of BIM software.

In the development of BIM software, this series of standards is adopted to achieve the interconnection and interoperability of BIM software, the exchange and sharing of BIM models, and improve BIM The availability, applicability and maturity of the software promote the formation of a BIM software ecosystem and help capitalize BIM models.

GB/T 45393 is intended to consist of 5 parts.

— Part 1: General requirements. Clarify the basic concepts, functions and data requirements of BIM software, with the aim of assisting BIM software Requirements definition, development and implementation.

— Part 2: Parameterized model. Gives a model format that uses standardized parameter sets to represent geometric objects. The receiver can parse and Modify geometric object parameters to display and modify objects in the BIM model, with the goal of achieving editable models between BIM software exchange.

— Part 3: Model view definition. Provides a language for formally defining the content in the model, with the purpose of defining the model according to specific requirements.

Perform completeness check or model view extraction on the submitted model.

— Part 4: Mesh model. A model format based on triangular meshes that cannot be parametrically edited is given.

Used for visualization, communication and management of BIM models.

— Part 5: Data interface. Gives the data calling methods, sending and returning information between different BIM software and platforms. The purpose is to Enable different BIM software to share BIM data in the form of interfaces.

The issuing organization of this document calls attention to the fact that declarations of compliance with this document may involve the use of patents related to 7.2.2 to 7.2.6.

The issuing organization of this document takes no position on the authenticity, validity and scope of this patent.

The patent holder has promised to the issuing agency of this document that he is willing to cooperate with any applicant under reasonable and non-discriminatory terms and conditions.

The patent holder's statement has been filed with the issuing authority of this document.

The following contact information is obtained.

Patent holder. Tsinghua University.

Address. No. 1, Tsinghua Park, Haidian District, Beijing.

Please note that in addition to the above patents, some of the contents of this document may still involve patents. The issuing agency of this document does not assume the responsibility for identifying patents. responsibility.

Information Technology Building Information Modeling (BIM) Software Part 3: Model view definition

1 Scope

This document specifies the requirements for the development, execution and management of Model View Definitions (MVDs), providing a lightweight Graph Definition Language.

This document applies to the development and implementation of model view definitions required for data exchange in Building Information Modeling.

2 Normative references

GB/T 13000

GB/T 36456.3

GB/T 51447

GB/T 45393.1-2025

3 Terms and definitions

The following terms and definitions apply to this document.