Review of Mesh Simplification Technology on City Information Modelling
张琪 1左权 1马牧野 2郑子辰2
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作者信息
1. 中国电信股份有限公司
2. 住房和城乡建设部信息中心
折叠
摘要
随着城市信息模型的发展,人们对于数据的需求也日益增加,然而,大规模的城市信息模型在传输、存储和处理等方面所面临的挑战也变得日益突出.本文旨在对城市信息模型减面技术进行综述,首先重点回顾了与CIM轻量化相关的关键技术和标准定义,其次深入探讨了开发级别(Level of Development,LOD)在城市信息模型中的重要性和应用;最后回顾了CIM模型轻量化的具体技术方法,包括QEM(Quadric Error Metrics)和Structure-Aware等减面技术.本文旨在为城市信息模型轻量化研究提供一个全面的概述,为相关领域的研究者和从业者提供参考和启发.
Abstract
With the development of city information modelling,the demand for data is increasing.However,the challenges of large-scale city information modeling in terms of transmission,storage and processing have become increasingly prominent.The paper aims to provide an overview of Mesh Simplification Technology on city information modelling.The paper focused on key technologies and standard definitions related to CIM lightweighting firstly,then delved into the importance and application of Level of Development(LOD)in city information modelling;finally,specific technical approaches for CIM model lightweighting was introduced including surface simplification techniques such as QEM(Quadric Error Metrics)and Structure-Aware.The paper provided researchers and practitioners in related fields a comprehensive overview of CIM lightweighting.
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