基于径向收缩法的建筑三维模型简化方法研究

Research on Simplification Method of Building 3D Models Based on Radial Contraction

本文借助于在三维空间中虚拟粒子发射到建筑外表面停止的思想实验方法,建立建筑物三维模型的简化外壳。该方法生成的模型网格简单、平台适应性强、网页端运行效率高,是一种针对单体复杂曲面模型抽壳的新方法;原理清晰、自动化程度高、模型网格简单,可以显著提升城市级大场景模型的简化效率和场景流畅度,为大批量BIM模型整合进入CIM平台提供了一种全新的技术方案。

This paper utilizes a thought experiment method of virtual particle emission stopping on the exterior surface of a building in three-dimensional space to establish a simplified shell of a three-dimensional model of the building.This method generates a simple model grid,has a strong platform adaptability and high web running efficiency.It is a new method for extracting shells from complex single surface models.The principle is clear,the degree of automation is high,and the model grid is simple.It can significantly improve the simplification efficiency and scene fluency of city level large-scale scene models,and provides a new technical solution for integrating a large number of BIM models into the CIM platform.