面向Web的机械产品三维模型简化算法研究  

Research of Web-Oriented Simplifying Mechanical Products’s 3D Model

作　　者：齐洪方 汪耀 QI Hong-fang;WANG Yao(School of Intelligent Manufacturing,Wuhan Huaxia University of Technology,Wuhan Hubei 430223,China;School of Mechanicaland Electronic Engineering,Wuhan University of Technology,Wuhan Hubei 430070,China)

机构地区：[1]武汉华夏理工学院智能制造学院,湖北武汉430223 [2]武汉理工大学机电工程学院,湖北武汉430070

出　　处：《计算机仿真》2021年第11期280-283,289,共5页Computer Simulation

基　　金：湖北省自然科学基金项目(2019CFC911);湖北省高等学校优秀中青年科技创新团队计划项目(T201837)。

摘　　要：对机械产品三维模型数据量大不利于网络传输和Web显示的问题,提出了基于半边折叠的三维模型简化算法。通过引入顶点领域三角形平均面积、顶点领域三角形的法向量变化以及折叠边的边长,计算折叠代价,通过对折叠代价排序与预先设定好的阙值,对机械产品三维模型进行简化处理。实验结果表明,该算法有效减少了机械产品三维模型的数据量,提升了Web环境下机械产品三维模型数据传递和浏览器显示的流畅性,对机械产品分布式设计和制造技术的发展起到了促进作用。Aiming at the problem that the large amount of mechanicalproducts’ s3 D model data is not conducive to network transmission and web display, a 3 D model simplification based on half-edge collapse is proposed. The half-edge collapse cost was calculated, and folding priority was sorted to optimize simplified 3 D model. The model error was reduced by the triangle area of the neighborhood, the normal vector change of triangle and the length of folded edge. Experimental results show that the algorithm effectively reduces the amount of 3 D model data, and improves the fluency of 3 D model data transmission and browser display in Web environment.

关 键 词：半边折叠 模型简化 折叠代价 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]