摘要
本文论述了在三维城市规划中涉及到的三维模型的消隐和分割技术,将模型的消隐分成了模型的整体消隐、模型的部分子集消隐和模型的局部消隐3个层次,分层详细地论述了三维模型在城市规划系统中的消隐的方式和技术,其中重点研究了一种针对单个模型的基于索引重排的部分消隐方法和技术,实现了模型的动态消隐和实时消隐,并完成了模型分割后的保存功能.本文对模型的分割和消隐算法进行了比较详细的论述,并采用1组实验模型对算法的效率进行了比对和验证,同时采用了一个实际应用中的三维城市规划系统对模型的消隐和分割技术进行了实际的应用和验证.
The main content of the article is 3D model segmentation and blanking technology in 3D urban planning. Three layers are settled on model blanking： single model blanking, ：subset blanking and mesh blanking. Above methods are discussed in detail; and a single model partial blanking method based on in- dex sort is regarded as the most important one; this method is the main target of this article. Based on this method, real-time blanking and real-time update is achieved; and spitted model saving is also completed. A more detailed exposition of the algorithm of splitting and blanking is carried out; and a sample model comparison and validation are also completed. Finally, a segmentation and blanking application based on an actual 3D urban planning system is carried out.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2014年第3期399-406,共8页
Engineering Journal of Wuhan University
基金
国家863计划课题(编号:2012AA121403)
关键词
城市规划
模型消隐
模型分割
顶点缓存
顶点索引
urban planning
model segmentation
model blanking
vertex buffer
vertex index
