西南交通大学学报Issue(2)：317-322,6.DOI:10.3969/j.issn.0258-2724.2014.02.020
基于E-R模型的虚拟高速铁路场景组合建模方法
Combinational Modeling Method of Virtual High-Speed Railway Scene Based on Entity-Relationship Conceptual Model
摘要
Abstract
By analyzing the object entity and the three dimensional relations of virtual high-speed railway scene,a combinational modeling method based on entity-relationship conceptual model was proposed. The conceptual model of virtual high-speed railway scene was designed,which includes three levels,namely entity level,relation level and scene level. Then some key technologies such as modeling flowchart,mapping and combination of primitive models were discussed in detail. Finally a prototype system was implemented for modeling experiment on a case study region. The experimental results show that 110 km line scene modeling can be finished within 2 min. The proposed method can efficiently clarify various relations between scene object entities. It supports fast organization and the modeling of virtual high-speed railway scene.关键词
实体-关系模型/高速铁路/虚拟现实/概念设计/组合优化Key words
entity-relation model (E-R )/high-speed railway/virtual reality/conceptual design/combinational optimization分类
信息技术与安全科学引用本文复制引用
朱军,王金宏,胡亚,彭子龙,张阿丽..基于E-R模型的虚拟高速铁路场景组合建模方法[J].西南交通大学学报,2014,(2):317-322,6.基金项目
国家自然科学基金资助项目（41271389）；中央高校基本科研业务费专项资金科技创新研究项目 （）
