文化特色街区网络多导系统三维数据库建设研究

摘要

In order to solve the defect of 3D model file in data-managing,we built a meta model library from top to bottom with the object-oriented thought to subdivision of virtual scene,based on the relational database,to re-alize the management mechanism of the 3D model,such as storage,query,and sharing. Through effective scheduling and combination,image processing,terrain superposition and matching,the virtual scene was generat-ed.The results can provide similar virtual scene modeling and navigation services.%为了解决文件方式管理三维模型数据存在缺陷的问题,以面向对象的思想自上而下地对虚拟场景进行剖分,构建元模型库.基于关系数据库,实现三维模型的存储、查询、共享等管理机制.通过对数据库中的三维模型进行有效的调度和组合,再对处理后的影像和地形进行叠加、匹配,即可生成虚拟场景.研究结果能够为相似虚拟场景提供建模及导览服务.