基于VRML及B/S结构的交互式建筑空间虚拟系统设计  

Design of interactive architectural space virtual system based on VRML and B/S structure

作　　者：李双营 LI Shuangying(School of Architecture Engineering,Qinghai Nationalities University,Xining 810007,China)

机构地区：[1]青海民族大学建筑工程学院,青海西宁810007

出　　处：《现代电子技术》2021年第4期75-78,共4页Modern Electronics Technique

基　　金：青海省自然科学基金资助项目(2019⁃ZJ⁃950Q)。

摘　　要：针对传统建筑空间设计系统无法动态与用户交互的缺陷,设计基于VRML及B/S结构的交互式建筑空间虚拟系统,采用三层B/S结构建立包括用户浏览器层、应用服务器层以及数据库层三层的交互式建筑空间虚拟系统。用户浏览器层将用户需求利用通信网络发送至应用服务器层,应用服务器层由VRML语言的Script节点通过构建空间坐标系与比例尺、构件表示、建筑空间构建三部分初步建立具有轮廓特点的建筑空间模型,选取二面角阈值的共面合并算法搜索初步建立建筑空间模型场景超面,选取最低水平线择优插入算法完成纹理拼合,实现三维建筑空间虚拟场景的建立。实验表明,该方法可建立住宅、公共建筑、园林景观等不同类型的三维建筑空间虚拟场景,且具有较优的实时性,用户体验较好。As the traditional architectural space design system cannot interact with users dynamically,an interactive architectural space virtual system based on VRML and B/S structure is designed.A three⁃layer B/S structure is used to construct the interactive architectural space virtual system with user browser layer,application server layer and database layer.The user browser layer can send the users'requirements to the application server layer through the communication network.The application server layer is used to preliminarily establish the architectural space model with contour features by constructing the space coordinates system and scale,component representation and building space construction by means of Script node of VRML language.The coplanar merging algorithm of dihedral angle threshold is selected to search and initially establish the superface of the architectural space model scene,and the optimal insertion algorithm of the lowest horizontal line is selected to complete the texture combination,so as to realize the establishment of 3D building space virtual scene.The experimental results show that this method can build different types of 3D architectural space virtual scenes,such as residence,public buildings and landscape,and has better real⁃time performance and excellent user experience.

关 键 词：交互式建筑空间 虚拟系统 VRML B/S结构 建筑空间建模 系统设计 

分 类 号：TN919-34[电子电信—通信与信息系统] TP311[电子电信—信息与通信工程]