基于WEB的城市三维建模与可视化方法探讨

AN APPROACH TO WEB-BASED 3-D CITY MODELING AND VISUALIZATION METHOD

基于WEB的城市三维建模与可视化包括三个部分 :城市三维数据 ,模型的构造及显示程序 ,与用户的交互。本文探讨了现有的建模方法及基于不同网络模型下的数字城市三维可视化的途径。通过研究提出了采用传统建模和基于图像的三维建模相结合的方法来构造数字城市的立体模型 ,以及将VRML与JAVA相结合实现用户虚拟城市动态漫游的技术。

The WEB-based 3-D city modeling and visualization method includes three parts:3-D city data,program for modeling and displaying,interaction with users.This paper presents modeling methods now available and several approaches to the implementation of Web-based 3-D city visualization based on different web model.On second thoughts,we advance a method which combines traditional modeling methods and image-based 3-D modeling to build digital city solid data,and implements real-time ramble in virtual city environment by programming with VRML and JAVA.