摘要
为了更准确描述城市建筑景观特征,提高城市规划效果,设计基于三维虚拟现实技术的城市规划系统。通过航空激光扫描采集城市几何特征数据,利用城市规划设计结果获取新开发区域相关数据,采用该数据制作数字地面模型和建筑与景观三维模型对城市场景三维建模,并进行纹理渲染,将所建模型与虚拟现实软件坐标相匹配,并添设虚拟特效。利用OSG引擎实现系统主机显示端与虚拟显示端的同步虚拟展示。具体应用结果表明,该系统可以高精度地反映城市建筑景观特征,规划结果信息饱和度高,归一化均方根误差小,可获得理想的视觉展示效果。
In order to describe the urban architectural landscape features more accurately and improve the effect of urban planning,an urban planning system based on 3D virtual reality technology is designed.The data of urban geometric feature are collected by aerial laser scanning,the relevant data of newly-developed areas are acquired by urban planning and design results,and use the data ground model and the three-dimensional model of architecture and landscape to build three-dimensional models of urban scenes,render textures,match the built models with virtual reality software coordinates,and add virtual special effects;the data are used to make digital ground model and three-dimensional model of architecture and landscape,so as to model the three-dimensional urban scene,render the texture,match the built model with virtual reality software coordinates,and add virtual special effects.The OSG(open scene graph)engine is used to realize the synchronous virtual display of the system host display end and its virtual display end.The application results show that the system can reflect the features of urban architectural landscape with high accuracy,high information saturation of planning results,small normalized root mean square error and ideal visual display effect.
作者
刘月玲
LIU Yueling(Huashang College Guangdong University of Finance&Economics,Guangzhou 511300,China)
出处
《现代电子技术》
北大核心
2020年第19期182-186,共5页
Modern Electronics Technique
基金
广东省教育厅基金项目(2018WTSCX230)。
关键词
三维虚拟现实技术
城市规划
数据组织
模型制作
模型集成
纹理渲染
虚拟展示
3D virtual reality technology
urban planning
data organization
model making
model integration
texture rendering
virtual display
