摘要
“数字城市”是以计算机技术、多媒体技术和大规模存储技术为基础 ,以宽带网络为纽带 ,运用 3S技术、遥测、仿真—虚拟技术等对城市进行多分辨率、多尺度、多时空和多种类的三维描述。通过“数字城市”技术可以将现代城市的信息收集、整理、归纳起来 ,并按照地理坐标建立完整的空间数据模型 ,经过网络联结使每个人都能快速、完整、形象地了解城市的过去、现状和未来。目前国内外“数字城市”研究基本上是停留在软硬环境建设方面 ,至多处于研究的初期阶段 ,并没有在“数字城市”研究方面取得实质性的进展。本文主要探讨我国实现“数字城市”的关键技术 ,诸如 :数字城市空间基础设施、多种GIS系统集成模型研究、 3D GIS、三维城市规划、城市仿真与虚拟现实技术、数字城市支持下的数字社区等等。
The Digital City is a multi-resolution, multi-scale, multi-space and time, multi-kinds description of a city in three dimensions with techniques such as 3S, telemetry, simulation and Virtual Reality (VR) based on such techniques as computer, multimedia and large-scale storage, and taking the wide band web as vinculum. By this technique, the modern city's information can be collected, collated and generalized,and the complete spatial data model can be established on the geographical coordinate system so as to facilitate each person's acquaintance of the past, present and future of the city rapidly, entirely and visually through the web. At the present time, studies on Digital City at home and abroad make no substantive advancement, but still remain at building hardware and software conditions, or at most, at the preliminary stage of the study. The paper mainly probes into the key techniques such as Virtual Reality, Urban Spatial Data Infrastructure, integrated model study of many kinds of GIS systems, 3D-GIS, the urban planning in three dimensions, city simulation and digital society supported by VR and Digital City, etc.
出处
《地理研究》
CSCD
北大核心
2002年第1期14-24,共11页
Geographical Research
基金
南京大学应用开发基金资助 (0 2 0 90 0 310 1)
关键词
“数字城市”
关键技术
三维城市规划
虚拟现实
Digital City
key techniques
urban planning in three dimensions
Virtual Reality
