A study on the key techniques of the digital city and its 3D re-appearing
Received date: 2001-06-18
Revised date: 2001-11-05
Online published: 2002-02-15
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.
GU Chao-lin, DUAN Xue-jun, YU Tao-fang, SUN Yi-zhong, CHEN Qi-ning . A study on the key techniques of the digital city and its 3D re-appearing[J]. GEOGRAPHICAL RESEARCH, 2002 , 21(1) : 14 -24 . DOI: 10.11821/yj2002010003
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