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A scalable approach to visualization of large virtual cities

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7 Author(s)
Zara, J. ; Dept. of Comput. Sci. & Eng., Czech Tech. Univ., Prague, Czech Republic ; Chromy, P. ; Cizek, J. ; Ghais, K.
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Visualization of large urban complexes on the Web is a highly demanding task both from the networking and computational point of view. The whole three-dimensional model of a city is mostly too big to be downloaded in a reasonable time and to be stored in a memory of commonly used computers. This paper presents a scalable approach for subdividing an urban model into smaller parts. Dynamic loading and unloading data allows theoretically unlimited extension of a model with constant network and computation load. Further requirements specific to presentation of virtual cities are also discussed. Theoretical considerations are followed by a practical implementation utilizing the VRML language for modeling the historical city of Prague

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Information Visualisation, 2001. Proceedings. Fifth International Conference on

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