Web-based historical city walks: advances and bottlenecks
Presence: Teleoperators and Virtual Environments - Special issue: Virtual heritage
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Abstract: Visualization of large urban complexes on the web is highly demanding task both from the networking and computational point of view. The whole three-dimensional model of a city is mostly too bit to be downloaded in a reasonable time and to be stored in a memory of commonly used computers. This paper presents a scaleable 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 VRML language for modeling historical city of Prague.