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Integrating Virtual Environment and GIS for 3D Virtual City Development and Urban Planning

This article explores the integration of virtual world technology and GIS for the development and planning of 3D virtual cities. It discusses the features and applications of virtual world technology, the integration of GIS with virtual worlds, and provides a case study of a virtual city development project. The article concludes with the potential of combining virtual world technology and GIS for immersive virtual environments and collaborative urban planning.

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Integrating Virtual Environment and GIS for 3D Virtual City Development and Urban Planning

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  1. Integrating Virtual Environmentand GIS for 3D Virtual CityDevelopmentand Urban Planning Bin Chen, Fengru Huang, Yu Fang Peking University

  2. Content • Introduction • Virtual World Technology • Integrate VW with GIS • A Practice of VW Based Virtual City • Conclusions and Future Work

  3. Introduction • Recently innovative technologies offer different ways of modelling andrepresenting urban informationwith real-time interaction over the Internet. • 3 generations of virtual city technology • Web listing by text, image and video • "Flat" cities by 2D map • 3D visualization virtual city

  4. Virtual World Technology • Virtual World is a multi-user 3D creative platform based on virtual environment • Users immersed into virtual environment by avatars • Online collaborative authoring and application development • Different from traditional virtual reality

  5. Features of Virtual World • Virtual reality environment • Virtual terrain and virtual atmosphere • Dynamics simulation • 3D authoring platform • Network oriented 3D modelling • Script language • interact among virtual environment, avatars and 3D models • communicate with outer process • Avatar system • Instant messaging

  6. Virtual World Technology • As a general purpose development platform, VW can be used to support applications from a wide range of fields • Online entertainment, virtual communities • Virtual education and trainning • Scientific visulization • Virtual tour, urban planning • Emergency response and drill • Facility Management

  7. Virtual World Technology • VWs are becoming the new generation of mainstream Internet contents followed after text, image, audio and video

  8. Integrate VW with GIS • Extending geodata model by virtual reality • Integrate geodata with 3D models • Support realtime update and modification of virtual scenes • Online multi-user collaborative workflow • Emphasize collaborative interaction of multi-user • Increase performance of user-avatar interaction with virtual environment • New method of mapping between 2D geodata and 3D models

  9. Integrate VW with GIS • Develop human-scale GIS application • Considering features of small scale space • Enrich general purpose development platform of VW • Combined with geoprocess model library • Communicate with outer geodatabase and workflow

  10. VW Based Virtual City • Advantages includes • Network oriented • Fast and low-cost 3D modeling • Multiple plans show • Multi-user collaborative evaluation • Realtime plan modification

  11. A Practice of VW Based Virtual City • The project integrate the real Shunde Industrial Design City,which hosted in Guangdong of South China, with avirtual environment by geographic mapping and 3D virtualmodeling. • Based on VW server of Opensimulator • About 4 square kilos

  12. A Practice of VW Based Virtual City • A joystick allows the user avatar to fly-through the 3D model in realtime • have a look from different perspectives at complextopographic structures as well as the smallest architecturaldetails.

  13. A Practice of VW Based Virtual City • Based on the 3D visualization of the real architecture andlandscape of Shunde Industrial City, users of different levelsand objectives can have varies activities and experiences invirtual environment • including interactive mapping andcollaborative modelling, solid, geometric modellingphotospatial panoramic views, and multi-user virtual worlds. • For urban planning, the planners can construct or movelandscape elements • such as roads, buildings, plants,sculptures, bridges, water, etc • based on their observationand consideration in the virtual city collaboratively.

  14. Conclusions and Future Work • Applications based on virtual world are becomingpopular, virtual city and urban planning is a typical case • Extending VW with GIS will make virtual city more powerful by many aspects including immersive virtual environment and collaborative interaction • Further work will focus on the complete design and development of virtual applications of urban planning

  15. End • Thanks for your attention!

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