Study on Web-based Distributed Virtual City Environment

Web-based 3D GIS becomes one of the major areas of GIS research, which extend distributed virtual geographic environment when integrated with virtual reality. Distributed virtual city environment, one of the most important research fields, will meet the demands of the urban planning and urban landscape. Firstly, a CORBA-based distributed architecture is presented. Secondly, a new 3D LOD building model, which can be used to create multi-resolution building data, is proposed. Next, the message for managing multi-user’s interaction and the change of virtual city scene are designed to maintain the scene’s consistency Finally, a web-based virtual city environments system to visualize 3D city scene and create the user’s avatar is developed.