CyberCity GIS (CCGIS): Integration of DEMs, Images, and 3D Models
Qing Zhu, Deren Li, Yeting Zhang, Zhong Zheng, Duo Huang · Photogrammetric Engineering & Remote Sensing · 2002
A CyberCity is a virtual representation of a city that enables a person to explore and interact, in cyberspace, with the vast amount of environmental and cultural information gathered about the city. A GIs software for CyberCity, called CcGIs, has been developed, and this paper reports its technical characteristics, including the three-dimensional hierarchical modeling technique, the integrated database structure, and the interactive method of visualization of the three-dimensional data of urban environments. The effective integrated data organization strategy for dynamical loading and progressive rendering, which enables CCGIS to support the development, design, and presentation of a large CyberCity, is stressed. Finally, a pilot project for CCGIs software application is also demonstrated.