With the development of digital earth and cyber city, there is an increasing equipment on management and vitalization of integrated 3D model data and image data. How to improve the speed and visualization effect of three-dimesional (3D) model is a major research issue in 3D GIS. In order to improve the speed of 3D visualization, such as flying/walking through, many algorithms have been develope...

Three-dimensional (3D) computer graphics technology is widely used in various areas and causes profound changes. As an information carrier, 3D models are becoming increasingly important. The use of 3D models greatly helps to improve the cartographic expression and design. 3D models are more visually efficient, quicker and easier to understand and they can express more detailed geographical info...

Data Types (ADTs). This architecture is more beneficial for the integrity and consistency of the data. This chapter is devoted to the role of DBMS in new generation GIS architecture and focuses on the manner spatial data can be managed, i.e., stored and analysed, in DBMSs. Two important aspects of DBMS functionality are addressed in detail, i.e., spatial models and spatial analysis. Special att...

The existing 3D Geographical Information Systems (GIS) are confronting complex requirements when Internet-based technology is arising: the users need to share not only 3D data but also the same understanding of the work contexts and environments when they are geographically dispersed, so that they can collaboratively work together for a common goal. These kinds of requirements are usually seen ...

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 buildin...

The study of tourist activities and the mapping of their routes in space and time has become an important issue in tourism management. Here we represent space-time paths for the tourism industry by visualizing individual tourist activities and the paths followed using a 3D Geographic Information System (GIS). Considerable attention has been devoted to the measurement of accessibility to shoppin...