Abstract:

A map is the most intuitionistic and effective visual carrier of spatial information.From the viewpoints of spatial query and spatial analysis of geographical information system（GIS）,this paper discusses the human-machine interaction process of cartographic visualization,analyzes the main functions of the interactive visualization interface,illustrates three modes of interactive visualization query and the relationships between the modes and the interface,presents a framework for the spatial analysis of interactive visualization system,and describes the relationship among four basic functions of spatial analysis in the spatial analyzing framework,such as the selection,the manipulation,the exploration and the confirmation.Moreover,a prototype system of map-based interactive visua-lization is designed and implemented,the case study illustrating the practicability of the system.

Key words: data visualization, visual interactive interface, visual query, spatial analysis