Chapter13_notes_Geovisualization.pdf - 13 Geovisualization OVERVIEW Using techniques of geovisualization GIS provides a far richer and more flexible

Chapter13_notes_Geovisualization.pdf - 13 Geovisualization...

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Chapter 13 Geovisualization 169 Geovisualization OVERVIEW Using techniques of geovisualization, GIS provides a far richer and more flexible medium for portraying attribute distributions than the paper mapping which is covered in Chapter 12. First, through techniques of spatial query, it allows users to explore, synthesize, present (communicate), and analyze the meaning of any given representation. Second, it facilitates transformation of representations using techniques such as cartograms and dasymetric mapping. Third, GIS-based geovisualization allows the user to interact with the real world from a distance, through interaction with and even immersion in artificial worlds. Together, these functions broaden the user base of GIS, and have implications for public participation in GIS (PPGIS). LEARNING OBJECTIVES After studying this chapter, students will understand: How GIS facilitates visual communication. The ways in which good user interfaces can help to resolve spatial queries. Some of the ways in which GIS-based representations may be transformed. How 3-D geovisualization and virtual worlds can improve our understanding of the world. KEY WORDS AND CONCEPTS Geovisualization, cartographic transformation, cartograms, dasymetric maps, scientific visualization (ViSC), PPGIS 13
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