Natalia Hoyos and Ned Kalapasev
Some observations that can be drawn from the general views (Figures 1 & 2 ) are:
Some problems that we found when working with the 3D ArcView extension were related with the computer capability of dealing with large amounts of calculations and data. In addition, the extension doesnâ€™t still allow the user to modify the graphical user interface (GUI). For this reason, it was not possible to create hotlinks and dialogs within the 3D views.
We found that 3D visualization, as a way of displaying data, is useful in providing information on general aspects and spatial relation of landforms, hydrology, populated areas, infrastructure and for this case, brownfield sites. Its major advantage, is that it makes it easier to visualize how objects are related to one another in space, and it allows the enhancement of certain characteristics by either exaggeration (vertical exaggeration of relief, contaminant concentration) or extrusion (buildings). The hypothetical scenario is just one example on how this tool can be used to display other relevant information, as it is produced. We believe that this will be very useful in future stages of the project. Finally, we consider that improvements in hardware and software are still needed to fully take advantage of the capabilities of the 3D analyst.
Relevant Links and References
Bell, M., Dean, C. and Blake, M. 1998. Forecasting the pattern of suburban
growth: decision-support in a GIS framework. Ninth Biennial Conference
Australia Population Association. University of Queensland, Brisbane. Web Site
EPA 1998. Brownfields showcase community, Stamford CT. Fact sheet EPA 500-f-98-266.
Fisher, T.R. 1993. Use of 3D Geographic Information Systems in Hazardous Waste Site Investigations. Pages 238-247 in Goodchild, M.F., Parks, B.O. &
Steyaert, L.T. (eds). Environmental Modeling with GIS. Oxford University Press, New York, New York.
McLaren, R.A. and Kennie, T.J. 1989. Visualization of digital terrain models: techniques and applications. Pages 79-98 in Raper, J (ed). GIS Three dimensional
applications in Geographic Information Systems. Taylor & Francis, Bristol, Pennsylvania.
Swanson, J. 1999. The three dimensional visualization and analysis of Geographic Data. Web Site
Quinnipiac River Watershed and Region Web Site Department of Biology and Environmental Science at the University of New Haven