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Author: Brian E. O'Toole 6849 Old Dominion Drive Phone: (703) 506-3966 The Arlington County Department of Public Works GIS Mapping Center has embarked on a project to develop a real-time three-dimensional visualization capability that is derived from and totally integrated with the County's existing GIS infrastructure. The objective of the project is to develop the tools and processes that will provide the County with the capability to interactively visualize, in both two and three dimensions, selected areas of interest within the County. With this technology, Arlington County's GIS Mapping Center will be able to support the needs of various County organizations that are involved in economic development, community development, and public safety. The following paper will discuss several key elements of the project, which include the production of real-time three-dimensional urban databases, and the development of a real-time three-dimensional viewer with the ability to interactively query and display associated GIS information in ArcView GIS. Specifically, the paper will present the process through which a photo-real three-dimensional database of Arlington County was produced utilizing Esri's ArcView 3D Analyst and MultiGen-Paradigm's three-dimensional modeling tool, Creator. Issues relative to interactive real-time visualization, database query mechanisms, and two-dimensional/three-dimensional correlation will be also addressed. Finally, examples of the completed database will be presented. |
