HELP! * GREY=local LOCAL HTML version of Foils prepared 9 february 1996

Foil 31 GIS in Database System

From Study of Use of Databases for VRML and Application to GIS Research Seminar -- 9 february 1996. by Krzysztof Walczak * See also color IMAGE
Synthesis of Terrain Description
Data is stored in the database in "raw" format - values describing altitude and color of each point separately.
In this form the data is retrieved by the conversion program.
New node of VRML 1.1 - ElevationGrid - is used
Conversion program produces the VRML representation using parameter values given by user.
The parameters the user can set include:
  • color or monochrome option
  • lighting option
  • color corrections
  • altitude magnification (default=2)
  • maximum resolution

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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Page produced by wwwfoil on Tue Feb 18 1997