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Topic: Matlab, Wavelet Toolbox, & Terrain Modeling
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Robert W. Fuentes

Posts: 20
Registered: 12/7/04
Matlab, Wavelet Toolbox, & Terrain Modeling
Posted: Sep 23, 1996 11:57 AM
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I'm an MSEE student at the University of Texas at Arlington. I'm working
on generating a hierarchically structured data base representation for
terrain modeling. I'm working with:
Wavelet Toolbox
Digital Terrain Elevation Data

Our process involves using wavelets to generate a coarse approximation
of the elevation posts and triangulate the posts to generate the root
of the model (relatively few triangles, rough approximation). Then
we use wavelet generated approximations to determine which triangles
in the root need to be further refined. Our current triangulation
scheme involves refining a triangle by connecting the midpoints of
each edge (some added processing is done to ensure no wholes are
generated in the model). We looking to implement a better triangulation
approach. The output generated for a given model would be a file
of points and a file of triangles (referencing into the points).

I'm interested in methods to display the triangulation results. I have
seen a 2-D method in Nakamura's book on Numerical Analysis in Matlab.
Does anyone have a 3-D method?

I'm also interested in any matlab triangulation method, like maybe

Also, is anyone working with elevation data and the Wavelet Toolbox
or terrain modeling and Matlab?

Robert Fuentes

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