References for TIN

References for TIN

Post by Paul Pugl » Thu, 13 Sep 1990 10:50:12

Can anyone give a reference for a surface modelling techique called
TIN (trianglar irregular network)?  A number of Geographic Information
Systems use this techique to visualize elevation data.

Thanks in Advance,

Paul Puglia

Civil Engineering
Columbia University


1. 3d projection of a TIN


Does anyone know how to project a 3d TIN(triangulated irregular network)
on the screen using perspective, different view points and with
different viewing angle. My guess is i have to use transformation matrix
but i can't find the mathematical formulas to compute those
transformations. If anyone of you know, please help me.

David Thibault
Research centre in geomatics
Laval University
Quebec, Canada

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