[Freegis-list] triangulation and contouring tools

[Brent Wood]

Hi Bryan,

Try Generic Mapping Tools (GMT) which offers several tools for gridding XYZ
data, including triangulation, and tools to manipulate the grids & derive
contours.

Fast, reliable, well proven & some very effective tools for rendering the
gridded models to postscript. Very helpful listserver as well.

http://gmt.soest.hawaii.edu


Cheers,

  Brent Wood


--- Bryan Keith <bryan at geomega.com> wrote:

> Hello,
> 
> I'm looking for a tool (or two) to take a set of points with z (or some 
> other attribute to interpolate), triangulate the points, and output 
> contour lines from the triangulated mesh based the z values at each point.
> 
> I think GRASS has some triangulation routines, but I don't think there's 
> a routine to generate contours from the triangulated mesh.  Maybe I'm 
> wrong?  Any other suggestions?  I could setup something like this 
> myself, but I want to check if there's something readily available 
> first.  Thanks.
> 
> Bryan
> 
> Bryan Keith
> GIS Specialist
> Geomega, Inc.
> Boulder, CO, USA
> 
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