[postgis-users] Delaunay Triangulation
Gerry Creager n5jxs
gerry.creager at tamu.edu
Fri Oct 15 09:51:46 PDT 2004
Ooh! Ooh! Please? This would be very useful. I've not addressed this
because of time/workload, but this would be a MAJOR benefit! I've the
same sort of needs for the coastal community.
gerry
Bernhard Reimar Hoefle wrote:
> Hi,
> has someone written a function for the Delaunay Triangulation of point datasets
> in PostGIS?
>
> I would like to get the slope and aspect for points (huge amount of lidar points
> representing the terrain). Therefore I have to construct a terrain model (e.g.
> TIN) and then extract the slope and aspect for each point.
>
> There is the function convexhull(). So I'm wondering if someone tried the
> Delaunay Triangulation.
>
> Thanks,
> Bernhard
--
Gerry Creager -- gerry.creager at tamu.edu
Network Engineering -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020
FAX: 979.847.8578 Pager: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843
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