[postgis-users] Delaunay Triangulation

[Jan Hartmann]

Same for me! I am trying out an intermediate solution just now: loading 
the PL/R statistical extension in my PostGIS database 
(www.joeconway.com), and using the R-triangulation functions, but a 
native postGIS version would be very nice indeed.

Jan

Gerry Creager n5jxs wrote:

> 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