[postgis-users] Delaunay Triangulation

[Paul Ramsey]

This is one of those big projects where I think I should put up a 
collection page and people can commit funds according to their ability / 
desire to pay for the functionality. It is large and complex enough to 
be non-trivial, but also of wide enough interest to attract multiple 
funders, in all probability.

What do people think about a projects page with the ability of people to 
commit funding to development of particular larger components of 
functionality?

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