[postgis-users] Get concave hull from an array of longitude in latitude points

[Martin Davis]

What's a concave hull?

Aleš Kecman wrote:
> Hi!
>
>
> I'm new to Postgis and would really like to get some help on getting a 
> concave hull from an array of points.
>
> For example:
>
> I have an array of points - longitude and latitude of buildings in 
> particular area in the city. I already managed to get a convex hull 
> polygon from this array of points, but this is not really helpful. 
> What I'm trying to get is some kind of concave hull polygon from an 
> array of points, which I would further like to use in Google Earth kml 
> file.
>
> Thanks.
> ------------------------------------------------------------------------
>
> _______________________________________________
> postgis-users mailing list
> postgis-users at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
>   

-- 
Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022