[postgis-users] What is the Polygon thinning function in PostGIS?

[Pierre Racine]

Read this:

https://smathermather.wordpress.com/2012/08/10/what-is-the-center-line-of-a-complex-polygon-routing-stream-and-rivers-part-two/

> -----Original Message-----
> From: postgis-users-bounces at lists.osgeo.org [mailto:postgis-users-
> bounces at lists.osgeo.org] On Behalf Of Tom van Tilburg
> Sent: Wednesday, May 20, 2015 6:07 AM
> To: postgis-users at lists.osgeo.org
> Subject: Re: [postgis-users] What is the Polygon thinning function in
> PostGIS?
> 
> Hi,
> 
> A straight skeleton might be what you need:
> http://postgis.net/docs/ST_StraightSkeleton.html
> 
> I know there are some blog posts on this but couldn't find them that
> quickly.
> 
> Best,
> Tom
> 
> On 20-5-2015 4:29, KhunSanAung wrote:
> 
> 
> 	Hello All,
> 
> 	I'd like to generated line from elongated polygon in PostGIS.
> 	e.g. extracting center of a river polygon, center of the road polygon,
> etc.
> 
> 	I'd to know what would be equivalence of Polygon Thinning in
> PostGIS.
> 
> 	Thank you very much for any hints.
> 
> 	Best regards
> 	--
> 
> 	Have a nice day!
> 	--
> 
> 
> 	Mr. Khun San Aung
> 
> 
> 
> 
> 
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