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

[KhunSanAung]

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*
* <http://geoportal.icimod.org/>*
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