[osmosis-dev] Closed ways -> polygons?

Frederik Ramm frederik at remote.org
Mon Dec 21 23:56:30 GMT 2009


Hi,

David Carmean wrote:
> If nothing else it appears that I could write a query using PostGIS functions 
> that will do what I want:
> 
>     http://postgis.refractions.net/documentation/manual-1.3/ch06.html#IsClosed

Be advised that multipolygons may consist of any number of outer and 
inner ways which do not have to be closed themselves, they only have to 
form a closed ring. It will certainly be hard (but certainly not 
impossible) to do this with SQL alone.

Bye
Frederik

-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"




More information about the osmosis-dev mailing list