[postgis-users] Center line

Suhr, Ralf Ralf.Suhr at itc-halle.de
Thu Aug 20 05:41:49 PDT 2009

Impossible I think,
the result can be a point or a line.
You can import your polygon into grass gis, convert vector to raster and use r.thin to see what an algorithm can do.
Gr Ralf

	-----Ursprüngliche Nachricht-----
	Von: postgis-users-bounces at postgis.refractions.net [mailto:postgis-users-bounces at postgis.refractions.net] Im Auftrag von eehab hamzeh
	Gesendet: Donnerstag, 20. August 2009 13:54
	An: postgis-users at postgis.refractions.net
	Betreff: [postgis-users] Center line
	I am looking for algorithm or functions implemented in postgis to find the center line of a a closed polygon, for example river, street,etc.
	Kind regards

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