<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">You could do;<br><br>v.to.rast -> r.thin -> r.to.vect -> v.clean (and maybe v.generalize)<br><br>But you'll lose the link to the attribute data.<br><br>Cheers,<br><br>Mike<br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Original Message ----<br>From: Aurora Geomatics <aurorageomatics@telus.net><br>To: grassuser@grass.itc.it<br>Sent: Wednesday, June 18, 2008 5:24:46 PM<br>Subject: [GRASS-user] Centerlines of Polygons (skeletons)<br><br>Wondering if there is a simple way in GRASS to produce skeletons of <br>Polygons (rivers/streams), to find the flow centerline.<br><br>thanks<br><br><br>Mars Sjoden<br>Aurora Geomatics<br><a
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