[geos-devel] isvalid info

[Martin Davis]

Have a look at the JTS specs, available here:

http://www.vividsolutions.com/JTS/JTSHome.htm

Martin Davis, Senior Technical Architect
Vivid Solutions Inc.
Suite #1A-2328 Government Street Victoria, B.C. V8T 5G5
Phone: (250) 385 6040 - Local 308 Fax: (250) 385 6046


> -----Original Message-----
> From: Marcel Koopman [mailto:publiek at home.nl] 
> Sent: May 7, 2004 4:44 AM
> To: geos-devel at geos.refractions.net
> Subject: [geos-devel] isvalid info
> 
> 
> Hello,
> 
> I want to know when a polygon is considered valid.
> 
> I have 696 polygons that are not valid, but 16583 that are.
> 
> In mapserver i can draw all polygons.
> These polygons are polygons on postal code level.
> 
> Can someone give me some info about isvalid?
> 
> Thanks.
> 
> Marcel
> 
> 
> _______________________________________________
> geos-devel mailing list
> geos-devel at geos.refractions.net 
> http://geos.refractions.net/mailman/listinfo/geos-devel
>