[postgis-devel] isvalid() error

[strk at refractions.net]

PostGIS always allowed polygon rings with 3 points.
In this case it disagrees with GEOS about this.
Also, PostGIS does not allow 0 points.

Should we enforce GEOS constraints or just have isvalid
return FALSE in these cases ?

--strk;

On Thu, Jan 13, 2005 at 05:07:59PM -0500, Carl Anderson wrote:
> 
> need to test for ring counts prior to sending to GEOS
> 
> select  isvalid(geometry('POLYGON((0 0,0 1,0 0))'));
> NOTICE:   IllegalArgumentException: Number of points must be 0 or >3
> ERROR:      POSTGIS2GEOS conversion failed
> 
> 
> -- 
> Carl Anderson
> GIS Manager Fulton County, Georgia
> carl.anderson at co.fulton.ga.us
> 404.730.8026
> 
> 
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