[postgis-users] GEOS intersects() threw an error!

[Jerry Carter]

Thanks.  I've already started down that path.

The real issue in my mind is the error text.  If GEOS throws an error, couldn't PostGIS internally run the equivalent of ST_IsValidReason() on the geometry before writing a message?  Seeing 'GEOS intersects() threw an error due do an invalid geometry (self-intersection)' seems much more helpful than the current message.

-=- Jerry


On Mar 17, 2010, at 11:51 AM, Mike Toews wrote:

> Typically, this type of geometry error is fixed using
> ST_Buffer(the_geom,0). So just wrap your geometry in that zero buffer,
> and you should get a valid geometry (in ST_IsValid) and a correct
> ST_Intersects result.
> 
> -Mike
> 
> On 17 March 2010 08:23, Jerry Carter <jerry at jerrycarter.org> wrote:
>> I am aware that this geometry reports a Self-intersection according to ST_IsValidReason().