[geos-devel] RE: GEOS errors from PostGIS

[Martin Davis]

Rev 110

Modification was to switch to using SnapIfNeededOverlayOp

     private Geometry unionNoOpt(Geometry g0)
     {
     Geometry empty = geomFact.createPoint((Coordinate) null);
         return SnapIfNeededOverlayOp.overlayOp(g0, empty, OverlayOp.UNION);
     }




On 1/14/2011 4:44 AM, strk wrote:
> On Thu, Jan 13, 2011 at 07:51:16PM -0800, Martin Davis wrote:
>> James,
>>
>> I suspect this may be caused by a known bug in the Unary union.  This
>> was identified in this thread on the JTS list:
>>
>> http://sourceforge.net/mailarchive/forum.php?thread_name=4C0FB4A5.2010304%40refractions.net&forum_name=jts-topo-suite-user
>>
>> I fixed this in JTS, in the soon-to-be-released ver 1.12.  Perhaps this
>> fix hasn't made it's way into GEOS and PostGIS yet.
> Have a revision number of the fix ?
> Haven't found one in the forum thread...
>
> --strk;
>
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