[postgis-users] Splitting a polygon.

[Paul Moen]

Thanks. I stared at that for so long I couldn't see the answer.

On Jan 25, 2010, at 12:21 AM, Kevin Neufeld wrote:

> No, not a bug.  It looks like you have a gap in your split line of 10^-5, which obviously disappears when you reduce the precision.
> 
> At coordinates
> (1972865.08581219 378326.311285453)
> (1972865.08581219 378326.311279507)
> 
> Cheers,
> Kevin
> 
> On 1/24/2010 5:19 PM, Paul moen wrote:
>> I made a much more simplified version of what I am trying to do.  I am using PostgreSQL 8.4.2 and POSTGIS="1.4.1" GEOS="3.2.0-CAPI-1.6.0" PROJ="Rel. 4.7.1, 23 September 2009"
>> 
>> I create the table testlines as follows
>> 
>> CREATE TABLE testlines
>> (
>> gid integer,
>> the_geom geometry
>> )
>> WITH (OIDS=TRUE);
>> ALTER TABLE testlines OWNER TO postgres;
>> INSERT INTO testlines(gid, the_geom) VALUES (1, st_geomfromtext('LINESTRING(1972865.08581219 378326.311285453,1975599.79273051 379853.261981628)',-1));
>> INSERT INTO testlines(gid, the_geom) VALUES (2, st_geomfromtext('LINESTRING(1972773.34674946 377707.210612508,1972913.11215175 377573.688032513)',-1));
>> INSERT INTO testlines(gid, the_geom) VALUES (3, st_geomfromtext('LINESTRING(1972765.56033513 378288.726667813,1972865.08581219 378326.311279507)',-1));
>> INSERT INTO testlines(gid, the_geom) VALUES (4, st_geomfromtext('LINESTRING(1972865.08581219 378326.311279507,1972817.2530921 378237.264198899)',-1));
>> ...
>> Is this a bug?
>> 
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