[geos-devel] 3.1.0rc1

[Paul Ramsey]

Incidentally, the problem is not the invalid geometries. I first tried
the union after "fixing" them with buffer(0), but I just now tried the
union after deleting them, with the same result.

aggtest=# delete from tm_world_2 where not st_isvalid(the_geom);
NOTICE:  Ring Self-intersection at or near point -53.7564 48.5033
NOTICE:  Ring Self-intersection at or near point -70.9172 -54.7086
NOTICE:  Ring Self-intersection at or near point 5.33694 61.5928
NOTICE:  Ring Self-intersection at or near point 143.662 49.3122
DELETE 4
aggtest=# select geometrytype(st_union(the_geom)) from tm_world_2;
NOTICE:  TopologyException: found non-noded intersection between
32.4122 -21.2178, 32.4762 -21.3219 and 32.4762 -21.3219, 32.4122
-21.2178 32.4756 -21.3208
ERROR:  GEOS2POSTGIS returned an error
aggtest=#

P

On Wed, Jan 28, 2009 at 1:49 PM, Paul Ramsey <pramsey at opengeo.org> wrote:
> For anyone that needs a test geometry, here's Dane's input as a single
> multipolygon:
>
> http://cleverelephant.dyndns.org/~pramsey/bigmulti.txt.bz2
>
> On Wed, Jan 28, 2009 at 7:44 AM, Hartmut Kaiser
> <hartmut.kaiser at gmail.com> wrote:
>>> I just did a bit further testing of the new cascaded union goodness
>>> via Shapely. See the linked email below:
>>> http://lists.gispython.org/pipermail/community/2009-January/001960.html
>>>
>>> Seems that I reached where a point that 'should never be reached' ?
>>> http://trac.osgeo.org/geos/browser/trunk/source/index/strtree/AbstractS
>>> TRtree.cpp#L358
>>>
>>> I am new to looking at the geos code, so any pointers to help me test
>>> more would be great.
>>
>> Could you provide a minimal test I could use to reproduce this problem?
>> Regards Hartmut
>>
>>>
>>> Thanks!
>>>
>>> Dane
>>>
>>>
>>> On Jan 27, 2009, at 9:02 PM, Dane Springmeyer wrote:
>>>
>>> > Paul,
>>> >
>>> > I tested on mac 10.5 and ubuntu 8.10 and all configure;make and make
>>> > installs went perfectly.
>>> >
>>> > Just a few compiler warnings that I've pasted here:
>>> http://dpaste.com/hold/113736/
>>> >
>>> > Dane
>>> >
>>> > On Jan 27, 2009, at 10:35 AM, Paul Ramsey wrote:
>>> >
>>> >> This is a pre-warning to PSC members to download and test the first
>>> >> 3.1 rc tarball:
>>> >>
>>> >> http://download.osgeo.org/geos/geos-3.1.0rc1.tar.bz2
>>> >>
>>> >> If I don't hear any howls of dismay over the next 24 hours, I will
>>> >> make a wider announcement for testing.
>>> >>
>>> >> Paul
>>> >> _______________________________________________
>>> >> geos-devel mailing list
>>> >> geos-devel at lists.osgeo.org
>>> >> http://lists.osgeo.org/mailman/listinfo/geos-devel
>>> >
>>> > _______________________________________________
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>>>
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>>
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>