35 points version (2 geoms):
http://strk.keybit.net/tmp/another_dump2.sql
... still finds non-noded intersections ...
--strk;
On Sun, Jun 27, 2010 at 12:18:22AM +0200, G. Allegri wrote:
I'm getting mad. The same geometries, run in a basic test written by
me works fine: http://www.giovanniallegri.it/share/test_wkt.java
The same geometries give errors in Postgis (+GEOS?) and with TestRunner...
giovanni
2010/6/26 strk s...@keybit.net:
On Sat, Jun 26, 2010 at 12:26:11AM +0200, G. Allegri wrote:
Before going to bed... a snapshot of the location causing the
exception: http://www.giovanniallegri.it/share/error_condition_snapshot.png
Just in case mine is smaller, another reduction here:
http://strk.keybit.net/tmp/another_dump1.sql
(201 points in 3 geoms)
NOTE: my version is a database dump, failure happens on st_union
which fails with original geoms and fails with snapped overlay.
dropping any of the 3 geoms makes the operation succeed, haven't
checked if that's a special handling within postgis.
It'd be worth filing a ticket on trac for better handling.
--strk;
2010/6/25 G. Allegri gioha...@gmail.com:
This is the reduced version of the test xml:
http://www.giovanniallegri.it/share/TestUnionMultiPolygon_red.xml
Now it contains only two geometries. It tries to node them but fails,
so a second try is done with the SnapOverlay, but it fails too.
I don't know the algorithm so I'm not able, yet, to say what is failing.
giovanni
2010/6/25 G. Allegri gioha...@gmail.com:
Here is a test xml:
http://www.giovanniallegri.it/share/TestUnionMultiPolygon.xml
It's big, but I will reduce it nex time :)
Notes:
1 - this multipolygon comes from an st_collect on 95 rows in a postgis
table. The test on it fails with Topology Expection found non-noded
intersection, because the MP is invalid. I've tested it on jts from
trunk.
2 - I've run a cascadedunion.union operation on a List of the same
geometries (picked with Geotools directly from the DB). It works fine.
In this test I've used jts 1.10 shipped with Geotools. I will try it
agains the trunk version as soon as possible.
Giovanni
2010/6/25 strk s...@keybit.net:
On Fri, Jun 25, 2010 at 04:39:17PM +0200, strk wrote:
Martin, is there any support for testing CascadedUnion
with the XML format ? Would help comparing GEOS/JTS.
I've found TestUnaryUnion.xml in JTS repository.
I guess that's what GEOS should be using
for testing CascadedPolygonUnion.
Only need to actually port UnaryUnion ...
--strk;
() Free GIS Flash consultant/developer
/\ http://strk.keybit.net/services.html
___
geos-devel mailing list
geos-devel@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/geos-devel
___
geos-devel mailing list
geos-devel@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/geos-devel
--
() Free GIS Flash consultant/developer
/\ http://strk.keybit.net/services.html
___
geos-devel mailing list
geos-devel@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/geos-devel
___
geos-devel mailing list
geos-devel@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/geos-devel
--
() Free GIS Flash consultant/developer
/\ http://strk.keybit.net/services.html
___
geos-devel mailing list
geos-devel@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/geos-devel
