Hello,
is it correct that geometric operations (especially intersection) are not
available if one of the geometries is a GeometryCollection?
My postgis_full_version() is:
"POSTGIS="1.3.1" GEOS="2.2.3-CAPI-1.1.1" PROJ="Rel. 4.4.9, 29 Oct 2004"
USE_STATS"
When I try to execute the following statement:
SELECT X1.GEOM,X1.NAME,X1.ID FROM MULTITEST X1
WHERE X1.GEOM && SetSRID('BOX3D(174259.098 487844.529, 177282.329
484821.298)'::box3d,28992)
AND intersects (X1.GEOM, SetSRID('BOX3D(174259.098 487844.529, 177282.329
484821.298)'::box3d,28992))
I get the error message:
ERROR: Relate Operation called with a LWGEOMCOLLECTION type. This is
unsupported
SQL Status:XX000
I already digged the source code a bit and found the apparent source of the
message in lwgeom_geos_c.c. It's the check errorIfGeometryCollection(...).
Is there any chance to perform an intersection between a Box and a
GeometryCollection anyway? Or are there plans to implement this?
Thanks in advance,
--
Markus Schneider
l a t / l o n GmbH
Aennchenstrasse 19 53177 Bonn, Germany
phone ++49 +228 18496-0 fax ++49 +228 18496-29
http://www.lat-lon.de http://www.deegree.org
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