[postgis-users] Intersects with empty boxes error

[Daniel FAIVRE]

Ok, thank you, but:
1) It worked on previous versions.
2) geometryfromtext('BOX3D(10 10, 10 10)', -1) does NOT fail to create a 
geometry, even if the box collapses to a point. Should it allow creating 
"geos unvalid geometries" ?

DF

strk at refractions.net wrote:

>On Tue, Jan 25, 2005 at 05:13:22PM +0100, Daniel FAIVRE wrote:
>  
>
>>Hello,
>>
>>With a code developped for previous versions, I've used to test 
>>intersections, within, or contains with "point  boxes": like this:
>>
>>1) SELECT intersects(geometryfromtext('BOX3D(10 10, 10 10)', -1), 
>>geometryfromtext('BOX3D(0 0, 20 20)', -1))
>>
>>A true result is expected, like for:
>>
>>2) SELECT intersects(geometryfromtext('BOX3D(10 10, 10 10)', -1), 
>>geometryfromtext('BOX3D(0 0, 20 20)', -1))
>>
>>My new version is:
>>POSTGIS=0.9.1 GEOS=2.1.1 PROJ=Rel. 4.4.7, 31 March 2003 USE_STATS 
>>DBPROC=0.0.1 RELPROC=0.0.1
>>The old one was a postgis 0.8.1 with GEOS 1.0
>>
>>It has worked before, but now, request 1 return a false result. Is it a 
>>known bug ?
>>    
>>
>
>Your BOX3D is not a valid GEOS geometry (collapses to a POINT).
>You can't expect operations on non-valid geoms to return valid results.
>
>--strk;
>
>  
>
>>Sincerely yours,
>>
>>Daniel FAIVRE
>>
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>>    
>>