[postgis-users] geos result sets

[James S reid]

hi  - thanks and I appreciate that your times at a premium - Ive checked
that the geoms are valid and run the follwing sql (2 tables 1=large
poly,1=small polys (8 polys):

test=# select small.* into temp from small,large where
within(small.the_geom,large.the_geom) = TRUE;

dumping temp gives sthe GEOS result set seen in the screenshot attached
(along with the sql load files for the original shapes).

as you can see - AV gets all eight polys and GEOS only the seven?

Im I missing something or is there a bug?

cheers

james

----- Original Message ----- 
From: "David Blasby" <dblasby at refractions.net>
To: "PostGIS Users Discussion" <postgis-users at postgis.refractions.net>
Sent: Tuesday, February 24, 2004 5:48 PM
Subject: Re: [postgis-users] geos result sets


> Why dont you send us the actual query thats going wrong?
>
> ie. something like:
>
> select within(<polygon 1>,<polygon 2>);
>
> I need to see what <polygon 1> and <polygon 2> are to do any testing.
> Saying GEOS and ARC have a different answer isnt enough to diagnose a
> problem - I need a specific example.
>
> I, unfortunately, dont have time to sift through your data in PostGIS
> and ARC to find differences.
>
> Did you check to see if your geometries are valid (ie. select
> isvalid(the_geom) from <table>;)?
>
> dave
> _______________________________________________
> postgis-users mailing list
> postgis-users at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
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