[postgis-users] geos result sets

[David Blasby]

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