[postgis-users] Re: How does PostGIS treat "garbage" lat/long coords?

Stephen Davies sdc at sdc.com.au
Mon Apr 21 17:41:45 PDT 2008


Thanks guys. I shall go with the constraint idea using Paul's syntax.

BTW, where is POINT(140.6365441 -304.409527)?

Cheers,
Stephen

>Stephen,
>
>To add to what Paul said, you can also put a constraint on your table with
>the check to make sure no values outside of the correct range make it into
>the table in the first place.
>
>David
>
>On Sun, Apr 20, 2008 at 5:20 PM, Paul Ramsey <pramsey at cleverelephant.ca>
>wrote:
>
>> This?
>>
>> select id from thetable where st_xmax(the_geom) > 180 or
>> st_xmin(the_geom) < -180 or st_ymax > 90 or st_ymin < -90;
>>
>> P
>>
>> On Sun, Apr 20, 2008 at 12:44 AM, Stephen Davies <sdc at sdc.com.au> wrote:
>> > One of my users has been entering garbage lat/long coordinates for
>> geometries
>> >  (SRID 4283). eg POINT(140.6365441 -304.409527) instead of
>> >  POINT(140.6365441 -34.409527)
>> >
>> >  PostGIS does not object to this but I cannot see what the value is
>> interpreted
>> >  to mean.
>> >  Is there a simple way to test for such entries?
>> >
>> >  Cheers and thanks,
>> >  Stephen Davies
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