WFS GetFeature and GML data issue

[Paul Ramsey]

Hooray for the bounding box, our cruel task master! Let no query go
unbounded, and let the masses gnash their teeth, and quake in fear!

:)
P

Kralidis,Tom [Burlington] wrote:

> Hi,
>
> After offline email with Frank (thanks Frank!), it seems that this has
> to do with  the fact that my GML document bounding box of the data is
> outside of MAP/EXTENT in the mapfile.  If I change my MAP/EXTENT to -180
> -90 180 90, I indeed get all the data back.
>
> I guess the question is the behaviour of MAP/EXTENT for a WFS, and if a
> LAYER has extents outside the bounds of MAP/EXTENT, what happens when a
> client makes a blanket request and expects all the data?  Mind you if
> LAYER extents are larger than MAP/EXTENT, this should trigger the
> mapfile creator to think about whether they've applied the right
> MAP/EXTENT.  On the other hand, how does MAP/EXTENT, something that
> historically applies to the default extent of a mapping app for
> MapServer CGI, apply to OWS approaches?
>
> At the very least (as Frank suggests) the WFS server howto should warn
> about this.  I would post a doc bug for this but not until there is
> consensus that the way things behave now are the way they should.
>
> Comments?
>
> ..Tom
>
>
>
>>-----Original Message-----
>>From: Frank Warmerdam [mailto:fwarmerdam at gmail.com]
>>Sent: Wednesday, 16 March, 2005 15:20
>>To: Kralidis,Tom [Burlington]
>>Cc: MAPSERVER-DEV at lists.umn.edu
>>Subject: Re: [UMN_MAPSERVER-DEV] WFS GetFeature and GML data issue
>>
>>
>>On Wed, 16 Mar 2005 15:15:02 -0500, Kralidis,Tom [Burlington]
>><Tom.Kralidis at ec.gc.ca> wrote:
>>
>>>Hi,
>>>
>>>I have a LAYER defined with a GML document as the native
>>
>>data type.
>>
>>>The GML document has 21 features.
>>>
>>>When I run a WFS GetFeature against the entire dataset:
>>>
>>>
>>
>>http://devgeo.cciw.ca/cgi-bin/mapserv/ecows?version=1.0.0&service=WFS&
>>
>>>re
>>>quest=GetFeature&typename=neis&
>>>
>>>...I expect to have returned 21 features.  However the
>>
>>response only
>>
>>>returns 4.
>>
>>Tom,
>>
>>How does this file look to ogrinfo?  Can you post this GML
>>file for me to inspect?
>>
>>Best regards,
>>--
>>---------------------------------------+----------------------
>>----------
>>---------------------------------------+------
>>I set the clouds in motion - turn up   | Frank Warmerdam,
>>warmerdam at pobox.com
>>light and sound - activate the windows | http://pobox.com/~warmerdam
>>and watch the world go round - Rush    | Geospatial
>>Programmer for Rent
>
>