Hi all
I've added the checkbox to only load the features intersecting the
current extent
(https://github.com/qgis/QGIS/commit/e4e4839823fad1b980cb815889c18edb9c4352b7).
Regards,
Marco
--
Dr. Marco Hugentobler
Sourcepole - Linux & Open Source Solutions
Weberstrasse 5, CH-8004 Zürich, Switzerland
marco.hugentob...@sourcepole.ch http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee
On 31.03.2015 12:01, Peter Borissow wrote:
Thanks Giovanni-
Do you know when the dev team is planning the next release? I
wonder if there's time to get this fixed before the next release.
Peter
------------------------------------------------------------------------
*From:* G. Allegri <gioha...@gmail.com>
*To:* Peter Borissow <peter.boris...@yahoo.com>
*Cc:* "t...@wildintellect.com" <t...@wildintellect.com>;
"qgis-user@lists.osgeo.org" <qgis-user@lists.osgeo.org>
*Sent:* Tuesday, March 31, 2015 5:15 AM
*Subject:* Re: [Qgis-user] BBox Filter for WFS
I totally agree with you... but I'm not the mantainer of this code :)
I think that a nre ticket is not necessary. Yuo could add new
suggestions/ideas to the existing one.
giovanni
2015-03-27 10:04 GMT+01:00 Peter Borissow <peter.boris...@yahoo.com
<mailto:peter.boris...@yahoo.com>>:
Thanks Alex-
Do you think we should open a new ticket?
Peter
------------------------------------------------------------------------
*From:* Alex Mandel <tech_...@wildintellect.com
<mailto:tech_...@wildintellect.com>>
*To:* Peter Borissow <peter.boris...@yahoo.com
<mailto:peter.boris...@yahoo.com>>; G. Allegri <gioha...@gmail.com
<mailto:gioha...@gmail.com>>
*Cc:* "qgis-user@lists.osgeo.org
<mailto:qgis-user@lists.osgeo.org>" <qgis-user@lists.osgeo.org
<mailto:qgis-user@lists.osgeo.org>>
*Sent:* Thursday, March 26, 2015 5:10 PM
*Subject:* Re: [Qgis-user] BBox Filter for WFS
That's exactly how I would expect it to work.
To cache a whole WFS and start seems overboard, in that case why
wouldn't you just download the data set. BBOX is a must for web
services
as a main part of the purpose is to allow users to only grab the part
they need when they need it.
Thanks,
Alex
On 03/26/2015 01:28 PM, Peter Borissow wrote:
> Thanks Giovanni- It seems to me that the "cache features"
option and the option to fetch only the features intersecting the
current map extent should be 2 separate options.
>
> For example, when I open a WFS layer, I might want to retrieve
only the features intersecting the current map extent. Once it is
loaded, I would want QGIS to cache the features.
>
> This is a common rendering technique used for WMS. A client
requests an initial BBOX and renders the image. The when the
client pans, a new request is made but only for the "missing"
area. The original response is cached and merged with the second
response. Just a thought...
>
>
> Peter
>
>
> From: G. Allegri <gioha...@gmail.com
<mailto:gioha...@gmail.com>>
> To: Peter Borissow <peter.boris...@yahoo.com
<mailto:peter.boris...@yahoo.com>>
> Cc: "qgis-user@lists.osgeo.org
<mailto:qgis-user@lists.osgeo.org>" <qgis-user@lists.osgeo.org
<mailto:qgis-user@lists.osgeo.org>>
> Sent: Thursday, March 26, 2015 1:27 PM
> Subject: Re: [Qgis-user] BBox Filter for WFS
>
> As Marco explained in the realted post on qgis-dev the bbox
filter should be used if "cahce features" option is turned off,
but at the moment it seems broken, maybe because of new
improvements in the rendering process. The issue has been already
reported in http://hub.qgis.org/issues/11968
> In the meanwhile a manual filter could be set within the WFS add
layer dialog.
> giovanni
> 2015-03-26 16:07 GMT+01:00 G. Allegri <gioha...@gmail.com
<mailto:gioha...@gmail.com>>:
>
>
>
> It's an intereseting question Peter. I've verified that the wfs
provider still requests the whole data the first time, then it
stores eveything (and create a spatial index for subsequent
calls).I suppose that sponsoring this feature could be the right
way to have it, but I'm curious to know what the latest answer
from Marco was referring to (I mean within the svn code he
indicates) [1]
> Giovanni
> [1] http://hub.qgis.org/issues/1421#note-4
> 2015-03-25 12:25 GMT+01:00 Peter Borissow
<peter.boris...@yahoo.com <mailto:peter.boris...@yahoo.com>>:
>
> Sorry for being impatient but I was wondering if anyone can shed
some light on this issue.
> I have a WFS that's serving out over a billion features (several
million records per layer). When I add a layer from the WFS into
QGIS, it calls DescribeFeature and then GetFeature without a BBOX
filter. QGIS then waits for ALL of the data to come back (which
can take a while).
> In the past, there was an option only fetch features that
intersect the current map extent. Without this option, it is
extremely difficult to do anything with the WFS using QGIS.
>
> IMHO, this is a pretty significant bug but hopefully one that
should be really easy to fix. Afterall, the code was there at some
point...
>
>
> Related (unanswered) questions on stack exchange:
>
>
http://gis.stackexchange.com/questions/53387/quantumgis-1-8-how-to-define-bounding-box-within-add-wfs-layer-dialog
>
http://gis.stackexchange.com/questions/59656/is-there-free-desktop-wfs-client-with-bbox-support
>
> Thanks,Peter
>
>
>
> From: Peter Borissow <peter.boris...@yahoo.com
<mailto:peter.boris...@yahoo.com>>
> To: "qgis-user@lists.osgeo.org
<mailto:qgis-user@lists.osgeo.org>" <qgis-user@lists.osgeo.org
<mailto:qgis-user@lists.osgeo.org>>
> Sent: Monday, March 23, 2015 2:03 PM
> Subject: BBox Filter for WFS
>
> Hello- I noticed that the WFS client in QGIS 2.8 and 2.6 do
not seem to pass a bbox filter when requesting features.
>
> It seems that in the past, QGIS had an option to only fetch
features that intersect the current map extent:
>
> http://hub.qgis.org/issues/1421
>
> Based on this thread, it looks like this feature was disabled in
1.8:
> http://osdir.com/ml/qgis-user-gis/2011-10/msg00308.html
>
> Is this feature still missing or is there a way to enable this
feature in the latest release?
>
> Thanks,Peter
>
>
>
>
--
Giovanni Allegri
http://about.me/giovanniallegri
Gis3W - http://gis3w.it <http://gis3w.it/>
Ikare - http://ikare.it <http://ikare.it/>
Twitter: https://twitter.com/_giohappy_
blog: http://blog.spaziogis.it <http://blog.spaziogis.it/>
GEO+ geomatica in Italia http://bit.ly/GEOplus
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