Re: [Qgis-user] Changes in Python versions on QGIS 3.18

[C Hamilton]

It has not seemed to have caused any problems with my plugins.

Calvin

On Wed, Mar 24, 2021 at 9:03 PM Nyall Dawson  wrote:

> On Thu, 25 Mar 2021 at 10:41, Pedro Camargo 
> wrote:
> >
> > Hello,
> >
> > I am not sure this is the appropriate mailing list to send this, but
> here it goes.
> >
> > I have noticed that QGIS 3.18 for Windows has shipped with Python 3.9,
> after having updated to 3.8 just a couple of versions ago.
>
> I'm curious -- what's the pain in a Python update? They usually have
> very little harmful impact on python code.
>
> Nyall
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Re: [Qgis-user] Changes in Python versions on QGIS 3.18

[Greg Troxel]

Nyall Dawson  writes:

> On Thu, 25 Mar 2021 at 10:41, Pedro Camargo  wrote:
>>
>> Hello,
>>
>> I am not sure this is the appropriate mailing list to send this, but here it 
>> goes.
>>
>> I have noticed that QGIS 3.18 for Windows has shipped with Python 3.9, after 
>> having updated to 3.8 just a couple of versions ago.
>
> I'm curious -- what's the pain in a Python update? They usually have
> very little harmful impact on python code.

Speaking as someone who works on a portable packaging system (pkgsrc),
not particularly related to qgis:

We tend to add new python versions more or less immediately (in
parallel), change the default with due consideration, and then retire
older versions when they are both out of support and no longer needed
(in that anything that works with the old version also works with some
newer version).

It's quite common for python packages to fail with new 3.x versions, so
we are somewhat shy about bumping the default version.

We just a few months ago switched from 3.7 to 3.8, and that was probably
overdue.  At the time, some asked "why not 3.9" and the answer on
looking was pretty clear: a fairly large number of packages did not
build/work with 3.9.  I am not sure it was 10%, but it was enough that
having those packages be missing/broken with the default version seemed
like a bigger minus than the positive benefit of a 3.8->3.9 move.

So yes, for a given minor bump and a given package, the odds of trouble
are fairly low, but the odds that a group of 100 packages has zero
trouble is also pretty low, in my experience.

Depending on packaging norms, the timeline involves not only the change
necessary for 3.N++ to be accomodated, but then a release made.  I
expect pkgsrc will ask the "is it time for 3.9?" question again in
April/May (we have quarterly cycle), and it feels like even odds if it
will be time.

So I am a bit surprised about the official windows installer moving to
3.9 already.  (But I don't use Windows, and I build qgis from sources
via pkgsrc, currently python 3.8.)


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[Qgis-user] QGIS-SERVER WFS3 Supports Shapefiles Layers Request

[1520 gis]

Dear users,

I have a qgis project that contains postgis and shapefiles layers. QGIS-
Server WFS3 Collections list only postgis layers, but shapefiles. Does WFS3
request support shapefile layers ?

Kind regards

Julierme
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Re: [Qgis-user] QGIS-SERVER WFS3 Supports Shapefiles Layers Request

[Alessandro Pasotti]

On Thu, Mar 25, 2021 at 5:54 PM 1520 gis
 wrote:
>
> Dear users,
>
> I have a qgis project that contains postgis and shapefiles layers. QGIS- 
> Server WFS3 Collections list only postgis layers, but shapefiles. Does WFS3 
> request support shapefile layers ?

Absolutely yes, QGIS server makes no difference between data providers.

-- 
Alessandro Pasotti
QCooperative:  www.qcooperative.net
ItOpen:   www.itopen.it
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Re: [Qgis-user] QGIS-SERVER WFS3 Supports Shapefiles Layers Request

[Jorge Gustavo Rocha]

Hi,

As Alessandro said, shapefiles are supported.

Remember to have those shapefiles available on the server side. Maybe
the server is able to connect to your Postgis provider, but not able to
access the shapefiles.

Make sure QGIS Server has access to the shapefiles.

Regards,

Jorge Gustavo

Às 16:54 de 25/03/21, 1520 gis escreveu:
> Dear users,
>
> I have a qgis project that contains postgis and shapefiles layers.
> QGIS- Server WFS3 Collections list only postgis layers, but
> shapefiles. Does WFS3 request support shapefile layers ?
>
> Kind regards
>
> Julierme
>
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[Qgis-user] First steps with 3D Scan Data?

[Bernd Vogelgesang]

Hi folks,

in a project on a former dumpside now to be transformed into a sand
lizard habitat, I saw the chance to get my hands dirty for the first
time on 3D scan data (terrestrial). I received 10GB of stuff, and now
I'm completely lost.

The data consists of .rwcx files, .tzf files and lots of other stuff.

Is there any chance that I can process any of this data with an open
source stack?
Or what should be done, to make them digestible?

Second step: There seem to be 32 different scans of the area form all
angles. In case I succeed to somehow load the data, how do I combine them ?

For the first steps, I actually "only" would like to generate a decent
DEM from the data to be able to place some features on a map for the
guys in charge to do the habitat stuff.

Any kind of hints or links to reads about this topic would be appreciated

Cheers,

Bernd


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Re: [Qgis-user] First steps with 3D Scan Data?

[David Greenewalt]

I know nothing of the data you have or the subject in general, but was 
intrigued a few years ago with software that would generate 3d models 
from photos ("scans from all angles"?).  Look at 
https://www.agisoft.com/features/standard-edition/ for example. May not 
be helpful or fruitful, but fun (and pretty incredible).


Good Luck,
David


On 3/25/2021 5:07 PM, Bernd Vogelgesang wrote:

Hi folks,

in a project on a former dumpside now to be transformed into a sand
lizard habitat, I saw the chance to get my hands dirty for the first
time on 3D scan data (terrestrial). I received 10GB of stuff, and now
I'm completely lost.

The data consists of .rwcx files, .tzf files and lots of other stuff.

Is there any chance that I can process any of this data with an open
source stack?
Or what should be done, to make them digestible?

Second step: There seem to be 32 different scans of the area form all
angles. In case I succeed to somehow load the data, how do I combine 
them ?


For the first steps, I actually "only" would like to generate a decent
DEM from the data to be able to place some features on a map for the
guys in charge to do the habitat stuff.

Any kind of hints or links to reads about this topic would be appreciated

Cheers,

Bernd


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Re: [Qgis-user] QGIS-SERVER WFS3 Supports Shapefiles Layers Request

[1520 gis]

Thank you Sr Alessandro and Jorge Gustavo for your reply.

Yes. The shapefiles are available in the same directory as the qgis .qgs
files.  And I can even make a GetFeature Request on them.

However by pulling the request below, the shapefiles layers are not listed,
only postgis:

http://10.0.0.113/cgi-bin/qgis_mapserv.fcgi/wfs3/api/collections/

Am I missing something?

Kind regards

Julierme


On Thu, Mar 25, 2021 at 2:16 PM Jorge Gustavo Rocha 
wrote:

> Hi,
>
> As Alessandro said, shapefiles are supported.
>
> Remember to have those shapefiles available on the server side. Maybe the
> server is able to connect to your Postgis provider, but not able to access
> the shapefiles.
>
> Make sure QGIS Server has access to the shapefiles.
>
> Regards,
>
> Jorge Gustavo
> Às 16:54 de 25/03/21, 1520 gis escreveu:
>
> Dear users,
>
> I have a qgis project that contains postgis and shapefiles layers. QGIS-
> Server WFS3 Collections list only postgis layers, but shapefiles. Does WFS3
> request support shapefile layers ?
>
> Kind regards
>
> Julierme
>
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> --
> [image: Logo] 
> *Geomaster*
> *Jorge Gustavo Rocha* | Software Engineer
> *e:* j...@geomaster.pt | *m:* +351 910 333 888
> *g:* 41.54094,-8.40490 | *v: * 510 906 109
> *a: * Rua António Cândido Pinto, 67, 4715-400 Braga
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[Qgis-user] What would it take to get BitTorrent links on the downloads page?

[Jeff Sonnentag]

I just downloaded 3.16.5 (since I can't really tell if things necessary are 
fixed in 3.18.1 and got burned before wasting a bunch of time trying to figure 
out if I was just stupid or if the program didn't work right) and it downloaded 
an OK rate (1.7 MB/sec) but I guess somebody must be paying for the bandwidth 
or it would be faster.

What would it take to get BitTorrent links on the downloads page, for 
potentially faster access and presumably less bandwidth somebody else is paying 
for to host the files?  I'm perfectly fine with seeding each version I use 
until the next update comes long.


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Re: [Qgis-user] First steps with 3D Scan Data?

[Priv. Doz. Dr. Maria Shinoto]

Definitely try the Agisoft solution, it is great. We use for recording 
archaeological on site and for artefacts.

Best, 
Maria

> Am 26.03.2021 um 07:17 schrieb David Greenewalt :
> 
> I know nothing of the data you have or the subject in general, but was 
> intrigued a few years ago with software that would generate 3d models from 
> photos ("scans from all angles"?).  Look at 
> https://www.agisoft.com/features/standard-edition/ for example.  May not be 
> helpful or fruitful, but fun (and pretty incredible).
> 
> Good Luck,
> David
> 
> 
> On 3/25/2021 5:07 PM, Bernd Vogelgesang wrote:
>> Hi folks, 
>> 
>> in a project on a former dumpside now to be transformed into a sand 
>> lizard habitat, I saw the chance to get my hands dirty for the first 
>> time on 3D scan data (terrestrial). I received 10GB of stuff, and now 
>> I'm completely lost. 
>> 
>> The data consists of .rwcx files, .tzf files and lots of other stuff. 
>> 
>> Is there any chance that I can process any of this data with an open 
>> source stack? 
>> Or what should be done, to make them digestible? 
>> 
>> Second step: There seem to be 32 different scans of the area form all 
>> angles. In case I succeed to somehow load the data, how do I combine them ? 
>> 
>> For the first steps, I actually "only" would like to generate a decent 
>> DEM from the data to be able to place some features on a map for the 
>> guys in charge to do the habitat stuff. 
>> 
>> Any kind of hints or links to reads about this topic would be appreciated 
>> 
>> Cheers, 
>> 
>> Bernd 
>> 
>> 
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[Qgis-user] WCS and boundingboxes

[Rob Thompson]

Hi All,
I'm trying to work with a large WCS raster and am struggling to find decent
documentation on how to do this in QGIS 3.16+:
1) Not really a QGIS question, but what's the best way to identify the WCS
protocols supported by a WCS server? (DescribeCoverage seems to work
regardless of what '&version' is specified)
2) What protocols are supported by QGIS 'wcs' raster driver? (I've tried
passing various keys to QgsRasterLayer... these show up in the provider
source but don't seem to have any effect) Does QGIS use  GDAL
 here?
3) Finally, how can I pass a boundingbox for WCS 1.1.1? Seems like the
protocol has shifted around a lot... so I'm not sure if the problem is my
syntax, the WCS server, or QGIS.

Many Thanks,

Seth
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