[Qgis-developer] Update on the work we are doing for an overhauled metadata system in QGIS 3.0

[Tim Sutton]

Hi devs and users (with apologies for cross posting)

I just wanted to raise a bit of awareness for the work we are doing to build a 
new metadata system for the upcoming QGIS 3.0 release. We are planning to work 
in phases, with the current work addressing the first 5 'work packages', namely:

1) Defining a well thought out but simple QGIS specific schema for internal 
representation of metadata (led by Angelos Tzotsos)
2) Implementing a QgsMetadata utility class that will be a property of every 
map layer in QGIS (led by Nyall Dawson)
3) Implementing a data store for storing metadata (led by Joana Simoes)
4) Implementing a metadata viewer for layer metadata (see 
https://github.com/qgis/QGIS/pull/4316 for the first work landing already on 
this) (led by myself and Etienne Trimaille)
8) Implement a metadata editor for layer metadata (led by myself and Etienne 
Trimaille)

You can find out more about these work packages at our QEP (QGIS Enhancement 
Proposal) here:

https://github.com/qgis/QGIS-Enhancement-Proposals/issues/91

There are a number of other work packages (5-7, 9-12) that we plan to implement 
in a follow up round which deal with project ('service') level metadata, along 
with some other great things we have in mind for metadata down the line. Items 
1,2,4 and 8 above are currently funded (thanks to our friends at 
WorldBank/GFDRR (https://www.gfdrr.org) and NINA(http://www.nina.no/english)). 
Item 3 above is still in need of funding (8,500 USD) so if your organisation 
can help, please contact me! If you can't help with funding, we would still 
love to get your feedback - particularly on the metadata schema that has been 
developed by Angelos Tzotsos and Joana Simoes. You can find their proposed 
schema here: 

https://github.com/qgis/QGIS/pull/4330/files

We encourage you to make inline comments in the pull request or contact us 
offlist to discuss if needed.

Best regards

Tim
—










Tim Sutton

Co-founder: Kartoza
Project chair: QGIS.org

Visit http://kartoza.com  to find out about open source:

Desktop GIS programming services
Geospatial web development
GIS Training
Consulting Services

Skype: timlinux 
IRC: timlinux on #qgis at freenode.net

Kartoza is a merger between Linfiniti and Afrispatial

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Re: [Qgis-developer] Reading GeoJson

[Tom Chadwin]

Paolo Cavallini wrote
>>It hasn't exported JSONP, has it?
> 
> You're right.
> So, a bug in lizmap?

I don't know Lizmap, but I wouldn't say it's a bug. JSONP can be loaded in
from anywhere, without having to configure CORS. It's therefore arguably the
best export format for geo vector data, if you don't know where it is going
to be hosted. It's what qgis2web exports, too. 

Tom



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Re: [Qgis-developer] Reading GeoJson

[Paolo Cavallini]

Il 4 aprile 2017 18:28:36 GMT+00:00, Tom Chadwin  ha 
scritto:
>It hasn't exported JSONP, has it?
>
>Tom
>
>
>
>-
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You're right.
So, a bug in lizmap?
Thanks.
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Re: [Qgis-developer] Reading GeoJson

[Tom Chadwin]

It hasn't exported JSONP, has it?

Tom



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Re: [Qgis-developer] 2.18.6?

[Tom Chadwin]

OSGeo4W has 2.18.5-2 and a -2 for LTR. Don't know if those caught all the
major issues. 

Tom



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[Qgis-developer] Reading GeoJson

[Paolo Cavallini]

Hi all,
I cannot read a GeoJson as exported from QGIS Server through Lizmap. I 
get a

Data source is invalid (Failed to read GeoJSON data)
error. Anyone has a hint?
Thanks.
--
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
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[Qgis-developer] 2.18.6?

[Paolo Cavallini]

Hi all,
what is the final decision about the release of a bugfix release for 2.18.5?
Sorry if I missed the outcome of the discussion.
Thanks.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
https://www.google.com/trends/explore?date=all=IT=qgis,arcgis
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Re: [Qgis-developer] QGIS Grant Proposals Round #2

[Tim Sutton]

Hi
> On 04 Apr 2017, at 11:47 AM, Mathieu Pellerin  wrote:
> 
> Tim,
> 
> Great to see the new logo prominently featured on the 1st page.
> 
> BTW, you might want to update your signature to make use of the new logo too.
> 

Good idea!

Regards





---

Tim Sutton
QGIS Project Steering Committee Chair
t...@qgis.org




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Re: [Qgis-developer] Are there plans to create a unique "Add layer" tool?

[Stéphane Henriod]

Thanks Nyall!

Here I just created a Gdoc to collect info mentioned in your points 1-4 + a:

https://docs.google.com/document/d/1aMX9jOfl10q8oETRzOHSHnRpHCc7UJ1dDnCCq3VyTAY/edit?usp=sharing

All interested, feel free to contribute, I might not have the full overview

Thanks and cheers

Stéphane



“When you travel, remember that a foreign country is not designed to make
you comfortable. It is designed to make its own people comfortable." --
Clifton Fadiman

2017-04-04 13:53 GMT+06:00 Nyall Dawson :

> On 4 April 2017 at 17:46, Stéphane Henriod  wrote:
> > Thanks a lot Anita for the info!
> >
> > I re-located the issue: http://hub.qgis.org/issues/9451
> >
> > Not sure though if this will make it alive again. Let's see if this
> seems to
> > be a priority for enough users...
> >
>
> I'd say a good plan to move this forward would be to:
>
> 1. conduct a thorough survey of what's available via the individual
> add vector layer dialogs vs what's currently available in the browser
> 2. rank each of the missing settings vs whether or not they are still
> required
> 3. file issues for these missing settings
> 4. ...and get these fixed/implemented
>
> a. While this is underway I'd also suggest the UX team could test and
> evaluate Anita's plugin to identify whether the browser alone is a
> sufficient replacement or whether some tweaks would be required to
> make it a suitable replacement without any loss of "user friendliness"
>
> 1,2,3 and (a) don't require any development experience, so would be a
> great project for any interested user to undertake. I suspect 4
> wouldn't be much work for a developer either after all this groundwork
> is done.
>
> Nyall
>
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Re: [Qgis-developer] Basic Processing plugin questions

[Tom Chadwin]

Thanks, Victor - clear as a bell.

Tom



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Re: [Qgis-developer] Basic Processing plugin questions

[Victor Olaya]

>> How about outputting nothing at all (in a Processing context, I mean)? I
>> presume that is also acceptable? Or is the best approach in such a case to
>> output the inputs, as it were?

Depends on the algorithm. If the algorithm modifies a layer, it is a
good idea to output that same layer, so then it can be linked to a new
algorithm in the modeler. If your algorithm does something that doesn
not "produce" anything at all (for instance, the GeoServer pluin has
Processing algs to deploy a layer to a GeoServer instance), then it's
ok to not have any output

Both options are accepted by the Processing syntax
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Re: [Qgis-developer] Basic Processing plugin questions

[Tom Chadwin]

Thanks, Victor.


volaya wrote
>> 3. Must a Processing plugin output a layer?
> 
> No. It can output layers, tables, numbers, string...in any combination
> you want, just like input parameters

How about outputting nothing at all (in a Processing context, I mean)? I
presume that is also acceptable? Or is the best approach in such a case to
output the inputs, as it were?



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Re: [Qgis-developer] Basic Processing plugin questions

[Victor Olaya]

>
> 1. Can a Processing plugin only take a single layer as input, or can it take
> more?

It can take several one-layer parameters (so, in the end, there is a
fixed number of them), or take a multiple-layer parameter, which is a
single parameter but the user can select a list with an undetermined
number of layers (even an empty list, if allowed)
>
> 2. Can a Processing plugin take *any* layer, rather than having to choose
> between raster and vector?

No, not at the moment. The multiple input can have several layer types
at once, but single layers can't

>
> 3. Must a Processing plugin output a layer?

No. It can output layers, tables, numbers, string...in any combination
you want, just like input parameters

Hope this helps
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Re: [Qgis-developer] QGIS Grant Proposals Round #2

[Mathieu Pellerin]

Tim,

Great to see the new logo prominently featured on the 1st page.

BTW, you might want to update your signature to make use of the new logo
too.

Math

On Tue, Apr 4, 2017 at 4:42 PM, Tim Sutton  wrote:

> Hi All
>
> Thanks for your patience waiting for the grant proposals to be announced.
> I am pleased to say we have 13 really great proposals this round. You can
> read all about it here:
>
> http://blog.qgis.org/2017/04/04/update-on-the-qgis-grant-applications/
>
> Voting members should have received an email inviting them to cast their
> votes on the proposals - we will announce the results later this month.
>
> Regards
>
> Tim
>
>
>
>
> ---
>
> *Tim Sutton*
> QGIS Project Steering Committee Chair
> t...@qgis.org
>
>
>
>
>
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[Qgis-developer] QGIS Grant Proposals Round #2

[Tim Sutton]

Hi All

Thanks for your patience waiting for the grant proposals to be announced. I am 
pleased to say we have 13 really great proposals this round. You can read all 
about it here:

http://blog.qgis.org/2017/04/04/update-on-the-qgis-grant-applications/ 


Voting members should have received an email inviting them to cast their votes 
on the proposals - we will announce the results later this month.

Regards

Tim





---

Tim Sutton
QGIS Project Steering Committee Chair
t...@qgis.org




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[Qgis-developer] Basic Processing plugin questions

[Tom Chadwin]

Hello all

I'm looking at writing a Processing plugin, but I have some incredibly basic
questions, as I've never really used Processing myself:

1. Can a Processing plugin only take a single layer as input, or can it take
more?

2. Can a Processing plugin take *any* layer, rather than having to choose
between raster and vector?

3. Must a Processing plugin output a layer?

I'm sure I'll have more, so apologies in advance.

Thanks

Tom



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Re: [Qgis-developer] Are there plans to create a unique "Add layer" tool?

[Nyall Dawson]

On 4 April 2017 at 17:46, Stéphane Henriod  wrote:
> Thanks a lot Anita for the info!
>
> I re-located the issue: http://hub.qgis.org/issues/9451
>
> Not sure though if this will make it alive again. Let's see if this seems to
> be a priority for enough users...
>

I'd say a good plan to move this forward would be to:

1. conduct a thorough survey of what's available via the individual
add vector layer dialogs vs what's currently available in the browser
2. rank each of the missing settings vs whether or not they are still required
3. file issues for these missing settings
4. ...and get these fixed/implemented

a. While this is underway I'd also suggest the UX team could test and
evaluate Anita's plugin to identify whether the browser alone is a
sufficient replacement or whether some tweaks would be required to
make it a suitable replacement without any loss of "user friendliness"

1,2,3 and (a) don't require any development experience, so would be a
great project for any interested user to undertake. I suspect 4
wouldn't be much work for a developer either after all this groundwork
is done.

Nyall
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[Qgis-developer] Are there plans to create a unique "Add layer" tool?

[Stéphane Henriod]

Thanks a lot Anita for the info!

I re-located the issue: http://hub.qgis.org/issues/9451

Not sure though if this will make it alive again. Let's see if this seems
to be a priority for enough users...

All the best

Stéphane


Le mardi 4 avril 2017, Anita Graser > a écrit :

> On Tue, Apr 4, 2017 at 7:46 AM, Stéphane Henriod 
> wrote:
>
>> To go one step further :-) Any reason why it couldn't be polished and
>> directly integrated in the core? As a non-developer, I maybe underestimate
>> the workload here? Isn't it something that could "easily" be done by one of
>> the core developers without requiring substantial additional funding?
>>
>
> ​Mostly, the interested core developers wanted to implement something more
> sophisticated than my hack ... but then they didn't get around to doing it
> ...
>
> I think there is a ticket on Redmine or Github on this issue. Maybe you
> can locate and revive it.
>
> Best wishes,
> Anita​
>
>
>
>
>
>

-- 

“When you travel, remember that a foreign country is not designed to make
you comfortable. It is designed to make its own people comfortable." --
Clifton Fadiman
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Re: [Qgis-developer] Are there plans to create a unique "Add layer" tool?

[Anita Graser]

On Tue, Apr 4, 2017 at 7:46 AM, Stéphane Henriod 
wrote:

> To go one step further :-) Any reason why it couldn't be polished and
> directly integrated in the core? As a non-developer, I maybe underestimate
> the workload here? Isn't it something that could "easily" be done by one of
> the core developers without requiring substantial additional funding?
>

​Mostly, the interested core developers wanted to implement something more
sophisticated than my hack ... but then they didn't get around to doing it
...

I think there is a ticket on Redmine or Github on this issue. Maybe you can
locate and revive it.

Best wishes,
Anita​
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Re: [Qgis-developer] A couple of ideas for QGIS

[Matthias Kuhn]

Hi Roy,

These are both addressed for geopackage already.

Number one is a core feature (thanks to Even Rouault), number two is a
plugin called "qgpkg" (thanks to Sourcepole) and would IMO really be a
good candidate for core functionality.

Bests

Matthias

On 4/3/17 9:37 AM, roy roy wrote:
> Dear QGIS Developers,
>
> I think QGIS would benefit adding the following features;
> if you find them interesting they may be added to QGIS 3.0:
>
> 1 - Better support for Spatialite tables:
>
> it is now impossible to remove columns from a spatialite
> table, i know it's not supported by SQLite but there is a
> simple work around that consists in creating a new table
> without the removed column/s
>
> 2 - Save project data into SQLite/Spatialite db:
>
> this would grant users the choice to save all the work
> in one unique file ( data, layer style ), very handy for
> backups and sharing/shipping
>
> i'm not a c++ developer but i can help with docs
> and testing.
> best regards,
>
> Roy.
>
>
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