Re: [QGIS-Developer] Dropping eVis plugin?

[Nyall Dawson]

On 23 May 2018 at 15:31, Alexander Bruy  wrote:
> 2018-05-22 23:24 GMT+03:00 Nyall Dawson :
>> If you'd asked me last week, I'd have been a strong +1... but then I
>> attended a conference where a workflow using evis was demonstrated
>> which revealed that there's a significant number of users of this
>> plugin still.
>
> Are there slides or maybe video available from this presentation? From
> my understanding all functionality provided by the plugin already available
> as QGIS core features, but maybe I miss something.

Unfortunately not - but the presenter demonstrated using the next/prev
buttons to scroll through the photos and edit records while they do
that. An easy next/prev button to navigate tables like evis has isn't
something we currently have.

Nyall



>
> --
> Alexander Bruy
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Re: [QGIS-Developer] Zonal statistics not working with different CRS

[Nyall Dawson]

On 24 May 2018 at 18:41, matteo  wrote:
> Hi Nyall,
>
> sorry for the late reply.
>
>> Confirmed, but fortunately the fix is trivial.
>
> good ;) should I open a ticket?

Open a ticket, yes. I'll resolve during the 3.2 bug fixing.

Nyall

>
> thanks
>
> Matteo
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Re: [QGIS-Developer] Missing custom rendering properties in QGIS3 Server

[Nyall Dawson]

On 23 May 2018 at 21:26, Sören Gebbert  wrote:
> Dear Nyall,
> what would be an officially supported and stable implementation?

Sorry - to give more info - basically this setting was added as a
hidden option because it was a couple of lines of code change which
works in certain circumstances. Basically you need to be using a map
canvas to render, and must have all the render caching options enabled
(which result in layers being rendered onto separate image surfaces
before compositing them together).

Unfortunately a proper implementation of this, which works across all
of QGIS (including server and print layouts) isn't trivial at all.
(I'd estimate something like 2-4 weeks of development effort). In the
end it comes down to funding - it's a highly desirable feature, and
the only reason it hasn't been done yet is due to the complexity of
the changes. So someone has to sponsor a developer to implement the
changes. Ways you could assist would be:

- approaching QGIS core developers and getting an estimate for the
funds required

- directly sponsor the change

OR

- approach interested organisations and user groups and "co-fund" the changes
- organise a "crowd funding" effort to raise the funds

Hope that helps!
Nyall

>
> Are there any plans to implement this functionality in a better way so
> it will work in desktop and server?
>
> Can i help to implement this kind of functionality?
>
> Best regards
> Sören
>
> 2018-05-23 12:33 GMT+02:00 Nyall Dawson :
>> On 23 May 2018 at 18:56, Sören Gebbert  wrote:
>>> Dear developers,
>>> i am trying to use the undocumented custom vector layer property
>>> "rendering/renderAboveLabels" in QGIS3 server with no success.
>>>
>>> Storing this property in a QGIS project file enables the rendering of
>>> vector layers after the labeling is done. This works fine on QGIS3
>>> desktop, but not on QGIS3 server. I looked into the server code and
>>> realized that the QGS WMS server uses two renderers
>>> (QgsMapRendererParallelJob, QgsMapRendererCustomPainterJob) of which
>>> one (QgsMapRendererParallelJob) should support the custom property.
>>> However, i can not convince the server to apply the custom property
>>> when parallel rendering is enabled.
>>>
>>> What am i doing wrong? Are there differences between GQIS3 desktop and
>>> server in handling project files and layer properties?
>>>
>>> Why does QgsMapRendererCustomPainterJob not support the custom
>>> property  "rendering/renderAboveLabels"?
>>
>> It's undocumented for a reason - it was added as a quick hack to
>> support this function in very limited circumstances, but isn't part of
>> the stable or public API as it's not officially supported.
>>
>> In the long term we need a proper, officially supported and stable way
>> to handle this use case.
>>
>> Nyall
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Re: [QGIS-Developer] Trying to upstream fixes for libdxfrw

[Nyall Dawson]

On 24 May 2018 at 02:20, Vittorio Carlo Alfieri  wrote:

> I would be willing to help, if so desired, with any of the following:
> 1. Contacting the LibreCAD team to see if rvt/libdxfrw is going to be their
> upstream going forward.
> 2. Rebase your modifications of libdxfrw onto rvt/libdxfrw source tree and
> create the qgis/libdxfrw fork.
> 3. Try to upstream whatever commit fixes the bug that is affecting me.
>
> Regardless, thank you for the prompt and helpful response,
> Vittorio Alfieri

Thanks for raising this issue Vittorio - please keep us advised of
developments, as there's obviously benefits to all interested projects
if we can work together on this!

Nyall
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[QGIS-Developer] Plugin [87] Profile tool approval notification.

[noreply]

Plugin Profile tool approval by pcav.
The plugin version "[87] Profile tool 4.1.1" is now approved
Link: http://plugins.qgis.org/plugins/profiletool/
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[QGIS-Developer] Plugin [499] CalcArea approval notification.

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Plugin CalcArea approval by pcav.
The plugin version "[499] CalcArea 1.2.2" is now approved
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Re: [QGIS-Developer] Zonal statistics not working with different CRS

[matteo]

Hi Nyall,

sorry for the late reply.

> Confirmed, but fortunately the fix is trivial.

good ;) should I open a ticket?

thanks

Matteo
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Re: [QGIS-Developer] expression variable for rendering with QGIS server

[Otto Dassau]

Am Thu, 24 May 2018 08:59:25 +1000
schrieb Nyall Dawson :

> On 24 May 2018 at 00:16, Otto Dassau  wrote:
> > Dear developers,
> >
> > I use expression variables within the rule based renderer. For example:
> >
> > CASE WHEN @project_title LIKE '%adult' THEN "fclass" = 'school' ELSE
> > "fclass" = 'kindergarten' END
> >
> > This works in QGIS desktop but not with QGIS Server Version 2 and 3. Does
> > QGIS server not support this feature at all? Or do I miss something?  
> 
> QGIS server in 2.x used an older, deprecated rendering facility, which
> had no knowledge of variables and how to set them. Changing this was a
> substantial body of work which was completed for 3.0.
> 
> (There's basically no fix possible for this in 2.x - the solution is
> to use 3.0 here.)
> 
> Nyall

Thanks Nyall for the explanation, we will go for version 3 then.

Regards,
Otto
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