Re: [Qgis-user] Inquiry Regarding Hardware Requirements for QGIS

[Adam Nielsen via QGIS-User]

> What are the minimum and recommended hardware requirements for QGIS?

For normal application use, a computer that's less than 10 years old is
probably fine.  I'm running it on a second hand office Dell from 2017
with no issues at all.  If your computer is capable of viewing modern
web sites then it is capable of running QGIS quite well.

These days computers are so fast that outside of some specific fields,
pretty much any computer will do the job for most things.

QGIS is not a particularly demanding application as far as these things
go.

> What type of graphics card is required/recommended: OpenGL (Open Graphics
> Library), NVIDIA CUDA (Compute Unified Device Architecture), or RTX (Ray
> Tracing eXtensions)?

If you use any of these things for your work, you will already know
exactly what you need.  If you have to ask the question, then you are
unlikely to need particular support for these technologies.

The aforementioned Dell I am using does not have a dedicated video card
and is using Intel onboard graphics (one of the most basic setups you
can get), and it works just fine with QGIS.

Cheers,
Adam.
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Re: [Qgis-user] MacOS GeoJSON download from Google bucket

[Adam Nielsen via QGIS-User]

> When I use QGIS under Windows and save a vector as a GeoJSON file,
> the uploaded file can be downloaded from the Google bucket as a file. When
> I use QGIS under MacOS, the GeoJSON file opens as a text file, when you
> push the download button in the Google bucket, instead of downloading the
> file.

I think this is probably down to the configuration of the web browser
and/or the operating system.

It's been a while, but you used to be able to configure "helper
applications" in the browser settings that controlled what action
happens when you open certain files.  I guess on one system it has set
up GeoJSON as a text file but you want to change it to a
binary/download instead.

Alternatively when it opens up as a text file you can just save that
(e.g. through the File menu) as it will give you the same result.

Cheers,
Adam.
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Re: [Qgis-user] can't apply mask on labels

[Emma Hain via QGIS-User]

Hi All
The mask option is great but if you cannot use it, I often grab a color
using the color picker from the background image and use that as a buffer
at 0.7. I choose the color that appears the most in the background image -
so sometimes dark and sometimes light.
Cheers
Em

On Fri, 8 Mar 2024 at 00:49, Johannes Kröger (WhereGroup) via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> Allowing bigger attachments might make our inboxes grow substantially.
> Mailing lists really aren't that useful in my opinion as you receive tons
> of mails when subscribed and lose considerable on ability if you do not
> keep them all, forever.
>
> I really like the idea of a Discourse forum
> https://lists.osgeo.org/pipermail/qgis-user/2024-January/053842.html ,
> there it would be no issue if people posted big images or fancy formatting
> as the messages are stored on the server for us and one can selectively
> subscribe via mail or visit with a browser.
>
> All the best, Hannes
> On 07.03.24 10:42, Andreas Neumann via QGIS-User wrote:
>
> Hi Richard,
>
> Is there a chance/way to increase the size limit from 200k to let's say
> 1MB. Most Screenshots are  bigger than the 200k and it is really
> cumbersome, having to post images on some other platform in order to share
> it with the mailing list.
>
> Do you know who at OSGeo I'd have to ask about this?
>
> Thanks,
>
> Andreas
>
> On 2024-03-07 10:06, Richard Duivenvoorde via QGIS-User wrote:
>
> Hi People,
>
>
>
> FYI: current messages are too big for the mailing list. We have a max of 
> 200KB per messages.
>
> We manually let all message through which are larger.
>
>
> When you answer, a large mail with a lot of images, please do not include the 
> full answer mail.
>
>
> That way the response will even be bigger, and be held by the mail list 
> software (until one of the admins releases these mails)...
>
> Thanks,
>
> Richard Duivenvoorde
>
>
> PS: even better: do not create html mails :-)  Keep your mails clean (text 
> only) with optionally some attachments for images...
>
> ___
> QGIS-User mailing list
> QGIS-User@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
>
>
> ___
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> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> --
> Johannes Kröger / GIS-Entwickler/-Berater
>
> *
> FOSSGIS Konferenz
> 20.-23. März 2024 in Hamburghttps://www.fossgis-konferenz.de/2024/
>
> WhereGroup-Beiträge auf der 
> FOSSGIShttps://wheregroup.com/unternehmen/aktuelles/
> *
>
> WhereGroup GmbH
> c/o KK03 GmbH
> Lange Reihe 29
> 20099 Hamburg
> Germany
>
> Tel: +49 (0)228 / 90 90 38 - 36
> Fax: +49 (0)228 / 90 90 38 - 11
> johannes.kroe...@wheregroup.comwww.wheregroup.com
> Geschäftsführer:
> Olaf Knopp, Peter Stamm
> Amtsgericht Bonn, HRB 9885
> ---
>
> ___
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>


-- 
Emma Hain — Product Manager/Senior GIS Analyst
e...@north-road.com
[image: https://north-road.com]
*North Road*
Cartography • Development • Spatial Analysis
--
*north-road.com* 



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Re: [Qgis-user] Atlas printing to PDF

[Emma Hain via QGIS-User]

Hi Springfield
I know lack of time is crazy - but the question here is, will I be using
this product over and over again? If that is the case, then I would
recommend rebuilding it from scratch if testing the old one fails.

Here are some possible options to follow to get to the bottom of this. The
first should  take no time.

First, let's start clean and create a new QGIS profile
 in your current QGIS
and open your product and run it. Are the glitches still there? If so, then
it could be your content. If not, then this is an easy fix and you can run
your product.

Test to see if you can get away with dragging in the old project into the
new version and making a few changes. See how it performs and if there are
still glitches, you will need to work out where the glitches are coming
from.

Are they hiding in the template? Test to see if when you bring it in, in a
completely clean environment, add in data you wouldn't normally use and run
it. If there are no glitches here, then is it something in or associated
with your data.

Test the data in a clean environment without the template to see how it
performs.

In regards to the workflow I proposed, you can drag in the data from your
old project with all the trimmings if you access it under the old project
in the Browser window. You can then recreate the Layout using the template.
There are other workarounds too by saving the data as .sld files but as I
am writing this, I am really feeling for you.

I hope this helps, and you can get your product out.

Cheers
Em


On Thu, 7 Mar 2024 at 22:33, Nigel Berjak - General  wrote:

> Hi Spring
>
> I think that, if I am understanding Emma's workflow correctly, you do not
> need to recreate the entire project, only the layout part. If I have
> misunderstood, I would first try loading the same project, then creating a
> new layout from the template, then reincorporating all the various
> settings. If this works, it would save a lot of time.
> ---
> Regards,
>
> Nigel Berjak
> Please consider the environment before printing this email.
>
>
> On 2024-03-07 11:20, Springfield Harrison wrote:
>
> Hello Emma,
>
> Thanks very much for your suggestions.
>
> Pondering your workflow suggestions, are you suggesting that I create a
> new project in a new version of QGIS by dragging the old project into a
> empty project in the new version?  Do I have that right?  The .qpt file is
> a print template?
>
> It sounds workable but time-consuming.  As it is, I'm up half the night
> just trying to get some of this work done.  I may give it a try but am
> leery of investing more time in "run the Atlas and see if it works."
>
> I do appreciate your help and will probably give it a try, all fingers
> crossed.
>
> Thanks again...
>
> 
> Cheers, Spring
>
>
>
>
> On 2024-03-06 15:36, Emma Hain wrote:
>
> Hi Spring
> I am sorry you are experiencing this. I would strongly advise you to move
> up to the latest LTR of QGIS 3.36 when you can.
>
> It sounds like there are some buggy things happening in the background, so
> maybe you need a clean version.
>
> If this was me, I would follow this workflow.
>
>- Open up in the original version and create a .qpt from the print
>layout
>- Create a new product in the latest LTR
>- Locate the old project in the Browser window
>- Expand that project and drag the files into the new product.
>- In the print layout:
>   - load the qpt
>   - Copy over the Atlas parameters from your old product (you can
>   have both versions open at the same time)
>   - Run the atlas and see if it works.
>
> Good luck!
> Cheers
> Em
>
>
> On Sat, 2 Mar 2024 at 21:10, Springfield Harrison via QGIS-User <
> qgis-user@lists.osgeo.org> wrote:
>
> Hi Nigel,
>
> Okay, note that.
>
> However, I cannot get QGIS 3.32.3 to load copies of a couple of my
> projects.  It seemed to hang up while dealing with certain files which I
> then went back to the original 3.16.4 and removed.  Then it would hang
> up on a different file.
>
> In a new project, 3.32.3 will load those files but not from the original
> project.  Is 3.32.3 known to have problems?  It seemed to install all
> right from the Windows .MSI installer.
>
> Update: the program will actually load those files, it just takes up 10
> min. to do so.  And then there are huge delays during the work session.
> The files loaded individually into a new project with no problem.
>
> Once I finally got it working, I was able to try printing the Atlas.  No
> change, it just prints one blank page.  No error messages, just a fail.
>
> Not sure what the answer is, I don't have the time to keep trying new
> versions when they are mostly a disappointment.
>
> Nevertheless, thanks very much for your thoughts...
>
> 
> Cheers, Spring
>
>
>
>
>
>
> On 2024-03-01 00:22, Nigel Berjak wrote:
> > Hi Spring
> >
> > The rasters should not be a problem. If they are not referenced, QGIS
> > will simply 

Re: [Qgis-user] Cannot erase a polygon

[Jose Sanchez via QGIS-User]

Thank you for the feedback. Indeed it was an annotation and I was able to delete it thanks to your help. Jose Sent from Mail for Windows From: DelazJSent: jueves, 7 de marzo de 2024 12:29 a. m.To: Adam Nielsen; Adam Nielsen via QGIS-User; jsanchezo@gmail.comCc: qgis-user@lists.osgeo.orgSubject: Re: [Qgis-user] Cannot erase a polygon Hi,As Gordon pointed out earlier, this looks to me like an annotation display. Please read https://docs.qgis.org/3.34/en/docs/user_manual/map_views/map_view.html#interacting-with-features for deletion.Regards,Harrissou Le 7 mars 2024 03:48:27 GMT+01:00, Adam Nielsen via QGIS-User  a écrit :Thanks for replying. Yes I can zoom in and out of the polygon. I alsoclosed the Project several times and nothing happens.If it is a QGIS bug, it means I better redo the Project? Or is ther aalternative solution?I'm sure there's a way around the problem.  It seems quite unusual.How did you add the polygon initially?  That might shed some light onwhy it's there and how to remove it.You don't have any print layouts or anything active?If you don't have any luck, and the project is not confidential, itcould be useful to share it so we can try it for ourselves.  You cansave a copy of the project for this, and then delete all the layersfrom the copy so the only thing in the project is the polygon.  You mayeven find as you do this the polygon disappears when you delete acertain layer which might give some hints about where it's coming from.Cheers,Adam.QGIS-User mailing listQGIS-User@lists.osgeo.orgList info: https://lists.osgeo.org/mailman/listinfo/qgis-userUnsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___
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Re: [Qgis-user] can't apply mask on labels

[WhereGroup]

Allowing bigger attachments might make our inboxes grow substantially. 
Mailing lists really aren't that useful in my opinion as you receive 
tons of mails when subscribed and lose considerable on ability if you do 
not keep them all, forever.


I really like the idea of a Discourse forum 
https://lists.osgeo.org/pipermail/qgis-user/2024-January/053842.html , 
there it would be no issue if people posted big images or fancy 
formatting as the messages are stored on the server for us and one can 
selectively subscribe via mail or visit with a browser.


All the best, Hannes

On 07.03.24 10:42, Andreas Neumann via QGIS-User wrote:


Hi Richard,

Is there a chance/way to increase the size limit from 200k to let's 
say 1MB. Most Screenshots are  bigger than the 200k and it is really 
cumbersome, having to post images on some other platform in order to 
share it with the mailing list.


Do you know who at OSGeo I'd have to ask about this?

Thanks,

Andreas

On 2024-03-07 10:06, Richard Duivenvoorde via QGIS-User wrote:


Hi People,


FYI: current messages are too big for the mailing list. We have a max of 200KB 
per messages.

We manually let all message through which are larger.

When you answer, a large mail with a lot of images, please do not include the 
full answer mail.

That way the response will even be bigger, and be held by the mail list 
software (until one of the admins releases these mails)...

Thanks,

Richard Duivenvoorde

PS: even better: do not create html mails :-)  Keep your mails clean (text 
only) with optionally some attachments for images...

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--
Johannes Kröger / GIS-Entwickler/-Berater

*
FOSSGIS Konferenz
20.-23. März 2024 in Hamburg
https://www.fossgis-konferenz.de/2024/

WhereGroup-Beiträge auf der FOSSGIS
https://wheregroup.com/unternehmen/aktuelles/
*

WhereGroup GmbH
c/o KK03 GmbH
Lange Reihe 29
20099 Hamburg
Germany

Tel: +49 (0)228 / 90 90 38 - 36
Fax: +49 (0)228 / 90 90 38 - 11

johannes.kroe...@wheregroup.com
www.wheregroup.com
Geschäftsführer:
Olaf Knopp, Peter Stamm
Amtsgericht Bonn, HRB 9885
---
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Re: [Qgis-user] Atlas printing to PDF

[Nigel Berjak - General via QGIS-User]

Hi Spring

I think that, if I am understanding Emma's workflow correctly, you do 
not need to recreate the entire project, only the layout part. If I have 
misunderstood, I would first try loading the same project, then creating 
a new layout from the template, then reincorporating all the various 
settings. If this works, it would save a lot of time.


---
Regards,

Nigel Berjak
Please consider the environment before printing this email.

On 2024-03-07 11:20, Springfield Harrison wrote:


Hello Emma,

Thanks very much for your suggestions.

Pondering your workflow suggestions, are you suggesting that I create a 
new project in a new version of QGIS by dragging the old project into a 
empty project in the new version?  Do I have that right?  The .qpt file 
is a print template?


It sounds workable but time-consuming.  As it is, I'm up half the night 
just trying to get some of this work done.  I may give it a try but am 
leery of investing more time in "run the Atlas and see if it works."


I do appreciate your help and will probably give it a try, all fingers 
crossed.


Thanks again...


Cheers, Spring

On 2024-03-06 15:36, Emma Hain wrote:

Hi Spring
I am sorry you are experiencing this. I would strongly advise you to 
move up to the latest LTR of QGIS 3.36 when you can.


It sounds like there are some buggy things happening in the background, 
so maybe you need a clean version.


If this was me, I would follow this workflow.

* Open up in the original version and create a .qpt from the print 
layout

* Create a new product in the latest LTR

* Locate the old project in the Browser window

* Expand that project and drag the files into the new product.

* In the print layout:

* load the qpt
* Copy over the Atlas parameters from your old product (you can have 
both versions open at the same time)

* Run the atlas and see if it works.

Good luck!
Cheers
Em

On Sat, 2 Mar 2024 at 21:10, Springfield Harrison via QGIS-User 
 wrote: Hi Nigel,


Okay, note that.

However, I cannot get QGIS 3.32.3 to load copies of a couple of my
projects.  It seemed to hang up while dealing with certain files which 
I

then went back to the original 3.16.4 and removed.  Then it would hang
up on a different file.

In a new project, 3.32.3 will load those files but not from the 
original

project.  Is 3.32.3 known to have problems?  It seemed to install all
right from the Windows .MSI installer.

Update: the program will actually load those files, it just takes up 10
min. to do so.  And then there are huge delays during the work session.
The files loaded individually into a new project with no problem.

Once I finally got it working, I was able to try printing the Atlas.  
No

change, it just prints one blank page.  No error messages, just a fail.

Not sure what the answer is, I don't have the time to keep trying new
versions when they are mostly a disappointment.

Nevertheless, thanks very much for your thoughts...


Cheers, Spring

On 2024-03-01 00:22, Nigel Berjak wrote:

Hi Spring

The rasters should not be a problem. If they are not referenced, QGIS
will simply revert to querying you and asking you find their correct
locations. The file sizes should be fairly irrelevant, especially if
they have the pyramids built.

Cheers.

---
Regards,

Nigel Berjak
Please consider the environment before printing this email.

On 2024-03-01 09:57, Springfield Harrison wrote:

Hello Nigel,

Okay, thanks very much, just on the verge of updating now.

Your tip about using a copy of the project file is a good one. Will
certainly do that.

I hope the update will fix the Atlas printing problem but I'm not
holding my breath.  It contains several large map raster files which
may be the problem.

Thanks again...


Cheers, Spring



On 2024-02-29 22:26, Nigel Berjak wrote:

Hi Spring

It may be worthwhile trying this. Even 3.26 final release, as an
interim version. Also, ensure you do not open the original project
file, but rather a copy, in case you save it and cannot return
(possibly) to using it with the older version.

---
Regards,

Nigel Berjak
Please consider the environment before printing this email.

On 2024-03-01 05:16, Springfield Harrison wrote:
OK, thank you.  I'm using 3.16.4, perhaps I should move up to 
3.32.3?



Cheers, Spring



On 2024-02-29 05:15, Nigel Berjak wrote:

Hi

I have had to revert to using an older version (3.32.3) for one of
my projects, where the Atlas sheets bombs the application
(3.34.3). Is this the issue you are having?

---
Regards,

Nigel Berjak
Please consider the environment before printing this email.

On 2024-02-29 13:28, Springfield Harrison via QGIS-User wrote:

Hello,

Printing a PDF Atlas is a total fail - 1 page if I'm lucky,
mostly 1 blank page.  Is there a work around?

Thanks very much.  I'm sorry if this has been already covered,
there seems to be no searchable forum.


Cheers, Spring Harrison


___
QGIS-User 

[Qgis-user] Inquiry Regarding Hardware Requirements for QGIS

[aday8300 via QGIS-User]

Dear Subscribers,

I am interested in obtaining information regarding the minimum and
recommended hardware requirements for the QGIS software, used for spatial
data analysis.

What are the minimum and recommended hardware requirements for QGIS?

What technology does the QGIS program utilize for display and computation?
Is a single-core CPU, multiple cores, or a different setup used?

Is a graphics card used for display and computation? If so, what are the
minimum and recommended requirements?

What type of graphics card is required/recommended: OpenGL (Open Graphics
Library), NVIDIA CUDA (Compute Unified Device Architecture), or RTX (Ray
Tracing eXtensions)?

Kindly provide answers to the above questions or direct me to where I can
find this information.

Thank you in advance for your assistance.

Best regards,

Adam Więcko

FKE Ekoprobono
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Re: [Qgis-user] can't apply mask on labels

[Andreas Neumann via QGIS-User]

Hi Richard,

Is there a chance/way to increase the size limit from 200k to let's say 
1MB. Most Screenshots are  bigger than the 200k and it is really 
cumbersome, having to post images on some other platform in order to 
share it with the mailing list.


Do you know who at OSGeo I'd have to ask about this?

Thanks,

Andreas

On 2024-03-07 10:06, Richard Duivenvoorde via QGIS-User wrote:


Hi People,

FYI: current messages are too big for the mailing list. We have a max 
of 200KB per messages.


We manually let all message through which are larger.

When you answer, a large mail with a lot of images, please do not 
include the full answer mail.


That way the response will even be bigger, and be held by the mail list 
software (until one of the admins releases these mails)...


Thanks,

Richard Duivenvoorde

PS: even better: do not create html mails :-)  Keep your mails clean 
(text only) with optionally some attachments for images...


___
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Re: [Qgis-user] Atlas printing to PDF

[Springfield Harrison via QGIS-User]

Hello Emma,

Thanks very much for your suggestions.

Pondering your workflow suggestions, are you suggesting that I create a 
new project in a new version of QGIS by dragging the old project into a 
empty project in the new version?  Do I have that right?  The .qpt file 
is a print template?


It sounds workable but time-consuming.  As it is, I'm up half the night 
just trying to get some of this work done.  I may give it a try but am 
leery of investing more time in "run the Atlas and see if it works."


I do appreciate your help and will probably give it a try, all fingers 
crossed.


Thanks again…


Cheers, Spring




On 2024-03-06 15:36, Emma Hain wrote:

Hi Spring
I am sorry you are experiencing this. I would strongly advise you to 
move up to the latest LTR of QGIS 3.36 when you can.


It sounds like there are some buggy things happening in the 
background, so maybe you need a clean version.


If this was me, I would follow this workflow.

  * Open up in the original version and create a .qpt from the print
layout
  * Create a new product in the latest LTR
  * Locate the old project in the Browser window
  o Expand that project and drag the files into the new product.
  * In the print layout:
  o load the qpt
  o Copy over the Atlas parameters from your old product (you can
have both versions open at the same time)
  o Run the atlas and see if it works.

Good luck!
Cheers
Em


On Sat, 2 Mar 2024 at 21:10, Springfield Harrison via QGIS-User 
mailto:qgis-user@lists.osgeo.org>> wrote:


Hi Nigel,

Okay, note that.

However, I cannot get QGIS 3.32.3 to load copies of a couple of my
projects.  It seemed to hang up while dealing with certain files
which I
then went back to the original 3.16.4 and removed.  Then it would
hang
up on a different file.

In a new project, 3.32.3 will load those files but not from the
original
project.  Is 3.32.3 known to have problems?  It seemed to install all
right from the Windows .MSI installer.

Update: the program will actually load those files, it just takes
up 10
min. to do so.  And then there are huge delays during the work
session.
The files loaded individually into a new project with no problem.

Once I finally got it working, I was able to try printing the
Atlas.  No
change, it just prints one blank page.  No error messages, just a
fail.

Not sure what the answer is, I don't have the time to keep trying new
versions when they are mostly a disappointment.

Nevertheless, thanks very much for your thoughts…


Cheers, Spring






On 2024-03-01 00:22, Nigel Berjak wrote:
> Hi Spring
>
> The rasters should not be a problem. If they are not referenced,
QGIS
> will simply revert to querying you and asking you find their
correct
> locations. The file sizes should be fairly irrelevant,
especially if
> they have the pyramids built.
>
> Cheers.
>
> ---
> Regards,
>
> Nigel Berjak
> Please consider the environment before printing this email.
>
> On 2024-03-01 09:57, Springfield Harrison wrote:
>> Hello Nigel,
>>
>> Okay, thanks very much, just on the verge of updating now.
>>
>> Your tip about using a copy of the project file is a good one.
Will
>> certainly do that.
>>
>> I hope the update will fix the Atlas printing problem but I'm not
>> holding my breath.  It contains several large map raster files
which
>> may be the problem.
>>
>> Thanks again…
>>
>> 
>> Cheers, Spring
>>
>>
>>
>> On 2024-02-29 22:26, Nigel Berjak wrote:
>>> Hi Spring
>>>
>>> It may be worthwhile trying this. Even 3.26 final release, as an
>>> interim version. Also, ensure you do not open the original
project
>>> file, but rather a copy, in case you save it and cannot return
>>> (possibly) to using it with the older version.
>>>
>>> ---
>>> Regards,
>>>
>>> Nigel Berjak
>>> Please consider the environment before printing this email.
>>>
>>> On 2024-03-01 05:16, Springfield Harrison wrote:
 OK, thank you.  I'm using 3.16.4, perhaps I should move up to
3.32.3?

 
 Cheers, Spring



 On 2024-02-29 05:15, Nigel Berjak wrote:
> Hi
>
> I have had to revert to using an older version (3.32.3) for
one of
> my projects, where the Atlas sheets bombs the application
> (3.34.3). Is this the issue you are having?
>
> ---
> Regards,
>
> Nigel Berjak
> Please consider the environment before printing this email.
>
> On 2024-02-29 13:28, Springfield Harrison via QGIS-User wrote:
>> Hello,
>>
>> Printing a PDF Atlas is a total fail - 1 page if 

Re: [Qgis-user] can't apply mask on labels

[Richard Duivenvoorde via QGIS-User]

Hi People,


FYI: current messages are too big for the mailing list. We have a max of 200KB 
per messages.

We manually let all message through which are larger.

When you answer, a large mail with a lot of images, please do not include the 
full answer mail.

That way the response will even be bigger, and be held by the mail list 
software (until one of the admins releases these mails)...

Thanks,

Richard Duivenvoorde

PS: even better: do not create html mails :-)  Keep your mails clean (text 
only) with optionally some attachments for images...

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Re: [Qgis-user] can't apply mask on labels

[Andreas Neumann via QGIS-User]

 Hi all,

The mask is more flexible and cartographically more pleasing if you don't
have a homogenous single-color background on your map. The mask is the only
way to get rid of darker colors while keeping light background colors.

See f.e. this example here:

https://s.geo.admin.ch/bb5itd6k85y7

Have a look at the large labels "Pfaffhausen", "Benglen", "Schwerzenbach"
and "Fällanden". Darker colors from roads (black) and rivers (blue) are
masked, but lighter colors from forests, lakes and hillshading are
preserved. The mask is the only way to achieve this "selective" effect of
masking.

All other options like background rectangles or buffers have a fixed color
and only work on a homogeneous background. They wouldn't be able to achieve
the effect of the example above.

I hope this clarifies the difference in the approaches?

The only major problems with the masks are the following limitations
(hopefully they can be removed in the future):
- they cannot be used within the same layer (you need to duplicate layers
if you want to mask features with labels from the same layer)
- they don't yet work on vector tiles, because vector tiles aren't real
QGIS vector layers with all the symbology options. They only have a limited
set of symbology so far

Greetings,
Andreas
--
Andreas Neumann
QGIS.ORG board member (treasurer)
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