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

Thu Mar 7 06:46:32 PST 2024

Hi Andreas and Sebastian,

I duplicated my layer as suggested by Andreas and it worked!  Thanks a lot. Unfortunetly, i did not have any success getting it to refresh with just one layer but I still manage to do what I wanted so thanks a lot.

Émilie

De : Sebastian Gutwein <bas at rdgland.com>
Envoyé : 7 mars 2024 09:01
À : Andreas Neumann <andreas at qgis.org>
Cc : Émilie Berthiaume <eberthiaume at csfoy.ca>; qgis-user at lists.osgeo.org
Objet : Re: [Qgis-user] can't apply mask on labels

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Andreas,
I think it can mask itself but you need to get it to refresh which takes toggling the mask on another layer (or something- I haven't actually pinned down when it refreshes)
In my attached screenshot you can see that there is only one layer and the mask is applied and working on itself but it hasn't yet realized that I removed the copy of the lyer I used to trigger the refresh.
[cid:image001.png at 01DA7074.554FEEB0]

On Wed, Mar 6, 2024 at 3:29 PM Andreas Neumann via QGIS-User <qgis-user at lists.osgeo.org<mailto:qgis-user at lists.osgeo.org>> wrote:
Hi Emilie,

I believe that currently a limitation that a layer cannot mask itself.

For this to work, you'd have to duplicate the layer - once for the lines and once for the labels - then the mask should work. On the label layer you can disable the drawing of the lines and of course on the line layer you only apply the mask from the other layer, but don't enable any labels.

Not sure if - or how soon this limitation can be fixed.

Hope this helps,
Andreas

On Wed, 6 Mar 2024 at 21:00, Émilie Berthiaume via QGIS-User <qgis-user at lists.osgeo.org<mailto:qgis-user at lists.osgeo.org>> wrote:
Hi,

I’m trying to apply a mask on the labels of my contour lines layer in a topographic map project.  I have activated the mask in the labels tab :

[cid:image002.png at 01DA7074.554FEEB0]

And then I activated the symbol I wanted to hide in the mask tab :

[cid:image003.png at 01DA7074.554FEEB0]

But it doesn’t seem to work.  There is still a line underneath my labels :

[cid:image004.png at 01DA7074.554FEEB0]

Can anyone tell me what I am doing wrong?  Thank you,

Émilie Berthiaume
Enseignante
Département de biologie et Techniques de bioécologie
[cid:image005.jpg at 01DA7074.554FEEB0]

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