[Qgis-user] Labelling in QGIS 3

[Paul Wittle]

Hi Bernd,

That is great as I can now see where the Key information is stored. You can delete the auxiliary storage to get the prompt for the primary key back but of course this needs doing before you do much work or you will lose the work you did.

I can see that I could probably use that to develop a plugin option that will allow the users to create a single label. I would achieve it by auto creating the auxiliary storage; populating the primary key and then hiding all features before enabling labels. This would mean you can then use the abc(eye) tool to add a single label but it would also mean that every single record would need to be in the auxiliary storage.

I guess the question remains and to whether it can / should be possible via any of the default functionality?

Thanks,
Paul


From: Bernd Vogelgesang <bernd.vogelgesang at gmx.de>
Sent: 19 November 2020 14:55
To: Paul Wittle <P.Wittle at dorsetcc.gov.uk>; qgis-user at lists.osgeo.org
Subject: Re: [Qgis-user] Labelling in QGIS 3


Hi,

maybe this article will give some clues: https://oslandia.com/en/2017/10/17/auxiliary-storage-support-in-qgis-3/

Cheers,

Bernd
On 19.11.20 15:38, Paul Wittle wrote:

Hi,



Is there a way to turn on labelling without actually displaying any labels?



I would like to have a layer where there are no labels but if you use the abc(eye) button I can add remove individual labels as required. At present the best I can find is to label everything then individually hide the labels I don’t want.



I was also wondering whether the UI actually shows the unique key setting anywhere? I accidentally set that the option wrong on one occasion when it popped up to ask the first time but then struggled to find where the option is stored; it only asks the first time. I ended up just removing the layer from the map then adding it back to achieve the result.



Of course the layer I’m using actually has a primary key defined in the metadata so perhaps I would ask why it doesn’t just use the primary key when one exists?



Anyway; a few questions there but generally the tools are pretty good 😊 If anyone is able to point me in the right direction on the labelling individual records that would be great though.



Thanks,

Paul





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