[Qgis-user] Real Mask functionality in QGIS?

[Bernd Vogelgesang]

Am 09.03.2017, 08:28 Uhr, schrieb Neumann, Andreas <a.neumann at carto.net>:

>
> Hi Hilpers,
>
> Is this about label and symbol backgrounds?
>
> We have a QEP about that (see  
> https://github.com/qgis/QGIS-Enhancement-Proposals/issues/63) and an  
> offer from Oslandia.
>
> Can you please review this QEP and let us know if it matches your needs?
>
> If yes - would you be able to contribute financially? It is quite  
> complex to implement this and I have to collect around 18k € to finance  
> >it. So I would be interested in financial contributions.
>
> Thank you for your reply,
>
> Andreas
>
>

Hi Andreas,
as I understood the feature request, he means a "real" mask that is not  
only masking the display, but all features outside of the mask for any  
geoprocessing.
I faintly rember this from ArcGIS which I didn't use for ages, so I have  
no idea how well this is working how its done technically.

But the idea, that when working with numerous layers of different extent,  
not to have to crop them them each individually to fit into a window of  
interest, but just to assign a mask layer/bbox to them, sounds very good  
to me.

Cheers
Bernd




>
> On 2017-03-08 21:08, hilpers wrote:
>> Hello everyone,
>>
>> I regularly face the issue that I want to set masks for layers of my  
>> choice
>> based on one layer´s geometry.
>> I know there is a plugin available which handles labels *but not* the
>> geometry of layers to be masked.
>>
>> In my oppinion a mask should make geometries / raster cells outside the
>> specified mask disappear. The user should also be able to exclude layers
>> from being masked. After searching for more than a year, I want to ask  
>> how
>> you handle this pretty common scenario. Furthermore, four years after  
>> the
>> last discussion about masks here on QGIS Nabble I also want to ask,  
>> whether
>> developers are planning to incorporate this feature in V3.
>> It would be great to have that masking capability option within the  
>> layer
>> options or even the projects settings.
>>
>> Thanks
>>
>>
>> --
>> View this message in context:  
>> http://osgeo-org.1560.x6.nabble.com/Real-Mask-functionality-in-QGIS-tp5311464.html
>> Sent from the QGIS - User mailing list archive at Nabble.com.
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>



-- 
Bernd Vogelgesang
Siedlerstraße 2
91083 Baiersdorf/Igelsdorf
Tel: 09133-825374
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