[Qgis-user] Real Mask functionality in QGIS?

Tobias Wendorff tobias.wendorff at tu-dortmund.de
Thu Mar 9 02:07:14 PST 2017


Sorry for FQ

In ArcGIS you can limit processing by mask, extent and query.

-- 
Von einem iPhone gesendet und wird daher Fehler enthalten…

Am 09.03.2017 um 11:03 schrieb "Bernd Vogelgesang" <bernd.vogelgesang at gmx.de>:

> 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
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