Although QGIS has no convenient mask utility, the underlying logic (that ArcGIS uses too) is of course standard geo-processing: Create the mask geometry, use it as an overlay to "cut away" the masked areas from your layers-to-be-processed and then do you processes on those geometries...
-- Barend Köbben Senior Lecturer – ITC-University of Twente PO Box 217, 7500 AE Enschede (Netherlands) ITC Building (room 1-065) @barendkobben +31-(0)53 4874 253 On 09/03/17 11:07, "Qgis-user on behalf of Tobias Wendorff" <[email protected] on behalf of [email protected]> wrote: 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" <[email protected]>: Am 09.03.2017, 08:28 Uhr, schrieb Neumann, Andreas <[email protected]>: 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 <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 <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 <http://Nabble.com>. _______________________________________________ Qgis-user mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user -- Bernd Vogelgesang Siedlerstraße 2 91083 Baiersdorf/Igelsdorf Tel: 09133-825374 _______________________________________________ Qgis-user mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user _______________________________________________ Qgis-user mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
