Hi all, just chiming in to express our need for this improvement as well, and we would very welcome any improvement in this direction.
Vincent. On Wed, Jan 11, 2017 at 12:37 PM, Stéphane Henriod <[email protected]> wrote: > One last message for today (sorry for spamming!) > > It seems that this feature would actually be wished by "many" people (see > the ticket and the talks on user-). I just gave a try to 2.99-nightly and, > as far as I can see, nothing has been done in this direction (yet?). > > I am wondering if there are massive challenges that I am overlooking or if > this could be implemented quite easily. In any case, do you think this is a > request that can be taken on to 3.0? > > Thanks a lot to all the devs here... I feel quite bad for asking for a new > feature while not having the competences to contribute a tiny bit to its > development but I really feel this is one of the few major missing features > in QGIS right now (and will be happy to help on the feature requirements, > the tests, etc.). > > All the best! > > Stéphane > > > Le mercredi 11 janvier 2017, Stéphane Henriod <[email protected]> a > écrit : > >> Hi again >> >> it seems that the requirements are related (although not 100% similar) to >> this other open (and assigned) ticket: http://hub.qgis.org/issues/14449 >> >> I really hope to see this very needed feature in a coming version of QGIS >> and happy to help wherever I can! >> >> Cheers >> >> Stéphane >> >> >> Le mardi 10 janvier 2017, Stéphane Henriod <[email protected]> a >> écrit : >> >>> Hi >>> >>> let me move here a request that has been shortly discussed on the >>> user-mailing list: >>> http://lists.osgeo.org/pipermail/qgis-user/2017-January/038793.html >>> http://lists.osgeo.org/pipermail/qgis-user/2017-January/038795.html >>> http://lists.osgeo.org/pipermail/qgis-user/2017-January/038801.html >>> >>> and for which a ticket is open: >>> http://hub.qgis.org/issues/14845 >>> >>> I was said that some work has been done in this direction for 3.0 but I >>> don't know if it completely covers the feature request >>> >>> ---------------------- >>> >>> When styling a discrete or boolean raster, there seems to be no direct >>> method, only a few workarounds. The feature I dream of would do the >>> following: >>> >>> - A new render type "Discrete raster" >>> - One button allows to fetch all unique values form the raster (with >>> a warning message if there are more than XXX unique values) >>> - A color ramp is applied by default >>> - I can multi-select values and apply them the same style and / or >>> the same label >>> - I can remove values. The pixels with those values will simply not >>> be displayed >>> - I can save my color map and load an existing color map >>> >>> So pretty much like the ArcGIS implementation: >>> http://resources.arcgis.com/en/help/main/10.1/index.html#/re >>> presenting_unique_categories_such_as_land_use/009t00000074000000/ >>> >>> The current limitations I see (in 2.14): >>> >>> - The discrete values must be entered manually, which is a pain for >>> a raster with many unique values (or if I don't know in advance what all >>> values are) >>> - If I click on *Classify*, QGIS will choose X values (based on the >>> number of classes and the classification method (continuous or equal >>> interval)), which no longer match the "exact" values of my raster. It >>> doesn't really make sense to classify a discrete rendering >>> - Although it is currently possible to style discrete rasters, the >>> procedure is not really intuitive for beginners >>> >>> ---------------------- >>> >>> Is this a feature that is envisioned for 3.0? Is there anything I can do >>> to support it? (except coding it myself, since I don't have the skills for >>> that...) >>> >>> Thanks a lot in advance >>> >>> Cheers >>> >>> Stéphane >>> >>> >> >> -- >> >> “When you travel, remember that a foreign country is not designed to make >> you comfortable. It is designed to make its own people comfortable." -- >> Clifton Fadiman >> >> > > -- > > “When you travel, remember that a foreign country is not designed to make > you comfortable. It is designed to make its own people comfortable." -- > Clifton Fadiman > > > _______________________________________________ > Qgis-developer mailing list > [email protected] > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer >
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