On Fri, Dec 13, 2013 at 9:55 AM, Paolo Cavallini <[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi all. > The default for raster rendering is to cut values at 2-98%. This is > inappropriate in many cases, and confusing for users. Is that OK if I > change the default to min/max?
Min/max is inappropriate in many other cases. It is quite common to get data with few outliers. The result in such cases with min/max is black rectangle which is very frustrating and that was the case with 1.8. I believe that it is better to get inappropriately rendered picture than black rectangle. I understand however that it may be problem that user does not notice that the cut was applied. If we find 2-98% as bad as bad min/max we should invent something better, not just switch from one bad solution to another one. We can discuss for example the range (2-98%,1-99%,0.1-99.9%...) and different situations (data types, number of bands). Can you describe some examples where 2-98% is a problem (data type, number of bands, map content, features/phenomena represented by those 2+2%,...) so that we can think about it better? Radim > All the best. > - -- > Paolo Cavallini - www.faunalia.eu > QGIS & PostGIS courses: http://www.faunalia.eu/training.html > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.15 (GNU/Linux) > Comment: Using GnuPG with Icedove - http://www.enigmail.net/ > > iEYEARECAAYFAlKqy3gACgkQ/NedwLUzIr6zmACfXL/qTHouaIHDyTxZP6CPMxVS > B10An2qhIuojWaPsCXnJmhb7stUbvQ6c > =I+Xp > -----END PGP SIGNATURE----- > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
