Hi, perhaps you didn't catch the previous discussion on this list (subject "Raster colours"), or you didn't read this thread closely. Admittedly the subject of this thread does not mention cpt-city, but...
This is EXACTLY about using the cpt-city files (although their svg variant) to make color ramps. Tomorrow this should be in the linux and windows developpment builds, if you want to check it out - it is in qgis master git. Etienne On Fri, Aug 3, 2012 at 4:29 PM, <pcr...@pcreso.com> wrote: > How about the ability to import/read/use cpt files from CPT city? > > http://soliton.vm.bytemark.co.uk/pub/cpt-city/ > > There is a huge number of cartographic (& other) colour ramps/palettes for > users to tap into from many authors & packages. > > Providing an easy way for QGIS users to make use of these would be a > valuable asset. > > Cheers, > > Brent Wood > > > --- On *Sat, 8/4/12, Paolo Cavallini <cavall...@faunalia.it>* wrote: > > > From: Paolo Cavallini <cavall...@faunalia.it> > Subject: Re: [Qgis-developer] color ramps improvements > To: "Etienne Tourigny" <etourigny....@gmail.com> > Cc: "qgis-developer" <qgis-developer@lists.osgeo.org> > Date: Saturday, August 4, 2012, 3:16 AM > > Il 03/08/2012 16:52, Etienne Tourigny ha scritto: > > is there an existing infrastructure for this in qgis/qt to do the > following? > > > > 1) download the file > > 2) unzip - I have added the GDAL funcitons to read zips, but not sure > > if it's easy to unzip a file. > quite the same as for plugins: I guess having the same widgets for > installing plugins, styles, and ramps would be a great plus, both for > users and for developers. > > where would you get the metadata from? There is metadata for author, > > group, but not for each gradient. Do you mean the gradient name? > yes, name is often descriptive enough - when not, we can probably add tags? > > Someone would have to step in, select a few and propose them. These > > would be part of the symbols available by default. > ok, let's start: > - at least one DEM > - one batymetry > - a red, a green,and a blue scale > - one "semaphore" (green to red through yellow) > - two other diverging > - more? > Maybe we could make a poll? I'm sure specific sectors have their > requirements. > > NB: palettes with transparency are not previewed in a meaningful way. > > > > I think that this will be easier once Arun's work on symbology > > grouping and "social styles" is merged. > agreed - see my other thread on GSoC, who was triggered by this issue. > > Are you talking about clutter in the style manager or the cpt-city > > dialog? > in the style manager: we have now a long list of gradients, and the New > ramp entry could be easily overlooked. > > If the latter - In this case you have about 3-4 groups which are > > duplicated, out of more than 100, so I don't see how it adds to > > clutter. I thought about removing the ColorBrewer option(as they are > > available in cpt-city), but it is still relevant because there are > > fewer options to choose from and it is simpler (and nicer) to work with. > I think adding only the default ones (see above), and letting the users > build the others, should be ok. > > This topic is more related to how the gradient is applied to the > > raster/vector, so this sort of lies outside of the cpt-city dialog (I > > think) - unless those classification methods are tied to specific > > gradients? > some of them yes. some gradients should be applied on absolute numbers, > not relatively (e.g. slopes, DEM). > > > > Another functionality from 1-band plugin that is missing is the > > possibility to invert colors and palette. This would be very useful, > > but should it be inside the style manager or in the vector/raster > > layer dialogs? > IMHO, in the layer dialog. > >> - the raster layer property dialog should be made more clear, and more > >> homogeneous with that of vectors. > > I agree - perhaps you can submit a mock-up? > perhaps someone with better designing skills is more suitable. > IMHO the default interpolation should be linear, not discrete. > >> One more: I think the default listing should be by theme, not by author. > > hmm do you mean the selection view? Because aside from that there is > > no "theme" grouping yet. > I mean in the cpt-city color ramp dialog (View is by default switched to > All by author, should be Selections by theme?) > All the best. > > -- > Paolo Cavallini - Faunalia > www.faunalia.eu > Full contact details at www.faunalia.eu/pc > Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario > > _______________________________________________ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org<http://mc/compose?to=Qgis-developer@lists.osgeo.org> > http://lists.osgeo.org/mailman/listinfo/qgis-developer > > > _______________________________________________ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-developer > >
_______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
