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 <[email protected]> wrote: From: Paolo Cavallini <[email protected]> Subject: Re: [Qgis-developer] color ramps improvements To: "Etienne Tourigny" <[email protected]> Cc: "qgis-developer" <[email protected]> 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 [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
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