[Qgis-developer] Colour chooser and basic colours

Tim Sutton tim at linfiniti.com
Wed Jun 4 12:19:01 EDT 2008

Hi Sidonie

Those colours you refer to are obtained from the windows system. If
you run QGIS under mac os x you do not have such a 'base colours'
pallette at all. There are other areas where we used developer defined
colours such as the 'pseudocolor' renderer for grayscale rasters an
ramped colours for 'continuous color' vector symbolisation. In the
case of seudocolor render for raster, my choice of pallette was
determined by the desire to have a representation that was useful for
illustrating probability distribution maps for species. Marco
Hugentobler can probably comment on the colour choices for vector

One final thing to add is that in QGIS 2.0 one of the things I would
like to do is support popular open mapping pallettes such as:



Hope that at least partially answers your question...



2008/6/4 Sidonie Christophe <Sidonie.christophe at ign.fr>:
> Good afternoon,
> I'm sorry if I write on the wrong place, but my question is for the QGis
> developers and particurlarly ones who implemented the colour chooser.
> I'm a PhD Student and I'm working on the conception of efficient legends.
> I'm doing a state of art on the current tools to manage colours during the
> legend design process. I'm wondering how you conceived the colour chooser
> and specifically what you call "Basic colours" on the left of the interface:
> we can find here some kinds of colours schemes. Is it possible to know which
> rules did you choose to propose these schemes and not others? My question is
> not a technical one, I'm just interested by the motivation and the process
> to propose these colours schemes.
> Let me know if I don't ask in the right place.
> Thanksfully,
> Sidonie
> -----------------------------------------------------------------------
> IGN – Research Service – COGIT Lab
> France
> Sidonie.christophe at ign.fr
> http://recherche.ign.fr/labos/cogit/english/cv.php?prenom=Sidonie&nom=Christophe
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Tim Sutton
QGIS Project Steering Committee Member - Release Manager
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