[scribus] Differentiating colors for a map

John Culleton john at wexfordpress.com
Mon Sep 27 15:52:51 CEST 2010

On Monday 27 September 2010 04:06:01 JLuc wrote:
> Hello,
> this is not a scribus question but a "visual impact" one
> & i hope to get some qualified answers on this list.
> I am looking for the best continuous colour set for a map,
> so that each point in the map has a different color
> and coulour is evenly mapped.
> That is : no colour should appear to use more place than other,
> and no colour should appear to use less place than other.
> The aim is to be as exact as possible when trying to find a place
> on the map, having only its colour place :
> the best map will be the most differentiating (discriminating).
> As far as now, i use a continuous chromatic circle as a starting
> point you can find it here
> http://passerelleco.info/IMG/disque_chromatique.jpg I stretch it so
> as to fit the whole map.
> It is not too bad however not as good as I wish now since :
> - there seem to be some whitish areas
> - colors are not evenly set :
> -* too much pink, too much light blue and light green
> 	leading to a large not differentiating areas
> -* not enough yellow, orange and red, no dark green
> 	leading to a loss of discrimination abilities
> There might be an ideal mathematical known solution for this
> request, or maybe the eye's reality is not mathematical and follow
> its own rules, but then there are empirical solutions.
> Could anybody share his views on this question ?
> Are there known background images that fit this need ?
> Thanks for your expertise,
> JLuc
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A little known but apparently true fact. Any map can be designed using 
only four colors.  
John Culleton
Wexford Press
"Create Book Covers with Scribus"
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