[udig-devel] A unique colour for each Feature

Andrea Antonello andrea.antonello at gmail.com
Wed Feb 7 11:15:26 PST 2007


Jody, you are right :)
(and thanks Paul to give a support in this)

I asked because that was the first thing a guy used to use Arcview,
Geomedia and Microstation (he knows what he is doing usually) asked me
when I showed him udig.
Since I sometimes wonder of particular requests because I develop and
use too less, I wanted to know if someone misses the feature :)
I'm sure people are just afraid to say it, but they all like that
almost-nothing-stating map ;)

Cheers,
Andrea



Jody Garnett wrote:
> As you can see Andrea - we are in the realm of art and communication :-)
> 
> You are correct Paul (and yes I looked at the map).
> - pale colours used
> - colours assigned spatially so that no two regions that touch have the
> same colour
> - border is thickened up with a bolder version of the same colour (to
> make differences apparent)
> 
> I recall reading about this cartographic problem somewhere - it was an
> exercise in graph theory.
> Fun stuff, but now back to work.
> Jody
> 
>> Tut, tut, Mr Garnett, "effectively" is in the eye of the beholder.
>> Check out the national geographic map at the front of the office, for
>> an example of what Andrea is requesting. It is a not-uncommon
>> cartographic trope, and if done subtly, not uneffective.
>>
>> P
>>
>> Jody Garnett wrote:
>>>  If your point is that all the parishes are *different* then you can
>>> do that
>>> more effectively by coloring them the same and using a thicker
>>> contrasted border (border emphasis the difference rather then the
>>> color changes - an easy example is that somewhere on your map of
>>> Italy two parishes will end up with colours so close that
>>> the eye will not be able to notice the difference and this they will
>>> be joined visually).
>>
>>
> 
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-- 
____________________________________________________________________________
HydroloGIS - Environmental Safety Modelling
www.hydrologis.com

Andrea Antonello
Environmental Engineer
mobile:  +393288497722

"Let it be as much a great honour to take as to give learning,
if you want to be called wise."
Skuggsja' - The King's mirror - 1240 Reykjavik
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