dhis2-users team mailing list archive

[Knut Staring <knutst@xxxxxxxxx>]

http://colorbrewer2.org/


On Thu, Feb 20, 2014 at 4:42 PM, Jan Henrik Øverland <
janhenrik.overland@xxxxxxxxx> wrote:

> Others will have to comment on this, but what we should do anyway is to
> add more colours to the palette to allow for a combination of the two -
> fixed class breaks (predefined legend set) and that nice colour/value
> gradation Bob mentioned.
>
>
> On Thu, Feb 20, 2014 at 4:27 PM, Bob Jolliffe <bobjolliffe@xxxxxxxxx>wrote:
>
>> Hi
>>
>> I am no expert here, but I was talking last week with someone who had
>> just been on a GIS course.  She made the interesting observation that when
>> you are displaying numerical data as shaded regions on a map, you should
>> not mix primary colours in the same gradated scale because what you end up
>> with is sort of rubic cube kaleidoscope of colour rather than a clear
>> gradation of values.
>>
>> If that is good advice then I think our demo site could be improved as
>> presently it seems like a good example of bad practice, where we have mixed
>> red, green and blue with joyful and cheerful abandon :-)
>>
>> I had a go to change the Diarrhoea map on the dashboard at
>> http://apps.dhis2.org/dev/dhis-web-dashboard-integration/index.action and
>> I think it is true that it conveys the data better than the extreme
>> multi-coloured ones around it.  Even if the distribution of data between
>> bands is not so interesting.  Anyone agree or disagree? (the data will only
>> be there for a short while longer)
>>
>> If there is a best practice to be had here regarding colour selection I
>> guess we should promote it, particularly with default offerings so that
>> people have to be quite deliberate in order to go astray.
>>
>> Bob
>>
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>
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-- 
Knut Staring
Dept. of Informatics, University of Oslo
+4791880522
http://dhis2.org