matplotlib-users

[Matplotlib-users] colorbrewer colormaps

[Vidar G. <vid...@37...>]

i would like to add colorbrewer colormaps to matplotlib,
at least for my personal use, but i would like to do this
properly so that this can be used by others.

ColorBrewer:
http://www.personal.psu.edu/faculty/c/a/cab38/ColorBrewerBeta2.html

any hints on where to start? start with the cm.py module?
extend cm.py or create a stand-alone one?

the ColorBrewer palettes could be addressed by something
like one of the following, i guess?:

   cmap=cm.colorbrewer.PuBuGn
   cmap=colorbrewer.PuBuGn

the colorbrewer palettes are specified by 3 to 9 rgb colors,
each interpolated differently, how many of these points would
be preferred in a matplotlib module?

...or even all of them, assuming 5seq as a default
(when using the above):

   cmap=cm.colorbrewer.PuBuGn.3seq
   cmap=cm.colorbrewer.PuBuGn.9seq

Re: [Matplotlib-users] colorbrewer colormaps

[Jeff W. <js...@fa...>]

Vidar Gundersen wrote:

>i would like to add colorbrewer colormaps to matplotlib,
>at least for my personal use, but i would like to do this
>properly so that this can be used by others.
>
>ColorBrewer:
>http://www.personal.psu.edu/faculty/c/a/cab38/ColorBrewerBeta2.html
>
>any hints on where to start? start with the cm.py module?
>extend cm.py or create a stand-alone one?
>
>the ColorBrewer palettes could be addressed by something
>like one of the following, i guess?:
>
>   cmap=cm.colorbrewer.PuBuGn
>   cmap=colorbrewer.PuBuGn
>
>the colorbrewer palettes are specified by 3 to 9 rgb colors,
>each interpolated differently, how many of these points would
>be preferred in a matplotlib module?
>
>...or even all of them, assuming 5seq as a default
>(when using the above):
>
>   cmap=cm.colorbrewer.PuBuGn.3seq
>   cmap=cm.colorbrewer.PuBuGn.9seq
>
>  
>

Jim Boyle posted a nice example that shows how to do this a while back.

http://sourceforge.net/mailarchive/message.php?msg_id=11255878


-Jeff

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