Re: [Matplotlib-users] how to make a colorbar starting with a different color?

[Benjamin R. <ben...@ou...>]

There is the "set_over" and "set_under" members of a colormap, and the
plt.colorbar() function takes an "extend='min'" argument to add an extra
color at the beginning of the colorbar. Setting "extendrect=True", the
added color will be rectangular instead of triangular.

Hopefully that helps.

Cheers,
Ben Root



On Tue, Jul 2, 2013 at 6:14 AM, Chao YUE <cha...@gm...> wrote:

> One way I could think of is to make two contingent mat.axes.Axes,
> with a smaller one setting as white backgroud, and the other bigger on
> holding the colorbar. Is there some better way?
>
> Chao
>
>
> On Tue, Jul 2, 2013 at 12:12 PM, Chao YUE <cha...@gm...> wrote:
>
>> Dear all,
>>
>> Does anyone have similar experience that to make a colorbar
>> starting from a different color in the colormap? for example, to
>> denote the region with invalid data. I attahced a figure to show
>> what I would like to have, the withe region in the colorbar in the
>> attahced figure shows no data.
>>
>> thanks a lot for any help,
>>
>> best,
>>
>> Chao
>>
>> --
>>
>> ***********************************************************************************
>> Chao YUE
>> Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL)
>> UMR 1572 CEA-CNRS-UVSQ
>> Batiment 712 - Pe 119
>> 91191 GIF Sur YVETTE Cedex
>> Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16
>>
>> ************************************************************************************
>>
>
>
>
> --
>
> ***********************************************************************************
> Chao YUE
> Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL)
> UMR 1572 CEA-CNRS-UVSQ
> Batiment 712 - Pe 119
> 91191 GIF Sur YVETTE Cedex
> Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16
>
> ************************************************************************************
>
>
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