Re: [Matplotlib-users] colorbar with 2 different scales

[Eric F. <ef...@ha...>]

P.Romero wrote:
> Is it possible to create a colorbar with different scales on each side?
> 
>  
> 
> Example:
> 
>  a temperature colorbar with celcius values on the left side and 
> farenheit values on the right side.
> 
>  
> 
> If so, how could this be done?

A colorbar is just an axes object with some customization of the ticks 
and labels, and with a pcolor plot inside.  You could get your second 
scale using a technique similar to the twinx and twiny Axes methods; you 
can then use set_xlim or set_ylim so that the Fahrenheit range on the 
new axes matches the Celcius range on the old one.

To get started, look at the source for the twinx/twiny methods.

Eric

> 
>  
> 
> Please help,
> 
> Thanks,
> 
> P.Romero
> 
> 
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