[yt-users] colorbar labels

Desika Narayanan dnarayan at haverford.edu
Tue Nov 18 15:38:51 PST 2014


Hi Aaron and Nathan,

This worked great - thanks a lot!
-desika

On Tue, Nov 18, 2014 at 4:18 PM, Aaron Smith <asmith at astro.as.utexas.edu>
wrote:

>  Hi Desika,
>
> I'll just add one thing. If you want to know the min and max values of the
> colorbar you can access the matplotlib values with:
>
> temp_plot = slc.plots['temperature']
> print '(vmin, vmax) =', (temp_plot.cb.norm.vmin, temp_plot.cb.norm.vmax)
>
> Cheers,
> Aaron
>
>
>
> On 11/18/14, 3:01 PM, Nathan Goldbaum wrote:
>
> Hi Desika
>
> By default, slices of the temperature field are log-scaled.  It looks like
> there is less than one order of magnitude in temperature variation, so no
> colorbar tick labels are showing up.
>
>  You will likely have better results if you switch to linear colorbar
> scaling:
>
>  slc.set_log('temperature', False)
>
>  If you switch to the latest dev version (what will be the upcoming yt
> 3.1 release) you should have minor tick marks on your plot.
>
>  Here's an example I just whipped up:
>
>  http://nbviewer.ipython.org/gist/ngoldbaum/f3424a7307baeb050c61
>
>  HTH,
>
>  Nathan
>
>
>
>
> On Tue Nov 18 2014 at 12:42:37 PM Desika Narayanan <dnarayan at haverford.edu>
> wrote:
>
>> Hi All,
>>
>>  I have a slice plot that I make with the simple:
>>
>>  slc = SlicePlot(pf,'z',('gas','temperature'))
>> slc.zoom(5)
>> slc.save('junk2.png')
>>
>>  and produces this (it's super ugly but not the point :) ):
>> http://i.imgur.com/j9H4imp.png
>>
>>  I can't figure out how to get the colorbar to reveal the numbers that
>> the colors correspond to.  Is there an obvious solution?
>>
>>  thanks
>> -d
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>>
>
>
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