[yt-users] volume rendering colorbar issue

[Nathan Goldbaum]

You can get a nice LaTeX rendering of the units for any YTarray or
YTQuantity like so:

In [9]: from yt.units import g,cm

In [10]: g/cm**3
Out[10]: 1.0 g/cm**3

In [11]: type(g/cm**3)
Out[11]: yt.units.yt_array.YTQuantity

In [12]: (g/cm**3).units.latex_representation()
Out[12]: '\\frac{\\rm{g}}{\\rm{cm}^{3}}'

I'm not sure where in the code the colorbar unit is getting generated, but
right now it's displaying str(unit) instead of
str(unit.latex_representation()).

Hope that helps,

Nathan

On Wed, Aug 12, 2015 at 12:05 AM, Stephanie Tonnesen <stonnes at gmail.com>
wrote:

> Dear Michael,
>
> That did the trick!  Thanks very much!  Since that worked so well, is
> there a way I can get the density units to look a bit nicer (actually have
> the "3" superscript instead of "cm**3"?)  Thanks again,
>
> Stephanie
>
> --
> Dr. Stephanie Tonnesen
> Alvin E. Nashman Postdoctoral Fellow
> Carnegie Observatories, Pasadena, CA
> stonnes at gmail.com
>
> On Tue, Aug 11, 2015 at 2:06 PM, Cameron Hummels <chummels at gmail.com>
> wrote:
>
>> I don't believe Stephanie is using the new VR interface for this problem.
>>
>> On Tue, Aug 11, 2015 at 2:04 PM, Michael Zingale <
>> michael.zingale at stonybrook.edu> wrote:
>>
>>> A while back I added a label_fmt argument to save_annotated:
>>>
>>>         label_fmt : str, optional
>>>
>>>            A format specifier (e.g., label_fmt="%.2g") to use in
>>> formatting
>>>            the data values that label the transfer function colorbar.
>>>
>>> this fixed the values for me so they look reasonable.
>>>
>>> Note: I don't think any of this has made it over to the new VR interface.
>>>
>>> On Tue, Aug 11, 2015 at 2:42 PM, Stephanie Tonnesen <stonnes at gmail.com>
>>> wrote:
>>>
>>>> Hi yt-users,
>>>>
>>>> My last attempt was too big to make it to the user list, so I will try
>>>> again!
>>>> I am trying to make a volume rendering using
>>>> ---
>>>> Version = 3.2-dev
>>>> Changeset = dc2467c4eae7 (yt) tip
>>>> ---
>>>> and basically following this example:
>>>>
>>>> http://bender.astro.sunysb.edu/random/vol_rotate.py
>>>>
>>>> My problem is that the units are wonky on my colorbar.  I input them in
>>>> my transfer function as cgs, and the peaks seem to be in the right place
>>>> based on my input range and sample values.  Can I get the colorbar to
>>>> present the density values in cgs?  You can see the colorbar and the code
>>>> attached.
>>>>
>>>> Oh, I had to add in the line
>>>> matplotlib.use('pdf')
>>>> because I was getting a _tkinter can't find your screen error everytime
>>>> I tried to add the colorbar.  I think it was a matplotlib with my computer
>>>> problem.
>>>>
>>>> Thanks!
>>>>
>>>> Stephanie
>>>> --
>>>> Dr. Stephanie Tonnesen
>>>> Alvin E. Nashman Postdoctoral Fellow
>>>> Carnegie Observatories, Pasadena, CA
>>>> stonnes at gmail.com
>>>>
>>>> _______________________________________________
>>>> yt-users mailing list
>>>> yt-users at lists.spacepope.org
>>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>>
>>>>
>>>
>>>
>>> --
>>> Michael Zingale
>>> Associate Professor
>>>
>>> Dept. of Physics & Astronomy • Stony Brook University • Stony Brook, NY
>>> 11794-3800
>>> *phone*:  631-632-8225
>>> *e-mail*: Michael.Zingale at stonybrook.edu
>>> *web*: http://www.astro.sunysb.edu/mzingale
>>> github: http://github.com/zingale
>>>
>>>
>>> _______________________________________________
>>> yt-users mailing list
>>> yt-users at lists.spacepope.org
>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>
>>>
>>
>>
>> --
>> Cameron Hummels
>> NSF Postdoctoral Fellow
>> Department of Astronomy
>> California Institute of Technology
>> http://chummels.org
>>
>> _______________________________________________
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>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>
>>
>
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