[yt-users] Axis labels and text annotations

Nathan Goldbaum nathan12343 at gmail.com
Sat May 3 21:39:10 PDT 2014


Forgot to mention that there's a bug related to how PhasePlot uses
display_name in 2.6.  I've fixed it in this pull request, which I expect to
be accepted quickly:

https://bitbucket.org/yt_analysis/yt/pull-request/873/fixing-an-issue-with-phaseplot-ignoring/diff


On Sat, May 3, 2014 at 9:31 PM, Nathan Goldbaum <nathan12343 at gmail.com>wrote:

>
>
>
> On Sat, May 3, 2014 at 8:53 PM, Jeremy Ritter <jritter at astro.as.utexas.edu
> > wrote:
>
>> Hello,
>>
>> I'm relatively new to YT. Creating great looking plots seems to be really
>> easy, but setting axis labels and other text labels (timestamps) has proven
>> to be quite challenging. I'm creating some phase plots with the latest
>> stable version (2.6 I think), and I would like for variables to have proper
>> names, e.g. "Number Density" instead of "NumberDensity".
>>
>> I first tried changing the labels using the axes object
>> set_xlabel/set_ylabel methods, but that removes the units and doesn't
>> accept latex style commands for making my own units. It also appears to
>> change the font style.
>>
>> Then I tried creating derived fields with the proper names including
>> spaces, but it seems that the labels get squished, having all spaces
>> removed when it prints the label. Filename output still has the spaces in
>> the variable name.
>
>
>> What is the easiest way to set publication quality axis labels with units
>> in v2.6?
>>
>
> Hi Jeremy,
>
> This is cleaner in the upcoming 3.0 release, where we've rethought how
> fields, units, and plot labels work.
>
> In 2.6 you should be able to get what you want by supplying a custom
> `display_name` when you call `add_field`.  See this page for more details
> on keyword arguments accepted by add_field:
>
>
> http://yt-project.org/docs/dev/analyzing/creating_derived_fields.html#field-options
>
>
>>
>> My other problem seems to be that I'm unable to use any of the annotation
>> callbacks with a phase plot. Is this true? I just want to add a timestamp,
>> for which I've already created the string, e.g. "5.35 Myr".
>>
>>
> This wouldn't be too hard to add, but no one has done it yet.  We'd love
> pull requests to enable plot callbacks for phase plots, which should be
> relatively straightforward.  Plot callbacks for ProfilePlot would be harder
> (since it shares less code with PlotWindow) but doable probably.
>
> For now take a look at this example, which addresses both the points you
> bring up:
>
> http://nbviewer.ipython.org/gist/ngoldbaum/11510747
>
> -Nathan
>
> Thanks!
>> -Jeremy
>> _______________________________________________
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>>
>
>
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