[yt-users] Plot Background

[Andrew James Emerick]

Nathan & Christine,

Thanks for the fixes. The 'dumb' solution is the one I was planning on
doing if there wasn't a more attractive option, but I wanted to see if
there was a built-in way to do this without changing the field values.

Nathan:
I do like your solution, and I do like the way the white on black looks in
the plot. Its probably not universally useful, but I can imagine using it
in some cases. Is there any way to do the matplotlib level commands though
such that its just the background within the plot itself that changes
(keeping the plot borders white). Basically doing what Christine suggested
without editing the fields.



Andrew E.


On Wed, May 28, 2014 at 5:00 PM, Christine Simpson <
csimpson at astro.columbia.edu> wrote:

> A third rather dumb solution that I use is to add a tinny-tiny number to
> the field I’m projecting.  I assume you are getting the white where the
> field is zero?  If you are using a color bar with black as the color for
> the lowest value (like 'gray’), this will give you black where the field
> you are projecting is zero (or rather tinny-tiny).
>
> Christine
>
> On May 28, 2014, at 2:51 PM, Nathan Goldbaum <nathan12343 at gmail.com>
> wrote:
>
> Hi Andrew,
>
> On Wed, May 28, 2014 at 1:12 PM, Andrew James Emerick <
> emerick at astro.columbia.edu> wrote:
>
>> Is there a way to set the background color for projection plots? I'd like
>> to set it to be black instead of white, which I assume is the default.
>>
>
> That's right, following matplotlib's defaults.
>
> There are two options to create a plot with a black background color.  The
> first is to pass the 'facecolor' keyword argument down to matplotlib when
> calling the save function.  Unfortunately since the foreground is black by
> default, you'll also have to adjust the colors of all of the axes, tick
> marks, axes text, colorbars, etc to be white. Here is an example notebook
> that does this:
> http://nbviewer.ipython.org/gist/ngoldbaum/7367380cbe6683159da5
>
> Another option would be to adjust the matplotlib defaults in your
> matplotlibrc (http://matplotlib.org/1.3.1/users/customizing.html) so that
> figures have a black background by default.
>
> I have to say that I kind of like the way the black background looks and
> could definitely see it being useful in some situations.  I don't think it
> would be very hard to add a "set_black_theme" function that does more or
> less what my notebook does.  That would probably be a nice afternoon hack
> for someone that wanted to familiarize themselves with yt's plotting code.
>
> Hope that's helpful,
>
> Nathan
>
>
>>
>>
>>
>> Thanks,
>> Andrew E.
>> --
>> Graduate Student
>> Columbia University
>> Department of Astronomy
>>
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-- 
Graduate Student
Columbia University
Department of Astronomy
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