[Matplotlib-devel] Setting the mathtext font via the object oriented API?

Thomas Caswell tcaswell at gmail.com
Tue May 31 22:26:55 EDT 2016

I am not sure that this was an intentional change.

In either case, the ability to control this not via rcparams is clearly a
good idea.


On Tue, May 31, 2016, 22:13 Nathan Goldbaum <nathan12343 at gmail.com> wrote:

> I think I'm going to work around this by wrapping the places where we draw
> matplotlib figures with context managers for the classic style, making use
> of matplotlib.style.context. We only draw figures in a few places, so it's
> a lot less invasive to use the context manager than I originally feared.
> Specifying the style exactly should also make it easier for us to avoid
> issues due to people's local matplotlib settings.
> As far as I can see, the font used for mathtext rendering can only be
> controlled by the mathtext.fontset rcparam (see the function
> MathTextParser.parse). Since I liked the old default - computer modern - I
> never noticed that it wasn't possible to control it via the object oriented
> API.
> I'm going to close the issue I linked to in the OP and instead open a
> feature request issue asking for a way to control the font of mathtext
> without messing with the rcparam system. Maybe it would also make sense for
> the font chosen for mathtext to try to match the font given by the
> FontProperties instance - for example, switching to a serif font if the
> FontProperties for the Text instance correspond to a serif font.
> On Tue, May 31, 2016 at 5:51 PM, Nathan Goldbaum <nathan12343 at gmail.com>
> wrote:
>> Hi all,
>> This is in reference to an issue I opened today:
>> https://github.com/matplotlib/matplotlib/issues/6514#issuecomment-222833315
>> Is there a way to tell the mathtext renderer to use the computer modern
>> font that used to be the default? I know I can do this via the
>> mathtext.fontset rcparam, but this is in the context of a library that
>> depends on matplotlib, so I'd prefer a way to do this without overriding
>> any rcparams a user has set already.
>> For non-mathtext text, this is easy, I just need to set the
>> FontProperties instance associated with the Text object. However, there
>> doesn't seem to be a way to do something similar for mathtext.
>> Thanks for your help,
>> Nathan
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