I've found that putting the text you want to be sans-serif inside \sf{}
works. So something like:
xlabel(r'$\sf{\Delta direction})
-Jeffrey
On Wed, Mar 4, 2009 at 1:59 AM, Jouni K. Seppänen <j...@iki.fi> wrote:
> per freem <perfr...@gmail.com> writes:
>
> > i am using the tex feature to put some greek symbols in some labels of my
> > plots. for example,
> >
> > rcParams['text.usetex'] = True
> > plot(a, b, 'o')
> > xlabel('\Delta direction')
>
> Are you sure you need usetex? Matplotlib's own mathtext renderer is
> really quite good these days, and expressions like
>
> xlabel(r'$\Delta$ direction')
>
> should work just fine without usetex.
>
> > the '\Delta' is rendered correctly but that changes the fonts of the
> > tick labels and of all the text in the labels to tex's default font
> > (which looks like times new roman). is there a way to use tex only for
> > greek symbols but retain the default sans-serif font of matplotlib for
> > all the other things?
>
> No, usetex is an all-or-nothing choice. In principle it should be
> possible to change matplotlib to send only some strings (or string
> parts) to TeX, but I guess no-one has needed such a feature badly
> enough - the built-in mathtext renderer is good enough for most uses,
> and the remaining reason to use usetex is that you are including your
> figure in a LaTeX document and want the fonts to perfectly match the
> surrounding text, and in that case the current behavior is exactly
> right.
>
> The ordinary way to specify fonts works with the usetex engine, with the
> restriction that only some fonts are usable with LaTeX. The following
> dictionary (in texmanager.py) has the recognized fonts as keys and the
> corresponding LaTeX packages as (the second part of) the values:
>
> font_info = {'new century schoolbook': ('pnc',
>
> r'\renewcommand{\rmdefault}{pnc}'),
> 'bookman': ('pbk', r'\renewcommand{\rmdefault}{pbk}'),
> 'times': ('ptm', r'\usepackage{mathptmx}'),
> 'palatino': ('ppl', r'\usepackage{mathpazo}'),
> 'zapf chancery': ('pzc', r'\usepackage{chancery}'),
> 'cursive': ('pzc', r'\usepackage{chancery}'),
> 'charter': ('pch', r'\usepackage{charter}'),
> 'serif': ('cmr', ''),
> 'sans-serif': ('cmss', ''),
> 'helvetica': ('phv', r'\usepackage{helvet}'),
> 'avant garde': ('pag', r'\usepackage{avant}'),
> 'courier': ('pcr', r'\usepackage{courier}'),
> 'monospace': ('cmtt', ''),
> 'computer modern roman': ('cmr', ''),
> 'computer modern sans serif': ('cmss', ''),
> 'computer modern typewriter': ('cmtt', '')}
>
> --
> Jouni K. Seppänen
> http://www.iki.fi/jks
>
>
>
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