Is the Arial font file different on Windows 8 vs. Windows 7? (Just a
difference in file size would be enough to know). If so, it's probably
the nature of those differences that we need to look into.
Mike
On 01/16/2013 10:04 AM, CAB wrote:
Dear Mike & Paul,
Thanks for your replies. I tried Mike's protocol, and I found that
font_manager found the Arial font ("C:\\Windows\\fonts\\Arial.ttf") in
the right place. I don't have fontforge yet, so I guess I need to
install and check it out.
But the thing that bothers me about this error is that it only occurs
if I try to mix mathtext and non-matplotlib font. So matplotlib finds
Arial just fine. And it finds the mathtext font fine. Only the
mixture is fatal. It's as if the parser loses track of the Arial
font, or it looks for a mathtext glyph in Arial. Very strange that it
occurs only in Windows 8.
Regarding Paul's response, I don't have LaTeX on the W8 computer, and
my impression is that mathtext doesn't look for "mathematical Arial",
instead there are some packaged fonts that it uses for this purpose,
like Computer Modern and STIX.
I'll try to hunt this down further, and let you know if I find anything.
Best,
Chad
*From:* Michael Droettboom <md...@stsci.edu>
*To:* matplotlib-users@lists.sourceforge.net
*Sent:* Thursday, January 10, 2013 7:35 AM
*Subject:* Re: [Matplotlib-users] mathtext and fonts under Windows 8
Since this is specific to Windows 8, I wonder if the Arial font has
been updated in that version. If it's a newer OTF font, rather than a
TTF font, it's possible matplotlib can't read it correctly.
You can see what font file is on each platform by starting up a Python
prompt and doing:
>>> from matplotlib import font_manager
>>> font_manager.findfont("Arial")
It should display the path to the font. From that, you should be able
to get the Arial file on each of your platforms and see if they are
different. To get more details, you could open them up in the open
source "fontforge" tool. Sorry I can't do this myself, as I don't
have access to anything past XP.
If the fonts turn out to be different, as a workaround, you could try
backing up and then replacing the Arial font on your Windows 8 machine
with the one on your Windows 7 machine.
Cheers,
Mike
On 01/09/2013 11:59 PM, Paul Hobson wrote:
Sounds like it might have something to do with your Latex
installation (if any) or the barebones Latex-rendering done by MPL
alone. Namely, they simply don't have the characters for mathematical
Arial available.
Not too sure though. Hopefully someone more knowledgeable responds.
-paul
On Tue, Jan 8, 2013 at 9:31 PM, CAB <cabr...@yahoo.com
<mailto:cabr...@yahoo.com>> wrote:
Hi, All,
I am encountering a thorny problem when trying to run matplotlib
under Windows 8. If I label an axis using a command like
ax.set_ylabel(r'time (s)', name='Arial'),
all is well. But if try to add mathtext to that, as in
ax.set_ylabel(r'time ($s$)', name='Arial'),
mathtext.py <http://mathtext.py/> throws an error (a very long
stream) ending in "RuntimeError: Face has no glyph names". If I
remove the "name='Arial'" above and let the program default to
Bitstream Vera Sans, the mathtext works.
This problem does not occur under Windows 7 or XP; only under two
different Windows 8 installations. Any ideas what's going on?
Chad
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