I can reproduce this. The Windows 8 Arial font is different from the one
in Windows 7. It seems other projects encountered and fixed the same
issue: <http://code.google.com/p/sumatrapdf/issues/detail?id=2056>
Christoph
On 1/17/2013 7:20 AM, Michael Droettboom wrote:
> 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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