Sorry, I made a typo. See below.
> Hi,
>
> I am having a ridiculous amount of trouble getting Computer Modern Roman to
> appear in my plots. So many problems, in fact, I nuked the whole of macports
> and installed the things I need again because I thought it might have been a
> problem with using an upgraded version of macports from Snow Leopard (I'm now
> using Lion).
>
> This is what I have:
> OS X Lion
> Fresh install of python 2.6 from macports
> Numpy version 1.6.1 (from macports)
> freetype (from macports)
> libpng (from macports)
> matplotlib 1.0.1 (from macports)
>
> When I run my plotting script, I get the following error as soon as the
> script starts (i.e., right after matplotlib is imported):
> /opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/__init__.py:403:
> UserWarning: matplotlibrc text.usetex can not be used with *Agg backend
> unless dvipng-1.5 or later is installed on your system
> warnings.warn( 'matplotlibrc text.usetex can not be used with *Agg '
>
> Note: I am using the PDF backend.
>
> When I try to save the plot to a pdf file, I get the following error:
> /opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py:1242:
> UserWarning: findfont: Font family ['serif'] not found. Falling back to
> Bitstream Vera Sans
> (prop.get_family(), self.defaultFamily[fontext]))
>
> This is frustrating because it's a serif font that I need.
>
> After much thought, and Googling, I found out how to suppress the first
> warning message, and that is to add the directory where dvipng lives to my
> PATH variable. It is worth noting here that dvipng version 1.5 does not
> exist. The latest version is 1.14 as can be seen here:
> http://download.savannah.gnu.org/releases/dvipng/
>
Once I do this the first warning DOES disappear, and the font error disappears,
but I get a new error:
> Traceback (most recent call last):
> File "refinement.py", line 60, in <module>
> fig.savefig('conv.pdf')
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/figure.py",
> line 1084, in savefig
> self.canvas.print_figure(*args, **kwargs)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backend_bases.py",
> line 1923, in print_figure
> **kwargs)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_pdf.py",
> line 2156, in print_pdf
> self.figure.draw(renderer)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
> line 55, in draw_wrapper
> draw(artist, renderer, *args, **kwargs)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/figure.py",
> line 798, in draw
> func(*args)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
> line 55, in draw_wrapper
> draw(artist, renderer, *args, **kwargs)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axes.py",
> line 1946, in draw
> a.draw(renderer)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
> line 55, in draw_wrapper
> draw(artist, renderer, *args, **kwargs)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axis.py",
> line 1017, in draw
> tick.draw(renderer)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
> line 55, in draw_wrapper
> draw(artist, renderer, *args, **kwargs)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axis.py",
> line 234, in draw
> self.label1.draw(renderer)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py",
> line 55, in draw_wrapper
> draw(artist, renderer, *args, **kwargs)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/text.py",
> line 571, in draw
> self._fontproperties, angle)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_pdf.py",
> line 1549, in draw_tex
> psfont = self.tex_font_mapping(dvifont.texname)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_pdf.py",
> line 1365, in tex_font_mapping
> dviread.PsfontsMap(dviread.find_tex_file('pdftex.map'))
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/dviread.py",
> line 668, in __init__
> self._parse(file)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/dviread.py",
> line 701, in _parse
> self._register(words)
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/dviread.py",
> line 727, in _register
> assert encoding is None
> AssertionError
>
> I have no idea what this means or how to fix it! I assumed it was a problem
> with the version of dvipng that I'm using, but I'm using the latest one.
>
> I have also tried grabbing the matplotlib source from git and compiling it by
> hand (yes, both the macports install and the source install see that I have
> latex installed, I also have type1cm.sty installed from texlive-latex-extra
> so the fonts are there. typ1cm.sty lives in
> /opt/local/share/texmf-texlive-dist/tex/latex/type1cm/). Maybe it's a problem
> with matplotlib not looking in the right place for the fonts?
>
> Can anybody out there provide any suggestions?
Damon McDougall
d.mcdoug...@warwick.ac.uk
http://damon.is-a-geek.com
B2.39
Mathematics Institute
Coventry
West Midlands
CV4 7AL
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