Re: [Matplotlib-users] Problem with importing LaTeX package amsmath and $\text{}$

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2013/3/30 Juergen Hasch <py...@el...>

> Am 30.03.2013 16:29, schrieb Pawel Chojnacki:
> > Please pardon me, but what object is math.usetex attribute of? I can't
> find it in the documentation.
> >
> > http://matplotlib.org/users/usetex.html Mentions only text.usetex.
> >
> >
>
> You need to set
>         mpl.rcParams['text.usetex'] = True
>
> For text you need unicode, for latex raw encoding.
> To have text and latex in one line, use
>         xlabel(u'Häallo '+r'$\varphi$'+ 'r')
>
> Works for me, at least.
>

I've already tried that, and I got the response:

['', '\\usepackage{amsmath}']
Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1437, in __call__
    return self.func(*args)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py",
line 236, in resize
    self.show()
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py",
line 239, in draw
    FigureCanvasAgg.draw(self)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py",
line 421, in draw
    self.figure.draw(self.renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in
draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 898, in
draw
    func(*args)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in
draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/axes.py", line 1997, in draw
    a.draw(renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in
draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/text.py", line 526, in draw
    bbox, info = self._get_layout(renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/text.py", line 309, in
_get_layout
    ismath=ismath)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py",
line 188, in get_text_width_height_descent
    renderer=self)
  File "/usr/lib/pymodules/python2.7/matplotlib/texmanager.py", line 606,
in get_text_width_height_descent
    dvifile = self.make_dvi(tex, fontsize)
  File "/usr/lib/pymodules/python2.7/matplotlib/texmanager.py", line 351,
in make_dvi
    texfile = self.make_tex(tex, fontsize)
  File "/usr/lib/pymodules/python2.7/matplotlib/texmanager.py", line 259,
in make_tex
    fh.write(s)
UnicodeEncodeError: 'ascii' codec can't encode character u'\u0119' in
position 349: ordinal not in range(128)

And after adding:
mpl.rcParams['text.latex.preamble'].append(r'\usepackage{amsmath},\usepackage[utf8]{inputenc}')
I got:

['', '\\usepackage{amsmath},\\usepackage[utf8]{inputenc}']
Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1437, in __call__
    return self.func(*args)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py",
line 236, in resize
    self.show()
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py",
line 239, in draw
    FigureCanvasAgg.draw(self)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py",
line 421, in draw
    self.figure.draw(self.renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in
draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 898, in
draw
    func(*args)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in
draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/axes.py", line 1997, in draw
    a.draw(renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in
draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 1042, in draw
    ticklabelBoxes, ticklabelBoxes2 = self._get_tick_bboxes(ticks_to_draw,
renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/axis.py", line 993, in
_get_tick_bboxes
    extent = tick.label1.get_window_extent(renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/text.py", line 747, in
get_window_extent
    bbox, info = self._get_layout(self._renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/text.py", line 309, in
_get_layout
    ismath=ismath)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py",
line 188, in get_text_width_height_descent
    renderer=self)
  File "/usr/lib/pymodules/python2.7/matplotlib/texmanager.py", line 606,
in get_text_width_height_descent
    dvifile = self.make_dvi(tex, fontsize)
  File "/usr/lib/pymodules/python2.7/matplotlib/texmanager.py", line 371,
in make_dvi
    string:\n%s\nHere is the full report generated by LaTeX: \n\n'%
repr(tex)) + report)
RuntimeError: LaTeX was not able to process the following string:
'$0.2$'
Here is the full report generated by LaTeX:

This is pdfTeX, Version 3.1415926-2.4-1.40.13 (TeX Live 2012/Debian)
 restricted \write18 enabled.
entering extended mode
(./d9d8962c45871ca6b62e5d3dffbe49ab.tex
LaTeX2e <2011/06/27>
Babel <v3.8m> and hyphenation patterns for english, dumylang,
nohyphenation, po
lish, loaded.
(/usr/share/texlive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
(/usr/share/texlive/texmf-dist/tex/latex/base/size10.clo))
(/usr/share/texlive/texmf-dist/tex/latex/type1cm/type1cm.sty)
(/usr/share/texlive/texmf-dist/tex/latex/psnfss/helvet.sty
(/usr/share/texlive/texmf-dist/tex/latex/graphics/keyval.sty))
(/usr/share/texlive/texmf-dist/tex/latex/psnfss/courier.sty)
(/usr/share/texlive/texmf-dist/tex/latex/base/textcomp.sty
(/usr/share/texlive/texmf-dist/tex/latex/base/ts1enc.def))
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsmath.sty
For additional information on amsmath, use the `?' option.
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amstext.sty
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsgen.sty))
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsbsy.sty)
(/usr/share/texlive/texmf-dist/tex/latex/amsmath/amsopn.sty))

! LaTeX Error: Missing \begin{document}.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...

l.9 \usepackage{amsmath},
                         \usepackage[utf8]{inputenc}
(/usr/share/texlive/texmf-dist/tex/latex/base/inputenc.sty
(/usr/share/texlive/texmf-dist/tex/latex/base/utf8.def
(/usr/share/texlive/texmf-dist/tex/latex/base/t1enc.dfu)
(/usr/share/texlive/texmf-dist/tex/latex/base/ot1enc.dfu)
(/usr/share/texlive/texmf-dist/tex/latex/base/omsenc.dfu)
(/usr/share/texlive/texmf-dist/tex/latex/base/ts1enc.dfu)))
(/usr/share/texlive/texmf-dist/tex/latex/geometry/geometry.sty
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ifpdf.sty)
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/ifvtex.sty)
(/usr/share/texlive/texmf-dist/tex/generic/ifxetex/ifxetex.sty)

Package geometry Warning: Over-specification in `h'-direction.
    `width' (5058.9pt) is ignored.

Package geometry Warning: Over-specification in `v'-direction.
    `height' (5058.9pt) is ignored.

)
No file d9d8962c45871ca6b62e5d3dffbe49ab.aux.
(/usr/share/texlive/texmf-dist/tex/latex/base/ts1cmr.fd)
(/usr/share/texlive/texmf-dist/tex/latex/psnfss/ot1pnc.fd)
*geometry* driver: auto-detecting
*geometry* detected driver: dvips
(/usr/share/texlive/texmf-dist/tex/latex/psnfss/ot1phv.fd) [1]
(./d9d8962c45871ca6b62e5d3dffbe49ab.aux) )
(see the transcript file for additional information)
Output written on d9d8962c45871ca6b62e5d3dffbe49ab.dvi (1 page, 340 bytes).
Transcript written on d9d8962c45871ca6b62e5d3dffbe49ab.log.

And I really don't get what's happening :S