Doesn't look like you're using math.usetex & therefore are not actually
using latex, but mpl's stripped down tex implementation.
Try setting usetex to True, or alternatively I think you could use \mathrm
instead of \text to get non mathematical text.
HTH
On 30 March 2013 11:43, Pawel Chojnacki <chojnacki.pa...@linux.com> wrote:
> Hello,
>
> I've been having some troubles with LaTeX in matplotlib. My example script:
>
> #!/usr/bin/env python2
> #-*- coding: utf-8 -*-
>
> __author__ = 'Pawel Chojnacki'
> __copyright__ ='Copyleft 2013 Pawel Chojnacki'
> __version__ = '1.0'
> __date__ = '29-03-2013'
> __license__ = 'GPLv3'
>
> import numpy as np
> import matplotlib as mpl # Zmiana ustawien LaTeXa
> mpl.rcParams['text.latex.preamble'].append(r'\usepackage{amsmath}')
> #~ mpl.rcParams['text.latex.preamble'] = r'\usepackage{amsmath}'
> #~ mpl.rcParams['text.latex.preamble']=[r"\usepackage{amsmath}"]
> #~ mpl.rcParams['math.usetex'] = True
> print mpl.rcParams['text.latex.preamble']
> import pylab as py
>
> py.axhspan(8400,8730,alpha=0.15)
> py.title(u'Wyniki eksperymentu pomiaru gęstości ciała
> stałego\n',size='large',family='serif')
> py.ylabel((u'Gęstość ciała stałego ' +
> r'$\frac{kg}{m^3}$'),size='large',family='serif')
> #~ py.ylabel((r'$\text{lol}$'),size='large',family='serif')
> py.ylabel((r'$\text{lol}$'),size='large',family='serif')
> py.xlabel(u'Metoda pomiaru',size='large',family='serif')
> py.grid(True)
> py.show()
>
> Gives me the following output:
>
> ['', '\\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/axis.py", line 1054, in
> draw
> self.label.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 193, in get_text_width_height_descent
> self.mathtext_parser.parse(s, self.dpi, prop)
> File "/usr/lib/pymodules/python2.7/matplotlib/mathtext.py", line 2999,
> in parse
> box = self._parser.parse(s, font_output, fontsize, dpi)
> File "/usr/lib/pymodules/python2.7/matplotlib/mathtext.py", line 2357,
> in parse
> self._expression.parseString(s)
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 1048,
> in parseString
> loc, tokens = self._parse( instring, 0 )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 981,
> in _parseCache
> value = self._parseNoCache( instring, loc, doActions, callPreParse )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 924,
> in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc, doActions )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 2559,
> in parseImpl
> return self.expr._parse( instring, loc, doActions, callPreParse=False )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 981,
> in _parseCache
> value = self._parseNoCache( instring, loc, doActions, callPreParse )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 924,
> in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc, doActions )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 2307,
> in parseImpl
> loc, exprtokens = e._parse( instring, loc, doActions )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 981,
> in _parseCache
> value = self._parseNoCache( instring, loc, doActions, callPreParse )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 924,
> in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc, doActions )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 2672,
> in parseImpl
> loc, tokens = self.expr._parse( instring, loc, doActions,
> callPreParse=False )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 981,
> in _parseCache
> value = self._parseNoCache( instring, loc, doActions, callPreParse )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 924,
> in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc, doActions )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 2307,
> in parseImpl
> loc, exprtokens = e._parse( instring, loc, doActions )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 981,
> in _parseCache
> value = self._parseNoCache( instring, loc, doActions, callPreParse )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 924,
> in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc, doActions )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 2416,
> in parseImpl
> ret = e._parse( instring, loc, doActions )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 981,
> in _parseCache
> value = self._parseNoCache( instring, loc, doActions, callPreParse )
> File "/usr/lib/pymodules/python2.7/matplotlib/pyparsing.py", line 950,
> in _parseNoCache
> tokens = fn( instring, tokensStart, retTokens )
> File "/usr/lib/pymodules/python2.7/matplotlib/mathtext.py", line 2050,
> in raise_error
> raise ParseFatalException(msg + "\n" + s)
> ParseFatalException: Expected end of math '$'
> $\text{lol}$ (at char 0), (line:1, col:1)
>
> And a blank window. The same line - $\text{lol}$ works pretty well in pure
> LaTeX. While the package seems loaded, matplotlib doesn't send the command
> as it's supposed to. Why is that?
>
> Thanks in advance,
>
> Pawel
>
>
>
> ------------------------------------------------------------------------------
> Own the Future-Intel(R) Level Up Game Demo Contest 2013
> Rise to greatness in Intel's independent game demo contest. Compete
> for recognition, cash, and the chance to get your game on Steam.
> $5K grand prize plus 10 genre and skill prizes. Submit your demo
> by 6/6/13. http://altfarm.mediaplex.com/ad/ck/12124-176961-30367-2
> _______________________________________________
> Matplotlib-users mailing list
> Matplotlib-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
------------------------------------------------------------------------------
Own the Future-Intel(R) Level Up Game Demo Contest 2013
Rise to greatness in Intel's independent game demo contest. Compete
for recognition, cash, and the chance to get your game on Steam.
$5K grand prize plus 10 genre and skill prizes. Submit your demo
by 6/6/13. http://altfarm.mediaplex.com/ad/ck/12124-176961-30367-2
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
