matplotlib-users

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

[Pawel C. <cho...@li...>]

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

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

[Phil E. <pel...@gm...>]

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 <cho...@li...> 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
>
>
>
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>

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

[Pawel C. <cho...@li...>]

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.


2013/3/30 Phil Elson <pel...@gm...>

> 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 <cho...@li...> 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
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>>
>

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

[Juergen H. <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.

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

[Pawel C. <cho...@li...>]

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

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

[Juergen H. <py...@el...>]

I tested it under Linux now, and I see your problem. The latex files don't compile cleanly, this is why you get the 
error. You can find the .tex files under ~./matplotlib/tex.cache

It looks like you have a problem with the font encoding when using unicode characters.
This works for me under Linux and Windows:

import numpy as np
import matplotlib as mpl
mpl.rcParams['text.latex.preamble'] = [r'\usepackage{amsmath}' , r'\usepackage[T1]{fontenc}']
mpl.rcParams['text.latex.unicode'] = True
mpl.rcParams['text.usetex'] = True

import pylab as py

py.axhspan(8400,8730,alpha=0.15)
py.title(u'Wyniki eksperymentu pomiaru gęstości ciała stałego',size='large',family='serif')
py.ylabel(r'$\text{lol}$',size='large',family='serif')
py.grid(True)
py.show()

Am 30.03.2013 22:15, schrieb Pawel Chojnacki:
> 2013/3/30 Juergen Hasch <py...@el... <mailto: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

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

[Pawel C. <cho...@li...>]

Thank you very much - hovewer, your solution isn't enough. Adding your
lines generate:

['\\usepackage{amsmath}', '\\usepackage[T1]{fontenc}']
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 571, in draw
    self._fontproperties, angle)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py",
line 215, in draw_tex
    Z = texmanager.get_grey(s, size, self.dpi)
  File "/usr/lib/pymodules/python2.7/matplotlib/texmanager.py", line 513,
in get_grey
    pngfile = self.make_png(tex, fontsize, dpi)
  File "/usr/lib/pymodules/python2.7/matplotlib/texmanager.py", line 442,
in make_png
    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:
u''
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
(./2c666a8feb5dd27d92f3c286e7775fb6.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/ucs/ucs.sty
(/usr/share/texlive/texmf-dist/tex/latex/ucs/data/uni-global.def))
(/usr/share/texlive/texmf-dist/tex/latex/base/inputenc.sty
(/usr/share/texlive/texmf-dist/tex/latex/ucs/utf8x.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))
(/usr/share/texlive/texmf-dist/tex/latex/base/fontenc.sty
(/usr/share/texlive/texmf-dist/tex/latex/base/t1enc.def))
(/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.

) (./2c666a8feb5dd27d92f3c286e7775fb6.aux)
(/usr/share/texlive/texmf-dist/tex/latex/base/ts1cmr.fd)
(/usr/share/texlive/texmf-dist/tex/latex/psnfss/t1pnc.fd)
(/usr/share/texlive/texmf-dist/tex/latex/ucs/ucsencs.def)
*geometry* driver: auto-detecting
*geometry* detected driver: dvips
(/usr/share/texlive/texmf-dist/tex/latex/psnfss/t1phv.fd)
(./2c666a8feb5dd27d92f3c286e7775fb6.aux) )
No pages of output.
Transcript written on 2c666a8feb5dd27d92f3c286e7775fb6.log.

And I still don't have slightest idea what's wrong with LaTeX in Matplotlib
:S


2013/3/31 Juergen Hasch <py...@el...>

> I tested it under Linux now, and I see your problem. The latex files don't
> compile cleanly, this is why you get the error. You can find the .tex files
> under ~./matplotlib/tex.cache
>
> It looks like you have a problem with the font encoding when using unicode
> characters.
> This works for me under Linux and Windows:
>
>
> import numpy as np
> import matplotlib as mpl
> mpl.rcParams['text.latex.**preamble'] = [r'\usepackage{amsmath}' ,
> r'\usepackage[T1]{fontenc}']
> mpl.rcParams['text.latex.**unicode'] = True
> mpl.rcParams['text.usetex'] = True
>
>
> import pylab as py
>
> py.axhspan(8400,8730,alpha=0.**15)
> py.title(u'Wyniki eksperymentu pomiaru gęstości ciała
> stałego',size='large',family='**serif')
> py.ylabel(r'$\text{lol}$',**size='large',family='serif')
> py.grid(True)
> py.show()
>
> Am 30.03.2013 22:15, schrieb Pawel Chojnacki:
>
>> 2013/3/30 Juergen Hasch <py...@el... <mailto: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<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
>> (./**d9d8962c45871ca6b62e5d3dffbe49**ab.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 d9d8962c45871ca6b62e5d3dffbe49**ab.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]
>> (./**d9d8962c45871ca6b62e5d3dffbe49**ab.aux) )
>> (see the transcript file for additional information)
>> Output written on d9d8962c45871ca6b62e5d3dffbe49**ab.dvi (1 page, 340
>> bytes).
>> Transcript written on d9d8962c45871ca6b62e5d3dffbe49**ab.log.
>>
>> And I really don't get what's happening :S
>>
>
>

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

[Juergen H. <py...@el...>]

Am 31.03.2013 08:50, schrieb Pawel Chojnacki:
> Thank you very much - hovewer, your solution isn't enough. Adding your lines generate:
>

The problem is this:

> RuntimeError: LaTeX was not able to process the following string:
> u''
> Here is the full report generated by LaTeX:
>

Latex doesn't like the empty string. This is caused by the '\n' in your title.
Can you replace your original line:
	py.title(u'Wyniki eksperymentu pomiaru gęstości ciała stałego\n',size='large',family='serif')
with the new one, as in the example I sent you:
	py.title(u'Wyniki eksperymentu pomiaru gęstości ciała stałego',size='large',family='serif')

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

[Pawel C. <cho...@li...>]

Thank you, it works flawlessly now :)


2013/3/31 Juergen Hasch <py...@el...>

> Am 31.03.2013 08:50, schrieb Pawel Chojnacki:
>
>  Thank you very much - hovewer, your solution isn't enough. Adding your
>> lines generate:
>>
>>
> The problem is this:
>
>
>  RuntimeError: LaTeX was not able to process the following string:
>> u''
>> Here is the full report generated by LaTeX:
>>
>>
> Latex doesn't like the empty string. This is caused by the '\n' in your
> title.
> Can you replace your original line:
>         py.title(u'Wyniki eksperymentu pomiaru gęstości ciała
> stałego\n',size='large',**family='serif')
> with the new one, as in the example I sent you:
>
>         py.title(u'Wyniki eksperymentu pomiaru gęstości ciała
> stałego',size='large',family='**serif')
>
>