matplotlib-users

[Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Klonuo U. <kl...@gm...>]

Hi,

How can I use font in my locale or even better UTF-8 for plot
annotations?

Right now I can see only empty rectangles instead characters when I try
to enter anything other then ASCII


Thanks

Re: [Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Daniel M. <dan...@go...>]

Hi,

try putting an r in front of your string:
e.g. label=r'äöü߀'

And it might help to tell your editor the used encoding, too, by
putting this as the first line:
# -*- coding: utf-8 -*-


Hope this helps,
Daniel
2011/6/9 Klonuo Umom <kl...@gm...>:
> Hi,
>
> How can I use font in my locale or even better UTF-8 for plot
> annotations?
>
> Right now I can see only empty rectangles instead characters when I try
> to enter anything other then ASCII
>
>
> Thanks
>
>
> ------------------------------------------------------------------------------
> EditLive Enterprise is the world's most technically advanced content
> authoring tool. Experience the power of Track Changes, Inline Image
> Editing and ensure content is compliant with Accessibility Checking.
> http://p.sf.net/sfu/ephox-dev2dev
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Re: [Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Klonuo U. <kl...@gm...>]

I use IPython (as pylab), and Qt4Agg as mpl backend

I was entering annotations in Qt4 'Figure Options' dialog

However, even if I try:

=======================================
import matplotlib.pyplot as plt
plt.plot([1,2,3,4])
plt.ylabel(r'*some non ASCII chars*’)
plt.show()
---------------------------------------

I don't get anything, no even empty rectangles

If I use:

=======================================
plt.ylabel('ASCII text')
---------------------------------------

then I see y axis annotated with ASCII text



On 09.06.2011 16:49:13 Daniel Mader wrote:

> Hi,
> 
> try putting an r in front of your string:
> e.g. label=r'äöü߀'
> 
> And it might help to tell your editor the used encoding, too, by
> putting this as the first line:
> # -*- coding: utf-8 -*-
> 
> 
> Hope this helps,
> Daniel
> 2011/6/9 Klonuo Umom <kl...@gm...>:
> > Hi,
> >
> > How can I use font in my locale or even better UTF-8 for plot
> > annotations?
> >
> > Right now I can see only empty rectangles instead characters when I try
> > to enter anything other then ASCII
> >
> >
> > Thanks
> >
> >
> > ------------------------------------------------------------------------------
> > EditLive Enterprise is the world's most technically advanced content
> > authoring tool. Experience the power of Track Changes, Inline Image
> > Editing and ensure content is compliant with Accessibility Checking.
> > http://p.sf.net/sfu/ephox-dev2dev
> > _______________________________________________
> > Matplotlib-users mailing list
> > Mat...@li...
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> >

Re: [Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Klonuo U. <kl...@gm...>]

Here is trace if I run this UTF-8 encoded file:

=======================================
#-*- coding: utf-8 -*-
import matplotlib.pyplot as plt
plt.plot([1,2,3,4])
plt.ylabel(r'Пајтон')
plt.show()
---------------------------------------

on command line:

=======================================
Traceback (most recent call last):
  File "C:\Python26\lib\site-packages\matplotlib\backends\backend_qt4.py", line 208, in resizeEvent
    self.draw()
  File "C:\Python26\lib\site-packages\matplotlib\backends\backend_qt4agg.py", line 130, in draw
    FigureCanvasAgg.draw(self)
  File "C:\Python26\lib\site-packages\matplotlib\backends\backend_agg.py", line 394, in draw
    self.figure.draw(self.renderer)
  File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python26\lib\site-packages\matplotlib\figure.py", line 798, in draw
    func(*args)
  File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python26\lib\site-packages\matplotlib\axes.py", line 1946, in draw
    a.draw(renderer)
  File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python26\lib\site-packages\matplotlib\axis.py", line 1032, in draw
    self.label.draw(renderer)
  File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python26\lib\site-packages\matplotlib\text.py", line 526, in draw
    bbox, info = self._get_layout(renderer)
  File "C:\Python26\lib\site-packages\matplotlib\text.py", line 305, in _get_layout
    clean_line, ismath = self.is_math_text(line)
  File "C:\Python26\lib\site-packages\matplotlib\text.py", line 989, in is_math_text
    if cbook.is_math_text(s):
  File "C:\Python26\lib\site-packages\matplotlib\cbook.py", line 1793, in is_math_text
    s = unicode(s)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 0: ordinal not in range(128)

Re: [Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Daniel M. <dan...@go...>]

Hi,

I just noticed this doesn't work here, too, as I expected :(

with u'äöüß°€' I can print the string, but the labels are still broken
in the plot:

# -*- coding: utf-8 -*-

import matplotlib.pyplot as plt
plt.plot([1,2,3,4])

xlabel = r'öäüß°€'
plt.xlabel(xlabel)
plt.show()
plt.savefig('asdf')

Would be interesting to know what's going on...


2011/6/9 Klonuo Umom <kl...@gm...>:
> Here is trace if I run this UTF-8 encoded file:
>
> =======================================
> #-*- coding: utf-8 -*-
> import matplotlib.pyplot as plt
> plt.plot([1,2,3,4])
> plt.ylabel(r'Пајтон')
> plt.show()
> ---------------------------------------
>
> on command line:
>
> =======================================
> Traceback (most recent call last):
>  File "C:\Python26\lib\site-packages\matplotlib\backends\backend_qt4.py", line 208, in resizeEvent
>    self.draw()
>  File "C:\Python26\lib\site-packages\matplotlib\backends\backend_qt4agg.py", line 130, in draw
>    FigureCanvasAgg.draw(self)
>  File "C:\Python26\lib\site-packages\matplotlib\backends\backend_agg.py", line 394, in draw
>    self.figure.draw(self.renderer)
>  File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
>    draw(artist, renderer, *args, **kwargs)
>  File "C:\Python26\lib\site-packages\matplotlib\figure.py", line 798, in draw
>    func(*args)
>  File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
>    draw(artist, renderer, *args, **kwargs)
>  File "C:\Python26\lib\site-packages\matplotlib\axes.py", line 1946, in draw
>    a.draw(renderer)
>  File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
>    draw(artist, renderer, *args, **kwargs)
>  File "C:\Python26\lib\site-packages\matplotlib\axis.py", line 1032, in draw
>    self.label.draw(renderer)
>  File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
>    draw(artist, renderer, *args, **kwargs)
>  File "C:\Python26\lib\site-packages\matplotlib\text.py", line 526, in draw
>    bbox, info = self._get_layout(renderer)
>  File "C:\Python26\lib\site-packages\matplotlib\text.py", line 305, in _get_layout
>    clean_line, ismath = self.is_math_text(line)
>  File "C:\Python26\lib\site-packages\matplotlib\text.py", line 989, in is_math_text
>    if cbook.is_math_text(s):
>  File "C:\Python26\lib\site-packages\matplotlib\cbook.py", line 1793, in is_math_text
>    s = unicode(s)
> UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 0: ordinal not in range(128)
>
> ------------------------------------------------------------------------------
> EditLive Enterprise is the world's most technically advanced content
> authoring tool. Experience the power of Track Changes, Inline Image
> Editing and ensure content is compliant with Accessibility Checking.
> http://p.sf.net/sfu/ephox-dev2dev
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Re: [Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Klonuo U. <kl...@gm...>]

On 09.06.2011 17:58:49 Daniel Mader wrote:

> Hi,
> 
> I just noticed this doesn't work here, too, as I expected :(
> 
> with u'äöüß°€' I can print the string, but the labels are still broken
> in the plot:
> 
> # -*- coding: utf-8 -*-
> 
> import matplotlib.pyplot as plt
> plt.plot([1,2,3,4])
> 
> xlabel = r'öäüß°€'
> plt.xlabel(xlabel)
> plt.show()
> plt.savefig('asdf')
> 
> Would be interesting to know what's going on...


Yeah, that could be nice :)

Out of curiosity I tried to complicate my life and use TeX for 
annotation. It's great feature of course, it shows 'regular' text fine, 
but still can't do UTF-8. 

AFAIK I used this when working LaTeX in UTF-8:
=======================================
\usepackage[utf8] {inputenc}
\usepackage [T2A] {fontenc}
---------------------------------------

but can't now dig inside mpl code for any little detail, then try to
solve yet another...

IMHO this things should be more easier to set. I quickly browsed
matplolibrc, but can't see how I can solve this

Re: [Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Daniel M. <dan...@go...>]

I also use LaTeX with utf8 input encoding (and imho the required
preamble is fully OK since it is 100% LaTeX) when generating PDF
graphics -- but I do that only on a Linux box, so I can't verify for
Windows...

2011/6/9 Klonuo Umom <kl...@gm...>:
> AFAIK I used this when working LaTeX in UTF-8:
> =======================================
> \usepackage[utf8] {inputenc}
> \usepackage [T2A] {fontenc}
> ---------------------------------------

Re: [Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Stan W. <sta...@nr...>]

> From: Daniel Mader [mailto:dan...@go...] 
> Sent: Thursday, June 09, 2011 11:59
> 
> Hi,
> 
> I just noticed this doesn't work here, too, as I expected :(
> 
> with u'äöüß°€' I can print the string, but the labels are still broken
> in the plot:
> 
> # -*- coding: utf-8 -*-
> 
> import matplotlib.pyplot as plt
> plt.plot([1,2,3,4])
> 
> xlabel = r'öäüß°€'
> plt.xlabel(xlabel)
> plt.show()
> plt.savefig('asdf')
> 
> Would be interesting to know what's going on...

What font was used for the label?

    >>> plt.gca().xaxis.label.get_fontname()
    'Bitstream Vera Sans'

The usual default above has a limited character set.  You can select a font that has the characters you want using

    plt.xlabel(u'äöüß°€', fontdict={'family': 'Cambria'})

for a given bit of text or

    plt.rc('font', family='Cambria')

to make it the default.

Re: [Matplotlib-users] How to use UTF-8 for labels on Windows XP?

[Daniel M. <dan...@go...>]

Thanks Stan, you're 100% right! Usually I load a set of rcParams with
another font and that's why I don't have that problem:

## PNG output:
pylab.rcParams['text.usetex'] = False
## schöner sans-serif Font *ohne* LaTeX: 'stixsans'
pylab.rcParams['mathtext.fontset'] = 'stixsans'
## LaTeX-PDF output:
pylab.rcParams['text.usetex'] = True
pylab.rcParams['text.latex.unicode'] = True
pylab.rcParams['text.latex.preamble'] = [
    '\usepackage{lmodern}',
    '\usepackage[T1]{fontenc}',
    '\usepackage{sfmath}',
    '\usepackage{gensymb}',
    '\usepackage{amsmath}',
]

Thanks a lot for clarification!

2011/6/9 Stan West <sta...@nr...>:
>> From: Daniel Mader [mailto:dan...@go...]
>> Sent: Thursday, June 09, 2011 11:59
>>
>> Hi,
>>
>> I just noticed this doesn't work here, too, as I expected :(
>>
>> with u'äöüß°€' I can print the string, but the labels are still broken
>> in the plot:
>>
>> # -*- coding: utf-8 -*-
>>
>> import matplotlib.pyplot as plt
>> plt.plot([1,2,3,4])
>>
>> xlabel = r'öäüß°€'
>> plt.xlabel(xlabel)
>> plt.show()
>> plt.savefig('asdf')
>>
>> Would be interesting to know what's going on...
>
> What font was used for the label?
>
>    >>> plt.gca().xaxis.label.get_fontname()
>    'Bitstream Vera Sans'
>
> The usual default above has a limited character set.  You can select a font that has the characters you want using
>
>    plt.xlabel(u'äöüß°€', fontdict={'family': 'Cambria'})
>
> for a given bit of text or
>
>    plt.rc('font', family='Cambria')
>
> to make it the default.
>
>