Thanks for the report. It's a bit convoluted, but it is automatable, at
least, and I'm glad to see it works for you.
I'd like to see a Cairo expert take on the task of upgrading our Cairo
backend to use Pango. That would make this a little cleaner and
theoretically fix the text alignment problem with your method (i.e. the
titles are not exactly centered since its width is based on a naive
rendering of the text). I have no concept of how much work that would
be. Though it's also possible that that would just run up against other
assumptions that matplotlib makes about text.
Cheers,
Mike
Mathieu Leplatre wrote:
> Thank you Michael and Darren.
>
> I'll keep your information for further polishing :
>
> So far, I am not having problems with my two-steps solution :
>
> 1) SVG backend
> 2) rsvg + Cairo, code snippet :
>
> svg = rsvg.Handle( filesvg )
> width = svg.props.width
> height = svg.props.height
> surface = cairo.ImageSurface (cairo.FORMAT_ARGB32, width, height)
> cr = cairo.Context (surface)
> svg.render_cairo (cr)
> surface.write_to_png (filepng)
>
> Thanks again for your assistance ! Long live sub-cultures and their
> exotic writings !
>
>
> 2008/6/25 Mathieu Leplatre <[EMAIL PROTECTED]>:
>
>> Well, I'll give a try towards another possibility :
>> 1 - use SVG output with rc setting : svg.embed_char_paths" to False
>> 2 - use cairo to export to PNG/JPG etc..
>>
>> Step 1 works great natively with Arabic (at least viewing it with Inkscape).
>> Let's see if I have problems with step 2.
>>
>> 2008/6/25 Darren Dale <[EMAIL PROTECTED]>:
>>
>>> Hi Mathieu,
>>>
>>> Are there perhaps some latex packages you could load using the
>>> text.latex.preamble rc setting? This setting is officially unsupported, but
>>> it would be much easier than adding an option to use the xetex executable
>>> (which would probably not be officially supported by mpl).
>>>
>>> Darren
>>>
>>> On Wednesday 25 June 2008 09:02:41 am Mathieu Leplatre wrote:
>>>
>>>> Hi all,
>>>>
>>>> I have been trying to follow your tips regarding matplotlib and arabic
>>>> support.
>>>>
>>>> Indeed matplotlib with Latex and unicode work great together :
>>>>
>>>> #-*- coding: utf-8 -*-
>>>> from pylab import *
>>>> from matplotlib import rcParams
>>>> rcParams['text.usetex']=True
>>>> rcParams['text.latex.unicode']=True
>>>> figure(1)
>>>> plot([1,2,3])
>>>> title(unicode(r'\textit{éèê}','utf8'))
>>>> show()
>>>>
>>>> But then I came to the conclusion that Latex did not support Arabic.
>>>> This few lines generate a "missing def" error.
>>>>
>>>> \documentclass{article}
>>>> \usepackage{ucs}
>>>> \usepackage[utf8x]{inputenc}
>>>> \title{éèê هه}
>>>> \begin{document}
>>>> \maketitle
>>>> \end{document}
>>>>
>>>> Is it related to my installation ? (Ubuntu with package
>>>> texlive-latex-recommended)
>>>> I asked here : http://ubuntuforums.org/showthread.php?p=5258457
>>>>
>>>> Somebody pointed me out XeTeX, which has wider support for Unicode.
>>>> www.tug.org/TUGboat/Articles/tb27-2/tb87kew.pdf
>>>>
>>>> I was wondering if there could be a way to get matplotlib work with XeTeX.
>>>>
>>>> What do you think ? Is it the right track ? Should I switch to
>>>> grandpa's gnuplot :) ?
>>>>
>>>> Thank you all,
>>>>
>>>> Mathieu.
>>>>
>>>> Michael Droettboom wrote:
>>>>
>>>>> Unfortunately, I believe this is a fundamental incompatibility within
>>>>> matplotlib. matplotlib uses a very simple algorithm for layout out a
>>>>> line of characters which assumes ltr order and all kinds of other things.
>>>>>
>>>>> That said, there is something you could try. Matplotlib has a "usetex"
>>>>> mode which will do all text rendering using LaTeX. Assuming you can get
>>>>> LaTeX to handle Arabic correctly, you can set the following in your
>>>>> .matplotlibrc file:
>>>>>
>>>>> text.usetex : True
>>>>> text.latex.unicode : True
>>>>>
>>>>> You'll need to install the LaTeX Unicode extension "ucs" (Ubuntu
>>>>> probably has packages for that.) If you need to load any LaTeX packages
>>>>> to get arabic support, you can tell matplotlib about them in your
>>>>> matplotlibrc like so:
>>>>>
>>>>> text.latex.preamble: \usepackage{foo}
>>>>>
>>>>> If Arabic-encoded-as-Unicode doesn't work, you could try setting
>>>>> "text.latex.unicode" to False, and then typing your Arabic strings using
>>>>> one of the other Arabic encodings that LaTeX understands.
>>>>>
>>>>> Please let us know if you have success or hit another roadblock.
>>>>>
>>>>> Cheers,
>>>>> Mike
>>>>>
>>>>> Burhan Khalid wrote:
>>>>>
>>>>>> Hello All:
>>>>>>
>>>>>> Having an issue with Arabic font support using matplotlib. When using
>>>>>> the correct font, Arabic characters are displayed, but are not joined
>>>>>> together
>>>>>> properly; and they are also not in the correct order (the font rendered
>>>>>> is ltr, but Arabic is a rtl language). Is this an issue with the render
>>>>>> I am using, or some incompatibility within matplotlib? Sample source
>>>>>> code used (please note, your email client should support utf8 to display
>>>>>> the code correctly).
>>>>>>
>>>>>> #-*- coding: utf-8 -*-
>>>>>> from pylab import *
>>>>>> figure(1) # the first figure
>>>>>> plot([1,2,3])
>>>>>> figure(1) # figure 1 current
>>>>>> title(u'برهان',name='Times New Roman') # figure 1 title
>>>>>> savefig('test.png')
>>>>>> savefig('test.eps')
>>>>>> show()
>>>>>>
>>>>>> Output when run from the command line:
>>>>>>
>>>>>> matplotlib data path /usr/share/matplotlib/mpl-data
>>>>>> $HOME=/home/burhan
>>>>>> CONFIGDIR=/home/burhan/.matplotlib
>>>>>> loaded rc file /etc/matplotlibrc
>>>>>> matplotlib version 0.90.1
>>>>>> verbose.level helpful
>>>>>> interactive is False
>>>>>> units is True
>>>>>> platform is linux2
>>>>>> numerix numpy 1.0.3
>>>>>> font search path ['/usr/share/matplotlib/mpl-data/fonts/ttf',
>>>>>> '/usr/share/matplotlib/mpl-data/fonts/afm']
>>>>>> loaded ttfcache file /home/burhan/.matplotlib/ttffont.cache
>>>>>> backend TkAgg version 8.4
>>>>>> Could not match Bitstream Vera Serif, New Century Schoolbook, Century
>>>>>> Schoolbook L, Utopia, ITC Bookman, Bookman, Nimbus Roman No9 L, Times
>>>>>> New Roman, Times, Palatino, Charter, serif, normal, normal. Returning
>>>>>> /usr/share/fonts/truetype/ttf-bitstream-vera/Vera.ttf
>>>>>>
>>>>>> This is on a clean Ubuntu Gutsy install, using python 2.5.1.
>>>>>>
>>>>>> Thanks,
>>>>>> Burhan
>>>>>>
>>>>>>
>>>>>>
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>>>>>>
>>>>> --
>>>>> Michael Droettboom
>>>>> Science Software Branch
>>>>> Operations and Engineering Division
>>>>> Space Telescope Science Institute
>>>>> Operated by AURA for NASA
>>>>>
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Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
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