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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