Re: [Matplotlib-users] Segmentation fault with EPS output on matplotlib >=0.98.5.2

[Jae-Joon L. <lee...@gm...>]

I cannot reproduce this error.
And I'm not sure if this is a bug in matplotlib or ghostscript.
You may try to use different distiller.

pl.rc('ps', usedistiller="xpdf")

In my machine, both ghostscript and xpdf option works fine.
But my gs version is different than yours

GPL Ghostscript 8.61 (2007-11-21)

If the xpdf option woks, I think it is more likely that this is a bug in gs.

Regards,

-JJ


On Wed, Sep 2, 2009 at 9:22 AM, Ewald Zietsman<ewa...@gm...> wrote:
> Hi All,
>
> I'm trying to make a simple errorbar plot which gets saved to an EPS file. I
> paste the code below. For some weird reason, the savefig line causes a
> segmentation fault in ghostscript. when I use (in this case, on my computer)
> 206 points or more. It doesn't happen if I comment the "pl.rc('text',
> usetex=True)" line out nor does it happen if I comment the pl.savefig line
> out. This happens in matplotlib 0.99 and 0.98.5.2. Any help will be greatly
> appreciated.
>
>
> Regards,
>
> Ewald Zietsman
>
> #test.py
>
> import matplotlib.pyplot as pl
> import numpy as np
>
> pl.rc('text', usetex=True)
> pl.rc('font', family='serif')
>
> N = 206
> x1 = np.linspace(-10,10,N)
> e1 = np.random.randn(N)
>
> pl.errorbar(x1, x1, yerr=e1, fmt='k.')
> pl.savefig('test.eps')
> pl.show()
>
>
> The error message:
>
>  python test.py
> Segmentation fault
> Traceback (most recent call last):
>   File "test.py", line 16, in <module>
>     pl.savefig('test.eps')
>   File "/usr/lib/python2.5/site-packages/matplotlib/pyplot.py", line 345, in
> savefig
>     return fig.savefig(*args, **kwargs)
>   File "/usr/lib/python2.5/site-packages/matplotlib/figure.py", line 990, in
> savefig
>     self.canvas.print_figure(*args, **kwargs)
>   File "/usr/lib/python2.5/site-packages/matplotlib/backend_bases.py", line
> 1419, in print_figure
>     **kwargs)
>   File "/usr/lib/python2.5/site-packages/matplotlib/backend_bases.py", line
> 1308, in print_eps
>     return ps.print_eps(*args, **kwargs)
>   File "/usr/lib/python2.5/site-packages/matplotlib/backends/backend_ps.py",
> line 869, in print_eps
>     return self._print_ps(outfile, 'eps', *args, **kwargs)
>   File "/usr/lib/python2.5/site-packages/matplotlib/backends/backend_ps.py",
> line 892, in _print_ps
>     orientation, isLandscape, papertype)
>   File "/usr/lib/python2.5/site-packages/matplotlib/backends/backend_ps.py",
> line 1148, in _print_figure_tex
>     else: gs_distill(tmpfile, isEPSF, ptype=papertype, bbox=bbox)
>   File "/usr/lib/python2.5/site-packages/matplotlib/backends/backend_ps.py",
> line 1268, in gs_distill
>     your image.\nHere is the full report generated by ghostscript:\n\n' +
> fh.read())
> RuntimeError: ghostscript was not able to process your image.
> Here is the full report generated by ghostscript:
>
> GPL Ghostscript 8.63 (2008-08-01)
> Copyright (C) 2008 Artifex Software, Inc.  All rights reserved.
> This software comes with NO WARRANTY: see the file PUBLIC for details.
> Loading CenturySchL-Roma font from
> /var/lib/defoma/gs.d/dirs/fonts/c059013l.pfb... 3423696 1832182 6023256
> 4166010 1 done.
>
>
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