Re: [Matplotlib-users] Save eps ghostscript error

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Thanks for looking at this. I upgraded to 99.1.1 (although the tar file 
was named 99.1.2) and I got the same error message. When I played with 
the ps.usedistiller option I found it only doesn't work when I set 
ps.usedistiller to xpdf. With False or ghostscript it works ok but gives 
me output with different page sizes. AFAIK xpdf is the way to go for 
publication quality graphics. Do you know how I can get it to work? Is 
it worth trying the svn version?

Thanks,
John.

Jae-Joon Lee wrote:
> You code works okay with the current svn.
> 
> See if changing the distiller option makes any difference
> ("ps.usedistiller" in the rc file).
> 
> The best would be for you to upgrade to the recent release of
> matplotlib if possible.
> 
> Regards,
> 
> -JJ
> 
> 
> On Mon, Jan 11, 2010 at 8:35 AM, John Reid <j....@ma...> wrote:
>> Hi,
>>
>> I'm using matplotlib 0.98.5.2 on Ubuntu with Ghostscript 8.70. The
>> following code produces the following error. Can anyone verify whether
>> this a problem with my installation or with matplotlib?
>>
>> import pylab as P
>> P.figure()
>> width=.4
>> x1 = [-0.4,  0.6,  1.6,  2.6,  3.6,  4.6,  5.6]
>> y1 = [1.0, 0.96875, 0.77584381616639686, 0.54678532728659146,
>> 0.4043846450263317, 0.28361561411668612, 1.0]
>> x2 = [0, 1, 2, 3, 4, 5, 6]
>> y2 = [1.0, 0.97032301818547173, 0.77110383361936519,
>> 0.54221305796207875, 0.40019201884735922, 0.28326596333427007, 1.0]
>> P.bar(x1, y1, color='blue' , width=width, label='nodes')
>> P.bar(x2, y2, color='green', width=width, label='occurrences')
>> P.savefig('fraction-evaluated.eps')
>> P.close()
>>
>>
>>
>>
>> /home/john/Dev/MyProjects/Bio/MotifSearch/python/stem.py in <module>()
>>     246 P.bar(x1, y1, color='blue' , width=width, label='nodes')
>>     247 P.bar(x2, y2, color='green', width=width, label='occurrences')
>> --> 248 P.savefig('fraction-evaluated.eps')
>>     249 P.close()
>>     250 raise
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/pyplot.pyc
>> in savefig(*args, **kwargs)
>>     343 def savefig(*args, **kwargs):
>>     344     fig = gcf()
>> --> 345     return fig.savefig(*args, **kwargs)
>>     346 if Figure.savefig.__doc__ is not None:
>>     347     savefig.__doc__ = dedent(Figure.savefig.__doc__)
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/figure.pyc
>> in savefig(self, *args, **kwargs)
>>     988                 patch.set_alpha(0.0)
>>     989
>> --> 990         self.canvas.print_figure(*args, **kwargs)
>>     991
>>     992         if transparent:
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backends/backend_wxagg.pyc
>> in print_figure(self, filename, *args, **kwargs)
>>      99     def print_figure(self, filename, *args, **kwargs):
>>     100         # Use pure Agg renderer to draw
>> --> 101         FigureCanvasAgg.print_figure(self, filename, *args,
>> **kwargs)
>>     102         # Restore the current view; this is needed because the
>>     103         # artist contains methods rely on particular attributes
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backend_bases.pyc
>> in print_figure(self, filename, dpi, facecolor, edgecolor, orientation,
>> format, **kwargs)
>>    1417                 edgecolor=edgecolor,
>>    1418                 orientation=orientation,
>> -> 1419                 **kwargs)
>>    1420         finally:
>>    1421             self.figure.dpi = origDPI
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backend_bases.pyc
>> in print_eps(self, *args, **kwargs)
>>    1306         from backends.backend_ps import FigureCanvasPS # lazy
>> import
>>    1307         ps = self.switch_backends(FigureCanvasPS)
>> -> 1308         return ps.print_eps(*args, **kwargs)
>>    1309
>>    1310     def print_pdf(self, *args, **kwargs):
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backends/backend_ps.pyc
>> in print_eps(self, outfile, *args, **kwargs)
>>     867
>>     868     def print_eps(self, outfile, *args, **kwargs):
>> --> 869         return self._print_ps(outfile, 'eps', *args, **kwargs)
>>     870
>>     871     def _print_ps(self, outfile, format, *args, **kwargs):
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backends/backend_ps.pyc
>> in _print_ps(self, outfile, format, *args, **kwargs)
>>     893         else:
>>     894             self._print_figure(outfile, format, imagedpi,
>> facecolor, edgecolor,
>> --> 895                                orientation, isLandscape, papertype)
>>     896
>>     897     def _print_figure(self, outfile, format, dpi=72,
>> facecolor='w', edgecolor='w',
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backends/backend_ps.pyc
>> in _print_figure(self, outfile, format, dpi, facecolor, edgecolor,
>> orientation, isLandscape, papertype)
>>    1036             gs_distill(tmpfile, isEPSF, ptype=papertype, bbox=bbox)
>>    1037         elif rcParams['ps.usedistiller'] == 'xpdf':
>> -> 1038             xpdf_distill(tmpfile, isEPSF, ptype=papertype,
>> bbox=bbox)
>>    1039
>>    1040         if passed_in_file_object:
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backends/backend_ps.pyc
>> in xpdf_distill(tmpfile, eps, ptype, bbox)
>>    1311     shutil.move(psfile, tmpfile)
>>    1312     if eps:
>> -> 1313         pstoeps(tmpfile, bbox)
>>    1314     for fname in glob.glob(tmpfile+'.*'):
>>    1315         os.remove(fname)
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backends/backend_ps.pyc
>> in pstoeps(tmpfile, bbox)
>>    1362     Convert the postscript to encapsulated postscript.
>>    1363     """
>> -> 1364     bbox_info = get_bbox(tmpfile, bbox)
>>    1365
>>    1366     epsfile = tmpfile + '.eps'
>>
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backends/backend_ps.pyc
>> in get_bbox(tmpfile, bbox)
>>    1336     else:
>>    1337         raise RuntimeError('Ghostscript was not able to extract
>> a bounding box.\
>> -> 1338 Here is the Ghostscript output:\n\n%s'% bbox_info)
>>    1339     l, b, r, t = [float(i) for i in bbox_info.split()[-4:]]
>>    1340
>>
>> RuntimeError: Ghostscript was not able to extract a bounding box.Here is
>> the Ghostscript output:
>>
>> GPL Ghostscript 8.70: Unrecoverable error, exit code 1
>>
>>  >
>> /usr/lib/python2.5/site-packages/matplotlib-0.98.5.2-py2.5-linux-x86_64.egg/matplotlib/backends/backend_ps.py(1338)get_bbox()
>>    1337         raise RuntimeError('Ghostscript was not able to extract
>> a bounding box.\
>> -> 1338 Here is the Ghostscript output:\n\n%s'% bbox_info)
>>    1339     l, b, r, t = [float(i) for i in bbox_info.split()[-4:]]
>>
>>
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