Problem generating postscript

Hi again

regarding my last post, I still have pb generating simple eps files.
Now I turned on "usetex" to True and I get the message given below. If
anyone can help me with this, it would be great since I am now stuck
with this.

Reminder: the pb occurs when I save a figure (savefig) in postscript
format (.eps), after plotting a number of small thumbnail images (using
pcolormesh and contour).

cheers

Eric

···

=======================================================================
GPL Ghostscript 8.64: Unrecoverable error, exit code 1
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call last)

/home/science/ATLAS3D/python/Analysis/show_maps.py in <module>()
----> 1
      2
      3
      4
      5

/usr/lib64/python2.6/site-packages/matplotlib/pyplot.pyc in
savefig(*args, **kwargs)
    354 def savefig(*args, **kwargs):

    355 fig = gcf()

--> 356 return fig.savefig(*args, **kwargs)

    357 if Figure.savefig.__doc__ is not None:

    358 savefig.__doc__ = dedent(Figure.savefig.__doc__)

/usr/lib64/python2.6/site-packages/matplotlib/figure.pyc in
savefig(self, *args, **kwargs)
   1030 patch.set_alpha(0.0)

   1031

-> 1032 self.canvas.print_figure(*args, **kwargs)

   1033

   1034 if transparent:

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_wxagg.pyc
in print_figure(self, filename, *args, **kwargs)
     98 def print_figure(self, filename, *args, **kwargs):

     99 # Use pure Agg renderer to draw

--> 100 FigureCanvasAgg.print_figure(self, filename, *args,
**kwargs)
    101 # Restore the current view; this is needed because the

    102 # artist contains methods rely on particular attributes

/usr/lib64/python2.6/site-packages/matplotlib/backend_bases.pyc in
print_figure(self, filename, dpi, facecolor, edgecolor, orientation,
format, **kwargs)
   1474 orientation=orientation,

   1475 bbox_inches_restore=_bbox_inches_restore,

-> 1476 **kwargs)

   1477 finally:

   1478 if bbox_inches and restore_bbox:

/usr/lib64/python2.6/site-packages/matplotlib/backend_bases.pyc in
print_eps(self, *args, **kwargs)
   1327 from backends.backend_ps import FigureCanvasPS # lazy
import
   1328 ps = self.switch_backends(FigureCanvasPS)

-> 1329 return ps.print_eps(*args, **kwargs)

   1330

   1331 def print_pdf(self, *args, **kwargs):

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_ps.pyc in
print_eps(self, outfile, *args, **kwargs)
    853

    854 def print_eps(self, outfile, *args, **kwargs):

--> 855 return self._print_ps(outfile, 'eps', *args, **kwargs)

    856

    857

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_ps.pyc in
_print_ps(self, outfile, format, *args, **kwargs)
    882 self._print_figure_tex(outfile, format, imagedpi,
facecolor, edgecolor,
    883 orientation, isLandscape,
papertype,
--> 884 **kwargs)

    885 else:

    886 self._print_figure(outfile, format, imagedpi,
facecolor, edgecolor,

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_ps.pyc in
_print_figure_tex(self, outfile, format, dpi, facecolor, edgecolor,
orientation, isLandscape, papertype, **kwargs)

   1191 elif rcParams['text.usetex']:

   1192 if False: pass # for debugging

-> 1193 else: gs_distill(tmpfile, isEPSF, ptype=papertype,
bbox=bbox)

   1194

   1195 if isinstance(outfile, file):

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_ps.pyc in
gs_distill(tmpfile, eps, ptype, bbox)
   1311 fh = file(outfile)

   1312 if exit_status: raise RuntimeError('ghostscript was not able
to process \
-> 1313 your image.\nHere is the full report generated by
ghostscript:\n\n' + fh.read())
   1314 else: verbose.report(fh.read(), 'debug')

   1315 fh.close()

RuntimeError: ghostscript was not able to process your image.
Here is the full report generated by ghostscript:

GPL Ghostscript 8.64 (2009-02-03)
Copyright (C) 2009 Artifex Software, Inc. All rights reserved.
This software comes with NO WARRANTY: see the file COPYING for details.
Loading NimbusSanL-Regu font from
/usr/share/ghostscript/8.64/Resource/Font/NimbusSanL-Regu... 3968216
1927802 6785440 4864692 1 done.
Loading CenturySchL-Roma font from
/usr/share/ghostscript/8.64/Resource/Font/CenturySchL-Roma... 4008424
2092670 6785440 4877110 1 done.
Error: /limitcheck in --def--
Operand stack:
   p1c_37d --nostringval--
Execution stack:
   %interp_exit .runexec2 --nostringval-- --nostringval--
--nostringval-- 2 %stopped_push --nostringval-- --nostringval--
  --nostringval-- false 1 %stopped_push 1878 1 3
%oparray_pop 1877 1 3 %oparray_pop 1861 1 3 %oparray_pop
  1755 1 3 %oparray_pop --nostringval-- %errorexec_pop
.runexec2 --nostringval-- --nostringval-- --nostringval-- 2
%stopped_push --nostringval--
Dictionary stack:
   --dict:1169/3371(ro)(G)-- --dict:1/20(G)-- --dict:74/200(L)--
--dict:5/6(ro)(L)-- --dict:176/300(L)-- --dict:44/200(L)--
--dict:65534/65534(L)--
Current allocation mode is local
Last OS error: 2
Current file position is 14089308

This is a kind of bug that is quite hard to trace unless we can
reproduce the error.

As far as I know, there has been a report that matplotlib does not
work well with GPL Ghostscript 8.63. And I'm not sure if it is
related.

http://old.nabble.com/Segmentation-fault-with-EPS-output-on-matplotlib->%3D0.98.5.2-to25257581.html#a25334270

So, see if using "xpdf" as a distiller works.

Regards,

-JJ

···

On Wed, Dec 30, 2009 at 9:39 AM, Eric Emsellem <eemselle@...513...> wrote:

Hi again

regarding my last post, I still have pb generating simple eps files.
Now I turned on "usetex" to True and I get the message given below. If
anyone can help me with this, it would be great since I am now stuck
with this.

Reminder: the pb occurs when I save a figure (savefig) in postscript
format (.eps), after plotting a number of small thumbnail images (using
pcolormesh and contour).

cheers

Eric

GPL Ghostscript 8.64: Unrecoverable error, exit code 1
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call last)

/home/science/ATLAS3D/python/Analysis/show_maps.py in <module>()
----> 1
2
3
4
5

/usr/lib64/python2.6/site-packages/matplotlib/pyplot.pyc in
savefig(*args, **kwargs)
354 def savefig(*args, **kwargs):

355 fig = gcf()

--> 356 return fig.savefig(*args, **kwargs)

357 if Figure.savefig.__doc__ is not None:

358 savefig.__doc__ = dedent(Figure.savefig.__doc__)

/usr/lib64/python2.6/site-packages/matplotlib/figure.pyc in
savefig(self, *args, **kwargs)
1030 patch.set_alpha(0.0)

1031

-> 1032 self.canvas.print_figure(*args, **kwargs)

1033

1034 if transparent:

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_wxagg.pyc
in print_figure(self, filename, *args, **kwargs)
98 def print_figure(self, filename, *args, **kwargs):

99         \# Use pure Agg renderer to draw

--> 100 FigureCanvasAgg.print_figure(self, filename, *args,
**kwargs)
101 # Restore the current view; this is needed because the

102 # artist contains methods rely on particular attributes

/usr/lib64/python2.6/site-packages/matplotlib/backend_bases.pyc in
print_figure(self, filename, dpi, facecolor, edgecolor, orientation,
format, **kwargs)
1474 orientation=orientation,

1475 bbox_inches_restore=_bbox_inches_restore,

-> 1476 **kwargs)

1477 finally:

1478 if bbox_inches and restore_bbox:

/usr/lib64/python2.6/site-packages/matplotlib/backend_bases.pyc in
print_eps(self, *args, **kwargs)
1327 from backends.backend_ps import FigureCanvasPS # lazy
import
1328 ps = self.switch_backends(FigureCanvasPS)

-> 1329 return ps.print_eps(*args, **kwargs)

1330

1331 def print_pdf(self, *args, **kwargs):

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_ps.pyc in
print_eps(self, outfile, *args, **kwargs)
853

854 def print_eps(self, outfile, *args, **kwargs):

--> 855 return self._print_ps(outfile, 'eps', *args, **kwargs)

856

857

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_ps.pyc in
_print_ps(self, outfile, format, *args, **kwargs)
882 self._print_figure_tex(outfile, format, imagedpi,
facecolor, edgecolor,
883 orientation, isLandscape,
papertype,
--> 884 **kwargs)

885 else:

886 self._print_figure(outfile, format, imagedpi,
facecolor, edgecolor,

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_ps.pyc in
_print_figure_tex(self, outfile, format, dpi, facecolor, edgecolor,
orientation, isLandscape, papertype, **kwargs)

1191 elif rcParams['text.usetex']:

1192 if False: pass # for debugging

-> 1193 else: gs_distill(tmpfile, isEPSF, ptype=papertype,
bbox=bbox)

1194

1195 if isinstance(outfile, file):

/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_ps.pyc in
gs_distill(tmpfile, eps, ptype, bbox)
1311 fh = file(outfile)

1312 if exit_status: raise RuntimeError('ghostscript was not able
to process \
-> 1313 your image.\nHere is the full report generated by
ghostscript:\n\n' + fh.read())
1314 else: verbose.report(fh.read(), 'debug')

1315 fh.close()

RuntimeError: ghostscript was not able to process your image.
Here is the full report generated by ghostscript:

GPL Ghostscript 8.64 (2009-02-03)
Copyright (C) 2009 Artifex Software, Inc. All rights reserved.
This software comes with NO WARRANTY: see the file COPYING for details.
Loading NimbusSanL-Regu font from
/usr/share/ghostscript/8.64/Resource/Font/NimbusSanL-Regu... 3968216
1927802 6785440 4864692 1 done.
Loading CenturySchL-Roma font from
/usr/share/ghostscript/8.64/Resource/Font/CenturySchL-Roma... 4008424
2092670 6785440 4877110 1 done.
Error: /limitcheck in --def--
Operand stack:
p1c_37d --nostringval--
Execution stack:
%interp_exit .runexec2 --nostringval-- --nostringval--
--nostringval-- 2 %stopped_push --nostringval-- --nostringval--
--nostringval-- false 1 %stopped_push 1878 1 3
%oparray_pop 1877 1 3 %oparray_pop 1861 1 3 %oparray_pop
1755 1 3 %oparray_pop --nostringval-- %errorexec_pop
.runexec2 --nostringval-- --nostringval-- --nostringval-- 2
%stopped_push --nostringval--
Dictionary stack:
--dict:1169/3371(ro)(G)-- --dict:1/20(G)-- --dict:74/200(L)--
--dict:5/6(ro)(L)-- --dict:176/300(L)-- --dict:44/200(L)--
--dict:65534/65534(L)--
Current allocation mode is local
Last OS error: 2
Current file position is 14089308

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Hi
thanks a lot for the quick tip. But no xpdf does not do it (I had tried it).

Just to be consistent below is an account of my config (may not help
much). I'll tried to write some simple script to reproduce the bug and
post it but I am afraid this won't be very simple on my side.

cheers
Eric

···

==========================================
# OS is OpenSuse 11.2 with KDE, 64b laptop

matplotlib version 0.99.1.1
verbose.level helpful
interactive is False
units is False
platform is linux2
backend WXAgg version 2.8.10.1
Python 2.6.2 (r262:71600, Oct 24 2009, 03:15:21)
IPython 0.10 -- An enhanced Interactive Python.

# And in my matplotlibrc:
usetex False
## tried usetex True too
ps.papersize : A4
ps.useafm : False
ps.usedistiller : None
## I tried all possible distiller... didn't change the pb.
ps.distiller.res : 120 # dpi
ps.fonttype : 3

On 30/12/09 20:35, Jae-Joon Lee wrote:

This is a kind of bug that is quite hard to trace unless we can
reproduce the error.

As far as I know, there has been a report that matplotlib does not
work well with GPL Ghostscript 8.63. And I'm not sure if it is
related.

http://old.nabble.com/Segmentation-fault-with-EPS-output-on-matplotlib->%3D0.98.5.2-to25257581.html#a25334270

So, see if using "xpdf" as a distiller works.

--

Eric Emsellem European Southern Observatory
                                        Karl-Schwarzschild Str. 2
e-mail: eemselle@...513... 85748 Garching bei Muenchen
tel: +49 (0)89 3200 6914 Germany
fax: +49 (0)89 3200 6480