Re: [Matplotlib-users] Problem with savefig and usetex

2006-12-11 Thread Gary Ruben
I haven't tried it, but my guess is the '\' character is the problem.

 pylab.xlabel('10$^3$ M$_\odot$')

Try
pylab.xlabel(r'10$^3$ M$_\odot$')
  ^
  Add raw string marker.

or maybe
pylab.xlabel('10$^3$ M$_\\odot$')

Gary R.

Nicolas Champavert wrote:
 Hello,
 
   I have some problems when trying to save a figure with usetex=True. 
 Sometimes, it is not possible to save the figure when trying to put an 
 xlabel with LaTeX inside.
 It works with pylab.xlabel('M$_\odot$') but not with 
 pylab.xlabel('10$^3$ M$_\odot$') (see below). Do you know why ?



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Re: [Matplotlib-users] Problem with savefig and usetex

2006-12-11 Thread Nicolas Champavert
Steve Schmerler a écrit :
 Nicolas Champavert wrote:
   
 Hello,

   I have some problems when trying to save a figure with usetex=True. 
 Sometimes, it is not possible to save the figure when trying to put an 
 xlabel with LaTeX inside.
 It works with pylab.xlabel('M$_\odot$') but not with 
 pylab.xlabel('10$^3$ M$_\odot$') (see below). Do you know why ?

 


 Works fine here, with and w/o raw strings.

 In [75]: rcParams['text.usetex']=True

 In [76]: plot([1,2,3])
 Out[76]: [matplotlib.lines.Line2D instance at 0xa0db754c]

 In [77]: xlabel('10$^3$ M$_\odot$')
 Out[77]: matplotlib.text.Text instance at 0xa0daea2c

 In [78]: savefig('test.eps')

 In [79]: matplotlib.__version__
 Out[79]: '0.87.7'

 In [80]: matplotlib.__revision__
 Out[80]: '$Revision: 2835 $'


 Maybe you need to upgrade, but that's just a guess.
   
I had matplotlib revision 2835. I made an upgrade. Now I have revision 2905.
I still have problem but it is very strange:
- when I plot [0,1] with xlabel(r'(10$^3$ M$_\odot$)'), it works.
- when I plot [1,2] with xlabel(r'Upper mass for the IMF (10$^3$ 
M$_\odot$)'), it works.
- but it doesn't work if I plot [0,1] with xlabel(r'Upper mass for the 
IMF (10$^3$ M$_\odot$)')...


In [1]:import matplotlib

In [2]:import pylab

In [3]:matplotlib.__version__
Out[3]:'0.87.7'

In [4]:matplotlib.__revision__
Out[4]:'$Revision: 2905 $'

In [5]:matplotlib.rc('text',usetex=True)

In [6]:pylab.plot([0,1])
Out[6]:[matplotlib.lines.Line2D instance at 0xb67b7e4c]

In [7]:pylab.xlabel(r'(10$^3$ M$_\odot$)')
Out[7]:matplotlib.text.Text instance at 0xb691762c

In [8]:pylab.savefig('toto1.eps')

In [9]:pylab.close()

In [10]:pylab.plot([1,2])
Out[10]:[matplotlib.lines.Line2D instance at 0xb67d7fec]

In [11]:pylab.xlabel(r'Upper mass for the IMF (10$^3$ M$_\odot$)')
Out[11]:matplotlib.text.Text instance at 0xb67d0c6c

In [12]:pylab.savefig('toto2.eps')

In [13]:pylab.close()

In [14]:pylab.plot([0,1])
Out[14]:[matplotlib.lines.Line2D instance at 0xb67f078c]

In [15]:pylab.xlabel(r'Upper mass for the IMF (10$^3$ M$_\odot$)')
Out[15]:matplotlib.text.Text instance at 0xb63413ac

In [16]:pylab.savefig('toto3.eps')
sh: line 1: 19756 Erreur de segmentation  gs -dBATCH -dNOPAUSE -r6000 
-sDEVICE=pswrite -sPAPERSIZE=letter 
-sOutputFile=/tmp/11701f1f88db8c691a0ca6ac520c7706.ps 
/tmp/11701f1f88db8c691a0ca6ac520c7706 
 /tmp/11701f1f88db8c691a0ca6ac520c7706.output
---
exceptions.RuntimeError  Traceback (most 
recent call last)

/home/champavert/ipython console

/usr/local/lib/python2.4/site-packages/matplotlib/pylab.py in 
savefig(*args, **kwargs)
811 def savefig(*args, **kwargs):
812 fig = gcf()
-- 813 return fig.savefig(*args, **kwargs)
814 if Figure.savefig.__doc__ is not None:
815 savefig.__doc__ = _shift_string(Figure.savefig.__doc__)

/usr/local/lib/python2.4/site-packages/matplotlib/figure.py in 
savefig(self, *args, **kwargs)
685 kwargs[key] = rcParams['savefig.%s'%key]
686
-- 687 self.canvas.print_figure(*args, **kwargs)
688
689 def colorbar(self, mappable, cax=None, **kw):

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_tkagg.py 
in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, 
**kwargs)
184 if dpi is None: dpi = rcParams['savefig.dpi']
185 agg = self.switch_backends(FigureCanvasAgg)
-- 186 agg.print_figure(filename, dpi, facecolor, edgecolor, 
orientation,
187  **kwargs)
188 self.figure.set_canvas(self)

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_agg.py 
in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, 
**kwargs)
486 ps = self.switch_backends(FigureCanvasPS)
487 ps.print_figure(filename, dpi, facecolor, edgecolor,
-- 488 orientation, **kwargs)
489 elif ext.find('pdf')=0:
490 from backend_pdf import FigureCanvasPdf

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_ps.py 
in print_figure(self, outfile, dpi, facecolor, edgecolor, orientation, 
papertype)
   1009 # Let's keep the usetex stuff seperate from the 
generic postscript
   1010 self._print_figure_tex(outfile, dpi, facecolor, 
edgecolor,
- 1011orientation, papertype)
   1012 else:
   1013 if  isinstance(outfile, file):

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_ps.py 
in _print_figure_tex(self, outfile, dpi, facecolor, edgecolor, 
orientation, papertype)
   1243 elif rcParams['text.usetex']:
   1244 if False: pass # for debugging
- 1245 else: gs_distill(tmpfile, ext=='.eps', 
ptype=papertype, bbox=bbox)
   1246
   1247 if  isinstance(outfile, file):


Re: [Matplotlib-users] Problem with savefig and usetex

2006-12-11 Thread Nicolas Champavert
No the '\' is not the problem. \odot is a LaTeX command. I still have 
the problem if I don't use it (see below with only pylab.xlabel(r'Upper 
mass for the IMF (10$^3$)')) and \\odot writes 'odot' and doesn't write 
the 'odot' symbol.


Gary Ruben a écrit :
 I haven't tried it, but my guess is the '\' character is the problem.

  pylab.xlabel('10$^3$ M$_\odot$')

 Try
 pylab.xlabel(r'10$^3$ M$_\odot$')
  ^
  Add raw string marker.

 or maybe
 pylab.xlabel('10$^3$ M$_\\odot$')

 Gary R.

 Nicolas Champavert wrote:
 Hello,

   I have some problems when trying to save a figure with usetex=True. 
 Sometimes, it is not possible to save the figure when trying to put 
 an xlabel with LaTeX inside.
 It works with pylab.xlabel('M$_\odot$') but not with 
 pylab.xlabel('10$^3$ M$_\odot$') (see below). Do you know why ?


In [1]:import matplotlib

In [2]:import pylab

In [3]:matplotlib.__version__
Out[3]:'0.87.7'

In [4]:matplotlib.__revision__
Out[4]:'$Revision: 2905 $'

In [5]:matplotlib.rc('text',usetex=True)

In [6]:pylab.plot([0,1])
Out[6]:[matplotlib.lines.Line2D instance at 0xb67dde4c]

In [7]:pylab.xlabel(r'Upper mass for the IMF (10$^3$)')
Out[7]:matplotlib.text.Text instance at 0xb693d62c

In [8]:pylab.savefig('test.eps')
sh: line 1: 19944 Erreur de segmentation  gs -dBATCH -dNOPAUSE -r6000 
-sDEVICE=pswrite -sPAPERSIZE=letter 
-sOutputFile=/tmp/098f6bcd4621d373cade4e832627b4f6.ps 
/tmp/098f6bcd4621d373cade4e832627b4f6 
 /tmp/098f6bcd4621d373cade4e832627b4f6.output
---
exceptions.RuntimeError  Traceback (most 
recent call last)

/home/champavert/ipython console

/usr/local/lib/python2.4/site-packages/matplotlib/pylab.py in 
savefig(*args, **kwargs)
811 def savefig(*args, **kwargs):
812 fig = gcf()
-- 813 return fig.savefig(*args, **kwargs)
814 if Figure.savefig.__doc__ is not None:
815 savefig.__doc__ = _shift_string(Figure.savefig.__doc__)

/usr/local/lib/python2.4/site-packages/matplotlib/figure.py in 
savefig(self, *args, **kwargs)
685 kwargs[key] = rcParams['savefig.%s'%key]
686
-- 687 self.canvas.print_figure(*args, **kwargs)
688
689 def colorbar(self, mappable, cax=None, **kw):

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_tkagg.py 
in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, 
**kwargs)
184 if dpi is None: dpi = rcParams['savefig.dpi']
185 agg = self.switch_backends(FigureCanvasAgg)
-- 186 agg.print_figure(filename, dpi, facecolor, edgecolor, 
orientation,
187  **kwargs)
188 self.figure.set_canvas(self)

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_agg.py 
in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, 
**kwargs)
486 ps = self.switch_backends(FigureCanvasPS)
487 ps.print_figure(filename, dpi, facecolor, edgecolor,
-- 488 orientation, **kwargs)
489 elif ext.find('pdf')=0:
490 from backend_pdf import FigureCanvasPdf

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_ps.py 
in print_figure(self, outfile, dpi, facecolor, edgecolor, orientation, 
papertype)
   1009 # Let's keep the usetex stuff seperate from the 
generic postscript
   1010 self._print_figure_tex(outfile, dpi, facecolor, 
edgecolor,
- 1011orientation, papertype)
   1012 else:
   1013 if  isinstance(outfile, file):

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_ps.py 
in _print_figure_tex(self, outfile, dpi, facecolor, edgecolor, 
orientation, papertype)
   1243 elif rcParams['text.usetex']:
   1244 if False: pass # for debugging
- 1245 else: gs_distill(tmpfile, ext=='.eps', 
ptype=papertype, bbox=bbox)
   1246
   1247 if  isinstance(outfile, file):

/usr/local/lib/python2.4/site-packages/matplotlib/backends/backend_ps.py 
in gs_distill(tmpfile, eps, ptype, bbox)
   1341 exit_status = os.system(command)
   1342 fh = file(outfile)
- 1343 if exit_status: raise RuntimeError('ghostscript was not able 
to process \
   1344 your image.\nHere is the full report generated by 
ghostscript:\n\n' + fh.read())
   1345 else: verbose.report(fh.read(), 'debug')

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

ESP Ghostscript 8.15 (2006-04-19)
Copyright (C) 2004 artofcode LLC, Benicia, CA.  All rights reserved.
This software comes with NO WARRANTY: see the file COPYING for details.

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Re: [Matplotlib-users] Problem with savefig and usetex

2006-12-11 Thread Steve Schmerler
Darren Dale wrote:
 On Monday 11 December 2006 09:59, Nicolas Champavert wrote:
 Steve Schmerler a écrit :
 Nicolas Champavert wrote:
 Hello,

   I have some problems when trying to save a figure with usetex=True.
 Sometimes, it is not possible to save the figure when trying to put an
 xlabel with LaTeX inside.
 It works with pylab.xlabel('M$_\odot$') but not with
 pylab.xlabel('10$^3$ M$_\odot$') (see below). Do you know why ?
 Works fine here, with and w/o raw strings.
 [...]
 I had matplotlib revision 2835. I made an upgrade. Now I have revision
 2905. I still have problem but it is very strange:
 - when I plot [0,1] with xlabel(r'(10$^3$ M$_\odot$)'), it works.
 - when I plot [1,2] with xlabel(r'Upper mass for the IMF (10$^3$
 M$_\odot$)'), it works.
 - but it doesn't work if I plot [0,1] with xlabel(r'Upper mass for the
 IMF (10$^3$ M$_\odot$)')...
 
 It sounds like an issue with one of the dependencies, probably ghostscript. I 
 have matplotlib-0.87.7, svn revision 2905, and gpl-ghostscript-8.54. I can 
 not reproduce the problem here.
 

I seem to be running ESP Ghostscript 8.15.3 (this is what 'gs --version' 
and 'apt-cache show gs' tell me). All the examples work fine here ...

-- 
cheers,
steve

Random number generation is the art of producing pure gibberish as 
quickly as possible.

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Re: [Matplotlib-users] Problem with savefig and usetex

2006-12-11 Thread Nicolas Champavert
Steve Schmerler a écrit :
 Darren Dale wrote:
   
 On Monday 11 December 2006 09:59, Nicolas Champavert wrote:
 
 Steve Schmerler a écrit :
   
 Nicolas Champavert wrote:
 
 Hello,

   I have some problems when trying to save a figure with usetex=True.
 Sometimes, it is not possible to save the figure when trying to put an
 xlabel with LaTeX inside.
 It works with pylab.xlabel('M$_\odot$') but not with
 pylab.xlabel('10$^3$ M$_\odot$') (see below). Do you know why ?
   
 Works fine here, with and w/o raw strings.
 
 [...]
 
 I had matplotlib revision 2835. I made an upgrade. Now I have revision
 2905. I still have problem but it is very strange:
 - when I plot [0,1] with xlabel(r'(10$^3$ M$_\odot$)'), it works.
 - when I plot [1,2] with xlabel(r'Upper mass for the IMF (10$^3$
 M$_\odot$)'), it works.
 - but it doesn't work if I plot [0,1] with xlabel(r'Upper mass for the
 IMF (10$^3$ M$_\odot$)')...
   
 It sounds like an issue with one of the dependencies, probably ghostscript. 
 I 
 have matplotlib-0.87.7, svn revision 2905, and gpl-ghostscript-8.54. I can 
 not reproduce the problem here.

 

 I seem to be running ESP Ghostscript 8.15.3 (this is what 'gs --version' 
 and 'apt-cache show gs' tell me). All the examples work fine here ...

   
I had Ghostscript 8.15.3 too. I have made an update to ghostscript 8.54 
and now it works.

Nicolas

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