EPS files with LaTeX are invalid

Hello,

I upgraded to the latest svn version of matplotlib today, and found that eps files produced with the system latex now seem to be invalid. For example, if I run the following script

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as mpl

mpl.rc('text', usetex=False)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_notex.eps')

mpl.rc('text', usetex=True)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_tex.eps')

and try running pstopdf on them (on MacOS 10.6) I get the following

air:air tom$ pstopdf test_tex.eps
%%[ Warning: Empty job. No PDF file produced. ] %%
air:air tom$ pstopdf test_notex.eps
air:air tom$

So the file with the system LaTeX enabled no longer works. ps2pdf still works, but the error with pstopdf is important, because for example Preview.app on mac relies on pstopdf, not ps2pdf.

I tried this on two different computers under MacOS 10.6, and tried with ghostscript 8.70 and 8.71 installed, and the problem occurs either way.

Does anyone know what might be causing this? I submitted a bug report a little while back about this

https://sourceforge.net/tracker/?func=detail&aid=2974953&group_id=80706&atid=560720

Thanks in advance for any help,

Thomas

Can you provide us with the EPS file? What version of LaTeX is this?

Mike

Thomas Robitaille wrote:

···

Hello,

I upgraded to the latest svn version of matplotlib today, and found that eps files produced with the system latex now seem to be invalid. For example, if I run the following script

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as mpl

mpl.rc('text', usetex=False)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_notex.eps')

mpl.rc('text', usetex=True)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_tex.eps')

and try running pstopdf on them (on MacOS 10.6) I get the following

air:air tom$ pstopdf test_tex.eps %%[ Warning: Empty job. No PDF file produced. ] %%
air:air tom$ pstopdf test_notex.eps air:air tom$

So the file with the system LaTeX enabled no longer works. ps2pdf still works, but the error with pstopdf is important, because for example Preview.app on mac relies on pstopdf, not ps2pdf.

I tried this on two different computers under MacOS 10.6, and tried with ghostscript 8.70 and 8.71 installed, and the problem occurs either way.

Does anyone know what might be causing this? I submitted a bug report a little while back about this

https://sourceforge.net/tracker/?func=detail&aid=2974953&group_id=80706&atid=560720

Thanks in advance for any help,

Thomas

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Attached is a file made using matplotlib 0.99.1.1 (which opens correctly) and one using matplotlib r8216 (which doesn't). Here's what I get for LaTeX:

$ latex --version
pdfTeX 3.1415926-1.40.10-2.2 (TeX Live 2009)
kpathsea version 5.0.0
Copyright 2009 Peter Breitenlohner (eTeX)/Han The Thanh (pdfTeX).
There is NO warranty. Redistribution of this software is
covered by the terms of both the pdfTeX copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the pdfTeX source.
Primary author of pdfTeX: Peter Breitenlohner (eTeX)/Han The Thanh (pdfTeX).
Compiled with libpng 1.2.39; using libpng 1.2.39
Compiled with zlib 1.2.3; using zlib 1.2.3
Compiled with xpdf version 3.02pl3

It is the version that comes with MacTex 2009. Here is the ghostscript version:

$ gs --version
8.70

I just produced these two files on the same computer, and the only thing I changed was the matplotlib version. LaTeX and ghostscript are unchanged

I hope this helps,

Thomas

test_tex_0.99.1.1.eps (31 KB)

test_tex_r8216.eps (31.2 KB)

It seems that removing 'restore' on line 1073 of the test_tex_r8216.eps file fixes the problem, although I don't understand postscript well enough to understand why that is.

Thomas

···

On Apr 2, 2010, at 9:30 AM, Michael Droettboom wrote:

Can you provide us with the EPS file? What version of LaTeX is this?

Mike

Thomas Robitaille wrote:

Hello,

I upgraded to the latest svn version of matplotlib today, and found that eps files produced with the system latex now seem to be invalid. For example, if I run the following script

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as mpl

mpl.rc('text', usetex=False)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_notex.eps')

mpl.rc('text', usetex=True)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_tex.eps')

and try running pstopdf on them (on MacOS 10.6) I get the following

air:air tom$ pstopdf test_tex.eps %%[ Warning: Empty job. No PDF file produced. ] %%
air:air tom$ pstopdf test_notex.eps air:air tom$
So the file with the system LaTeX enabled no longer works. ps2pdf still works, but the error with pstopdf is important, because for example Preview.app on mac relies on pstopdf, not ps2pdf.

I tried this on two different computers under MacOS 10.6, and tried with ghostscript 8.70 and 8.71 installed, and the problem occurs either way.

Does anyone know what might be causing this? I submitted a bug report a little while back about this

https://sourceforge.net/tracker/?func=detail&aid=2974953&group_id=80706&atid=560720

Thanks in advance for any help,

Thomas

------------------------------------------------------------------------------
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Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

I just had a quick look, but while extra "restore" could be a problem,
the erroneous one may not be the one at line 1073, but the one at line
1066.

I believe that the "restore" at 1073 is written by "pstoeps" function
in backend_ps.py, and this function did write a matching "save" at
line 11.

Regards,

-JJ

···

On Fri, Apr 2, 2010 at 10:35 AM, Thomas Robitaille <thomas.robitaille@...287...> wrote:

It seems that removing 'restore' on line 1073 of the test_tex_r8216.eps file fixes the problem, although I don't understand postscript well enough to understand why that is.

Thomas

On Apr 2, 2010, at 9:30 AM, Michael Droettboom wrote:

Can you provide us with the EPS file? What version of LaTeX is this?

Mike

Thomas Robitaille wrote:

Hello,

I upgraded to the latest svn version of matplotlib today, and found that eps files produced with the system latex now seem to be invalid. For example, if I run the following script

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as mpl

mpl.rc('text', usetex=False)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_notex.eps')

mpl.rc('text', usetex=True)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_tex.eps')

and try running pstopdf on them (on MacOS 10.6) I get the following

air:air tom$ pstopdf test_tex.eps %%[ Warning: Empty job. No PDF file produced. ] %%
air:air tom$ pstopdf test_notex.eps air:air tom$
So the file with the system LaTeX enabled no longer works. ps2pdf still works, but the error with pstopdf is important, because for example Preview.app on mac relies on pstopdf, not ps2pdf.

I tried this on two different computers under MacOS 10.6, and tried with ghostscript 8.70 and 8.71 installed, and the problem occurs either way.

Does anyone know what might be causing this? I submitted a bug report a little while back about this

https://sourceforge.net/tracker/?func=detail&aid=2974953&group_id=80706&atid=560720

Thanks in advance for any help,

Thomas

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Matplotlib-users mailing list
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--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
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At least on my Linux box with gs 7.07, I have to use epstopdf (not pstopdf) to convert an eps file to a pdf. ps2pdf does work for both .ps and .eps files however.

It looks like the 0.99.1.1 file is not in fact an .eps file, but a .ps file, (it certainly hasn't had the ps2eps function run on it) and I think it was probably a bug (now fixed) that 0.99.1.1 was writing out the wrong kind of file.

It seems the relevant change is in r8102: "fix some issues in the bbox after the postscript distiller is run". This change removed a commented out call to ps2eps. I'm a bit out of my depth here as to why that change was made, and why .eps files seemingly haven't been true .eps files for a long time prior to that change. Anyone else?

Mike

Thomas Robitaille wrote:

···

It seems that removing 'restore' on line 1073 of the test_tex_r8216.eps file fixes the problem, although I don't understand postscript well enough to understand why that is.

Thomas

On Apr 2, 2010, at 9:30 AM, Michael Droettboom wrote:

Can you provide us with the EPS file? What version of LaTeX is this?

Mike

Thomas Robitaille wrote:
    

Hello,

I upgraded to the latest svn version of matplotlib today, and found that eps files produced with the system latex now seem to be invalid. For example, if I run the following script

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as mpl

mpl.rc('text', usetex=False)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_notex.eps')

mpl.rc('text', usetex=True)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_tex.eps')

and try running pstopdf on them (on MacOS 10.6) I get the following

air:air tom$ pstopdf test_tex.eps %%[ Warning: Empty job. No PDF file produced. ] %%
air:air tom$ pstopdf test_notex.eps air:air tom$ So the file with the system LaTeX enabled no longer works. ps2pdf still works, but the error with pstopdf is important, because for example Preview.app on mac relies on pstopdf, not ps2pdf.

I tried this on two different computers under MacOS 10.6, and tried with ghostscript 8.70 and 8.71 installed, and the problem occurs either way.

Does anyone know what might be causing this? I submitted a bug report a little while back about this

https://sourceforge.net/tracker/?func=detail&aid=2974953&group_id=80706&atid=560720

Thanks in advance for any help,

Thomas

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

I just tried running epstopdf, and this does work correctly, so maybe now the only issue is that Preview.app on mac always uses pstopdf, even for eps files? (which then is not a matplotlib issue) I also checked that giving the file the extension '.ps' produces a ps file, and that does open correctly in Preview.app.

Cheers,

Tom

···

On Apr 2, 2010, at 11:20 AM, Michael Droettboom wrote:

At least on my Linux box with gs 7.07, I have to use epstopdf (not pstopdf) to convert an eps file to a pdf. ps2pdf does work for both .ps and .eps files however.

It looks like the 0.99.1.1 file is not in fact an .eps file, but a .ps file, (it certainly hasn't had the ps2eps function run on it) and I think it was probably a bug (now fixed) that 0.99.1.1 was writing out the wrong kind of file.
It seems the relevant change is in r8102: "fix some issues in the bbox after the postscript distiller is run". This change removed a commented out call to ps2eps. I'm a bit out of my depth here as to why that change was made, and why .eps files seemingly haven't been true .eps files for a long time prior to that change. Anyone else?

Mike

Thomas Robitaille wrote:

It seems that removing 'restore' on line 1073 of the test_tex_r8216.eps file fixes the problem, although I don't understand postscript well enough to understand why that is.

Thomas

On Apr 2, 2010, at 9:30 AM, Michael Droettboom wrote:

Can you provide us with the EPS file? What version of LaTeX is this?

Mike

Thomas Robitaille wrote:
   

Hello,

I upgraded to the latest svn version of matplotlib today, and found that eps files produced with the system latex now seem to be invalid. For example, if I run the following script

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as mpl

mpl.rc('text', usetex=False)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_notex.eps')

mpl.rc('text', usetex=True)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_tex.eps')

and try running pstopdf on them (on MacOS 10.6) I get the following

air:air tom$ pstopdf test_tex.eps %%[ Warning: Empty job. No PDF file produced. ] %%
air:air tom$ pstopdf test_notex.eps air:air tom$ So the file with the system LaTeX enabled no longer works. ps2pdf still works, but the error with pstopdf is important, because for example Preview.app on mac relies on pstopdf, not ps2pdf.

I tried this on two different computers under MacOS 10.6, and tried with ghostscript 8.70 and 8.71 installed, and the problem occurs either way.

Does anyone know what might be causing this? I submitted a bug report a little while back about this

https://sourceforge.net/tracker/?func=detail&aid=2974953&group_id=80706&atid=560720

Thanks in advance for any help,

Thomas

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
      

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

To my best knowledge, the bbox of the eps output before r8102 was
incorrect for some cases. r8102 was my attempt to fix some of the
issues. The ps backend is quite complicated in how final output is
produced (psfrag, distiller, pstoeps), and this often messes up the
initially specified bbox and results in incorrect ones. While I think
I fixed some of the issues, there still could be some left. And I hope
someone who is more knowledgeable than me take a look.

For the reported issue, I haven't take a time to investigate (but I
will soon), but I doubt if it is an issue of pstoeps function (as I
said, it seems to write a matching save-restore pair).

Regards,

-JJ

···

On Fri, Apr 2, 2010 at 11:20 AM, Michael Droettboom <mdroe@...86...> wrote:

It seems the relevant change is in r8102: "fix some issues in the bbox
after the postscript distiller is run". This change removed a commented
out call to ps2eps. I'm a bit out of my depth here as to why that
change was made, and why .eps files seemingly haven't been true .eps
files for a long time prior to that change. Anyone else?

I tried to take a look but, pstopdf in my linux box works okay (it
converted test_tex_r8216.eps fine also) and I'm afraid that I may not
be able to track this down.

Just in case, can you check if using a different distiller makes any
difference? I believe you're using a ghostscript (or none where
ghostscript is force for usetex=True). See if using xpdf works.

mpl.rc("ps", usedistiller="xpdf")

Regards,

-JJ

···

On Fri, Apr 2, 2010 at 11:44 AM, Thomas Robitaille <thomas.robitaille@...287...> wrote:

I just tried running epstopdf, and this does work correctly, so maybe now the only issue is that Preview.app on mac always uses pstopdf, even for eps files? (which then is not a matplotlib issue) I also checked that giving the file the extension '.ps' produces a ps file, and that does open correctly in Preview.app.

Cheers,

Tom

On Apr 2, 2010, at 11:20 AM, Michael Droettboom wrote:

At least on my Linux box with gs 7.07, I have to use epstopdf (not pstopdf) to convert an eps file to a pdf. ps2pdf does work for both .ps and .eps files however.

It looks like the 0.99.1.1 file is not in fact an .eps file, but a .ps file, (it certainly hasn't had the ps2eps function run on it) and I think it was probably a bug (now fixed) that 0.99.1.1 was writing out the wrong kind of file.
It seems the relevant change is in r8102: "fix some issues in the bbox after the postscript distiller is run". This change removed a commented out call to ps2eps. I'm a bit out of my depth here as to why that change was made, and why .eps files seemingly haven't been true .eps files for a long time prior to that change. Anyone else?

Mike

Thomas Robitaille wrote:

It seems that removing 'restore' on line 1073 of the test_tex_r8216.eps file fixes the problem, although I don't understand postscript well enough to understand why that is.

Thomas

On Apr 2, 2010, at 9:30 AM, Michael Droettboom wrote:

Can you provide us with the EPS file? What version of LaTeX is this?

Mike

Thomas Robitaille wrote:

Hello,

I upgraded to the latest svn version of matplotlib today, and found that eps files produced with the system latex now seem to be invalid. For example, if I run the following script

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as mpl

mpl.rc('text', usetex=False)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_notex.eps')

mpl.rc('text', usetex=True)

fig = mpl.figure()
ax = fig.add_subplot(1,1,1)
fig.savefig('test_tex.eps')

and try running pstopdf on them (on MacOS 10.6) I get the following

air:air tom$ pstopdf test_tex.eps %%[ Warning: Empty job. No PDF file produced. ] %%
air:air tom$ pstopdf test_notex.eps air:air tom$ So the file with the system LaTeX enabled no longer works. ps2pdf still works, but the error with pstopdf is important, because for example Preview.app on mac relies on pstopdf, not ps2pdf.

I tried this on two different computers under MacOS 10.6, and tried with ghostscript 8.70 and 8.71 installed, and the problem occurs either way.

Does anyone know what might be causing this? I submitted a bug report a little while back about this

https://sourceforge.net/tracker/?func=detail&aid=2974953&group_id=80706&atid=560720

Thanks in advance for any help,

Thomas

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
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