[Matplotlib-users] Documentation glitch on github

[william ratcliff]

Hi!   I was looking through the sample doc tutorial:
http://matplotlib.org/sampledoc/

and found that the link to the hard copy of the documentation is missing.
Is there a more recent link?


Best,
William
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[Matplotlib-users] Entra nella mia rete su LinkedIn

[William Ratcliff tramite LinkedIn]

LinkedIn





William Ratcliff ha chiesto di aggiungerti ai suoi collegamenti su LinkedIn:
  
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Accetta l'invito di William Ratcliff
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[Matplotlib-users] natgrid?

[william ratcliff]

Is it just me, or are some of the headers missing in the mpl-toolkit on
source-forge required to build natgrid 0.2?
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Re: [Matplotlib-users] natgrid?

[william ratcliff]

building 'mpl_toolkits.natgrid._natgrid' extension
c:\Program Files\pythonxy\mingw\bin\gcc.exe -mno-cygwin -mdll -O -Wall -Isrc
-Ic
:\python25\include -Ic:\python25\PC -c src\natgridd.c -o
build\temp.win32-2.5\Re
lease\src\natgridd.o
src\natgridd.c:17:26: ncarg/ngmath.h: No such file or directory
src\natgridd.c: In function `c_natgridd':
src\natgridd.c:25: warning: 'x_sav' might be used uninitialized in this
function

src\natgridd.c:25: warning: 'y_sav' might be used uninitialized in this
function

src\natgridd.c:25: warning: 'z_sav' might be used uninitialized in this
function

src\natgridd.c:26: warning: 'n_sav' might be used uninitialized in this
function

error: command 'gcc' failed with exit status 1


On Fri, Jul 30, 2010 at 2:27 PM, Jeff Whitaker jsw...@fastmail.fm wrote:

  On 7/30/10 12:21 PM, william ratcliff wrote:

 Is it just me, or are some of the headers missing in the mpl-toolkit on
 source-forge required to build natgrid 0.2?

 Works for me.  Can you be more specific (what's the compilation error?)

 -Jeff


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Re: [Matplotlib-users] Publication quality plots in papers

[william ratcliff]

Have you had good luck keeping the formatting going between open office and
MS word?  What about equations?

On Tue, Apr 27, 2010 at 12:42 PM, Gökhan Sever gokhanse...@gmail.comwrote:



 On Tue, Apr 27, 2010 at 11:23 AM, Konstantin Klementiev 
 kklement...@cells.es wrote:

 I like to use png files at 300dpi. I'm stuck using MS Word 2007 at work,
 and
 that's what works best in my experience. If MS ever starts to support svg
 files.
 Or matplotlib starts to support emf-files... ;)

 BTW, why the emf format is in the list of export formats whereas it is not
 actually supported?
 Its presence there gives hope that the matplotlib developers will finally
 want
 to implement it.


 EMF works if you install pyemf package. It seems good on screen except that
 it kills the text when I import emf image into Open Office Writer, worse
 than on EPS :)


 --
 Gökhan


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Re: [Matplotlib-users] Publication quality plots in papers

[william ratcliff]

I've started keeping papers under version control for latex.  But, if I have
collaborators who use word, then I just track changes.

On Tue, Apr 27, 2010 at 9:13 PM, Ryan May rma...@gmail.com wrote:

 Yeah, I check in my LaTeX file, bibliography, and any python scripts
 for figures into a subversion repo.

 Ryan

 On Tue, Apr 27, 2010 at 5:32 PM, Gökhan Sever gokhanse...@gmail.com
 wrote:
  We have old-stylers as well :) http://www.foxitsoftware.com/pdf/reader/has
  nice annotation tools for PDF reviewing, and its very fast and it works
 on
  Linux through CrossOver (probably would work via wine as well).
 
  What type of revision tracking do you use? Treat your documents like
 code?
  Google code has in-place commenting option that makes me think that
 document
  revisioning would be easier that way (one day when I start using Latex :)
 )
 
 
  On Tue, Apr 27, 2010 at 4:32 PM, Ryan May rma...@gmail.com wrote:
 
  My advisor just writes on a print out of the PDF. I'll make the
  changes in the revision tracked latex document.
 
  Ryan
 
  On Tue, Apr 27, 2010 at 4:18 PM, Gökhan Sever gokhanse...@gmail.com
  wrote:
   Hi Ryan,
   What is your typical reviewing process? Do you ask people to review on
   PDF
   outputs or via version controlled Latex document?
   OpenOffice also has a good review system where I can track my/others
   changes
   easily.
   On Tue, Apr 27, 2010 at 3:27 PM, Ryan May rma...@gmail.com wrote:
  
   I know this started with non-Latex, but I've found that passing
 around
   latex-generated PDFs works well to get reviews from non-Latex people.
   But then again, the people I work with don't rely upon MS Office's
   electronic editing capabilities.
  
   Ryan
  
   On Tue, Apr 27, 2010 at 12:43 PM, Gökhan Sever 
 gokhanse...@gmail.com
   wrote:
No, it comes with problems --especially in equation transformation.
   
I mostly work on Linux (Fedora 12). I get MS Office 2007 installed
through
CrossOver, but it has glitches and doesn't look very safe to use
 for
a
big
project.
   
On Tue, Apr 27, 2010 at 12:17 PM, william ratcliff
william.ratcl...@gmail.com wrote:
   
Have you had good luck keeping the formatting going between open
office
and MS word?  What about equations?
   
On Tue, Apr 27, 2010 at 12:42 PM, Gökhan Sever
gokhanse...@gmail.com
wrote:
   
   
On Tue, Apr 27, 2010 at 11:23 AM, Konstantin Klementiev
kklement...@cells.es wrote:
   
I like to use png files at 300dpi. I'm stuck using MS Word 2007
 at
 work, and
that's what works best in my experience. If MS ever starts to
 support
 svg
files.
Or matplotlib starts to support emf-files... ;)
   
BTW, why the emf format is in the list of export formats whereas
it
is
not
actually supported?
Its presence there gives hope that the matplotlib developers
 will
finally want
to implement it.
   
EMF works if you install pyemf package. It seems good on screen
except
that it kills the text when I import emf image into Open Office
Writer,
worse than on EPS :)
   
   
--
Gökhan
   
   
   
   
   
 --
   
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 --
   
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   School of Meteorology
   University of Oklahoma
  
  
  
  
 --
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   --
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  --
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  Graduate Research Assistant
  School of Meteorology
  University of Oklahoma
 
 
 
  --
  Gökhan
 





 --
 Ryan May
 Graduate Research Assistant
 School of Meteorology
 University of Oklahoma


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Re: [Matplotlib-users] Question about mathtext

[william ratcliff]

I think the actual error was:
TypeError: cannot return std::string from Unicode object

It was the error returned when I walked through with a debugger...

On Mon, Apr 19, 2010 at 8:51 AM, Michael Droettboom md...@stsci.edu wrote:

 It looks like the end of the traceback -- where the actual exception is
 named -- is missing.  Can you repost it in its entirety?

 Mike

 william ratcliff wrote:

 Hi!  I am using matplotlib 0.99.0 under windows xp.  I tried the
 following:
 ax.text(.96,.80,r'$P \perp
 Q$',fontsize=18,horizontalalignment='right',verticalalignment='top',transform=ax.transAxes,color='black')
 and get the following error:
 (However, in figure labels, symbols using mathtext, such as theta seem to
 work fine...)

 Thanks,
 William

 TypeError: cannot return std::string from Unicode object
 File
 C:\mytripleaxisproject\trunk\eclipse\src\utilities\bfo_film_fig2.py, line
 301, in module
  film110()
 File
 C:\mytripleaxisproject\trunk\eclipse\src\utilities\bfo_film_fig2.py, line
 157, in film110
  plt.show()
 File C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4.py,
 line 63, in show
  manager.window.show()
 File C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4.py,
 line 168, in resizeEvent
  self.draw()
 File
 C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4agg.py, line
 130, in draw
  FigureCanvasAgg.draw(self)
 File C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py,
 line 314, in draw
  self.figure.draw(self.renderer)
 File C:\Python25\Lib\site-packages\matplotlib\artist.py, line 46, in
 draw_wrapper
  draw(artist, renderer, *kl)
 File C:\Python25\Lib\site-packages\matplotlib\figure.py, line 774, in
 draw
  for a in self.axes: a.draw(renderer)
 File C:\Python25\Lib\site-packages\matplotlib\artist.py, line 46, in
 draw_wrapper
  draw(artist, renderer, *kl)
 File C:\Python25\Lib\site-packages\matplotlib\axes.py, line 1721, in
 draw
  a.draw(renderer)
 File C:\Python25\Lib\site-packages\matplotlib\text.py, line 515, in draw
  bbox, info = self._get_layout(renderer)
 File C:\Python25\Lib\site-packages\matplotlib\text.py, line 279, in
 _get_layout
  clean_line, self._fontproperties, ismath=ismath)
 File C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py,
 line 156, in get_text_width_height_descent
  self.mathtext_parser.parse(s, self.dpi, prop)
 File C:\Python25\Lib\site-packages\matplotlib\mathtext.py, line 2810, in
 parse
  box = self._parser.parse(s, font_output, fontsize, dpi)
 File C:\Python25\Lib\site-packages\matplotlib\mathtext.py, line 2259, in
 parse
  self._expression.parseString(s)
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 1048,
 in parseString
  loc, tokens = self._parse( instring, 0 )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
 _parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
 _parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2559,
 in parseImpl
  return self.expr._parse( instring, loc, doActions, callPreParse=False )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
 _parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
 _parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2307,
 in parseImpl
  loc, exprtokens = e._parse( instring, loc, doActions )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
 _parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
 _parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2672,
 in parseImpl
  loc, tokens = self.expr._parse( instring, loc, doActions,
 callPreParse=False )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
 _parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
 _parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2307,
 in parseImpl
  loc, exprtokens = e._parse( instring, loc, doActions )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
 _parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
 _parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
 File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2756,
 in parseImpl
  loc, tokens

Re: [Matplotlib-users] Question about mathtext

[william ratcliff]

 # before testing and False to force
 # correction off.  None will try and
 # guess based on your dvipng version

#text.markup : 'plain'  # Affects how text, such as titles and
labels, are
# interpreted by default.
# 'plain': As plain, unformatted text
# 'tex': As TeX-like text.  Text between $'s will be
# formatted as a TeX math expression.
# This setting has no effect when text.usetex is True.
# In that case, all text will be sent to TeX for
# processing.

# The following settings allow you to select the fonts in math mode.
# They map from a TeX font name to a fontconfig font pattern.
# These settings are only used if mathtext.fontset is 'custom'.
# Note that this custom mode is unsupported and may go away in the
# future.
#mathtext.cal : cursive
#mathtext.rm  : serif
#mathtext.tt  : monospace
#mathtext.it  : serif:italic
#mathtext.bf  : serif:bold
#mathtext.sf  : sans
#mathtext.fontset : cm # Should be 'cm' (Computer Modern), 'stix',
   # 'stixsans' or 'custom'
#mathtext.fallback_to_cm : True  # When True, use symbols from the Computer
Modern
 # fonts when a symbol can not be found in one of
 # the custom math fonts.

#mathtext.default : it # The default font to use for math.
   # Can be any of the LaTeX font names, including
   # the special name regular for the same font
   # used in regular text.


On Mon, Apr 19, 2010 at 10:41 AM, william ratcliff 
william.ratcl...@gmail.com wrote:

 Mike,

 The basename is:
 u'C:\\WINDOWS\\Fonts\\HTOWERTI.TTF'

 Let me try to find where my matplotlibrc file is located...

 Thanks,
 William


 On Mon, Apr 19, 2010 at 10:22 AM, Michael Droettboom md...@stsci.eduwrote:

 One might see that error if the path to the font being used contains
 non-ascii characters (the basename variable in the last frame of the stack
 in the stacktrace).  Is that possible?  We may need to implement the same
 workaround we use for image files for loading fonts (which is to open the
 file with Python and pass a file handle to C++ rather than passing a string
 that may contain Unicode, which is difficult to handle in cross-platform way
 from C/C++).

 Mike

 william ratcliff wrote:

 I think the actual error was:
 TypeError: cannot return std::string from Unicode object

 It was the error returned when I walked through with a debugger...

 On Mon, Apr 19, 2010 at 8:51 AM, Michael Droettboom md...@stsci.edumailto:
 md...@stsci.edu wrote:

It looks like the end of the traceback -- where the actual
exception is named -- is missing.  Can you repost it in its entirety?

Mike

william ratcliff wrote:

Hi!  I am using matplotlib 0.99.0 under windows xp.  I tried
the following:
ax.text(.96,.80,r'$P \perp

  
 Q$',fontsize=18,horizontalalignment='right',verticalalignment='top',transform=ax.transAxes,color='black')
and get the following error:
(However, in figure labels, symbols using mathtext, such as
theta seem to work fine...)

Thanks,
William

TypeError: cannot return std::string from Unicode object
File

  C:\mytripleaxisproject\trunk\eclipse\src\utilities\bfo_film_fig2.py,
line 301, in module
 film110()
File

  C:\mytripleaxisproject\trunk\eclipse\src\utilities\bfo_film_fig2.py,
line 157, in film110
 plt.show()
File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4.py,
line 63, in show
 manager.window.show()
File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4.py,
line 168, in resizeEvent
 self.draw()
File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4agg.py,
line 130, in draw
 FigureCanvasAgg.draw(self)
File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py,
line 314, in draw
 self.figure.draw(self.renderer)
File C:\Python25\Lib\site-packages\matplotlib\artist.py,
line 46, in draw_wrapper
 draw(artist, renderer, *kl)
File C:\Python25\Lib\site-packages\matplotlib\figure.py,
line 774, in draw
 for a in self.axes: a.draw(renderer)
File C:\Python25\Lib\site-packages\matplotlib\artist.py,
line 46, in draw_wrapper
 draw(artist, renderer, *kl)
File C:\Python25\Lib\site-packages\matplotlib\axes.py, line
1721, in draw
 a.draw(renderer)
File C:\Python25\Lib\site-packages\matplotlib\text.py, line
515, in draw
 bbox, info = self._get_layout(renderer)
File C:\Python25\Lib\site-packages\matplotlib\text.py, line
279, in _get_layout
 clean_line, self._fontproperties, ismath=ismath)
File

  C:\Python25\Lib\site-packages\matplotlib

Re: [Matplotlib-users] Question about mathtext

[william ratcliff]

On the plus side, there is no longer an error when I apply the patch.  On
the downside, it generates a rather strange symbol instead of a
perpendicular symbolLet me try to quickly upgrade to 0.99.1.  I did that
and I seem to get the same error...

On Mon, Apr 19, 2010 at 10:49 AM, Michael Droettboom md...@stsci.eduwrote:

 Does forcibly casting the path to a string resolve the problem?  i.e.
 applying this patch:

 Index: mathtext.py
 ===
 --- mathtext.py (revision 8216)
 +++ mathtext.py (working copy)
 @@ -597,7 +597,7 @@

cached_font = self._fonts.get(basename)
if cached_font is None:
 -font = FT2Font(basename)
 +font = FT2Font(str(basename))
cached_font = self.CachedFont(font)
self._fonts[basename] = cached_font
self._fonts[font.postscript_name] = cached_font

 Mike

 william ratcliff wrote:

 Mike,

 The basename is:
 u'C:\\WINDOWS\\Fonts\\HTOWERTI.TTF'

 Let me try to find where my matplotlibrc file is located...

 Thanks,
 William

 On Mon, Apr 19, 2010 at 10:22 AM, Michael Droettboom md...@stsci.edumailto:
 md...@stsci.edu wrote:

One might see that error if the path to the font being used
contains non-ascii characters (the basename variable in the last
frame of the stack in the stacktrace).  Is that possible?  We may
need to implement the same workaround we use for image files for
loading fonts (which is to open the file with Python and pass a
file handle to C++ rather than passing a string that may contain
Unicode, which is difficult to handle in cross-platform way from
C/C++).

Mike

william ratcliff wrote:

I think the actual error was:
TypeError: cannot return std::string from Unicode object

It was the error returned when I walked through with a debugger...

On Mon, Apr 19, 2010 at 8:51 AM, Michael Droettboom
md...@stsci.edu mailto:md...@stsci.edu
mailto:md...@stsci.edu mailto:md...@stsci.edu wrote:

   It looks like the end of the traceback -- where the actual
   exception is named -- is missing.  Can you repost it in its
entirety?

   Mike

   william ratcliff wrote:

   Hi!  I am using matplotlib 0.99.0 under windows xp.  I
tried
   the following:
   ax.text(.96,.80,r'$P \perp

  
 Q$',fontsize=18,horizontalalignment='right',verticalalignment='top',transform=ax.transAxes,color='black')
   and get the following error:
   (However, in figure labels, symbols using mathtext, such as
   theta seem to work fine...)

   Thanks,
   William

   TypeError: cannot return std::string from Unicode object
   File

  C:\mytripleaxisproject\trunk\eclipse\src\utilities\bfo_film_fig2.py,
   line 301, in module
film110()
   File

  C:\mytripleaxisproject\trunk\eclipse\src\utilities\bfo_film_fig2.py,
   line 157, in film110
plt.show()
   File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4.py,
   line 63, in show
manager.window.show()
   File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4.py,
   line 168, in resizeEvent
self.draw()
   File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4agg.py,
   line 130, in draw
FigureCanvasAgg.draw(self)
   File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py,
   line 314, in draw
self.figure.draw(self.renderer)
   File C:\Python25\Lib\site-packages\matplotlib\artist.py,
   line 46, in draw_wrapper
draw(artist, renderer, *kl)
   File C:\Python25\Lib\site-packages\matplotlib\figure.py,
   line 774, in draw
for a in self.axes: a.draw(renderer)
   File C:\Python25\Lib\site-packages\matplotlib\artist.py,
   line 46, in draw_wrapper
draw(artist, renderer, *kl)
   File
C:\Python25\Lib\site-packages\matplotlib\axes.py, line
   1721, in draw
a.draw(renderer)
   File
C:\Python25\Lib\site-packages\matplotlib\text.py, line
   515, in draw
bbox, info = self._get_layout(renderer)
   File
C:\Python25\Lib\site-packages\matplotlib\text.py, line
   279, in _get_layout
clean_line, self._fontproperties, ismath=ismath)
   File

  C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py,
   line 156, in get_text_width_height_descent
self.mathtext_parser.parse(s, self.dpi, prop)
   File

[Matplotlib-users] Question about mathtext

[william ratcliff]

Hi!  I am using matplotlib 0.99.0 under windows xp.  I tried the following:
ax.text(.96,.80,r'$P \perp
Q$',fontsize=18,horizontalalignment='right',verticalalignment='top',transform=ax.transAxes,color='black')

and get the following error:
(However, in figure labels, symbols using mathtext, such as theta seem to
work fine...)

Thanks,
William

TypeError: cannot return std::string from Unicode object
File C:\mytripleaxisproject\trunk\eclipse\src\utilities\bfo_film_fig2.py,
line 301, in module
  film110()
File C:\mytripleaxisproject\trunk\eclipse\src\utilities\bfo_film_fig2.py,
line 157, in film110
  plt.show()
File C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4.py,
line 63, in show
  manager.window.show()
File C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4.py,
line 168, in resizeEvent
  self.draw()
File C:\Python25\Lib\site-packages\matplotlib\backends\backend_qt4agg.py,
line 130, in draw
  FigureCanvasAgg.draw(self)
File C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py,
line 314, in draw
  self.figure.draw(self.renderer)
File C:\Python25\Lib\site-packages\matplotlib\artist.py, line 46, in
draw_wrapper
  draw(artist, renderer, *kl)
File C:\Python25\Lib\site-packages\matplotlib\figure.py, line 774, in draw
  for a in self.axes: a.draw(renderer)
File C:\Python25\Lib\site-packages\matplotlib\artist.py, line 46, in
draw_wrapper
  draw(artist, renderer, *kl)
File C:\Python25\Lib\site-packages\matplotlib\axes.py, line 1721, in draw
  a.draw(renderer)
File C:\Python25\Lib\site-packages\matplotlib\text.py, line 515, in draw
  bbox, info = self._get_layout(renderer)
File C:\Python25\Lib\site-packages\matplotlib\text.py, line 279, in
_get_layout
  clean_line, self._fontproperties, ismath=ismath)
File C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py,
line 156, in get_text_width_height_descent
  self.mathtext_parser.parse(s, self.dpi, prop)
File C:\Python25\Lib\site-packages\matplotlib\mathtext.py, line 2810, in
parse
  box = self._parser.parse(s, font_output, fontsize, dpi)
File C:\Python25\Lib\site-packages\matplotlib\mathtext.py, line 2259, in
parse
  self._expression.parseString(s)
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 1048, in
parseString
  loc, tokens = self._parse( instring, 0 )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
_parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
_parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2559, in
parseImpl
  return self.expr._parse( instring, loc, doActions, callPreParse=False )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
_parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
_parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2307, in
parseImpl
  loc, exprtokens = e._parse( instring, loc, doActions )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
_parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
_parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2672, in
parseImpl
  loc, tokens = self.expr._parse( instring, loc, doActions,
callPreParse=False )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
_parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
_parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2307, in
parseImpl
  loc, exprtokens = e._parse( instring, loc, doActions )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
_parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
_parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2756, in
parseImpl
  loc, tokens = self.expr._parse( instring, loc, doActions,
callPreParse=False )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 981, in
_parseCache
  value = self._parseNoCache( instring, loc, doActions, callPreParse )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 924, in
_parseNoCache
  loc,tokens = self.parseImpl( instring, preloc, doActions )
File C:\Python25\Lib\site-packages\matplotlib\pyparsing.py, line 2714, in
parseImpl
  loc, tmptokens = 

[Matplotlib-users] simple colorbar question

[william ratcliff]

I have two quick questions about colorbars in matplotlib.  The first is
related to the size of the colorbar.  I would like to have square axes for a
plot, so I use:
ax=fig.add_subplot(1,2,1)
pc=ax.pcolor(X,Z,P2)
ax.set_aspect(1./ax.get_data_ratio())
cb=pylab.colorbar(pc,orientation='vertical')

However, here I find that the colorbar is as long as the original image
rather than the scaled image.  Is there a good way around this?

pylab.axis('equal')
and
pylab.axis('scaled')
have not helped.

The second question is related to the choice of tickmarks for the colorbar.
 If I would like to have only say 4 ticks on colorbar, I tried:
cb.ax.xaxis.set_major_locator(MaxNLocator(4)), however, the range for the
colorbar is now incorrect.  Suggestions?  I am using
version 0.99.0

Thanks,
William
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[Matplotlib-users] axes grid toolkit

[william ratcliff]

Hi,
I think I'm missing something obvious.  I'd like to install the axes_grid
toolkit to work on some inset graphs.  I can't seem to find it on the trunk
of svn.  Where is it living these days?  Is there a version that would be
compatible with .99.0?

Thanks,
William
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Re: [Matplotlib-users] download

[william ratcliff]

I saw this for windows when I was downloading .99.  I just checked again in
Vista--I believe it did the same thing in XP
Cheers,
William

On Thu, Sep 3, 2009 at 9:16 PM, John Hunter jdh2...@gmail.com wrote:

 On Thu, Sep 3, 2009 at 8:04 PM, Alan G Isaacalan.is...@gmail.com wrote:
  The default download from the Matplotlib page
  link to http://sourceforge.net/projects/matplotlib/
  which once again highlights basemap.  (I think
  this was fixed at one point.)

 I'm not seeng this, nor am I seeing basemap settings in the File
 Manager which would trigger this.  Of course, the default download is
 platform specific, which may be why I am not seeing this, so please
 give us as much info as possible about your platform (mainly the OS)

 When I click on the green download button at
 http://sourceforge.net/projects/matplotlib using mac OSX 10.5, I get
 redirected to the mpl 0.99 OSX download::


 https://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-0.99/matplotlib-0.99.0-py2.5-macosx10.5.dmg/download

 JDH


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Re: [Matplotlib-users] download

[william ratcliff]

I should mention that I tested 32 bit

On Thu, Sep 3, 2009 at 11:59 PM, Alan G Isaac alan.is...@gmail.com wrote:

 John Hunter wrote:
  I'm not seeng this, nor am I seeing basemap settings in the File
  Manager which would trigger this.  Of course, the default download is
  platform specific, which may be why I am not seeing this, so please
  give us as much info as possible about your platform (mainly the OS)
 
  When I click on the green download button at
  http://sourceforge.net/projects/matplotlib using mac OSX 10.5, I get
  redirected to the mpl 0.99 OSX download:


 Windows Vista 64bit.
 I see

 http://sourceforge.net/projects/matplotlib/files/matplotlib-toolkits/basemap-0.99.4/basemap-0.99.4.win32-py2.6.exe/download

 Alan Isaac



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[Matplotlib-users] Build issue under windows

[william ratcliff]

I have recently been trying to build matplotlib from source under Vista
using mingw32.  I have downloaded the win32static library from the
matplotlib page.   Here is the error:
writing build\temp.win32-2.5\Release\src\ft2font.def
c:\Program Files\pythonxy\mingw\bin\g++.exe -mno-cygwin -mdll -static
--entry _dllm...@12 --output-lib
build\temp.win32-2.5\Release\src\libft2font.a --def
build\temp.win32-2.5\Release\src\ft2font.def -s
build\temp.win32-2.5\Release\src\ft2font.o
build\temp.win32-2.5\Release\src\mplutils.o
build\temp.win32-2.5\Release\cxx\cxxsupport.o
build\temp.win32-2.5\Release\cxx\cxx_extensions.o
build\temp.win32-2.5\Release\cxx\indirectpythoninterface.o
build\temp.win32-2.5\Release\cxx\cxxextensions.o -Lwin32_static\lib
-Lc:\python25\libs -Lc:\python25\PCBuild -lfreetype -lz -lpython25 -lmsvcr71
-o build\lib.win32-2.5\matplotlib\ft2font.pyd
g++: build\temp.win32-2.5\Release\src\libft2font.a: No such file or
directory
error: command 'g++' failed with exit status 1


It would seem that somehow it is attempting to link with libft2font.a
instead of creating it.  Any ideas?

Thanks,
William
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[Matplotlib-users] glitch in examples of draggable rectangle

[william ratcliff]

Hi!  I just tried the draggable rectangle extra credit example from:
http://matplotlib.sourceforge.net/users/event_handling.html
and as it is, it doesn't work.  In the on_press method, I had to change:

x0,y0=self.rect.xy to:
x0=self.rect.get_x()
y0=selft.rect.get_y()

which then works, but I find that despite using the blitting technique,
there is a significant lag in the redraws...

Thanks,
William
(I am using the QT4Agg backend and version 0.98.3, revision 5941)
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Re: [Matplotlib-users] question about contours and clim

[william ratcliff]

Thanks!  I'll just add that if you want to use the ticker example it needs
to be:


..
zmin, zmax = 160, 500
locator = ticker.MaxNLocator(10) # if you want no more than 10 contours
locator.create_dummy_axis()
locator.set_bounds(zmin, zmax)
levs = locator()


On Mon, May 18, 2009 at 7:29 PM, Eric Firing efir...@hawaii.edu wrote:

 william ratcliff wrote:

 Thanks!  I think that explains a lot.  In the full range of my dataset, I
 do have some rather high values.  Instead of masking them out, I was hoping
 that I could just set a minimum and maximum value using clim to only display
 values within that range--it sounds like I need to mask these values out if
 I want the contours to be generated automatically.  What I'd really like to
 be able to do is set zlow and zhigh and renormalize the colorbar based on
 that range  (for example, blue the lowest value and red the highest value)
 for display purposes without touching the underlying data...It might
 complicate the signature of contour even more, but would it be possible to
 define a zlow, zhigh, such that the contour levels are determined based on
 that zlow and zhigh instead of the actual ranges in the data?  If they are
 undefined, the behavior would default to the actual range in the data?  That
 way, one could further separate the display of the data from the actual
 data...


 William,

 Yes, it would be possible to put in zlow and zhigh kwargs--but why?  Why
  not just generate the contours you want over the range you want, as I
 originally suggested?  You can use linspace, or arange, or a Ticker. You
 *don't* need to mask out values that are out of range.  You can supply a
 colormap that uses a color you specify for over-range and under-range
 values, if you like; see
 http://matplotlib.sourceforge.net/examples/pylab_examples/image_masked.html
 for an example of this (although most of the rest of the example is much
 more complicated than what you need for contourf.)

 Ticker example (untested):

 import matplotlib.ticker as ticker
 zmin, zmax = 160, 500
 locator = ticker.MaxNLocator(10) # if you want no more than 10 contours
 locator.set_bounds(zmin, zmax)
 levs = locator()
 # ... set up x, y, z ...
 contourf(x, y, z, levs)


 There was an earlier proposal that mappables, like ContourSet, accept norm
 kwargs vmin and vmax to be passed on to the norm when the default norm is
 used.  I should look at this idea again.  I'm not sure offhand whether it is
 a good idea, or whether it would take care of what you are asking for.

 Eric

  Thanks,
 William


 On Mon, May 18, 2009 at 6:18 PM, Eric Firing efir...@hawaii.edu mailto:
 efir...@hawaii.edu wrote:

william ratcliff wrote:

Here, I've changed the number of contours to 15 and 45
respectively--and the problem still remains.  Do I need to
manually set the ranges of the segments on the colorbar or
something?  It would seem to me that somehow the new limits are
not being used in determining the boundaries of which color is
used for which set of values.  I should also mention that I am
using a masked array for z (which is what gives rise to the
white square in the bottom right corner).


I was not suggesting just changing the *number* of contours, I was
suggesting explicitly setting the boundaries. This is almost always
a better strategy; the signature in which a number of contours is
specified is intended only for quick and dirty exploration (and
Matlab compatibility, which led to the overly complex set of
possible signatures for contour in mpl). When contour is called as
you called it, it doesn't know or care anything about clim; it finds
the range of your input data and linearly spreads the requested
number of values over approximately that range.  (Actually, it uses
a ticker to do this, so contour values will fall on reasonably nice
numbers.) I suspect there is an unmasked high value that is making
the auto-detected range too large. What do you get from

print z.min(), z.max()


If you don't set the clim, it is set automatically based on the
contour levels; so if you set the levels, you don't need to set the
clim.

Colorbar gets its information from the ContourSet object.


Eric


Thanks,
William


On Mon, May 18, 2009 at 5:16 PM, Eric Firing efir...@hawaii.edu
mailto:efir...@hawaii.edu mailto:efir...@hawaii.edu

mailto:efir...@hawaii.edu wrote:

   william ratcliff wrote:

   Hi!   I have a question about contours and clim within
   matplotlib.  I load in some files and do some processing and
   generate a contour plot using:


   cmap=pylab.cm.jet
   mycontour=pylab.contourf(x,y,z,95)#,




   You don't really want 95 contour levels, do you?
   Instead of using set_clim, set the contour levels you want, and
 I

Re: [Matplotlib-users] 2 simple ??: program exit w/graph, update graph real-time

[william ratcliff]

I'd like to see it ;

On Wed, May 6, 2009 at 8:57 AM, Robert Cimrman cimrm...@ntc.zcu.cz wrote:

 Robert Cimrman wrote:
  Hi Ryan,
 
  Ryan May wrote:
  On Thu, Apr 23, 2009 at 4:16 PM, Esmail ebo...@hotmail.com wrote:
 
  Ryan May wrote:
  Try this:
 
 
 
 http://matplotlib.sourceforge.net/examples/animation/simple_anim_gtk.html
  (If not gtk, there are other examples there.)
  Thanks Ryan, that'll give me some idea with regard to the animation,
  and real-time drawings.
 
  Any idea if it's possible to finish a Python program but still have the
  graph showing?
 
  FWIW, I'm doing this under Linux.
 
  You'd have to run the plotting in a separate process from the
 computation.
  subprocess would let you do that, assuming you can spin off a child task
  that stays alive when the parent exits.  You'd also need to get the
  computing process to give new results to the child plot, maybe using a
 pipe
  (which I think subprocess can handle as well.)
 
  This is exactly what I have tried/described in [1], using the
  multiprocessing module. It sort of works, but I have that hanging
  problem at the end - maybe somebody jumps in and helps this time :)
 
  r.
 
  [1]
 
 http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/msg10873.html

 Just for the record: Ryan May's example in this thread, that uses pipes,
 inspired me to try pipes as well, instead of queues
 (multiprocessing.Pipe instead of Queue) and the hanging problem, i.e.
 the problem that Ctrl-C interrupted the program, but it had to be killed
 to stop, disappeared. I can fix the script that I sent in message [1]
 and provide it, if there is interest. (Currently I have fixed only the
 version that is within sfepy).

 thanks!
 r.

 [1] [Matplotlib-users] plotting in a separate process, 31.03.2009


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[Matplotlib-users] Quick question about annotate

[william ratcliff]

Hi!  Quick question about pylab.annotate:

Is it supposed to take keyword args such as fontsize?

Thanks,
William
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Re: [Matplotlib-users] Unable to compile matplotlib 0.91.2 on windows

[william ratcliff]

Have the static sources been updated (freetype, etc.) for mingw?

Cheers,
William

On Jan 8, 2008 9:48 PM, Charlie Moad [EMAIL PROTECTED] wrote:

 Just a guess.  Did you download the visual studio static libraries
 instead of the mingw ones?  Those linking symbols listed lend me to
 think this.  The visual studio ones end in _vs.tar.gz.

 You want this:

 http://matplotlib.sourceforge.net/win32_static.tar.gz

 - Charlie

 On Jan 8, 2008 6:17 PM, Francesco Pretto [EMAIL PROTECTED] wrote:
  Hi, i'm a newcomer: greetings to all! I'm trying to compile matplotlib
  on windows platform using mingw toolchains (I'm going to play a little
  with the code). I think to have all dependencies, as specified in
  setupext.py (downloaded the static header+libs package).
  Unfortunately, linking is not working. I'm using latest stable version
  of mingw, 5.1.3. Follows the output; I trimmed it a little, hopefully
  only reduntant parts, but if you prefer here is the full output
  (without automatic mail client line wraps...):
 
  http://bproofs.homeunix.org/build23.out
 
   If you need more information on my setup, please ask me.
 
  Thanks for any help!
 
  Francesco Pretto
 
 
 
  BUILDING MATPLOTLIB
  matplotlib: 0.91.2
  python: 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC
  v.1310 32 bit (Intel)]
platform: win32
 Windows version: (5, 1, 2600, 2, 'Service Pack 2')
 
  REQUIRED DEPENDENCIES
   numpy: 1.0.4
   freetype2: found, but unknown version (no pkg-config)
 
  OPTIONAL BACKEND DEPENDENCIES
  libpng: found, but unknown version (no pkg-config)
Gtk+: gtk+: 2.10.11, glib: 2.12.11, pygtk: 2.10.6,
  pygobject: 2.12.3
  Qt: no
 Qt4: no
   Cairo: 1.2.6
 
  OPTIONAL DATE/TIMEZONE DEPENDENCIES
datetime: present, version unknown
dateutil: matplotlib will provide
pytz: matplotlib will provide
 
  OPTIONAL USETEX DEPENDENCIES
  dvipng: batch.
 ghostscript: gswin32c non Š riconosciuto come comando
 interno o
  esterno,  un programma eseguibile o un file
 batch.
   latex: no
 
  EXPERIMENTAL CONFIG PACKAGE DEPENDENCIES
   configobj: matplotlib will provide
enthought.traits: matplotlib will provide
 
  [Edit setup.cfg to suppress the above messages]
 
 
  running build
  running build_py
  creating build
  creating build\lib.win32-2.5
  copying lib\pylab.py - build\lib.win32-2.5
  copying lib\configobj.py - build\lib.win32-2.5
  creating build\lib.win32-2.5\matplotlib
  copying lib\matplotlib\afm.py - build\lib.win32-2.5\matplotlib
  copying lib\matplotlib\agg.py - build\lib.win32-2.5\matplotlib
  copying lib\matplotlib\art3d.py - build\lib.win32-2.5\matplotlib
  copying lib\matplotlib\artist.py - build\lib.win32-2.5\matplotlib
  copying lib\matplotlib\axes.py - build\lib.win32-2.5\matplotlib
  copying lib\matplotlib\axes3d.py - build\lib.win32-2.5\matplotlib
 
  [...]
 
  copying lib\pytz\zoneinfo\US\Pacific-New - build\lib.win32-
 2.5\pytz\zoneinfo\US
  copying lib\pytz\zoneinfo\US\Samoa - build\lib.win32-
 2.5\pytz\zoneinfo\US
  copying lib\dateutil\zoneinfo\zoneinfo-2007f.tar.gz -
  build\lib.win32-2.5\dateutil\zoneinfo
  running build_ext
  building 'matplotlib.ft2font' extension
  C compiler: gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes
 
  creating build\temp.win32-2.5
  creating build\temp.win32-2.5\Release
  creating build\temp.win32-2.5\Release\src
  creating build\temp.win32-2.5\Release\cxx
  compile options: '-Iwin32_static\include -I.
  -Iwin32_static\include\freetype2 -I.\freetype2 -Ic:\python25\include
  -Ic:\python25\PC -c'
  gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes -Iwin32_static\include
  -I. -Iwin32_static\include\freetype2 -I.\freetype2
  -Ic:\python25\include -Ic:\python25\PC -c CXX\cxxextensions.c -o
  build\temp.win32-2.5\Release\cxx\cxxextensions.o
  Found executable c:\mingw\bin\gcc.exe
  gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes -Iwin32_static\include
  -I. -Iwin32_static\include\freetype2 -I.\freetype2
  -Ic:\python25\include -Ic:\python25\PC -c
  CXX\IndirectPythonInterface.cxx -o
  build\temp.win32-2.5\Release\cxx\indirectpythoninterface.o
  gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes -Iwin32_static\include
  -I. -Iwin32_static\include\freetype2 -I.\freetype2
  -Ic:\python25\include -Ic:\python25\PC -c src/mplutils.cpp -o
  build\temp.win32-2.5\Release\src\mplutils.o
  gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes -Iwin32_static\include
  -I. -Iwin32_static\include\freetype2 -I.\freetype2
  -Ic:\python25\include -Ic:\python25\PC -c CXX\cxx_extensions.cxx -o
  

Re: [Matplotlib-users] power law fitting of data

[william ratcliff]

Is there a new version of this which uses numpy instead of Numeric?  I found
the old Numeric version to work very well.

cheers,
William

On Dec 26, 2007 12:58 PM, Jessica Lu [EMAIL PROTECTED] wrote:

 Hi Johann,

 I would recommend using the python mpfit module:

 http://cars9.uchicago.edu/software/python/mpfit.html

 Cheers,
 Jessica

 On Dec 22, 2007, at 8:57 PM, Johann Cohen-Tanugi wrote:

  hi jessica,
  This FittingData tutorial is very nice. Could you illustrate how to
  fix/thaw parameters?
  I did not find any such attribute and when I try some kludges they
  fail
  with a msg saying
  type 'exceptions.ValueError': shape mismatch: objects cannot be
  broadcast to a single shape
 
 
  thanks,
  Johann
 
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[Matplotlib-users] Fwd: problems with eps files and pylab

[william ratcliff]

-- Forwarded message --
From: william ratcliff [EMAIL PROTECTED]
Date: Nov 6, 2007 8:27 AM
Subject: Re: [Matplotlib-users] problems with eps files and pylab
To: Darren Dale [EMAIL PROTECTED]


Thanks--before your mail, I hadn't thought to check other viewers to
see if it was viewer artifact and had assumed that the problem was
with the output.

Cheers,
William


On Nov 6, 2007 7:11 AM, Darren Dale [EMAIL PROTECTED] wrote:
 On Monday 05 November 2007 11:34:09 pm you wrote:
  Here is how it renders in windows XP--you can notice the grid and that
  the angstrom symbol does not render correctly.  This is using
  gsview32, version 4.8 with ghostscript 8.5.4.
 
  However, after your email, I tried looking at it in ghostview 1.5 on a
  silicon graphics machine and found that the image rendered
  nicely, without the gridding, but that the angstrom symbol was still
  incorrect.  Evince under linux is rather slow on my linux box, but
  seems to run into similar problems as I see under xp.  What are you
  using for viewing?

 I think these are artifacts introduced by the viewer. I don't see them with
 kghostview, but I do with ggv. I have ghostscript-8.60 on my machine. I
 wonder if you get the same effect if you dont pass a dpi kwarg. I'm sorry, I
 dont think there is anything mpl can do about the limitations of external
 postscript renderers.

 Darren


  On Nov 5, 2007 7:55 PM, Darren Dale [EMAIL PROTECTED] wrote:
   I don't know what you mean. Your ps and png look the same on my machine.
   Maybe you can post a screenshot of your rendered postscript file. What
   version of ghostscript are you using?
  
   On Monday 05 November 2007 6:49:17 pm you wrote:
ok, so, the file I generated is .ps, so why is the gridding occuring?
   
Thanks,
William
   
On Nov 5, 2007 6:25 PM, Darren Dale [EMAIL PROTECTED] wrote:
 On Monday 05 November 2007 5:25:48 pm william ratcliff wrote:
  ftp://ftp.ncnr.nist.gov/pub
 
  fig3b.ps
 
  Is what I generated, using savefig.  Does this generate postscript,
  or eps output?  If I changed the extension in savefig to, .eps
  would it generate an eps file?

 .ps is postscript, .eps is encapsulated postscript. Yes, you need to
 specify .eps if you want an eps file.

  On Nov 5, 2007 4:31 PM, Darren Dale [EMAIL PROTECTED] wrote:
   On Monday 05 November 2007 3:48:11 pm william ratcliff wrote:
Hi! I hope I have what is a simple question:
   
I recently created a figure using pylab and saved it using:
pylab.savefig(r'c:\fig3b.pdf',dpi=150)
and it worked great.  I made the same figure with a .png ending
and it also worked well.
   
However, when I tried to make an eps file for use with latex
and publishing, I found:
using gsview:
   
DSC Error at line 527
%%Page: 11
This %%Page:line occured in the trailer, which is not legal.
EPS files should be encapsulated in %%BeginDocument/
%%EndDocument It is possible that an EPS file was incorrectly
encapsulated and that we have been cofused by the %%Trailer in
an EPS file
   
If I ignore all DSC, then I see a figure with noticeable
gridding across it.  However, if I use distiller to convert it
to a PDF file, it appears fine.
Any ideas?
   
Thanks,
William
(the files are rather large, but are available at:
ftp://ftp.ncnr.nist.gov/pub/
as fig3b.ps, fig3b.pdf, fig3b.png)
  
   Where is the eps file?
  
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 --
 Darren S. Dale, Ph.D.
 [EMAIL PROTECTED]
  
   --
  
   Darren S. Dale, Ph.D.
   [EMAIL PROTECTED]



 --

 Darren S. Dale, Ph.D.
 [EMAIL PROTECTED]


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[Matplotlib-users] problems with eps files and pylab

[william ratcliff]

Hi! I hope I have what is a simple question:

I recently created a figure using pylab and saved it using:
pylab.savefig(r'c:\fig3b.pdf',dpi=150)
and it worked great.  I made the same figure with a .png ending and it
also worked well.

However, when I tried to make an eps file for use with latex and
publishing, I found:
using gsview:

DSC Error at line 527
%%Page: 11
This %%Page:line occured in the trailer, which is not legal.
EPS files should be encapsulated in %%BeginDocument/ %%EndDocument
It is possible that an EPS file was incorrectly encapsulated and that
we have been cofused by the %%Trailer in an EPS file

If I ignore all DSC, then I see a figure with noticeable gridding
across it.  However, if I use distiller to convert it to a PDF file,
it appears fine.
Any ideas?

Thanks,
William
(the files are rather large, but are available at:
ftp://ftp.ncnr.nist.gov/pub/
as fig3b.ps, fig3b.pdf, fig3b.png)

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Re: [Matplotlib-users] problems with eps files and pylab

[william ratcliff]

ftp://ftp.ncnr.nist.gov/pub

fig3b.ps

Is what I generated, using savefig.  Does this generate postscript, or
eps output?  If I changed the extension in savefig to, .eps would it
generate an eps file?

Thanks,
William

On Nov 5, 2007 4:31 PM, Darren Dale [EMAIL PROTECTED] wrote:

 On Monday 05 November 2007 3:48:11 pm william ratcliff wrote:
  Hi! I hope I have what is a simple question:
 
  I recently created a figure using pylab and saved it using:
  pylab.savefig(r'c:\fig3b.pdf',dpi=150)
  and it worked great.  I made the same figure with a .png ending and it
  also worked well.
 
  However, when I tried to make an eps file for use with latex and
  publishing, I found:
  using gsview:
 
  DSC Error at line 527
  %%Page: 11
  This %%Page:line occured in the trailer, which is not legal.
  EPS files should be encapsulated in %%BeginDocument/ %%EndDocument
  It is possible that an EPS file was incorrectly encapsulated and that
  we have been cofused by the %%Trailer in an EPS file
 
  If I ignore all DSC, then I see a figure with noticeable gridding
  across it.  However, if I use distiller to convert it to a PDF file,
  it appears fine.
  Any ideas?
 
  Thanks,
  William
  (the files are rather large, but are available at:
  ftp://ftp.ncnr.nist.gov/pub/
  as fig3b.ps, fig3b.pdf, fig3b.png)

 Where is the eps file?

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[Matplotlib-users] 3D plotting?

[william ratcliff]

Is there a way to choose the color map for doing scatter plots using
Axes3D?  In the test_scatter() example in the class, there is a line
something like:

ax.scatter3D(xs,ys,zs, c='r')

I would like to plot points based on 3 dimensional coordinates specified by
xs,ys, zs, which works great.  However, I would like to color the points
with a third array, for example, cs which would either specify an index in a
color map, or even just an intensity of a given color.  Is this possible
within matplotlib?

Thanks,
William
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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

The build would be nice given the added features in interactivity in
matplotlib now.  Would it be difficult to make a Windows XP build as well?
My current build seems to work--but others might also want one with the
latest features.


Thanks,
William

On 8/6/07, Charlie Moad [EMAIL PROTECTED] wrote:

 I got a successful build using VS2003 on Vista.  Here is the env dump:


 
 BUILDING MATPLOTLIB
 matplotlib: 0.90.1
 python: 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC
 v.1310 32 bit (Intel)]
   platform: win32
Windows version: (6, 0, 6000, 2, '')

 REQUIRED DEPENDENCIES
  numpy: 1.0.3
  freetype2: found, but unknown version (no pkg-config)

 OPTIONAL DEPENDENCIES
   Gtk+: gtk+: 2.10.11, glib: 2.12.11, pygtk: 2.10.4,
 pygobject: 2.12.3
Tkinter: Tkinter: 50704, Tk: 8.4, Tcl: 8.4
   wxPython: no
 * wxPython not found
 Qt: no
Qt4: no
  Cairo: 1.2.6
 libpng: found, but unknown version (no pkg-config)

 [Edit setup.cfg to suppress the above messages]

 

 And here is the patch to make it work:

 Index: C:/workspace/matplotlib/setupext.py
 ===
 --- C:/workspace/matplotlib/setupext.py (revision 3677)
 +++ C:/workspace/matplotlib/setupext.py (working copy)
 @@ -676,10 +676,10 @@
  if sys.platform=='win32':
  major, minor1, minor2, s, tmp = sys.version_info
  if major==2 and minor1 in [3, 4, 5]:
 -module.include_dirs.extend(['win32_static/include/tcl84'])
 +module.include_dirs.extend(['win32_static/include/tcl8.4'])
  module.libraries.extend(['tk84', 'tcl84'])
  elif major==2 and minor1==2:
 -module.include_dirs.extend(['win32_static/include/tcl83'])
 +module.include_dirs.extend(['win32_static/include/tcl8.3'])
  module.libraries.extend(['tk83', 'tcl83'])
  else:
  raise RuntimeError('No tk/win32 support for this python
 version yet')
 Index: C:/workspace/matplotlib/ttconv/ttutil.cpp
 ===
 --- C:/workspace/matplotlib/ttconv/ttutil.cpp   (revision 3677)
 +++ C:/workspace/matplotlib/ttconv/ttutil.cpp   (working copy)
 @@ -32,10 +32,10 @@
va_start(arg_list, format);
char buffer[PRINTF_BUFFER_SIZE];

 -  int size = vsnprintf(buffer, PRINTF_BUFFER_SIZE, format, arg_list);
 +  int size = _vsnprintf(buffer, PRINTF_BUFFER_SIZE, format, arg_list);
if (size = PRINTF_BUFFER_SIZE) {
  char* buffer2 = (char*)malloc(size);
 -vsnprintf(buffer2, size, format, arg_list);
 +_vsnprintf(buffer2, size, format, arg_list);
  free(buffer2);
} else {
  this-write(buffer);


 I don't have time to add the proper #ifdef to the cpp file at this
 moment.  I can't remember to proper check off the top of my head.
 I'll commit the fix to the setupext.py typo.

 Did someone want the build?  If so, e-mail me and I'll post it somewhere.

 - Charlie

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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

I was using version 3673 of svn (matplotlib) when it worked.  I had a clean
build directory (I usually kill it before trying to build a new version,
along with whatever is in lib/site-packages).  I'm not sure of the exact
version I was using when it was dying (I want to say somewhere around
3660-69, but I tried a lot last week without success).

Cheers,
William

On 8/6/07, Michael Droettboom [EMAIL PROTECTED] wrote:

 william ratcliff wrote:
  No, with whatever is in the current version of svn, it now works on the
  intel quad as well.  Thanks!

 That's great news!  While it's great to hear that it's working, it would
 be even better to track down the cause of the failure, if possible.

 Do you mean the current version of SVN of numpy or matplotlib?  It
 doesn't like there were any commits to matplotlib over the weekend.

 Do you happen to know what SVN revision was breaking before you updated
 and everything worked?  When you finally updated and things worked, did
 you clean the build directory by any chance?  Python distutils doesn't
 always track dependencies correctly and rebuild enough stuff, which can
 sometimes be the cause of problems.

  I just tried following Michael's build
  instructions (incidentally, could his last additions to setup.py be
  checked in to svn, along with a profile25.bat file?)

 I was wary of committing that change until it had been reviewed by
 someone else with more mingw32 experience.  It worked for me, but it has
 the feel of something slightly hackish...

 For review, in case some other Windows guys are listening, I adding the
 following right before the final distrib = setup(... in setup.py:

  from setupext import get_win32_compiler
  if sys.platform == 'win32' and get_win32_compiler() == 'mingw32':
  for module in ext_modules:
  module.libraries.append(msvcrt)

 As for profile25.bat, I can't find it in SVN.  Maybe whoever is
 responsible for win32_static.tar.gz needs to do it.  Not sure...

 Cheers,
 Mike



profile25.bat_text
Description: Binary data
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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

One more datapoint--I am becoming suspicious that this could be an arch
problem.  A colleague was able to build from source under cygwin on his
rather old laptop.  However, another colleague and myself have rather new
computers and both failed (with different errors in the verbose mode).  I
just tried following Michael's build instructions (incidentally, could his
last additions to setup.py be checked in to svn, along with a
profile25.batfile?) on an old windows box that we have lying around
here and it also
worked well and I was able to run the embedding_in_wx4.py example without
any problems.

The computer that I've been having all of the problems on also was
relatively clean--so, there are only two things I can think of--either some
bizarre clash with the version of numpy that I built from source off of svn
(which passed all of its tests, so I doubt it), or an arch dependence.  I
have an intel quad and my colleage has a duo, so perhaps there's a problem
with computers with multiple processors?  I will check the numpy issue later
today.

Thanks again,
William

On 8/2/07, william ratcliff [EMAIL PROTECTED] wrote:

 Oh--sorry I didn't read carefully--I don't need to install from source if
 there is a binary of the current svn version.

 Thanks!!

 William


 On 8/2/07, william ratcliff [EMAIL PROTECTED] wrote:
 
  One of my colleagues, Paul Kienzle has made a number of additions to
  matplotlib for interacting with artists.  I need to use some of those
  additions--which are not included in the stable release.  Paul's on
  vacation, so I am trying to start from source.
 
  Thanks,
  William
 
  On 8/2/07, John Hunter  [EMAIL PROTECTED] wrote:
  
   On 8/2/07, william ratcliff [EMAIL PROTECTED] wrote:
Thanks again for all your work on this.  I moved my old minGW and
   installed
MinGW-5.1.3 , and was already running the others--except numpy, I
   have the
latest version from svn, which I compiled and built fine after
   building
atlas.  I checked out matplotlib from svn and did the same as you
--I didn't try using the importlib batch file--I have a
   libpython25.a--so,
after changing the profile24.bat to profile25.bat with appropriate
   path
changes and your modifications to setup.py, I built it.  I then
   installed
it--no problems yet.  I then tried to use it with
   embedding_in_wx4.py and
python crashes and burns.  I find that it crashes with the same
   LazyValue
error. Something similar happened to one of my colleagues who tried
   building
with visual studio instead of mingw.  He's given up and is now
   running it on
his Mac.  Sadly, I don't have that option.  Does anyone else have
   any ideas?
  
   Charlie Moad does our win32 builds for releases -- Charlie if you get
   a minute could you see if your build pipeline is still working OK with
  
   the recent svn changes, and if so take pity on poor William and send
   him an installer?
  
   Or is there some reason you *need* to be building from src William?
  
   Thanks,
   JDH
  
 
 

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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

Thanks again for all your work on this.  I moved my old minGW and installed
MinGW-5.1.3, and was already running the others--except numpy, I have the
latest version from svn, which I compiled and built fine after building
atlas.  I checked out matplotlib from svn and did the same as you
--I didn't try using the importlib batch file--I have a libpython25.a--so,
after changing the profile24.bat to profile25.bat with appropriate path
changes and your modifications to setup.py, I built it.  I then installed
it--no problems yet.  I then tried to use it with embedding_in_wx4.py and
python crashes and burns.  I find that it crashes with the same LazyValue
error. Something similar happened to one of my colleagues who tried building
with visual studio instead of mingw.  He's given up and is now running it on
his Mac.  Sadly, I don't have that option.  Does anyone else have any ideas?

Thanks,
William

On 8/2/07, Michael Droettboom [EMAIL PROTECTED] wrote:

 Well, the good news is that I was able to get it to compile and run the
 wxPython backend on Windows.  The bad news is that my symptoms are different
 enough from yours that I'm not sure this will help you.

 I started with a reasonably clean Windows XP SP2 machine with no
 development tools on it.  I installed (using the standard binary installers)
 the most recent stable releases of the following:

 - Python 2.5.1 (python.org)
 - wxPython-2.8.4.0
 - numpy-1.0.3
 - MinGW-5.1.3 (selecting the current release option)
 - MSys-1.0.10

 I checked out the latest matplotlib from svn (r3662).

 I downloaded and uncompressed win32_static from here:
 http://matplotlib.sourceforge.net/win32_static.tar.gz

 I did not do the pexports step, as I don't think MinGW requires it any
 longer.

 I updated profile24.bat to point at my new Python 2.5 (this should
 probably be added to win32_static when someone gets a chance).

 I then built and installed using:

 python setup.py build --compiler=mingw32 install

 (Note that I didn't build and use the Windows installer as the
 instructions suggest -- I doubt that makes a difference, though).

 It built fine the first time.

 Then I ran into problems.  When importing certain extension modules
 (ft2font, _transforms etc.), but not others (ttconv), I got a dialog with
 the error message:

   The procedure entry point _ctype could not be located in
 the dynamic link library msvcr71.dll

 ...and then the module would fail to load.

 This is quite different from what William was seeing, since for him the
 modules were obviously loading and then failing in the initialization code.

 Googling tells me that this is because libstdc++ (specifically the
 string and iostream stuff) depends on _ctype for determining the types
 of various ASCII characters, which was in msvcrt.dll but was removed from
 msvcrt71.dll.  Python2.5 is built with and therefore requires its
 extensions to link to msvcrt71.dll, so that's what you get by
 default.  Fortunately, it doesn't seem to hurt to link to both.  I added the
 following to setup.py, right before the final distrib = setup(...
 section:

 from setupext import get_win32_compiler
 if sys.platform == 'win32' and get_win32_compiler() == 'mingw32':
 for module in ext_modules:
 module.libraries.append(msvcrt)

 After this change, I was able to run embedding_in_wx4.py and get a window
 with a plot in it.  Everything *seems* to be in order.

 William, I'm really curious if the above fix solves your problem.  I
 probably shouldn't spend too much more time on this myself, as Windows isn't
 a very common platform for us (by that I mean my employer, STScI, not
 matplotlib as a whole).  If I can admit selfishness, I really just wanted to
 make sure I hadn't hosed anything with my recent setup.py changes.  I
 think that has been ruled out, and instead we now have what looks like a big
 amorphous configuration-difference problem.

 Cheers,
 Mike

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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

Oh--sorry I didn't read carefully--I don't need to install from source if
there is a binary of the current svn version.

Thanks!!

William


On 8/2/07, william ratcliff [EMAIL PROTECTED] wrote:

 One of my colleagues, Paul Kienzle has made a number of additions to
 matplotlib for interacting with artists.  I need to use some of those
 additions--which are not included in the stable release.  Paul's on
 vacation, so I am trying to start from source.

 Thanks,
 William

 On 8/2/07, John Hunter [EMAIL PROTECTED] wrote:
 
  On 8/2/07, william ratcliff [EMAIL PROTECTED] wrote:
   Thanks again for all your work on this.  I moved my old minGW and
  installed
   MinGW-5.1.3 , and was already running the others--except numpy, I have
  the
   latest version from svn, which I compiled and built fine after
  building
   atlas.  I checked out matplotlib from svn and did the same as you
   --I didn't try using the importlib batch file--I have a
  libpython25.a--so,
   after changing the profile24.bat to profile25.bat with appropriate
  path
   changes and your modifications to setup.py, I built it.  I then
  installed
   it--no problems yet.  I then tried to use it with embedding_in_wx4.py
  and
   python crashes and burns.  I find that it crashes with the same
  LazyValue
   error. Something similar happened to one of my colleagues who tried
  building
   with visual studio instead of mingw.  He's given up and is now running
  it on
   his Mac.  Sadly, I don't have that option.  Does anyone else have any
  ideas?
 
  Charlie Moad does our win32 builds for releases -- Charlie if you get
  a minute could you see if your build pipeline is still working OK with
  the recent svn changes, and if so take pity on poor William and send
  him an installer?
 
  Or is there some reason you *need* to be building from src William?
 
  Thanks,
  JDH
 


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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

I tried the new setup.py script and found:

C:\matplotlib\trunk\matplotlibc:\python25\python.exe setup.py build

BUILDING MATPLOTLIB
matplotlib: 0.90.1 (r3634)
python: 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC
v.1310 32 bit (Intel)]
  platform: win32
Traceback (most recent call last):
  File setup.py, line 122, in module
print_status('Windows version', sys.getwindowsversion())
  File C:\matplotlib\trunk\matplotlib\setupext.py, line 119, in
print_status
subsequent_indent=indent)
  File c:\python25\lib\textwrap.py, line 315, in fill
return w.fill(text)
  File c:\python25\lib\textwrap.py, line 287, in fill
return \n.join(self.wrap(text))
  File c:\python25\lib\textwrap.py, line 274, in wrap
text = self._munge_whitespace(text)
  File c:\python25\lib\textwrap.py, line 122, in _munge_whitespace
text = text.expandtabs()
AttributeError: 'tuple' object has no attribute 'expandtabs'

Any ideas?  Thanks!!!

William


On 8/1/07, Michael Droettboom [EMAIL PROTECTED] wrote:

 william ratcliff wrote:
  I have a question about building from source on windows:
  I have installed freetype2 and libpng, for zlib, I have a collection
  of dlls,
  But, where do I place these so that matplotlib can find them (for the
  include files, libraries, etc.  Are there any that I have to
  rename?)?  I am using mingw for compilation and python 2.5--I have
  built numpy successfully from source and have installed wxpython.  I
  have the latest version of matplotlib from the trunk of the svn
  repository.
 As of yesterday, the setup.py script should give a little more feedback
 about where it is looking for external dependencies.  I took great care
 to not change any of the Windows behavior, since I didn't have a Windows
 box handy to test with.  If you are still stuck after following the
 existing directions, the output of setup.py may offer some clues.

 Cheers,
 Mike

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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

Ok--that did fix the expandtabs bug!  I can now see where there is a failure
in the build:

Found executable C:\Python24\Enthought\MingW\bin\g++.exe
win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x160): undefined
refer
ence to `inflateInit2_'
win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x1d7): undefined
refer
ence to `inflateEnd'
win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x522): undefined
refer
ence to `inflateReset'
win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x5e8): undefined
refer
ence to `inflate'
collect2: ld returned 1 exit status
error: Command g++ -mno-cygwin -shared build\temp.win32-
2.5\Release\src\ft2font
.o build\temp.win32-2.5\Release\src\mplutils.o build\temp.win32-
2.5\Release\cxx\
cxxsupport.o build\temp.win32-2.5\Release\cxx\cxx_extensions.obuild\temp.win32-
2.5\Release\cxx\indirectpythoninterface.o build\temp.win32-
2.5\Release\cxx\cxxex
tensions.o -Lwin32_static\lib -Lc:\python25\libs -Lc:\python25\PCBuild -lz
-lfre
etype -lpython25 -lmsvcr71 -o build\lib.win32-2.5\matplotlib\ft2font.pyd
failed
 with exit status 1


suggestions?

Thanks,
William

On 8/1/07, Michael Droettboom [EMAIL PROTECTED] wrote:

 That's my bad from my changes to setup.py yesterday.

 Please update from SVN and try again.

 Cheers,
 Mike

 william ratcliff wrote:
  I tried the new setup.py script and found:
 
  C:\matplotlib\trunk\matplotlibc:\python25\python.exe setup.py build
 
 
  BUILDING MATPLOTLIB
  matplotlib: 0.90.1 (r3634)
  python: 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC
  v.1310 32 bit (Intel)]
platform: win32
  Traceback (most recent call last):
File setup.py, line 122, in module
  print_status('Windows version', sys.getwindowsversion())
File C:\matplotlib\trunk\matplotlib\setupext.py, line 119, in
  print_status
  subsequent_indent=indent)
File c:\python25\lib\textwrap.py, line 315, in fill
  return w.fill(text)
File c:\python25\lib\textwrap.py, line 287, in fill
  return \n.join( self.wrap(text))
File c:\python25\lib\textwrap.py, line 274, in wrap
  text = self._munge_whitespace(text)
File c:\python25\lib\textwrap.py, line 122, in _munge_whitespace
  text = text.expandtabs()
  AttributeError: 'tuple' object has no attribute 'expandtabs'
 
  Any ideas?  Thanks!!!
 
  William
 
 
  On 8/1/07, * Michael Droettboom* [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
 
  william ratcliff wrote:
   I have a question about building from source on windows:
   I have installed freetype2 and libpng, for zlib, I have a
 collection
   of dlls,
   But, where do I place these so that matplotlib can find them
  (for the
   include files, libraries, etc.  Are there any that I have to
   rename?)?  I am using mingw for compilation and python 2.5--I have
   built numpy successfully from source and have installed
  wxpython.  I
   have the latest version of matplotlib from the trunk of the svn
   repository.
  As of yesterday, the setup.py script should give a little more
  feedback
  about where it is looking for external dependencies.  I took great
  care
  to not change any of the Windows behavior, since I didn't have a
  Windows
  box handy to test with.  If you are still stuck after following the
  existing directions, the output of setup.py may offer some clues.
 
  Cheers,
  Mike
 
 


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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

Is it possible that the freetype library in win32_static is out of date?

Cheers,
William

On 8/1/07, william ratcliff [EMAIL PROTECTED] wrote:

 Ok--that did fix the expandtabs bug!  I can now see where there is a
 failure in the build:

 Found executable C:\Python24\Enthought\MingW\bin\g++.exe
 win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x160): undefined
 refer
 ence to `inflateInit2_'
 win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x1d7): undefined
 refer
 ence to `inflateEnd'
 win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x522): undefined
 refer
 ence to `inflateReset'
 win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x5e8): undefined
 refer
 ence to `inflate'
 collect2: ld returned 1 exit status
 error: Command g++ -mno-cygwin -shared build\temp.win32-
 2.5\Release\src\ft2font
 .o build\temp.win32-2.5\Release\src\mplutils.o build\temp.win32-
 2.5\Release\cxx\
 cxxsupport.o 
 build\temp.win32-2.5\Release\cxx\cxx_extensions.obuild\temp.win32-
 2.5\Release\cxx\indirectpythoninterface.o build\temp.win32-
 2.5\Release\cxx\cxxex
 tensions.o -Lwin32_static\lib -Lc:\python25\libs -Lc:\python25\PCBuild -lz
 -lfre
 etype -lpython25 -lmsvcr71 -o build\lib.win32-2.5\matplotlib\ft2font.pyd
 failed
  with exit status 1


 suggestions?

 Thanks,
 William

 On 8/1/07, Michael Droettboom [EMAIL PROTECTED] wrote:
 
  That's my bad from my changes to setup.py yesterday.
 
  Please update from SVN and try again.
 
  Cheers,
  Mike
 
  william ratcliff wrote:
   I tried the new setup.py script and found:
  
   C:\matplotlib\trunk\matplotlibc:\python25\python.exe setup.py build
  
  
 
   BUILDING MATPLOTLIB
   matplotlib: 0.90.1 (r3634)
   python: 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC
   v.1310 32 bit (Intel)]
 platform: win32
   Traceback (most recent call last):
 File setup.py, line 122, in module
   print_status('Windows version', sys.getwindowsversion())
 File C:\matplotlib\trunk\matplotlib\setupext.py, line 119, in
   print_status
   subsequent_indent=indent)
 File c:\python25\lib\textwrap.py, line 315, in fill
   return w.fill(text)
 File c:\python25\lib\textwrap.py, line 287, in fill
   return \n.join( self.wrap(text))
 File c:\python25\lib\textwrap.py, line 274, in wrap
   text = self._munge_whitespace(text)
 File c:\python25\lib\textwrap.py, line 122, in _munge_whitespace
   text = text.expandtabs()
   AttributeError: 'tuple' object has no attribute 'expandtabs'
  
   Any ideas?  Thanks!!!
  
   William
  
  
   On 8/1/07, * Michael Droettboom*  [EMAIL PROTECTED]
   mailto:[EMAIL PROTECTED] wrote:
  
   william ratcliff wrote:
I have a question about building from source on windows:
I have installed freetype2 and libpng, for zlib, I have a
  collection
of dlls,
But, where do I place these so that matplotlib can find them
   (for the
include files, libraries, etc.  Are there any that I have to
rename?)?  I am using mingw for compilation and python 2.5--Ihave
built numpy successfully from source and have installed
   wxpython.  I
have the latest version of matplotlib from the trunk of the svn
repository.
   As of yesterday, the setup.py script should give a little more
   feedback
   about where it is looking for external dependencies.  I took great
   care
   to not change any of the Windows behavior, since I didn't have a
   Windows
   box handy to test with.  If you are still stuck after following
  the
   existing directions, the output of setup.py may offer some clues.
  
   Cheers,
   Mike
  
  
 
 

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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

 to use pkg-config to determine the freetype
 dependencies where possible, but that inadvertently broke Windows.)

 Please 'svn up' and try again.  Sorry for the inconvience.

 Cheers,
 Mike

 william ratcliff wrote:
  Is it possible that the freetype library in win32_static is out of date?
 
  Cheers,
  William
 
  On 8/1/07, *william ratcliff*  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
 
  Ok--that did fix the expandtabs bug!  I can now see where there is
  a failure in the build:
 
  Found executable C:\Python24\Enthought\MingW\bin\g++.exe
  win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x160):
  undefined refer
  ence to `inflateInit2_'
  win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x1d7):
  undefined refer
  ence to `inflateEnd'
  win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x522):
  undefined refer
  ence to `inflateReset'
  win32_static\lib/libfreetype.a(ftgzip.o):ftgzip.c:(.text+0x5e8):
  undefined refer
  ence to `inflate'
  collect2: ld returned 1 exit status
  error: Command g++ -mno-cygwin -shared build\temp.win32-
  2.5\Release\src\ft2font
  .o build\temp.win32-2.5\Release\src\mplutils.o
  build\temp.win32-2.5\Release\cxx\
  cxxsupport.o build\temp.win32-2.5\Release\cxx\cxx_extensions.o
  build\temp.win32-
  2.5\Release\cxx\indirectpythoninterface.o
  build\temp.win32-2.5\Release\cxx\cxxex
  tensions.o -Lwin32_static\lib -Lc:\python25\libs
  -Lc:\python25\PCBuild -lz -lfre
  etype -lpython25 -lmsvcr71 -o
  build\lib.win32-2.5\matplotlib\ft2font.pyd failed
   with exit status 1
 
 
  suggestions?
 
  Thanks,
  William
 
 
  On 8/1/07, *Michael Droettboom* [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
 
  That's my bad from my changes to setup.py yesterday.
 
  Please update from SVN and try again.
 
  Cheers,
  Mike
 
  william ratcliff wrote:
   I tried the new setup.py script and found:
  
   C:\matplotlib\trunk\matplotlibc:\python25\python.exe
  setup.py build
  
 
 
   BUILDING MATPLOTLIB
   matplotlib: 0.90.1 (r3634)
   python: 2.5.1 (r251:54863, Apr 18 2007,
  08:51:08) [MSC
   v.1310 32 bit (Intel)]
 platform: win32
   Traceback (most recent call last):
 File setup.py, line 122, in module
   print_status('Windows version', sys.getwindowsversion())
 File C:\matplotlib\trunk\matplotlib\setupext.py, line
  119, in
   print_status
   subsequent_indent=indent)
 File c:\python25\lib\textwrap.py, line 315, in fill
   return w.fill(text)
 File c:\python25\lib\textwrap.py, line 287, in fill
   return \n.join( self.wrap(text))
 File c:\python25\lib\textwrap.py, line 274, in wrap
   text = self._munge_whitespace(text)
 File c:\python25\lib\textwrap.py, line 122, in
  _munge_whitespace
   text = text.expandtabs()
   AttributeError: 'tuple' object has no attribute 'expandtabs'
  
   Any ideas?  Thanks!!!
  
   William
  
  
   On 8/1/07, * Michael Droettboom*  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED]
   mailto: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote:
  
   william ratcliff wrote:
I have a question about building from source on windows:
I have installed freetype2 and libpng, for zlib, I have
  a collection
of dlls,
But, where do I place these so that matplotlib can find
  them
   (for the
include files, libraries, etc.  Are there any that I
  have to
rename?)?  I am using mingw for compilation and python
  2.5--I have
built numpy successfully from source and have installed
   wxpython.  I
have the latest version of matplotlib from the trunk of
  the svn
repository.
   As of yesterday, the setup.py script should give a little
  more
   feedback
   about where it is looking for external dependencies.  I
  took great
   care
   to not change any of the Windows behavior, since I didn't
  have a
   Windows
   box handy to test with.  If you are still stuck after
  following the
   existing directions, the output of setup.py may offer
  some clues.
  
   Cheers,
   Mike

Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

If I revert back to 3645, it builds and I can install it--but then I run
into
the original error I was having where I couldn't run the demos:


C:\matplotlib\trunk\matplotlib\examplesc:\python25\python.exe
wxcursor_demo.py
Traceback (most recent call last):
  File wxcursor_demo.py, line 6, in module
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as
FigureCan
vas
  File c:\python25\Lib\site-packages\matplotlib\backends\backend_wxagg.py,
lin
e 24, in module
from backend_agg import FigureCanvasAgg
  File c:\python25\Lib\site-packages\matplotlib\backends\backend_agg.py,
line
86, in module
from matplotlib.mathtext import math_parse_s_ft2font
  File c:\python25\Lib\site-packages\matplotlib\mathtext.py, line 1182, in
mo
dule
class Vlist(List):
  File c:\python25\Lib\site-packages\matplotlib\mathtext.py, line 1189, in
Vli
st
def vpack(self, h=0., m='additional', l=float('inf')):
ValueError: invalid literal for float(): inf

Thanks,
William

On 8/1/07, Michael Droettboom [EMAIL PROTECTED] wrote:

 william ratcliff wrote:
 
  Thanks!  I think that:
  found, but unknown version would be a bit better.
 I'll fix that.
So, it means that it found libpng and freetype.  It says that it
  didn't vind wx-python--but is that only relevant for versions of
  wxpython below 2.8
 Yes, the message should be fixed.  It won't attempt to build the wxAgg
 extension (which isn't needed) in your case anyway.
I am running C:\Python25\Lib\site-packages\wx-2.8-msw-unicode, and
  there is no wx-config directory associated with it.
 That probably just means you don't have the development headers
 installed, which is not necessary in this case.
 
  Also, is there a reason why the compilation is being done with the
  cygwin flag?
 It looks like it's using the -mno-cygwin flag, which is how mingw32 is
 normally selected.

 BTW, any luck when you reverted to an earlier SVN version?  (3645)

 Cheers,
 Mike
 
  Thanks,
  William
 
  On 8/1/07, *Michael Droettboom* [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
 
  william ratcliff wrote:
   A bit strange:
  
   gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes
 -Iwin32_static\include
   -I. -Ic:\python25\include -Ic:\python25\PC -c src/ft2font.cpp -o
   build\temp.win32- 2.5\Release\src\ft2font.o
   g++ -mno-cygwin -shared build\temp.win32-
 2.5\Release\src\ft2font.o
   build\temp.win32-2.5\Release\src\mplutils.o
   build\temp.win32-2.5\Release\cxx\cxxsupport.o
   build\temp.win32- 2.5\Release\cxx\cxx_extensions.o
   build\temp.win32-2.5\Release\cxx\indirectpythoninterface.o
   build\temp.win32-2.5\Release\cxx\cxxextensions.o-Lwin32_static\lib
   -Lc:\python25\libs -Lc:\python25\PCBuild -lfreetype -lz -lpython25
   -lmsvcr71 -o build\lib.win32-2.5\matplotlib\ft2font.pyd
   Found executable c:\python24\enthought\mingw\bin\g++.exe
  
  build\temp.win32-2.5\Release\src\ft2font.o:ft2font.cpp:
 (.text+0x317):
   undefined reference to `_imp__FT_Done_FreeType'
  These _imp__ things have something to do with how mingw32 links with
  libraries.  I'm afraid I'm getting a little out of my element
  there.  If
  you want to rule out any unintentional consequences of my very
 recent
  setup.py changes (which were primarily to give more information,
  rather
  than change how things work), you can revert SVN a bit svn -r
  3645 and
  see if things are any different.  Please let me know how that goes
  either way.
   But, I noticed in the beginning:
  
  
 
 
   BUILDING MATPLOTLIB
   matplotlib: 0.90.1 (r3634)
   python: 2.5.1 (r251:54863, Apr 18 2007,
  08:51:08) [MSC
   v.1310 32 bit (Intel)]
 platform: win32
  Windows version: (5, 1, 2600, 2, 'Service Pack 2')
  
   REQUIRED DEPENDENCIES
   Setting mingw32 as default compiler for nt.
numpy: 1.0.4.dev3937
freetype2: unknown (no pkg-config)
  
   OPTIONAL DEPENDENCIES
 Gtk+: no
   * Building for Gtk+ requires pygtk; you
 must
   be able
   * to import gtk in your build/install
   environment
  Tkinter: Tkinter: 50704, Tk: 8.4, Tcl: 8.4
 wxPython: no
   *  WXAgg's accelerator requires
  `wx-config'.  The
   * `wx-config' executable could not be
  located
   in any
   * directory of the PATH environment
  variable.
   If you
   * want to build WXAgg, and wx-config is
  in some
   * other location or has some other name,
  set

Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

Thanks!  I think that:
found, but unknown version would be a bit better.  So, it means that it
found libpng and freetype.  It says that it didn't vind wx-python--but is
that only relevant for versions of wxpython below 2.8  I am running
C:\Python25\Lib\site-packages\wx-2.8-msw-unicode, and there is no wx-config
directory associated with it.

Also, is there a reason why the compilation is being done with the cygwin
flag?

Thanks,
William

On 8/1/07, Michael Droettboom [EMAIL PROTECTED] wrote:

 william ratcliff wrote:
  A bit strange:
 
  gcc -mno-cygwin -O2 -Wall -Wstrict-prototypes -Iwin32_static\include
  -I. -Ic:\python25\include -Ic:\python25\PC -c src/ft2font.cpp -o
  build\temp.win32-2.5\Release\src\ft2font.o
  g++ -mno-cygwin -shared build\temp.win32- 2.5\Release\src\ft2font.o
  build\temp.win32-2.5\Release\src\mplutils.o
  build\temp.win32-2.5\Release\cxx\cxxsupport.o
  build\temp.win32-2.5\Release\cxx\cxx_extensions.o
  build\temp.win32-2.5\Release\cxx\indirectpythoninterface.o
  build\temp.win32-2.5\Release\cxx\cxxextensions.o -Lwin32_static\lib
  -Lc:\python25\libs -Lc:\python25\PCBuild -lfreetype -lz -lpython25
  -lmsvcr71 -o build\lib.win32-2.5\matplotlib\ft2font.pyd
  Found executable c:\python24\enthought\mingw\bin\g++.exe
  build\temp.win32-2.5\Release\src\ft2font.o:ft2font.cpp:(.text+0x317):
  undefined reference to `_imp__FT_Done_FreeType'
 These _imp__ things have something to do with how mingw32 links with
 libraries.  I'm afraid I'm getting a little out of my element there.  If
 you want to rule out any unintentional consequences of my very recent
 setup.py changes (which were primarily to give more information, rather
 than change how things work), you can revert SVN a bit svn -r 3645 and
 see if things are any different.  Please let me know how that goes
 either way.
  But, I noticed in the beginning:
 
 
 
  BUILDING MATPLOTLIB
  matplotlib: 0.90.1 (r3634)
  python: 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC
  v.1310 32 bit (Intel)]
platform: win32
 Windows version: (5, 1, 2600, 2, 'Service Pack 2')
 
  REQUIRED DEPENDENCIES
  Setting mingw32 as default compiler for nt.
   numpy: 1.0.4.dev3937
   freetype2: unknown (no pkg-config)
 
  OPTIONAL DEPENDENCIES
Gtk+: no
  * Building for Gtk+ requires pygtk; you must
  be able
  * to import gtk in your build/install
  environment
 Tkinter: Tkinter: 50704, Tk: 8.4, Tcl: 8.4
wxPython: no
  *  WXAgg's accelerator requires
 `wx-config'.  The
  * `wx-config' executable could not be located
  in any
  * directory of the PATH environment variable.
  If you
  * want to build WXAgg, and wx-config is in some
  * other location or has some other name, set the
  * WX_CONFIG environment variable to the full
  path of
  * the executable like so:  export
  WX_CONFIG=/usr/lib
  * /wxPython-2.6.1.0-gtk2-unicode/bin/wx-config
  Qt: no
 Qt4: no
   Cairo: no
  libpng: unknown (no pkg-config)
 
  [Edit setup.cfg to suppress the above messages]
 
 
 
  Does this mean that it's unable to find the win32_static directory?  I
  have in in the matplotlibdirectory.
 No.  The line:

freetype2: unknown (no pkg-config)

 indicates that the freetype2 headers were found, but it couldn't
 determine the version through pkg-config.  If it wasn't able to find it,
 it would hav said freetype2: no.  On second glance, I admit that
 message might be confusing.  Do you think found, but unknown version
 would be better?
I think I'm confused on something:  In the win32 directory, there
  are instructions for building under cygwin--but is it necessary to
  build, or does matplotlib just require the library files and their
  headers, which it should be able to find in the win32_static directory?
 I'll defer on that question to someone with more matplotlib + Windows
 experience.

 Cheers,
 Mike

 
  Cheers,
  William
 
  On 8/1/07, *Michael Droettboom* [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
 
  It looks like I screwed up the order of libraries between
  freetype2 and
  zlib.  (It was updated to use pkg-config to determine the freetype
  dependencies where possible, but that inadvertently broke Windows.)
 
  Please 'svn up' and try again.  Sorry for the inconvience.
 
  Cheers,
  Mike
 
  william ratcliff wrote:
   Is it possible that the freetype library in win32_static is out
  of date?
  
   Cheers

Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

Now, it no longer gives rise to the previous error, but python crashes when
I run the embedding_in_wx4.py example.

William

On 8/1/07, John Hunter [EMAIL PROTECTED] wrote:

 On 8/1/07, Michael Droettboom [EMAIL PROTECTED] wrote:

   c:\python25\Lib\site-packages\matplotlib\mathtext.py,
   line 1189, in Vli
   st
   def vpack(self, h=0., m='additional', l=float('inf')):
   ValueError: invalid literal for float(): inf

  I'm not opposed to importing mathtext on demand only, but that would be
 new.

 I see, it wasn't clear to me on my first look that the bug was
 triggered at module load time.  I had assumed the bug was triggered by
 *using* mathtext.  Since you seem to have found the fix (numpy.inf)
 I'm happy to leave it as is.

 JDH

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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

Yes.  It crashes at the savefig line.

On 8/1/07, Michael Droettboom [EMAIL PROTECTED] wrote:

 william ratcliff wrote:
  Ok--I reverted to head and it fixed the undefined references error and
  everything seems to build normally.
 Well, that's partially good news...
  But, if I try to run the embedding_in_wx4.py example, it crashes
  python 2.5.1
 
  If I install from the .msi then things do work in python 2.5.1, so it
  must be something with the build.
 Just to clarify, you mean the 0.90.1 installer downloaded from
 SourceForge?
 
  I also tried to just start python from the command window, then ran:
  import numpy as N
  x=N.array([1,2,3])
  from pylab import *
  plot(x,x)
  show()
 
  The plot command generates a Line2D instance,
  but the show() command kills python in the same way that the embedding
  example does.  In the embedding example, I notice that the CanvasFrame
  is generated before the crash.
 Does it also crash if you use the Agg backend alone and save to an image
 file?

 import matplotlib
 matplotlib.use(Agg)
 from pylab import *
 plot([1,2,3])
 savefig(test.png)

 Cheers,
 Mike
 
  On 8/1/07, *william ratcliff* [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
 
  Let me try this.
 
  On 8/1/07, *Michael Droettboom*  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
 
  I'm going to summarize, just to make sure I have everything
  straight.
 
  1) HEAD doesn't build (you get lots of undefined reference to
  `_imp__FT_Done_FreeType')
  2) revision 3645 (yesterday before my setup.py changes),
  builds, but you
  got the float('inf') error (which is now fixed)
  3) much earlier revisions (3608) have other issues (which seem
  to be
  related to out-of-date wxPython code)
 
  I have just committed a possible fix for 1).  You may want to
 try
  updating to HEAD and building that.
 
  If that doesn't work for you, I'm worried about things getting
  out of
  hand and annoying a lot of people with my (well intentioned)
  setup.py
  changes yesterday.  If that's the case, I will revert my build
  changes
  until I have a chance to sit in front of a Windows box and
  figure out
  what's really going wrong.
 
  Apologies all around,
  Mike
 
  william ratcliff wrote:
   3608 also runs into problems of linking with the freetype
  libraries.
   Some much older versions (say in the 3500s) compile, but
  still crash
   python2.5.1 with errors like:
  
   C:\matplotlib\trunk\matplotlib\examplesc:\python25\python.exe
   embedding_in_wx4.
   py
   embedding_in_wx4.py:24: DeprecationWarning: The wxPython
  compatibility
   package i
   s no longer automatically generated or actively
  maintained.  Please
   switch to th
   e wx package as soon as possible.
 from wxPython.wx import *
  
   Thanks again for the help!
  
   William
  
   On 8/1/07, *John Hunter*  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] mailto: [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED]
wrote:
  
   On 8/1/07, william ratcliff  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED]
   mailto: [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
from matplotlib.mathtext import math_parse_s_ft2font
  File
c:\python25\Lib\site-packages\matplotlib\mathtext.py,
line 1182, in mo
dule
class Vlist(List):
  File
c:\python25\Lib\site-packages\matplotlib\mathtext.py,
line 1189, in Vli
st
def vpack(self, h=0., m='additional',
 l=float('inf')):
ValueError: invalid literal for float(): inf
  
   It's not clear to me why you should be hitting mathtext
  at all, since
   the wxcursor_demo.py does not use it, as far as I can
  tell.  Michael,
   would any of your earlier work caused him to get into
  mathtext
   inapproriately?  You may need to revert a little farther,
  William, eg
   to r3608 while we get this sorted out.
  
   JDH
  
  
 
 
 


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Re: [Matplotlib-users] question about building from source on windows

[william ratcliff]

No, thank you for trying so hard.

I just tried running setup.py with VERBOSE=True on a clean installation.
when it crashes I get:
LazyValue::init_type

does this mean anything to anyone?

William

On 8/1/07, Michael Droettboom [EMAIL PROTECTED] wrote:

 It's probably something in C++ backend code for Agg.  Maybe someone else
 on this list knows the last time it built and worked on Windows and can
 track down a change that may have broken it.

 It will probably take some work with a debugger to figure out where it
 is crashing.  I'd be completely guessing at this point.  If you feel
 adventurous and can get a C backtrace out of the crash somehow, (does
 gdb work with mingw?), that could be useful.  Barring that, maybe one of
 the other Windows folk on this list has some ideas.

 Thanks for your considerable patience ;)

 Cheers,
 Mike

 william ratcliff wrote:
  Yes.  It crashes at the savefig line.
 
  On 8/1/07, *Michael Droettboom* [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
 
  william ratcliff wrote:
   Ok--I reverted to head and it fixed the undefined references
  error and
   everything seems to build normally.
  Well, that's partially good news...
   But, if I try to run the embedding_in_wx4.py example, it crashes
   python 2.5.1
  
   If I install from the .msi then things do work in python 2.5.1,
  so it
   must be something with the build.
  Just to clarify, you mean the 0.90.1 installer downloaded from
  SourceForge?
  
   I also tried to just start python from the command window, then
 ran:
   import numpy as N
   x=N.array([1,2,3])
   from pylab import *
   plot(x,x)
   show()
  
   The plot command generates a Line2D instance,
   but the show() command kills python in the same way that the
  embedding
   example does.  In the embedding example, I notice that the
  CanvasFrame
   is generated before the crash.
  Does it also crash if you use the Agg backend alone and save to an
  image
  file?
 
  import matplotlib
  matplotlib.use(Agg)
  from pylab import *
  plot([1,2,3])
  savefig(test.png)
 
  Cheers,
  Mike
  
   On 8/1/07, *william ratcliff*  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED]
   mailto:[EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED] wrote:
  
   Let me try this.
  
   On 8/1/07, *Michael Droettboom*  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED]
   mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote:
  
   I'm going to summarize, just to make sure I have
 everything
   straight.
  
   1) HEAD doesn't build (you get lots of undefined
  reference to
   `_imp__FT_Done_FreeType')
   2) revision 3645 (yesterday before my setup.py changes),
   builds, but you
   got the float('inf') error (which is now fixed)
   3) much earlier revisions (3608) have other issues
  (which seem
   to be
   related to out-of-date wxPython code)
  
   I have just committed a possible fix for 1).  You may
  want to try
   updating to HEAD and building that.
  
   If that doesn't work for you, I'm worried about things
  getting
   out of
   hand and annoying a lot of people with my (well
 intentioned)
   setup.py
   changes yesterday.  If that's the case, I will revert my
  build
   changes
   until I have a chance to sit in front of a Windows box and
   figure out
   what's really going wrong.
  
   Apologies all around,
   Mike
  
   william ratcliff wrote:
3608 also runs into problems of linking with the
 freetype
   libraries.
Some much older versions (say in the 3500s) compile, but
   still crash
python2.5.1 with errors like:
   
   
  C:\matplotlib\trunk\matplotlib\examplesc:\python25\python.exe
embedding_in_wx4.
py
embedding_in_wx4.py:24: DeprecationWarning: The wxPython
   compatibility
package i
s no longer automatically generated or actively
   maintained.  Please
switch to th
e wx package as soon as possible.
  from wxPython.wx import *
   
Thanks again for the help!
   
William
   
On 8/1/07, *John Hunter*  [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED]
   mailto: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]
  mailto: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]
   mailto:[EMAIL PROTECTED] mailto:[EMAIL

[Matplotlib-users] question about building from source on windows

[william ratcliff]

I have a question about building from source on windows:
I have installed freetype2 and libpng, for zlib, I have a collection of
dlls,
But, where do I place these so that matplotlib can find them (for the
include files, libraries, etc.  Are there any that I have to rename?)?  I am
using mingw for compilation and python 2.5--I have built numpy successfully
from source and have installed wxpython.  I have the latest version of
matplotlib from the trunk of the svn repository.

Thanks,
William
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