matplotlib-users Mailing List for matplotlib

Alan G Isaac wrote:
> I need to make some dual y-scale plots:
> on time series plotted against the left axis,
> with a second plotted again the right axis (which has its 
> own scale). I think Matplotlib did not used to provide
> dual scale plotting: is it now available?
> 
You mean something like two_scales.py in the mpl examples? (in svn or download 
from the homepage)
-- 
cheers,
steve
Random number generation is the art of producing pure gibberish as quickly as 
possible.

I need to make some dual y-scale plots:
on time series plotted against the left axis,
with a second plotted again the right axis (which has its 
own scale). I think Matplotlib did not used to provide
dual scale plotting: is it now available?
Thank you,
Alan Isaac

Thanks Michael! I installed fondu and converted my Helvetica.dfont to .ttf
and put them in /Users/ybendana/Library/Fonts. However, the fontManager wa=
s
still picking up the /System/Library/Fonts/Helvetica.dfont. As a
workaround, I edited font_manager.py line 209 in findSystemFonts() to build
the font cache from only .ttf fonts:
 for f in OSXInstalledFonts(fontext=3Dfontext):
After deleting the ~/.matplotlib/ttfont.cache, it now picks up the
Helvetica.ttf font.
yuri
On 9/12/07, Michael Droettboom <md...@st...> wrote:
>
> Yuri,
>
> A .dfont file can be seen as a collection of .ttf files. A .dfont
> generally will contain the regular, bold and italic versions of a font,
> but matplotlib is hardcoded to only look at the first of them. So when
> you request "sans-serif", you get Helvetica. When you request
> "sans-serif:bold", it fails, (since it can't get to the bold version)
> and falls back on the default matplotlib font, Vera Sans Regular.
>
> Long term, we probably need to improve matplotlib to support dfonts
> correctly. As a workaround, you can adjust your font settings to refer
> to .ttf fonts, or convert your dfonts to ttf fonts using fondu.
>
> Cheers,
> Mike
>
> Yuri Benda=F1a wrote:
> > Hi,
> >
> > I'm a new user and I installed matplotlib 0.90.1 on Mac 10.4.9. I'm
> > using the WxAgg backend, which I installed using MacPorts. I haven't
> > had a problem so far except when I try to change font properties like
> > family, fontname, and weight. For example, the following doesn't work=
:
> >
> > figtext(0.8,0.3,"Large Folds", weight=3D'bold', fontname=3D'Helvetica')
> >
> > I only get the default font (I believe it's Vera) and no bold. This
> > also happens with the PDF backend so I don't think that's the problem.
> > I checked the fontManager object and verified that it knows where the
> > fonts are installed on my Mac. I can call findfont() and it does retur=
n
> > the Helvetica font:
> >
> > In [10]: fm.fontManager.findfont(fm.FontProperties('sans-serif'))
> > Out[10]: '/System/Library/Fonts/Helvetica.dfont'
> >
> > Does anyone have a solution for this?
> >
> > thanks,
> >
> > yuri
> >
> >
> >
> > -----------------------------------------------------------------------=
-
> >
> >
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>
> --
> Michael Droettboom
> Operations and Engineering Division
> Space Telescope Science Institute
> Operated by AURA for NASA
>
--=20
Yuri Benda=F1a
Graduate Student
UC Berkeley/UCSF Joint Graduate Group in Bioengineering

"Yuri Bendaña" <ybe...@be...>
writes:
> For example, the following doesn't work:
> figtext(0.8,0.3,"Large Folds", weight='bold', fontname='Helvetica')
> I only get the default font (I believe it's Vera) and no bold. 
Yes, I think that's a known bug. The font manager doesn't know how to
read the bold version of Helvetica from Helvetica.dfont. A workaround is
to run fondu (http://fondu.sourceforge.net/) on Helvetica.dfont, put the
resulting ttf files in some directory and use them directly:
In [20]: from matplotlib.font_manager import FontProperties
In [21]: fp=FontProperties(fname='/tmp/HelveticaBold.ttf',size=14)
In [22]: text(.1,.1,'this is bold',fontproperties=fp)
-- 
Jouni K. Seppänen
http://www.iki.fi/jks

Yuri,
A .dfont file can be seen as a collection of .ttf files. A .dfont 
generally will contain the regular, bold and italic versions of a font, 
but matplotlib is hardcoded to only look at the first of them. So when 
you request "sans-serif", you get Helvetica. When you request 
"sans-serif:bold", it fails, (since it can't get to the bold version) 
and falls back on the default matplotlib font, Vera Sans Regular.
Long term, we probably need to improve matplotlib to support dfonts 
correctly. As a workaround, you can adjust your font settings to refer 
to .ttf fonts, or convert your dfonts to ttf fonts using fondu.
Cheers,
Mike
Yuri Bendaña wrote:
> Hi,
> 
> I'm a new user and I installed matplotlib 0.90.1 on Mac 10.4.9. I'm 
> using the WxAgg backend, which I installed using MacPorts. I haven't 
> had a problem so far except when I try to change font properties like 
> family, fontname, and weight. For example, the following doesn't work:
> 
> figtext(0.8,0.3,"Large Folds", weight='bold', fontname='Helvetica')
> 
> I only get the default font (I believe it's Vera) and no bold. This 
> also happens with the PDF backend so I don't think that's the problem. 
> I checked the fontManager object and verified that it knows where the 
> fonts are installed on my Mac. I can call findfont() and it does return 
> the Helvetica font:
> 
> In [10]: fm.fontManager.findfont(fm.FontProperties('sans-serif'))
> Out[10]: '/System/Library/Fonts/Helvetica.dfont'
> 
> Does anyone have a solution for this?
> 
> thanks,
> 
> yuri
> 
> 
> 
> ------------------------------------------------------------------------
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
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> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Matplotlib-users mailing list
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-- 
Michael Droettboom
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

On 9/12/07, Jouni K. Sepp=E4nen <jk...@ik...> wrote:
>
> Martin Bures <nee...@ya...>
> writes:
>
> > MATLAB has a command, print, and it allows you to output a figure to a
> > file, such as a .ps file and it has a switch '-append' so that you can
> > append multiple plots to the same file.
> >
> > Is there a switch for the pylab command, 'savefig' to do the same
> > thing?
>
> No, at least not currently.
>
> --
> Jouni K. Sepp=E4nen
> http://www.iki.fi/jks
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
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>
somthing like append(filename) will be the best thing to do it.
but this will not work for *.png files.
I am not familiar with EPS and PS. I thought only ps supports
multipages, and each page has one figure.
Since my data analysis and plotting works sometimes on Linux(office),
sometimes Windows (home). A native support from matplotlib would be
fantasitic.
Thanks for the suggestions.

Hi,
I'm a new user and I installed matplotlib 0.90.1 on Mac 10.4.9. I'm using
the WxAgg backend, which I installed using MacPorts. I haven't had a
problem so far except when I try to change font properties like family,
fontname, and weight. For example, the following doesn't work:
figtext(0.8,0.3,"Large Folds", weight='bold', fontname='Helvetica')
I only get the default font (I believe it's Vera) and no bold. This also
happens with the PDF backend so I don't think that's the problem. I checked
the fontManager object and verified that it knows where the fonts are
installed on my Mac. I can call findfont() and it does return the Helvetica
font:
In [10]: fm.fontManager.findfont(fm.FontProperties('sans-serif'))
Out[10]: '/System/Library/Fonts/Helvetica.dfont'
Does anyone have a solution for this?
thanks,
yuri

Christoph Scheit ha scritto:
> Hi,
> 
> running a python-script using matplotlib I get the following error message:
> 
> sh: mc: line 1: syntax error: unexpected end of file
> sh: error importing function definition for `mc'
> sh: mc: line 1: syntax error: unexpected end of file
> sh: error importing function definition for `mc'
Your errors come from the shell interpreter. It seems that sh, and not 
python, is parsing the script.
Add the following line at the start:
#!/usr/bin/env python
and try again.
m.
-- 
Massimo Sandal
University of Bologna
Department of Biochemistry "G.Moruzzi"
snail mail:
Via Irnerio 48, 40126 Bologna, Italy
email:
mas...@un...
tel: +39-051-2094388
fax: +39-051-2094387

Martin Bures <nee...@ya...>
writes:
> MATLAB has a command, print, and it allows you to output a figure to a
> file, such as a .ps file and it has a switch '-append' so that you can
> append multiple plots to the same file.
>
> Is there a switch for the pylab command, 'savefig' to do the same
> thing?
No, at least not currently.
-- 
Jouni K. Seppänen
http://www.iki.fi/jks

I recently asked a question along the same lines...
MATLAB has a command, print, and it allows you to output a figure to a file, such as a .ps file and it has a switch '-append' so that you can append multiple plots to the same file.
Is there a switch for the pylab command, 'savefig' to do the same thing? There does not seem to be an equivalent print command.
Ryan Krauss <rya...@gm...> wrote: It is probably overkill, but I use Latex for this. You can fairly
easily have Python generate a text file that is the Latex input,
including captions for each figure. And then call latex using
os.system.
This might get you a psmerge for windows:
http://gnuwin32.sourceforge.net/packages/psutils.htm
Ryan
On 9/12/07, Manuel Metz wrote:
> On a Linux box:
> psmerge -ooutfile.ps figure1.eps figure2.eps
>
> Anyway, I guess you need an external tool to do this ...
>
> Manuel
>
> Lingyun Yang wrote:
> > Hi,
> >
> > I am using matplotlib to visualize my data, but the data sometimes have
> > several sets.
> > Can I plot each set as usual to a EPS file, and combine these EPS file into
> > a single ps file,
> > each page of this ps file is only one EPS file I got before.
> >
> >
> > Thanks.
> >
> > Lingyun
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > -------------------------------------------------------------------------
> > This SF.net email is sponsored by: Microsoft
> > Defy all challenges. Microsoft(R) Visual Studio 2005.
> > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Matplotlib-users mailing list
> > Mat...@li...
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
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Hi,
running a python-script using matplotlib I get the following error message:
sh: mc: line 1: syntax error: unexpected end of file
sh: error importing function definition for `mc'
sh: mc: line 1: syntax error: unexpected end of file
sh: error importing function definition for `mc'
The script starts with a simple example:
...
from pylab import *
fig = figure(1)
plot([1,2,3])
close(fig)
...
Using matplotlib from IPython works fine. The script above has been invoked
via Pydev
 Thanks in advance,
Chris
============================
M.Sc. Christoph Scheit
Institute of Fluid Mechanics
FAU Erlangen-Nuremberg
Cauerstrasse 4
D-91058 Erlangen
Phone: +49 9131 85 29508
============================

It is probably overkill, but I use Latex for this. You can fairly
easily have Python generate a text file that is the Latex input,
including captions for each figure. And then call latex using
os.system.
This might get you a psmerge for windows:
http://gnuwin32.sourceforge.net/packages/psutils.htm
Ryan
On 9/12/07, Manuel Metz <mm...@as...> wrote:
> On a Linux box:
> psmerge -ooutfile.ps figure1.eps figure2.eps
>
> Anyway, I guess you need an external tool to do this ...
>
> Manuel
>
> Lingyun Yang wrote:
> > Hi,
> >
> > I am using matplotlib to visualize my data, but the data sometimes have
> > several sets.
> > Can I plot each set as usual to a EPS file, and combine these EPS file into
> > a single ps file,
> > each page of this ps file is only one EPS file I got before.
> >
> >
> > Thanks.
> >
> > Lingyun
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > -------------------------------------------------------------------------
> > This SF.net email is sponsored by: Microsoft
> > Defy all challenges. Microsoft(R) Visual Studio 2005.
> > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Matplotlib-users mailing list
> > Mat...@li...
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Sorry, I reply to myself, the fill function needs the 'facecolor' keyword.
Have a nice day
=2D-=20
Lionel Roubeyrie - lro...@li...
Charg=C3=A9 d'=C3=A9tudes et de maintenance
LIMAIR - la Surveillance de l'Air en Limousin
http://www.limair.asso.fr

Hi all,
trying to fill some shapefiles polygons, I run into trouble like you can se=
e=20
here with the fillstates.py basemap 0.9.5 example:
#####################################
|examples|[1]>run fillstates.py
(273, 5, [-179.14734000000001, 17.884813000000001, 0.0, 0.0], [179.77847,=20
71.352560643999809, 0.0, 0.0])
['PERIMETER', 'DIVISION', 'NAME', 'AREA', 'RINGNUM', 'REGION', 'LSAD', 'LSA=
D_TRANS', 'STATE', 'ST99_D00_I', 'SHAPENUM', 'ST99_D00_']
=2D------------------------------------------------------------------------=
=2D-
<type 'exceptions.ValueError'> Traceback (most recent call last)
/home/lionel/Applications/Python/Scientifique/Basemap/examples/fillstates.p=
y=20
in <module>()
 87 if statenames[nshape] not in ['District of Columbia','Puerto=20
Rico']:
 88 color =3D rgb2hex(colors[statenames[nshape]])
=2D--> 89 p.fill(xx,yy,color,edgecolor=3Dcolor)
 90 # draw meridians and parallels.
 91 m.drawparallels(nx.arange(25,65,20),labels=3D[1,0,0,0])
/usr/lib/python2.5/site-packages/matplotlib/pylab.py in fill(*args, **kwarg=
s)
 1858 hold(h)
 1859 try:
=2D> 1860 ret =3D gca().fill(*args, **kwargs)
 1861 draw_if_interactive()
 1862 except:
/usr/lib/python2.5/site-packages/matplotlib/axes.py in fill(self, *args,=20
**kwargs)
 4225
 4226 patches =3D []
=2D> 4227 for poly in self._get_patches_for_fill(*args, **kwargs):
 4228 self.add_patch( poly )
 4229 patches.append( poly )
/usr/lib/python2.5/site-packages/matplotlib/axes.py in _grab_next_args(self=
,=20
*args, **kwargs)
 426 if not is_string_like(remaining[2]):
 427 raise ValueError, 'third arg must be a format=20
string'
=2D-> 428 for seg in self._plot_3_args(remaining, **kwargs):
 429 yield seg
 430 remaining=3D[]
/usr/lib/python2.5/site-packages/matplotlib/axes.py in _plot_3_args(self,=20
tup3, **kwargs)
 374 x, y, multicol =3D self._xy_from_xy(x, y)
 375
=2D-> 376 linestyle, marker, color =3D _process_plot_format(fmt)
 377
 378 def makeline(x, y):
/usr/lib/python2.5/site-packages/matplotlib/axes.py in=20
_process_plot_format(fmt)
 151 else:
 152 err =3D 'Unrecognized character %c in format string' % c
=2D-> 153 raise ValueError, err
 154
 155 if linestyle is None and marker is None:
<type 'exceptions.ValueError'>: Unrecognized character # in format string
WARNING: Failure executing file: <fillstates.py>
########################################
The same problem occurs with another test, in this case the "Unrecognized=20
character" is "f" :-P
A solution is very welcome!
Thanks
=2D-=20
Lionel Roubeyrie - lro...@li...
Charg=C3=A9 d'=C3=A9tudes et de maintenance
LIMAIR - la Surveillance de l'Air en Limousin
http://www.limair.asso.fr

On a Linux box:
 psmerge -ooutfile.ps figure1.eps figure2.eps
Anyway, I guess you need an external tool to do this ...
Manuel
Lingyun Yang wrote:
> Hi,
> 
> I am using matplotlib to visualize my data, but the data sometimes have
> several sets.
> Can I plot each set as usual to a EPS file, and combine these EPS file into
> a single ps file,
> each page of this ps file is only one EPS file I got before.
> 
> 
> Thanks.
> 
> Lingyun
> 
> 
> 
> ------------------------------------------------------------------------
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Matplotlib-users mailing list
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