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Hi:
I am trying to use this code http://tinyurl.com/44zcpfk (Scipy
cookbook) to make an animation where the background is fix and only a
line is updated. However, after executing the code, I only get a
window with an empty plot. Some debugging shows that the update_line
function is not being called.
I changed the use of numerix by numpy with respect to the original
code. Other than that is the same.
Any advice on how to fix the problem? Or may be this way is obsolete,
but all the animation examples I've found so far don't consider a
fixed background.
Alejandro.

Sorry for another email,
Please all ignore my previous emails, I have figured it out and it was a
stupid error on my part plotting time rather than time[0] etc.
Apologies and best wishes,
Libby
On 4 April 2011 17:50, Elizabeth Harper-Clark <h-...@ci...>wrote:
> Hello,
>
> I've been playing with the script and I now know a little bit more about
> what is wrong. I can get the full graph space to plot by changing:
>
> ax_mass = SubplotHost(fig, 1,1,1, aspect=1.)
> to
> ax_mass = SubplotHost(fig, 1,1,1)
>
> but then a line is never drawn. I have removed the x and y axis limits and
> it plots the axes for the limits of the date but no line for the graph? Here
> is the relevant part of the code:
>
> fig = plt.figure()
> ax_mass = SubplotHost(fig, 1,1,1)
>
> frac_to_mass = gasmass
> print 'frac_to_mass', frac_to_mass
> aux_trans = mtransforms.Affine2D().scale(1., frac_to_mass)
> ax_frac = ax_mass.twin(aux_trans)
> ax_frac.set_viewlim_mode("transform")
>
> fig.add_subplot(ax_mass)
> ax_mass.plot(time,massesMsun, linestyle='-', color='k', linewidth=2.0)
>
> ax_mass.axis["bottom"].set_label("Time (Myrs)" )
> ax_frac.axis["right"].set_label("Fraction of Original Gas Mass in Stars" )
> ax_mass.axis["left"].set_label("Mass in Stars (Msun)" )
> ax_frac.axis["right"].major_ticklabels.set_visible(True)
> ax_frac.axis["top"].major_ticklabels.set_visible(False)
> plt.savefig(frame_template %(folder,name[0],name[int(sys.argv[1])-1]),
> format="eps")
>
>
> can I not use ax_mass.plot?
>
> Thanks,
>
> Libby
>
>
>
>
>
>
> On 4 April 2011 17:00, Elizabeth Harper-Clark <h-...@ci...>wrote:
>
>> Hi guys,
>>
>> I am trying to use the Axes grid toolkit to plot a graph with a second y
>> axes that gives the first y axes in different units (similar to
>> http://matplotlib.sourceforge.net/examples/axes_grid/parasite_simple2.html?highlight=subplothost).
>> I am clearly getting something wrong or missing something as I get both y
>> axes but no graph inbetween. Plot and script attached. Please can anyone see
>> what I have got wrong or point me in the direction of more extensive
>> documentation about parasite axes or SubplotHost?
>>
>> Many thanks,
>>
>> Libby
>>
>>
>> --
>> Elizabeth Harper-Clark MA MSci
>> PhD Candidate, Astrophysics, UofT
>>
>>
>> www.astro.utoronto.ca/~h-clark <http://www.astro.utoronto.ca/%7Eh-clark>
>> h-...@ci...
>> AIM: edphc1
>> MSN: ed...@ho...
>> Skype: eharperclark
>> Office phone: 416-978-5759
>>
>
>
>
> --
> Elizabeth Harper-Clark MA MSci
> PhD Candidate, Astrophysics, UofT
>
> www.astro.utoronto.ca/~h-clark <http://www.astro.utoronto.ca/%7Eh-clark>
> h-...@ci...
> AIM: edphc1
> MSN: ed...@ho...
> Skype: eharperclark
> Office phone: 416-978-5759
>
-- 
Elizabeth Harper-Clark MA MSci
PhD Candidate, Astrophysics, UofT
www.astro.utoronto.ca/~h-clark <http://www.astro.utoronto.ca/%7Eh-clark>
h-...@ci...
AIM: edphc1
MSN: ed...@ho...
Skype: eharperclark
Office phone: 416-978-5759

Hello,
I've been playing with the script and I now know a little bit more about
what is wrong. I can get the full graph space to plot by changing:
ax_mass = SubplotHost(fig, 1,1,1, aspect=1.)
to
ax_mass = SubplotHost(fig, 1,1,1)
but then a line is never drawn. I have removed the x and y axis limits and
it plots the axes for the limits of the date but no line for the graph? Here
is the relevant part of the code:
fig = plt.figure()
ax_mass = SubplotHost(fig, 1,1,1)
frac_to_mass = gasmass
print 'frac_to_mass', frac_to_mass
aux_trans = mtransforms.Affine2D().scale(1., frac_to_mass)
ax_frac = ax_mass.twin(aux_trans)
ax_frac.set_viewlim_mode("transform")
fig.add_subplot(ax_mass)
ax_mass.plot(time,massesMsun, linestyle='-', color='k', linewidth=2.0)
ax_mass.axis["bottom"].set_label("Time (Myrs)" )
ax_frac.axis["right"].set_label("Fraction of Original Gas Mass in Stars" )
ax_mass.axis["left"].set_label("Mass in Stars (Msun)" )
ax_frac.axis["right"].major_ticklabels.set_visible(True)
ax_frac.axis["top"].major_ticklabels.set_visible(False)
plt.savefig(frame_template %(folder,name[0],name[int(sys.argv[1])-1]),
format="eps")
can I not use ax_mass.plot?
Thanks,
Libby
On 4 April 2011 17:00, Elizabeth Harper-Clark <h-...@ci...>wrote:
> Hi guys,
>
> I am trying to use the Axes grid toolkit to plot a graph with a second y
> axes that gives the first y axes in different units (similar to
> http://matplotlib.sourceforge.net/examples/axes_grid/parasite_simple2.html?highlight=subplothost).
> I am clearly getting something wrong or missing something as I get both y
> axes but no graph inbetween. Plot and script attached. Please can anyone see
> what I have got wrong or point me in the direction of more extensive
> documentation about parasite axes or SubplotHost?
>
> Many thanks,
>
> Libby
>
>
> --
> Elizabeth Harper-Clark MA MSci
> PhD Candidate, Astrophysics, UofT
>
>
> www.astro.utoronto.ca/~h-clark <http://www.astro.utoronto.ca/%7Eh-clark>
> h-...@ci...
> AIM: edphc1
> MSN: ed...@ho...
> Skype: eharperclark
> Office phone: 416-978-5759
>
-- 
Elizabeth Harper-Clark MA MSci
PhD Candidate, Astrophysics, UofT
www.astro.utoronto.ca/~h-clark <http://www.astro.utoronto.ca/%7Eh-clark>
h-...@ci...
AIM: edphc1
MSN: ed...@ho...
Skype: eharperclark
Office phone: 416-978-5759

Hi,
Fixed it by deleting fontList.cache in my tmp directory that was being used
by the web server.
Maybe this helps someone else.
On Mon, Apr 4, 2011 at 3:29 PM, Michael Droettboom <md...@st...> wrote:
> When run as the web server, it's probably running as a different user. Is
> Arial installed in ~/.fonts? If so the webserver user won't find it.
>
>
> On 04/04/2011 03:17 PM, Robbie Edwards wrote:
>
> Hi all,
>
> I'm trying to use matplotlib to generate some graphs on a webpage for me.
> Everything works pretty well, except, I cannot make a change to the fonts.
> I've set up the scripts to be called as a cgi script or to be run from the
> command line. When I run them from the command line, I get the correct font
> (Arial) yet when run from the web page, it uses the CMR10 font. Arial is
> installed on the linux system.
>
> I've thought the problem might be related to which matplotlibrc file each
> script might be using, but when I check matplotlib.matplotlib_fname() from
> the command line and web page, they return the same.
>
> Maybe there is a way to get the --verbose-debug output when run from a
> web page? That could help me figure out what's going on.
>
> You can set "verbose.level" to "debug-annoying" in your matplotlibrc. If
> the webserver is collecting standard output, the debug messages should end
> up in the web server logs.
>
>
> I know I could manually specify the font using font_manager, but that's
> not really ideal as I'd have to do it manually for each graph. I'd rather
> have a global solution for all my graphs. Any help is greatly appreciated.
>
> Cheers,
> Mike
>
>
>
> robbie
>
>
>
> ------------------------------------------------------------------------------
> Create and publish websites with WebMatrix
> Use the most popular FREE web apps or write code yourself;
> WebMatrix provides all the features you need to develop and
> publish your website. http://p.sf.net/sfu/ms-webmatrix-sf
>
>
> _______________________________________________
> Matplotlib-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
>
> --
> Michael Droettboom
> Science Software Branch
> Space Telescope Science Institute
> Baltimore, Maryland, USA
>
>
>
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> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>

When run as the web server, it's probably running as a different user. 
Is Arial installed in ~/.fonts? If so the webserver user won't find it.
On 04/04/2011 03:17 PM, Robbie Edwards wrote:
> Hi all,
>
> I'm trying to use matplotlib to generate some graphs on a webpage for 
> me. Everything works pretty well, except, I cannot make a change to 
> the fonts. I've set up the scripts to be called as a cgi script or to 
> be run from the command line. When I run them from the command line, 
> I get the correct font (Arial) yet when run from the web page, it uses 
> the CMR10 font. Arial is installed on the linux system.
>
> I've thought the problem might be related to which matplotlibrc file 
> each script might be using, but when I 
> check matplotlib.matplotlib_fname() from the command line and web 
> page, they return the same.
>
> Maybe there is a way to get the --verbose-debug output when run from a 
> web page? That could help me figure out what's going on.
You can set "verbose.level" to "debug-annoying" in your matplotlibrc. 
If the webserver is collecting standard output, the debug messages 
should end up in the web server logs.
>
> I know I could manually specify the font using font_manager, but 
> that's not really ideal as I'd have to do it manually for each graph. 
> I'd rather have a global solution for all my graphs. Any help is 
> greatly appreciated.
Cheers,
Mike
>
>
> robbie
>
>
>
> ------------------------------------------------------------------------------
> Create and publish websites with WebMatrix
> Use the most popular FREE web apps or write code yourself;
> WebMatrix provides all the features you need to develop and
> publish your website. http://p.sf.net/sfu/ms-webmatrix-sf
> 
>
>
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> 
-- 
Michael Droettboom
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA

Hi all,
I'm trying to use matplotlib to generate some graphs on a webpage for me.
 Everything works pretty well, except, I cannot make a change to the fonts.
 I've set up the scripts to be called as a cgi script or to be run from the
command line. When I run them from the command line, I get the correct font
(Arial) yet when run from the web page, it uses the CMR10 font. Arial is
installed on the linux system.
I've thought the problem might be related to which matplotlibrc file each
script might be using, but when I check matplotlib.matplotlib_fname() from
the command line and web page, they return the same.
Maybe there is a way to get the --verbose-debug output when run from a web
page? That could help me figure out what's going on.
I know I could manually specify the font using font_manager, but that's not
really ideal as I'd have to do it manually for each graph. I'd rather have
a global solution for all my graphs. Any help is greatly appreciated.
robbie

I don't see a good reason why this was not done. (Maybe someone else 
has the historical context, if any).
Would you mind adding an issue to the tracker for this?
Mike
On 04/02/2011 06:25 AM, Thomas Robitaille wrote:
> Hi,
>
> I would like to set the zorder on a collection e.g. PatchCollection. By looking at the matplotlib source code in collections.py, I figured that it would be possible to set the zorder attribute of a collection manually, e.g.
>
> p = PatchCollection(...)
> p.zorder = ...
>
> but I was wondering whether it would make sense to allow zorder to be passed as a keyword argument when initializing a collection, or when running ax.add_collection, or is there a reason that this was not done?
>
> Cheers,
> Tom
> ------------------------------------------------------------------------------
> Create and publish websites with WebMatrix
> Use the most popular FREE web apps or write code yourself;
> WebMatrix provides all the features you need to develop and
> publish your website. http://p.sf.net/sfu/ms-webmatrix-sf
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> 
-- 
Michael Droettboom
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA