matplotlib-users Mailing List for matplotlib

>>>>> "Jonas" == Jonas August <jo...@cs...> writes:

Hi Jonas,

Thanks for the email.  In the future would you mind posting questions
to the mailing list
http://lists.sourceforge.net/mailman/listinfo/matplotlib-users so
others can benefit from / contribute to the discussion?

    Jonas> Hi There, I was just trying out your matplotlib .31 on
    Jonas> gentoo-1.4 (gnu/linux) with pygtk 1.99.16 and python 2.2.3.
    Jonas> First, thanks for putting this impressive package together;
    Jonas> plotting is a barrier to entry for python, and the adoption
    Jonas> of the matlab syntax is clean.

    Jonas> Onto my issue: I noticed that the x label in a plot I
    Jonas> created from your tutorial gets clipped below both in the
    Jonas> window and in the png file created by the save button.

Hmm.  From you screenshot you sent, I assume you are using this
example

    from matplotlib.matlab import *
    font = {'fontname'   : 'Courier',
            'color'      : 'r',
            'fontweight' : 'bold',
            'fontsize'   : 11}

    plot([1,2,3])
    title('A title', font, fontsize=12)
    text(0.5, 2.5, 'a line', font, color='k')
    xlabel('time (s)', font)
    ylabel('voltage (mV)', font)
    show()


When I plot this example with matplotlib 0.31, I do not get the
clipping you showed in the screenshots you sent.  However, from your
screenshot, it looks like you have increased the default fontsize to
larger than 11.  Are you using a larger size?  If I make the fontsize
much larger, say 20, I can reproduce the xlabel clipping you showed.

I don't know if this is a bug or a feature :-).  Since you can make
the text arbitrarily large, at some point it will extend beyond the
boundaries of a figure of a given size.  How do you think it should
behave?  Resize the axes/figure?  Warn the user?  I'll have to think
about it.

That said, there is a parameter you can tweak to fix this problem if
you want larger fonts.  In matplotlib/backends/backend_gtk.py on line
761, you can increase the screenDPI parameter, say to 150, which will
enable larger fonts relative to your plots.  I am still not decided on
how the defaultDPI should be set in a device independent way, since
the actual DPI is display dependent.  I'm considering setting up a
config file so users can customize things like their default fonts,
DPIs, figsizes, backend, etc....

John Hunter

>>>>> "Charles" == Charles  <ct...@cs...> writes:

    Charles> Hi folks, I used to be able to suppress axis labels with
    Charles> ax.set_yticklabels([])

This was a bug that crept into the release with changes in ticklabel
handling with log plots.  I just fixed it and committed it to CVS.

Sorry for the trouble,
JDH

>>>>> "LUK" == LUK ShunTim <shu...@po...> writes:

    LUK> You deserve much thanks for developing such a nice package.

Thanks!

    LUK> An afterthought: perhaps an EPS backend instead of/additional
    LUK> to a PS backend would be more convenient for inclusion into
    LUK> publications. I know very little about postscript programming
    LUK> so I don't know what's the effort involved, though.

Not much at all.  As far as I know, the only difference between eps
and ps is a bounding box at the top of the document which gives the
figure dimensions.  It shouldn't be hard to check for an extension in
the savefig command and add the bounding box if eps is requested.  

I use postscript (*.ps) directly in my LaTeX documents without
trouble, however.  Are you using LaTeX?

JDH

John Hunter wrote:
>>>>>>"LUK" == LUK ShunTim <shu...@po...> writes:
> 
> 
>   H:\00work\00cvs\matplotlib\matplotlib\examples>python subplot_demo.py -dPS
>   ['E:\\Py23\\share\\matplotlib', 'E', '\\Py23e\\share\\matplotlib']
> 
> Oh, I see the bug. The reason the lines are there that you commented
> out is to allow you to specify multiple font dirs in your path, as in 
> 

Yes, the previous version caught the ":" in the drive letter specification.

>   set AFMPATH = c:\somepath\fonts;e:\some\other\path\fonts
> 
> But I wasn't properly doing a platform independent path split.
> 
> The code should read
> 
>     def _get_afm_filenames(self):
>         paths = [os.path.join(distutils.sysconfig.PREFIX, 'share', 'matplotlib')]
>         if os.environ.has_key('AFMPATH'):
>             afmpath = os.environ['AFMPATH']
>             paths.extend(afmpath.split(os.pathsep))
> 
>         fnames = [fname for fname in get_recursive_filelist(paths) 
>                   if fname.lower().find('.afm')>0 and
>                   os.path.exists(fname)]
> 
>         return fnames
> 

Yes, it works. I had thought of testing for "if OS == win" sort of stuff 
instead of testing for the presence of ";" or ":". But it appears that 
Python has the foresight to provide os.pathsep. I learnt a bit more and 
love Python a bit more. :-)

> 
> Thanks for helping me diagnose it.  Please let me know if the above
> works on your system!
> 
> John Hunter
> 

You deserve much thanks for developing such a nice package.

An afterthought: perhaps an EPS backend instead of/additional to a PS 
backend would be more convenient for inclusion into publications. I 
know very little about postscript programming so I don't know what's the 
effort involved, though.

Best regards,
ST
--

Hi folks,

I used to be able to suppress axis labels with
	ax.set_yticklabels([])

However, now when I do that it puts in defaults on my bar graphs. Very
messy when I've stacked 8 of them on a figure.  Anyone know the new way to
suppress this, or where I should be looking in the code?

-C
-- 
Charles R. Twardy                    www.csse.monash.edu.au/~ctwardy
Monash University                    sarbayes.org
Computer Sci. & Software Eng.
+61(3) 9905 5823 (w)  5146 (fax)