Re: [Matplotlib-users] Type 1 fonts with log graphs

[Brandon H. <bra...@st...>]

Hi Phil,

Next time I'll be more explicit.  I added the question to SA after I tried
to get a public link to my message and saw that archives past July of this
year seem to be missing.  It wasn't clear that this list was even still
alive:
http://sourceforge.net/mailarchive/forum.php?forum_name=matplotlib-users

Any idea why the archives seem to have stopped?

Thanks,
Brandon

On Tue, Oct 30, 2012 at 2:23 AM, Phil Elson <pel...@gm...> wrote:

> Hi Brandon,
>
> I notice that this is cross-posted on StackOverflow (
> http://stackoverflow.com/questions/13132194/type-1-fonts-with-log-graphs).
> Personally, I have no problem with cross posting, but to save two people
> having to answer the same question, I would make sure it was explicit that
> this had also been posted elsewhere.
>
> Thanks,
>
> Phil
>
>
> On 30 October 2012 03:13, Brandon Heller <bra...@st...> wrote:
>
>> Hi,
>>
>> I'm trying to use Matplotlib graphs as part of a camera-ready
>> submission, and the publishing house requires the use of Type 1 fonts
>> only.
>>
>> I'm finding that the PDF backend happily outputs Type-1 fonts for
>> simple graphs with linear Y axes, but outputs Type-3 fonts for
>> logarithmic Y axes.
>>
>> Using a logarithmic yscale incurs the use of mathtext, which seems to
>> use Type 3 fonts, presumably because of the default use of exponential
>> notation.  I can use an ugly hack to get around this - using
>> pyplot.yticks() to force the axis ticks to not use exponents - but
>> this would require moving the plot region to accommodate large labels
>> (like 10 ^ 6) or writing the axes as 10, 100, 1K, etc. so they fit.
>>
>> There's a minimum working example below, which I've tested with the
>> matplotlib master branch as of today, as well as 1.1.1, which produces
>> the same behavior, so I don't know that this is a bug, probably just
>> unexpected behavior.
>>
>>
>> #!/usr/bin/env python
>> # Simple program to test for type 1 fonts.
>> # Generate a line graph w/linear and log Y axes.
>>
>> from matplotlib import rc, rcParams
>>
>> #rc('font',**{'family':'sans-serif','sans-serif':['Helvetica']})
>>
>> # These lines are needed to get type-1 results:
>> #
>> http://nerdjusttyped.blogspot.com/2010/07/type-1-fonts-and-matplotlib-figures.html
>> rcParams['ps.useafm'] = True
>> rcParams['pdf.use14corefonts'] = True
>> rcParams['text.usetex'] = False
>>
>> import matplotlib.pyplot as plt
>>
>> YSCALES = ['linear', 'log']
>>
>> def plot(filename, yscale):
>>     plt.figure(1)
>>     xvals = range(1, 2)
>>     yvals = xvals
>>     plt.plot(xvals, yvals)
>>     plt.yscale(yscale)
>>     #YTICKS = [1, 10]
>>     #plt.yticks(YTICKS, YTICKS)  # locs, labels
>>     ax = plt.gca()
>>     #print ax.get_xticklabels()[0].get_text()
>>     print ",".join([a.get_label() for a in ax.get_yticklabels()])
>>     plt.savefig(filename + '.pdf')
>>
>>
>> if __name__ == '__main__':
>>     for yscale in YSCALES:
>>         plot('linegraph-' + yscale, yscale)
>>
>>
>>
>> Does anyone know a clean way to get Type 1 fonts with log axes?
>>
>> Thanks,
>> Brandon
>>
>>
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