Re: [Matplotlib-users] TrueType font is missing table

[Neal B. <ndb...@gm...>]

Neal Becker wrote:

> Using mpl 1.4.3 on Fedora 22, I'm trying to use stix font (so I can render
> the unicode lambda label on the x-axis).  I have every fedora package
> related to 'stix', I think. It displays ok in qtagg4, but if I try to save
> to pdf if fails with
> 
> RuntimeError                              Traceback (most recent call
> last) <ipython-input-2-7dee58c07264> in <module>()
> ----> 1 exec(open(r'/usr/tmp/python-8710q1Y.py').read()) # PYTHON-MODE
> 
> <string> in <module>()
> 
> /usr/lib64/python3.4/site-packages/matplotlib/pyplot.py in savefig(*args,
> **kwargs)
>     575 def savefig(*args, **kwargs):
>     576     fig = gcf()
> --> 577     res = fig.savefig(*args, **kwargs)
>     578     draw()   # need this if 'transparent=True' to reset colors
>     579     return res
> 
> /usr/lib64/python3.4/site-packages/matplotlib/figure.py in savefig(self,
> *args, **kwargs)
>    1474             self.set_frameon(frameon)
>    1475
> -> 1476         self.canvas.print_figure(*args, **kwargs)
>    1477
>    1478         if frameon:
> 
> /usr/lib64/python3.4/site-packages/matplotlib/backend_bases.py in
> print_figure(self, filename, dpi, facecolor, edgecolor, orientation,
> format, **kwargs)
>    2209                 orientation=orientation,
>    2210                 bbox_inches_restore=_bbox_inches_restore,
> -> 2211                 **kwargs)
>    2212         finally:
>    2213             if bbox_inches and restore_bbox:
> 
> /usr/lib64/python3.4/site-packages/matplotlib/backends/backend_pdf.py in
> print_pdf(self, filename, **kwargs)
>    2489                 file.endStream()
>    2490             else:            # we opened the file above; now
>    finish
> it off
> -> 2491                 file.close()
>    2492
>    2493
> 
> /usr/lib64/python3.4/site-packages/matplotlib/backends/backend_pdf.py in
> close(self)
>     523         self.endStream()
>     524         # Write out the various deferred objects
> --> 525         self.writeFonts()
>     526         self.writeObject(self.alphaStateObject,
>     527                          dict([(val[0], val[1])
> 
> /usr/lib64/python3.4/site-packages/matplotlib/backends/backend_pdf.py in
> writeFonts(self)
>     626                 chars = self.used_characters.get(stat_key)
>     627                 if chars is not None and len(chars[1]):
> --> 628                     fonts[Fx] = self.embedTTF(realpath, chars[1])
>     629         self.writeObject(self.fontObject, fonts)
>     630
> 
> /usr/lib64/python3.4/site-packages/matplotlib/backends/backend_pdf.py in
> embedTTF(self, filename, characters)
>    1101
>    1102         if fonttype == 3:
> -> 1103             return embedTTFType3(font, characters, descriptor)
>    1104         elif fonttype == 42:
>    1105             return embedTTFType42(font, characters, descriptor)
> 
> /usr/lib64/python3.4/site-packages/matplotlib/backends/backend_pdf.py in
> embedTTFType3(font, characters, descriptor)
>     887             # actual outlines)
>     888             rawcharprocs = ttconv.get_pdf_charprocs(
> --> 889                 filename.encode(sys.getfilesystemencoding()),
> glyph_ids)
>     890             charprocs = {}
>     891             for charname, stream in six.iteritems(rawcharprocs):
> 
> RuntimeError: TrueType font is missing table
> 

forgot to attach the code.


#!/usr/bin/python
# -*- coding: utf-8 -*-
data='''carriers,lambda,per
1,7,1.3e-4
1,8,3.0e-4
1,9,.0014
8,7,4.8e-4
8,8,1.3e-3
8,9,.0075
'''

import pandas as pd
try:
    from StringIO import StringIO
except ImportError:
    from io import StringIO
df = pd.read_csv (StringIO (data))
g = df.groupby ('carriers')
import matplotlib.pyplot as plt

import matplotlib as mpl
#mpl.rcParams['font.family'] = 'stix'
mpl.rc('font', family='DejaVu Sans')
#mpl.rc('font', family='stix')

import itertools
markers = itertools.cycle(['o','s','v']) 

fig = plt.figure() 
ax = fig.add_subplot(111)
for c, stuff in g:
    plt.semilogy (stuff['lambda'].values, stuff['per'].values, 
label='carriers=%s'%c, marker=next(markers))

plt.legend (loc='best')
ax.set_xlabel (' ')
ax.set_ylabel ('per')
plt.grid(which='major', linestyle='solid')
plt.grid(which='minor', linestyle='dashed') 
plt.savefig ('per_vs_lambda.pdf')