ipython Notebook中的自定义matplotlib字体

Question

I use matplotlib in iPython notebooks and I'm hoping to change the font-family to Gotham-Book. I have Gotham-Book installed on my machine but unfortunately, matplotlib cannot seem to find the font and keeps defaulting to a serif font. Any thoughts on how to get gotham-book working?

Here is the code I'm using.

import matplotlib.pylab as plt

plt.rcParams['font.family']=['gothambook','gotham','gotham-book','serif']

mpl.pylab.plot(range(10), mpl.pylab.sin(range(10)))
mpl.pylab.xlabel("GOTHAM BOOK FONT", size=20)

I can see the font is on my machine here:

In [12]:
matplotlib.font_manager.findSystemFonts(fontpaths=None, fontext='ttf')

Out[12]:
['/usr/share/fonts/dejavu/DejaVuLGCSansMono-Oblique.ttf',
 '/usr/share/fonts/dejavu/DejaVuLGCSansMono.ttf',
 '/usr/share/fonts/dejavu/DejaVuSansMono-BoldOblique.ttf',
 '/usr/share/fonts/dejavu/DejaVuSans-ExtraLight.ttf',
 '/usr/share/fonts/dejavu/DejaVuLGCSansMono-BoldOblique.ttf',
 '/usr/share/fonts/dejavu/DejaVuSansCondensed-Oblique.ttf',
 '/usr/share/fonts/dejavu/DejaVuSans.ttf',
 '/usr/local/share/fonts/gothambook/Gotham-Book.ttf',
 '/usr/share/fonts/dejavu/DejaVuSansCondensed.ttf',
 '/usr/share/fonts/dejavu/DejaVuSansMono-Oblique.ttf',
 '/usr/share/fonts/dejavu/DejaVuLGCSansMono-Bold.ttf',
 '/usr/share/fonts/dejavu/DejaVuSans-BoldOblique.ttf',
 '/usr/share/fonts/dejavu/DejaVuSans-Bold.ttf',
 '/usr/share/fonts/dejavu/DejaVuSansCondensed-BoldOblique.ttf',
 '/usr/share/fonts/dejavu/DejaVuSansMono-Bold.ttf',
 '/usr/share/fonts/dejavu/DejaVuSansCondensed-Bold.ttf',
 '/usr/share/fonts/dejavu/DejaVuSans-Oblique.ttf',
 '/usr/share/fonts/dejavu/DejaVuSansMono.ttf']

Answer 1

I believe because even you ADDED the font.family to the rcParams but you haven't USED it on the xlabel :

mpl.pylab.xlabel("GOTHAM BOOK FONT", size=20)

Change it to this, should work:

mpl.pylab.xlabel("GOTHAM BOOK FONT", family='gothambook', size=20)

You can use fontdict to change the font settings on the xlabel , something like this works on mine:

import matplotlib
import matplotlib.pyplot as plt

plt.rcParams['font.family']
Out[1]: [u'sans-serif']

plt.rcParams['font.family'].append(u'Comic Sans MS')

font = {
    'family' : 'Comic Sans MS',
    'color'  : 'blue',
    'weight' : 'normal',
    'size'   : 18,
}

plt.plot(range(10), matplotlib.pylab.sin(range(10)))
plt.xlabel('Comic Sans MS FONT', fontdict=font)

Results:

Alternatively you can set parameters on the fly with this:

plt.xlabel('Comic Sans MS FONT', family='Comic Sans MS', fontsize=18, color='blue')

which will have same results, you can read more about the parameters on Text Properties

Hope this helps.