How to load .ttf file in matplotlib using mpl.rcParams?

Question

I have a matplotlib script that starts ...

import matplotlib as mpl
import matplotlib.pyplot as plt
import matplotlib.font_manager as fm

mpl.rcParams[\'xt         


        

Answer 1

Whew I made it in under 100 lines, @nim this also explains in more detail how dangerous it is, some modifications change completely the behaviour of the font property and font size.

prerequisites: Matplotlib and a font folder at the same level of the script containing the ttf font-file calibri.ttf

But this is what I have for you as an easter egg:

import os
import matplotlib
import matplotlib.pyplot as plt
import matplotlib.font_manager as fm
from matplotlib import ft2font
from matplotlib.font_manager import ttfFontProperty

__font_dir__ = os.path.join(os.path.dirname(__file__),"font")
fpath = os.path.join(__font_dir__,'calibri.ttf')

font = ft2font.FT2Font(fpath)
fprop = fm.FontProperties(fname=fpath)

ttfFontProp = ttfFontProperty(font)

fontsize=18

fontprop = fm.FontProperties(family='sans-serif',
                            #name=ap.fontprop.name,
                            fname=ttfFontProp.fname,
                            size=fontsize,
                            stretch=ttfFontProp.stretch,
                            style=ttfFontProp.style,
                            variant=ttfFontProp.variant,
                            weight=ttfFontProp.weight)

matplotlib.rcParams.update({'font.size': fontsize,
                        'font.family': 'sans-serif'})

fig, axis = plt.subplots()

axis.set_title('Text in a cool font',fontsize=fontsize,fontproperties=fontprop)

ax_right = axis.twinx()

axis.set_xlabel("some Unit",fontsize=fontsize,fontproperties=fontprop)

leftAxesName,rightAxesName = "left Unit", "right Unit"

axis.set_ylabel(leftAxesName,fontsize=fontsize,fontproperties=fontprop)
if rightAxesName:
    ax_right.set_ylabel(rightAxesName,fontsize=fontsize,fontproperties=fontprop)

for xLabel in axis.get_xticklabels():
    xLabel.set_fontproperties(fontprop)
    xLabel.set_fontsize(fontsize)

for yLabel in axis.get_yticklabels():
    yLabel.set_fontproperties(fontprop)
    yLabel.set_fontsize(fontsize)    

yTickLabelLeft = ax_right.get_yticklabels()

for yLabel in yTickLabelLeft:
    yLabel.set_fontproperties(fontprop)
    yLabel.set_fontsize(fontsize)

axis.plot([0,1],[0,1],label="test")

nrow,ncol=1,1
handels,labels= axis.get_legend_handles_labels()

propsLeft=axis.properties()

propsRight=ax_right.properties()

print(propsLeft['title'],propsLeft['xlabel'],propsLeft['ylabel'])
print(propsRight['ylabel'])

fig.set_tight_layout({'rect': [0, 0, 1, 0.95], 'pad': 0.05, 'h_pad': 1.5})
fig.tight_layout()
fig.set_alpha(True)

leg_fig = plt.figure()

leg = leg_fig.legend(handels, labels, #labels = tuple(bar_names)
   ncol=ncol, mode=None, 
   borderaxespad=0.,
   loc='center',        # the location of the legend handles
   handleheight=None,   # the height of the legend handles
   #fontsize=9,         # prop beats fontsize
   markerscale=None,
   frameon=False,
   prop=fontprop)

plt.show()