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Hi guys. Attempting to use the xkcd graphics feature that has been recently added to matplotlib from within sagemath.

import matplotlib.pyplot
matplotlib.pyplot.xkcd()
plot(sin(x),(x,-pi,pi),ticks=pi/4,tick_formatter=pi)

Matplotlib throws the following warning:

/home/joal/bin/sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3\ .1-py2.7-linux-x86_64.egg/matplotlib/font_manager.py:1236: UserWarning: findfont: Font family ['Humor Sans', 'Comic Sans MS'] not found. Falling back to Bitstream Vera Sans (prop.get_family(), self.defaultFamily[fontext]))

I have installed Humor Sans.ttf onto the main system, and into the directory:
/home/joal/bin/sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/

... but don't know how to reset the matplotlib font cache so matplotlib will pay attention to the new font.

Hi guys. Attempting to use the xkcd graphics feature that has been recently added to matplotlib from within sagemath.

import matplotlib.pyplot
matplotlib.pyplot.xkcd()
plot(sin(x),(x,-pi,pi),ticks=pi/4,tick_formatter=pi)

Matplotlib throws the following warning:

/home/joal/bin/sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3\ .1-py2.7-linux-x86_64.egg/matplotlib/font_manager.py:1236: UserWarning: findfont: Font family ['Humor Sans', 'Comic Sans MS'] not found. Falling back to Bitstream Vera Sans (prop.get_family(), self.defaultFamily[fontext]))

I have installed Humor Sans.ttf onto the main system, and into the directory:
/home/joal/bin/sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/

... but don't know how to reset the matplotlib font cache so matplotlib will pay attention to the new font.

Hi guys. Attempting to use the xkcd graphics feature that has been recently added to matplotlib from within sagemath.

import matplotlib.pyplot
matplotlib.pyplot.xkcd()
plot(sin(x),(x,-pi,pi),ticks=pi/4,tick_formatter=pi)

Matplotlib throws the following warning:

/home/joal/bin/sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3\ .1-py2.7-linux-x86_64.egg/matplotlib/font_manager.py:1236: UserWarning: findfont: Font family ['Humor Sans', 'Comic Sans MS'] not found. Falling back to Bitstream Vera Sans (prop.get_family(), self.defaultFamily[fontext]))

I have installed Humor Sans.ttf onto the main system, and into the directory:
/home/joal/bin/sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/

... but don't know how to reset the matplotlib font cache so matplotlib will pay attention to the new font.

[EDIT]

Okay, seem to have part of the solution - need to verify on a Linux machine this weekend.

The font is recognised if it is dumped into:
sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/
and renamed Humor-Sans.ttf

Then you need to create a .matplotlib folder in the user directory.
mkdir ~/.matplotlib

The concern is that it now that Humor Sans is used for text font, but not for the numbers on the horizontal and vertical axes. Any suggestions, sagers?

Hi guys. Attempting to use the xkcd graphics feature that has been recently added to matplotlib from within sagemath.

import matplotlib.pyplot
matplotlib.pyplot.xkcd()
plot(sin(x),(x,-pi,pi),ticks=pi/4,tick_formatter=pi)

Matplotlib throws the following warning:

/home/joal/bin/sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3\ .1-py2.7-linux-x86_64.egg/matplotlib/font_manager.py:1236: UserWarning: findfont: Font family ['Humor Sans', 'Comic Sans MS'] not found. Falling back to Bitstream Vera Sans (prop.get_family(), self.defaultFamily[fontext]))

I have installed Humor Sans.ttf onto the main system, and into the directory:
/home/joal/bin/sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/

... but don't know how to reset the matplotlib font cache so matplotlib will pay attention to the new font.

[EDIT]

Okay, seem to have part of the solution - need to verify on a Linux machine this weekend.

EDIT of EDIT
The tricks below don't work on LinuxMint.

The font is recognised in the virtualbox image if it is dumped into:
sage-6.2/local/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/
and renamed Humor-Sans.ttf

Then you need to create a .matplotlib folder in the user directory.
mkdir ~/.matplotlib

The concern is that it now that Humor Sans is used for text font, but not for the numbers on the horizontal and vertical axes. Any suggestions, sagers?

[EDIT]

Which turns out to be a consequence of using the pi tick_formatter.