Hi,
I got the following error when clearing and plotting on the same
figure for many times. I found the following minimum code to reproduce
this error. I am using matplotlib-0.91.1 and wxpython2.8 on windows
xp. In the matplotlibrc file, I changed the backend to WXAgg and
interactive to True.
import pylab
def test(n):
for i in range(n):
f=pylab.figure(1)
f.clf()
a=f.add_axes([0.2, 0.2, 0.6, 0.6])
a.plot([1,2,3,4,5], 'ro')
The error only happens for a large n. For example, test(10) works
fine, but test(50) will cause the error. Also runing test(10) for a
few times will also cause the error.
Could anyone give me some help?
Thanks.
The following is the error message:
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "<input>", line 3, in test
File "C:\Python25\Lib\site-packages\matplotlib\pyplot.py", line 191, in figure
File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wx.py",
line 1227, in draw_if_interactive
File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wxagg.py",
line 61, in draw
File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
line 380, in draw
File "C:\Python25\Lib\site-packages\matplotlib\figure.py", line 612, in draw
File "C:\Python25\Lib\site-packages\matplotlib\axes.py", line 1344, in draw
File "C:\Python25\Lib\site-packages\matplotlib\axis.py", line 596, in draw
File "C:\Python25\Lib\site-packages\matplotlib\axis.py", line 170, in draw
File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 775, in draw
File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 317, in draw
File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 195,
in _get_layout
File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
line 234, in get_text_width_height_descent
File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
line 301, in _get_agg_font
RuntimeError: Could not open facefile
C:\Python25\lib\site-packages\matplotlib\mpl-data\fonts\ttf\Vera.ttf;
Cannot_Open_Resource
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