I'm trying to have animated plots using draw_artist on mac os x and I got an
error with the following script:
import numpy as np
import matplotlib.pyplot as plt
plt.ion()
plt.figure()
subplot = plt.subplot(1,1,1)
axis = plt.imshow(np.random.random((10,10)))
plt.draw()
subplot.draw_artist(axis)
plt.show()
The traceback is:
Traceback (most recent call last):
File "matplotlib-bug.py", line 8, in <module>
subplot.draw_artist(axis)
File "/Volumes/Data/Local/lib/python2.7/site-packages/matplotlib/axes.py",
line 1946, in draw_artist
a.draw(self._cachedRenderer)
File "/Volumes/Data/Local/lib/python2.7/site-packages/matplotlib/artist.py",
line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/Volumes/Data/Local/lib/python2.7/site-packages/matplotlib/image.py",
line 338, in draw
gc = renderer.new_gc()
File
"/Volumes/Data/Local/lib/python2.7/site-packages/matplotlib/backends/backend_macosx.py",
line 105, in new_gc
self.gc.save()
RuntimeError: CGContextRef is NULL
Is there something wrong in my script (it seems to be working on linux) ?
Information:
matplotlib version: 1.0.0
python version 2.7
macosx version: 10.6.4
Nicolas
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