Thanks. Unfortunately wx and tk backends are broken on my machine (but they may be easier to fix). I will file a bug report for the native backend bug.
Nicolas On Oct 4, 2010, at 22:27 , Friedrich Romstedt wrote: > 2010/10/4 Nicolas Rougier <nicolas.roug...@loria.fr>: >> 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) ? > > I don't know what it is, and it looks like some problem with the > Mac-native backend, but I believe you can sort it out by just > switching the backend to e.g. TkAgg. > > Friedrich ------------------------------------------------------------------------------ Virtualization is moving to the mainstream and overtaking non-virtualized environment for deploying applications. Does it make network security easier or more difficult to achieve? Read this whitepaper to separate the two and get a better understanding. http://p.sf.net/sfu/hp-phase2-d2d _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
