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
