Hi,
I have a problem with pyplot. When I'm passing an numpy array with complex entries to imshow I receive the error message: TypeError: array cannot be safely cast to required type Which is ok, when I thereafter call imshow with a valid image (i)python segfaults. Sometimes it even segfaults instead of the above error message: Python 2.5.2 (r252:60911, Oct 5 2008, 19:29:17) [GCC 4.3.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from matplotlib.pyplot import * /usr/lib/python2.5/site-packages/pytz/__init__.py:29: UserWarning: Module dateutil was already imported from /var/lib/python-support/python2.5/dateutil/__init__.py, but /var/lib/python-support/python2.5 is being added to sys.path from pkg_resources import resource_stream >>> from numpy import * >>> X = random.uniform(size=(10,10)) >>> Xc = X*1j >>> imshow(X) <matplotlib.image.AxesImage object at 0x295e2d0> >>> imshow(X) <matplotlib.image.AxesImage object at 0x253efd0> >>> imshow(X) <matplotlib.image.AxesImage object at 0x2970f90> >>> imshow(X) <matplotlib.image.AxesImage object at 0x296d790> >>> imshow(X) <matplotlib.image.AxesImage object at 0x2973ed0> >>> imshow(X) <matplotlib.image.AxesImage object at 0x29752d0> >>> imshow(X) <matplotlib.image.AxesImage object at 0x2975610> >>> imshow(X) <matplotlib.image.AxesImage object at 0x29758d0> >>> imshow(X) <matplotlib.image.AxesImage object at 0x2975b90> >>> imshow(X) <matplotlib.image.AxesImage object at 0x2975e50> >>> imshow(X) <matplotlib.image.AxesImage object at 0x2975a50> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297b390> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297b6d0> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297b990> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297bc50> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297bf10> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297bb10> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297f4d0> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297f790> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297fa50> >>> imshow(X) <matplotlib.image.AxesImage object at 0x297fd10> >>> imshow(Xc) Segmentation fault The only deterministic behaviour after calling imshow with a complex array is that it segfaults anytime. Quite annoying because I forget to convert to real quite often 8-). I use matplotlib, python, and numpy with the latest backport version available in Ubuntu Intrepid 8.10 amd64 (numpy 1.1.1, python 2.5.2, matplotlib 0.98.3). Does also crash in ipython 0.9.1 with and without -pylab flag started. I filed a bug but so far no one responded, so maybe here's some help. http://sourceforge.net/tracker2/?func=detail&aid=2502029&group_id=80706&atid=560720 Cheers Phil -- View this message in context: http://www.nabble.com/Segmentation-fault-when-calling-imshow-with-complex-array-tp21473274p21473274.html Sent from the matplotlib - users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
