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Stéfan van der Walt wrote:
> Hi all,
> 
> According to the `spy` docstring, it can display sparse matrices from
> scipy. The following code snippet seems to break, however:
Fixed in the trunk.
Eric
> 
> In [20]: import scipy.sparse as sp
> In [21]: d = sp.lil_eye((15, 15))
> In [22]: plt.spy(d)
> 
> Am I using the `spy` function correctly? I've also tried forcing
> marker mode by setting marker='s' and markersize=1, but I still get
> the same error message:
> 
> --> 160 gca()._sci(im)
> 161
> 162
> 
> /Users/stefan/lib/python2.6/site-packages/matplotlib/axes.pyc in _sci(self, im)
> 1336 elif im not in self.images and im not in self.collections:
> 1337 raise ValueError(
> -> 1338 "Argument must be an image, collection, or
> ContourSet in this Axes")
> 1339 self._current_image = im
> 1340
> 
> ValueError: Argument must be an image, collection, or ContourSet in this Axes
> 
> 
> 
> Kind regards and a happy festive season!
> Stéfan
> 
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Stéfan van der Walt wrote:
> Hi all,
> 
> According to the `spy` docstring, it can display sparse matrices from
> scipy. The following code snippet seems to break, however:
> 
> In [20]: import scipy.sparse as sp
> In [21]: d = sp.lil_eye((15, 15))
> In [22]: plt.spy(d)
> 
> Am I using the `spy` function correctly? I've also tried forcing
> marker mode by setting marker='s' and markersize=1, but I still get
> the same error message:
It's a bug. The problem is that spy can return in image or a line with 
markers, but the pyplot wrapper is assuming it is returning an image. It 
will need a custom wrapper instead of the standard wrapper for functions 
returning a mappable. I'll fix it.
Eric
> 
> --> 160 gca()._sci(im)
> 161
> 162
> 
> /Users/stefan/lib/python2.6/site-packages/matplotlib/axes.pyc in _sci(self, im)
> 1336 elif im not in self.images and im not in self.collections:
> 1337 raise ValueError(
> -> 1338 "Argument must be an image, collection, or
> ContourSet in this Axes")
> 1339 self._current_image = im
> 1340
> 
> ValueError: Argument must be an image, collection, or ContourSet in this Axes
> 
> 
> 
> Kind regards and a happy festive season!
> Stéfan
> 
> ------------------------------------------------------------------------------
> This SF.Net email is sponsored by the Verizon Developer Community
> Take advantage of Verizon's best-in-class app development support
> A streamlined, 14 day to market process makes app distribution fast and easy
> Join now and get one step closer to millions of Verizon customers
> http://p.sf.net/sfu/verizon-dev2dev 
> _______________________________________________
> Matplotlib-devel mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-devel

Hi all,
According to the `spy` docstring, it can display sparse matrices from
scipy. The following code snippet seems to break, however:
In [20]: import scipy.sparse as sp
In [21]: d = sp.lil_eye((15, 15))
In [22]: plt.spy(d)
Am I using the `spy` function correctly? I've also tried forcing
marker mode by setting marker='s' and markersize=1, but I still get
the same error message:
--> 160 gca()._sci(im)
 161
 162
/Users/stefan/lib/python2.6/site-packages/matplotlib/axes.pyc in _sci(self, im)
 1336 elif im not in self.images and im not in self.collections:
 1337 raise ValueError(
-> 1338 "Argument must be an image, collection, or
ContourSet in this Axes")
 1339 self._current_image = im
 1340
ValueError: Argument must be an image, collection, or ContourSet in this Axes
Kind regards and a happy festive season!
Stéfan