Just trying to get familiar with mplot3d's functions, and I've run into a
problem with plot_wireframe that I'm having problems running down (or
duplicating, for that matter). I'm trying to generate plots of some wavelet
functions, so I need to plot values against time and scale. I've generated
three numpy arrays: X (time), Y (scale) (generated these using meshgrid), and Z
(values, a rather sparse matrix). I verified that all of these are the same
shape (7x100) by fetching the 'shape' attribute from X,Y,Z. However, when I
call plot_wireframe(), I get this error:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python26\lib\lib-tk\Tkinter.py", line 1410, in __call__
return self.func(*args)
File "C:\Python26\lib\site-packages\matplotlib\backends\backend_tkagg.py",
line 212, in resize
self.show()
File "C:\Python26\lib\site-packages\matplotlib\backends\backend_tkagg.py",
line 215, in draw
FigureCanvasAgg.draw(self)
File "C:\Python26\lib\site-packages\matplotlib\backends\backend_agg.py", line
314, in draw
self.figure.draw(self.renderer)
File "C:\Python26\Lib\site-packages\matplotlib\artist.py", line 46, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "C:\Python26\lib\site-packages\matplotlib\figure.py", line 773, in draw
for a in self.axes: a.draw(renderer)
File "C:\Python26\lib\site-packages\mpl_toolkits\mplot3d\axes3d.py", line
135, in draw
for col in self.collections]
File "C:\Python26\Lib\site-packages\mpl_toolkits\mplot3d\art3d.py", line 163,
in do_3d_projection
self._segments3d]
File "C:\Python26\lib\site-packages\mpl_toolkits\mplot3d\proj3d.py", line
211, in proj_trans_points
return proj_transform(xs, ys, zs, M)
File "C:\Python26\lib\site-packages\mpl_toolkits\mplot3d\proj3d.py", line
193, in proj_transform
vec = vec_pad_ones(xs, ys, zs)
File "C:\Python26\lib\site-packages\mpl_toolkits\mplot3d\proj3d.py", line
184, in vec_pad_ones
vec = np.array([xs,ys,zs,np.ones((len(xs)))])
ValueError: setting an array element with a sequence.
Any suggestions as to what the problem might be? As I said, I'm having
problems duplicating it in "toy" programs.
Thanks in advance.
/s/
Pat
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