On Thu, Nov 12, 2009 at 6:32 PM, Geoffrey Ely <g...@usc.edu> wrote:
> Thanks for the help. With that I get:
>
> AttributeError: 'function' object has no attribute '__buffer__'
>
>
shape = fig.canvas.get_width_height()[::-1] + (4,)
im = np.frombuffer(fig.canvas.buffer_rgba(0,0),
dtype=np.uint8).reshape(shape)
Using buffer_rgba is more efficient than using tostring_rgb as no
memory is allocated. But, I believe that "im" is a read-only "view" of
the canvas. So, you must make a copy if you want to show it with
imshow as in your original code.
If you're using PIL,
import PIL.Image
im2=PIL.Image.frombuffer("RGBA", fig.canvas.get_width_height(),
fig.canvas.buffer_rgba(0,0), "raw", "RGBA", 0, 1)
Regards,
-JJ
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