As far as I can say, moving around artists from one axes to the other
is NOT recommended. And I encourage you to create separate artists for
each axes rather than try to reuse the existing ones.
For your particular example,
fig = mpl.figure()
ax2 = fig.add_subplot(1,1,1)
for c in ax1.collections:
c._transOffset=ax2.transData
ax2.add_collection(c)
should work.
Regards,
-JJ
On Mon, Mar 29, 2010 at 12:24 PM, Thomas Robitaille
<thomas.robitai...@gmail.com> wrote:
> Hello,
>
> In the following example, I am trying to copy over existing collections from
> one plot to another:
>
> import matplotlib.pyplot as mpl
>
> fig = mpl.figure()
> ax1 = fig.add_subplot(1,1,1)
> ax1.scatter([0.5],[0.5])
> fig.savefig('test1.png')
>
> fig = mpl.figure()
> ax2 = fig.add_subplot(1,1,1)
> for c in ax1.collections:
> ax2.add_collection(c)
> fig.savefig('test2.png')
>
> However, the circle appears in the wrong place in test2.png (close to 0.4,
> 0.4 instead of 0.5,0.5). Is it not possible/safe to copy over collections in
> this way? If not, then how should this be done?
>
> Thanks,
>
> Thomas
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