move a line from one subplot to another

Hi everybody,

I try to move an instance of matplotlib.lines.Line2D from one subplot to
another. How to do that? I have tried the following code, but the Line2D
does not appear on the second subplot.

Thanks in advance,

Julien

···

###############
from pylab import *

ion()
f = figure()
s = f.add_subplot("211")
line = matplotlib.lines.Line2D([0,1],[0,1],color='m')
s.add_line( line )
s2 = f.add_subplot("212")

draw()

raw_input( 'press a key to remove the line and try to add it to second
subplot' )

line.remove()
s2.add_line( line )
draw()

raw_input('press a key to quit')
#####################

--
python -c "print ''.join([chr(154 - ord(c)) for c in '*9(9&(18%.\
9&1+,\'Z4(55l4('])"

"When a distinguished but elderly scientist states that something is
possible, he is almost certainly right. When he states that something is
impossible, he is very probably wrong." (first law of AC Clarke)

moving around artists form one axes to the other can be very tricky
due to the underlying design of mpl. So, it is generally better idea
to create artists for each axes, instead of reusing them.

For a simple case as yours, adding the following line after
line.remove() will work.

line._transformSet = False

Regards,

-JJ

···

On Mon, Oct 5, 2009 at 12:37 PM, TP <paratribulations@...185...> wrote:

Hi everybody,

I try to move an instance of matplotlib.lines.Line2D from one subplot to
another. How to do that? I have tried the following code, but the Line2D
does not appear on the second subplot.

Thanks in advance,

Julien

###############
from pylab import *

ion()
f = figure()
s = f.add_subplot("211")
line = matplotlib.lines.Line2D([0,1],[0,1],color='m')
s.add_line( line )
s2 = f.add_subplot("212")

draw()

raw_input( 'press a key to remove the line and try to add it to second
subplot' )

line.remove()
s2.add_line( line )
draw()

raw_input('press a key to quit')
#####################

--
python -c "print ''.join([chr(154 - ord(c)) for c in '*9(9&(18%.\
9&1+,\'Z4(55l4('])"

"When a distinguished but elderly scientist states that something is
possible, he is almost certainly right. When he states that something is
impossible, he is very probably wrong." (first law of AC Clarke)

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