matplotlib-users Mailing List for matplotlib (Page 2)

I am trying to change the underlying data for my plot via a pick event,
except that the matplotlib examples for picking show a couple of functions
with predefined signatures and I can't seem to figure out how to modify my
data from within those functions...how to do it? 

Here is a minimal example of what I am trying to do:

[code]
import matplotlib.pyplot as plt

def pick_rlines(art,mouseevent):
   button = mouseevent.button
   key = mouseevent.key
   
   wsf.nnn = 4          # <-- how to modify wsf.nnn from here?
   print "wsf.nnn = ", wsf.nnn
   props = dict(nnn=wsf.nnn)
   return True, props 
       
def pick_handler(event):
   mouseevent = event.mouseevent
   button = mouseevent.button
   key = mouseevent.key
   art = event.artist
  
   wsf.nnn = event.nnn  # <-- or from here ?
      
class AAA():
   pass

class BBB():     
   def __init__(self):
      pass
      
   wsf=AAA()            # when it is defined here?
   wsf.nnn=0
   GR = [1.0, 2.0, 3.0, 4.0]

   fig = plt.figure()
   ax = fig.add_axes([0.1,0.1,0.75,0.75])
   ax.set_aspect(1)         
   rlines = ax.hlines(GR,0.0,4.0,picker=pick_rlines)   
   fig.canvas.mpl_connect('pick_event', pick_handler)            
   plt.show()

if __name__ == '__main__':
   the = BBB()
   
[/code]

thanks in advance for any pointers.
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