On Wed, Feb 10, 2010 at 4:43 AM, Nils Wagner
<[email protected]> wrote:
> Hi all,
>
> How can I combine onpick events with annotate ?
> Any pointer would be appreciated.
>
> import numpy as np
> import matplotlib.pyplot as plt
>
> fig = plt.figure()
> ax = fig.add_subplot(111)
> ax.set_title('click on points')
>
> line, = ax.plot(np.random.rand(100), 'o', picker=5) # 5
> points tolerance
>
> def onpick(event):
> thisline = event.artist
> xdata = thisline.get_xdata()
> ydata = thisline.get_ydata()
> ind = event.ind
> print 'onpick points:', zip(xdata[ind], ydata[ind]),
> ind
> ax.annotate('Test',xy=(ind,
> ydata[ind]),horizontalalignment='left',verticalalignment='top')
> # ax.redraw_in_frame()
You need to call fig.canvas.draw() at the end of onpick.
JDH
>
> fig.canvas.mpl_connect('pick_event', onpick)
>
> plt.show()
>
>
>
> Thanks in advance.
>
> Nils
>
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