jens
03e36d74cc
git-svn-id: http://moon:8086/svn/projects/Stock@302 fda53097-d464-4ada-af97-ba876c37ca34
26 lines
714 B
Python
26 lines
714 B
Python
from matplotlib import pyplot as plt
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class LineBuilder:
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def __init__(self, line):
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self.line = line
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self.xs = list(line.get_xdata())
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self.ys = list(line.get_ydata())
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self.cid = line.figure.canvas.mpl_connect('button_press_event', self)
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def __call__(self, event):
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print('click', event)
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if event.inaxes!=self.line.axes: return
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self.xs.append(event.xdata)
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self.ys.append(event.ydata)
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self.line.set_data(self.xs, self.ys)
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self.line.figure.canvas.draw()
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fig = plt.figure()
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ax = fig.add_subplot(111)
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ax.set_title('click to build line segments')
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line, = ax.plot([0], [0]) # empty line
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linebuilder = LineBuilder(line)
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plt.show()
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