I am selecting a region of a color plot with span selector, and I would like
the selected region to stay highlighted. I found the span_stays flag, but the
selection rectangle still disappears after I release the mouse.
Any help is appreciated.
Thanks,
Ned
My backend is 'TkAgg'
I am running the script from python3.4 at the command line, my version is:
Python 3.4.3 (default, Jun 19 2015, 05:46:30)
[GCC 4.8.3 20140911 (Red Hat 4.8.3-9)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> print(matplotlib.__version__)
1.5.0
code example:
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.widgets import SpanSelector
test_data = np.random.randn(1000, 1000)
fig, ax = plt.subplots()
ax.imshow(test_data)
def selection(x1, x2):
"""This function isn't the point"""
pass
span = SpanSelector(ax, selection, 'horizontal', useblit=True,
rectprops=dict(alpha=0.5, facecolor='red'),
span_stays=True)
plt.show()
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