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Annotation text bbox calculated incorrectly in matplotlib>=1.4.3? #4139

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@joferkington

Description

@joferkington

Prior to matplotlib 1.4.3, text bounding boxes created with annotate did not include the connection arrow. Starting with 1.4.3 and continuing up to the current HEAD, the bbox includes the connection arrow.

As an example:

import matplotlib.pyplot as plt
import matplotlib

fig, ax = plt.subplots()

ax.annotate('Matplotlib {}'.format(matplotlib.__version__),
            xy=(0.1, 0.1), xytext=(50, 50), size=20,
            xycoords='data', textcoords='offset points',
            bbox=dict(alpha=0.5, fc='yellow'),
            arrowprops=dict(arrowstyle='->'))

plt.show()

mpl1 4 2

mpl1 4 3

mpl_github

This may be related to #4012?

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