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I want to create a draggable annotation box with Matplotlib. However, my ax is defined on a SubFigure object rather than a Figure.

The following short code shows how the text box cannot be dragged in that case (unless it's located "outside" the plot area):

import matplotlib.pyplot as plt

fig = plt.figure()
subfig = fig.subfigures()
ax = subfig.add_subplot()

bbox_args = dict(boxstyle="round", facecolor="wheat")

an1 = ax.annotate("Text is outside, so draggable", xy=(0.5, 1.1), xycoords=ax.transAxes, bbox=bbox_args)
an2 = ax.annotate("Text is inside, so not draggable", xy=(0.3, 0.5), xycoords=ax.transAxes, bbox=bbox_args)

an1.draggable()
an2.draggable()


plt.show()

In fact, once you drag the outside text box and leave it inside, it will be stuck there forever!

Without relying on subfig, both boxes would be draggable, but how to do it with subfig?

Trenton McKinney
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Username_22
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  • Nice example: it appears that anything inside the area is NOT draggable. even if i drag from outside to inside, the then becomes NOT draggable. – D.L Jun 11 '23 at 17:42

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