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Backport PR #28739 on branch v3.9.x (Tweak interactivity docs wording (and fix capitalization).) #28740

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Merged
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Aug 21, 2024
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Backport PR #28739 on branch v3.9.x (Tweak interactivity docs wording (and fix capitalization).) #28740

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15 changes: 9 additions & 6 deletions galleries/users_explain/figure/event_handling.rst
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Expand Up @@ -251,7 +251,8 @@ is created every time a mouse is pressed::

def __call__(self, event):
print('click', event)
if event.inaxes!=self.line.axes: return
if event.inaxes != self.line.axes:
return
self.xs.append(event.xdata)
self.ys.append(event.ydata)
self.line.set_data(self.xs, self.ys)
Expand All @@ -277,17 +278,19 @@ event.ydata)``. In addition to the ``LocationEvent`` attributes, it also has:
Draggable rectangle exercise
----------------------------

Write draggable rectangle class that is initialized with a
Write a draggable rectangle class that is initialized with a
`.Rectangle` instance but will move its ``xy``
location when dragged. Hint: you will need to store the original
``xy`` location of the rectangle which is stored as rect.xy and
location when dragged.

Hint: You will need to store the original
``xy`` location of the rectangle which is stored as ``rect.xy`` and
connect to the press, motion and release mouse events. When the mouse
is pressed, check to see if the click occurs over your rectangle (see
`.Rectangle.contains`) and if it does, store
the rectangle xy and the location of the mouse click in data coords.
the rectangle xy and the location of the mouse click in data coordinates.
In the motion event callback, compute the deltax and deltay of the
mouse movement, and add those deltas to the origin of the rectangle
you stored. The redraw the figure. On the button release event, just
you stored, then redraw the figure. On the button release event, just
reset all the button press data you stored as None.

Here is the solution::
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2 changes: 1 addition & 1 deletion galleries/users_explain/figure/interactive.rst
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Expand Up @@ -10,7 +10,7 @@
Interactive figures
===================

When working with data, interactivity can be invaluable. The pan/zoom and
Interactivity can be invaluable when exploring plots. The pan/zoom and
mouse-location tools built into the Matplotlib GUI windows are often sufficient, but
you can also use the event system to build customized data exploration tools.

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2 changes: 1 addition & 1 deletion galleries/users_explain/figure/interactive_guide.rst
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Expand Up @@ -236,7 +236,7 @@ which would poll for new data and update the figure at 1Hz.

.. _spin_event_loop:

Explicitly spinning the event Loop
Explicitly spinning the event loop
----------------------------------

.. autosummary::
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