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Backport PR #14109 on branch v3.1.x #14136

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Merged
merged 1 commit into from
May 6, 2019
Merged

Backport PR #14109 on branch v3.1.x #14136

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26 changes: 22 additions & 4 deletions lib/matplotlib/pyplot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -245,6 +245,7 @@ def switch_backend(newbackend):
def show(*args, **kw):
"""
Display a figure.

When running in ipython with its pylab mode, display all
figures and return to the ipython prompt.

Expand Down Expand Up @@ -338,6 +339,11 @@ def gci():
:class:`~matplotlib.collections.Collection` instances. The
current image is an attribute of the current axes, or the nearest
earlier axes in the current figure that contains an image.

Notes
-----
Historically, the only colorable artists were images; hence the name
``gci`` (get current image).
"""
return gcf()._gci()

Expand Down Expand Up @@ -426,7 +432,6 @@ def figure(num=None, # autoincrement if None, else integer from 1-N

Parameters
----------

num : integer or string, optional, default: None
If not provided, a new figure will be created, and the figure number
will be incremented. The figure objects holds this number in a `number`
Expand Down Expand Up @@ -579,7 +584,12 @@ def _auto_draw_if_interactive(fig, val):


def gcf():
"""Get a reference to the current figure."""
"""
Get the current figure.

If no current figure exists, a new one is created using
`~.pyplot.figure()`.
"""
figManager = _pylab_helpers.Gcf.get_active()
if figManager is not None:
return figManager.canvas.figure
Expand All @@ -606,9 +616,17 @@ def get_figlabels():

def get_current_fig_manager():
"""
Return the figure manager of the active figure.
Return the figure manager of the current figure.

The figure manager is a container for the actual backend-depended window
that displays the figure on screen.

If there is currently no active figure, a new one is created.
If if no current figure exists, a new one is created an its figure
manager is returned.

Returns
-------
manager : `.FigureManagerBase` or backend-dependent subclass thereof
"""
figManager = _pylab_helpers.Gcf.get_active()
if figManager is None:
Expand Down