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Add ability to unshare a pair of shared [xy] axes #1312

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Add ability to unshare a pair of shared [xy] axes #1312

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58 changes: 46 additions & 12 deletions lib/matplotlib/axes/_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -313,9 +313,6 @@ class _AxesBase(martist.Artist):
"""
name = "rectilinear"

_shared_x_axes = cbook.Grouper()
_shared_y_axes = cbook.Grouper()

def __str__(self):
return "Axes(%g,%g;%gx%g)" % tuple(self._position.bounds)

Expand Down Expand Up @@ -391,17 +388,23 @@ def __init__(self, fig, rect,
self.set_aspect('auto')
self._adjustable = 'box'
self.set_anchor('C')

self._shared_x_axes = []
self._shared_y_axes = []

self._sharex = sharex
self._sharey = sharey
if sharex is not None:
self._shared_x_axes.join(self, sharex)
self._shared_x_axes.append(sharex)
sharex._shared_x_axes.append(self)
if sharex._adjustable == 'box':
sharex._adjustable = 'datalim'
#warnings.warn(
# 'shared axes: "adjustable" is being changed to "datalim"')
self._adjustable = 'datalim'
if sharey is not None:
self._shared_y_axes.join(self, sharey)
self._shared_y_axes.append(sharey)
sharey._shared_y_axes.append(self)
if sharey._adjustable == 'box':
sharey._adjustable = 'datalim'
#warnings.warn(
Expand Down Expand Up @@ -934,9 +937,6 @@ def cla(self):
self.xaxis.set_clip_path(self.patch)
self.yaxis.set_clip_path(self.patch)

self._shared_x_axes.clean()
self._shared_y_axes.clean()

def clear(self):
"""clear the axes"""
self.cla()
Expand Down Expand Up @@ -1893,7 +1893,8 @@ def autoscale_view(self, tight=None, scalex=True, scaley=True):
_tight = self._tight = bool(tight)

if scalex and self._autoscaleXon:
xshared = self._shared_x_axes.get_siblings(self)
xshared = self._shared_x_axes[:]
xshared.append(self)
dl = [ax.dataLim for ax in xshared]
bb = mtransforms.BboxBase.union(dl)
x0, x1 = bb.intervalx
Expand All @@ -1914,7 +1915,8 @@ def autoscale_view(self, tight=None, scalex=True, scaley=True):
self.set_xbound(x0, x1)

if scaley and self._autoscaleYon:
yshared = self._shared_y_axes.get_siblings(self)
yshared = self._shared_y_axes[:]
yshared.append(self)
dl = [ax.dataLim for ax in yshared]
bb = mtransforms.BboxBase.union(dl)
y0, y1 = bb.intervaly
Expand Down Expand Up @@ -2515,7 +2517,7 @@ def set_xlim(self, left=None, right=None, emit=True, auto=False, **kw):
if emit:
self.callbacks.process('xlim_changed', self)
# Call all of the other x-axes that are shared with this one
for other in self._shared_x_axes.get_siblings(self):
for other in self._shared_x_axes:
if other is not self:
other.set_xlim(self.viewLim.intervalx,
emit=False, auto=auto)
Expand Down Expand Up @@ -2741,7 +2743,7 @@ def set_ylim(self, bottom=None, top=None, emit=True, auto=False, **kw):
if emit:
self.callbacks.process('ylim_changed', self)
# Call all of the other y-axes that are shared with this one
for other in self._shared_y_axes.get_siblings(self):
for other in self._shared_y_axes:
if other is not self:
other.set_ylim(self.viewLim.intervaly,
emit=False, auto=auto)
Expand Down Expand Up @@ -3250,4 +3252,36 @@ def get_shared_y_axes(self):
'Return a copy of the shared axes Grouper object for y axes'
return self._shared_y_axes

def unshare_x_axes(self, ax):
"""Unshare the shared x axes between *ax* and *self*"""
ax_shared_x = ax.get_shared_x_axes()

self._shared_x_axes.remove(ax)
ax_shared_x.remove(self)

self._sharex = None
ax._sharex = None

# Only set adjustable back to 'box' if there are no other shared axes
if len([axkey for axkey in self._shared_x_axes]) == 0:
self.set_adjustable('box')

if len([axkey for axkey in ax_shared_x]) == 0:
ax.set_adjustable('box')

def unshare_y_axes(self, ax):
"""Unshare the shared y axes between *ax* and *self*"""
ax_shared_y = ax.get_shared_y_axes()

self._shared_y_axes.remove(ax)
ax_shared_y.remove(self)

self._sharey = None
ax._sharey = None

# Only set adjustable back to 'box' if there are no other shared axes
if len([axkey for axkey in self._shared_y_axes]) == 0:
self.set_adjustable('box')

if len([axkey for axkey in ax_shared_y]) == 0:
ax.set_adjustable('box')