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Backport PR #23174: Make sure SubFigure has _cachedRenderer #23184

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Merged
merged 1 commit into from
Jun 4, 2022
Merged

Backport PR #23174: Make sure SubFigure has _cachedRenderer #23184

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8 changes: 8 additions & 0 deletions lib/matplotlib/figure.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2082,6 +2082,14 @@ def dpi(self):
def dpi(self, value):
self._parent.dpi = value

@property
def _cachedRenderer(self):
return self._parent._cachedRenderer

@_cachedRenderer.setter
def _cachedRenderer(self, renderer):
self._parent._cachedRenderer = renderer

def _redo_transform_rel_fig(self, bbox=None):
"""
Make the transSubfigure bbox relative to Figure transform.
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20 changes: 20 additions & 0 deletions lib/matplotlib/tests/test_contour.py
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Expand Up @@ -520,3 +520,23 @@ def test_contour_autolabel_beyond_powerlimits():
ax.clabel(cs)
# Currently, the exponent is missing, but that may be fixed in the future.
assert {text.get_text() for text in ax.texts} == {"0.25", "1.00", "4.00"}


def test_subfigure_clabel():
# Smoke test for gh#23173
delta = 0.025
x = np.arange(-3.0, 3.0, delta)
y = np.arange(-2.0, 2.0, delta)
X, Y = np.meshgrid(x, y)
Z1 = np.exp(-(X**2) - Y**2)
Z2 = np.exp(-((X - 1) ** 2) - (Y - 1) ** 2)
Z = (Z1 - Z2) * 2

fig = plt.figure()
figs = fig.subfigures(nrows=1, ncols=2)

for f in figs:
ax = f.subplots()
CS = ax.contour(X, Y, Z)
ax.clabel(CS, inline=True, fontsize=10)
ax.set_title("Simplest default with labels")