8000 Fix default colouring of Shadows by QuLogic · Pull Request #17656 · matplotlib/matplotlib · GitHub
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Fix default colouring of Shadows #17656

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Merged
tacaswell merged 2 commits into from
Jun 17, 2020
Merged

Fix default colouring of Shadows #17656

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ab3478c
Fix default artist properties for Shadow.
QuLogic Jun 17, 2020
3497b07
Simplify setup of pie() shadows.
QuLogic Jun 17, 2020
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3 changes: 1 addition & 2 deletions lib/matplotlib/axes/_axes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3076,8 +3076,7 @@ def get_next_color():
if shadow:
# Make sure to add a shadow after the call to add_patch so the
# figure and transform props will be set.
shad = mpatches.Shadow(w, -0.02, -0.02)
shad.set(zorder=0.9 * w.get_zorder(), label='_nolegend_')
shad = mpatches.Shadow(w, -0.02, -0.02, label='_nolegend_')
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@timhoffm timhoffm Jun 17, 2020

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Don‘t we need zorder?

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@QuLogic QuLogic Jun 17, 2020

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Shadow sets a default zorder (immediately below the parent patch) that's better than this manually calculated one.

self.add_patch(shad)

if labeldistance is not None:
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17 changes: 9 additions & 8 deletions lib/matplotlib/patches.py
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8000
Original file line number Diff line number Diff line change
Expand Up @@ -645,7 +645,14 @@ def __init__(self, patch, ox, oy, props=None, **kwargs):
self.patch = patch
# Note: when removing props, we can directly pass kwargs to _update()
# and remove self._props
self._props = {**(props if props is not None else {}), **kwargs}
if props is None:
color = .3 * np.asarray(colors.to_rgb(self.patch.get_facecolor()))
props = {
'facecolor': color,
'edgecolor': color,
'alpha': 0.5,
}
self._props = {**props, **kwargs}
self._ox, self._oy = ox, oy
self._shadow_transform = transforms.Affine2D()
self._update()
Expand All @@ -658,13 +665,7 @@ def _update(self):
# Place the shadow patch directly behind the inherited patch.
self.set_zorder(np.nextafter(self.patch.zorder, -np.inf))

if self._props:
self.update(self._props)
else:
color = .3 * np.asarray(colors.to_rgb(self.patch.get_facecolor()))
self.set_facecolor(color)
self.set_edgecolor(color)
self.set_alpha(0.5)
self.update(self._props)

def _update_transform(self, renderer):
ox = renderer.points_to_pixels(self._ox)
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