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Commitd86cc2b

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Fix colors for scatter() with unfilled markers
Previously, markers with fillstyle='none' still were drawn with a facecolor.
1 parent2a3707d commitd86cc2b

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2 files changed

+15
-5
lines changed

2 files changed

+15
-5
lines changed

‎lib/matplotlib/axes/_axes.py‎

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4393,8 +4393,9 @@ def scatter(self, x, y, s=None, c=None, marker=None, cmap=None, norm=None,
43934393
- 'none': No patch boundary will be drawn.
43944394
- A color or sequence of colors.
43954395
4396-
For non-filled markers, the *edgecolors* kwarg is ignored and
4397-
forced to 'face' internally.
4396+
For non-filled markers, *edgecolors* is ignored. Instead, the color
4397+
is determined like with 'face', i.e. from *c*, *colors*, or
4398+
*facecolors*.
43984399
43994400
plotnonfinite : bool, default: False
44004401
Set to plot points with nonfinite *c*, in conjunction with
@@ -4476,7 +4477,6 @@ def scatter(self, x, y, s=None, c=None, marker=None, cmap=None, norm=None,
44764477
path=marker_obj.get_path().transformed(
44774478
marker_obj.get_transform())
44784479
ifnotmarker_obj.is_filled():
4479-
edgecolors='face'
44804480
iflinewidthsisNone:
44814481
linewidths=rcParams['lines.linewidth']
44824482
elifnp.iterable(linewidths):
@@ -4488,8 +4488,8 @@ def scatter(self, x, y, s=None, c=None, marker=None, cmap=None, norm=None,
44884488

44894489
collection=mcoll.PathCollection(
44904490
(path,),scales,
4491-
facecolors=colors,
4492-
edgecolors=edgecolors,
4491+
facecolors=colorsifmarker_obj.is_filled()else'none',
4492+
edgecolors=edgecolorsifmarker_obj.is_filled()elsecolors,
44934493
linewidths=linewidths,
44944494
offsets=offsets,
44954495
transOffset=kwargs.pop('transform',self.transData),

‎lib/matplotlib/tests/test_axes.py‎

Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1837,6 +1837,16 @@ def test_scatter_color(self):
18371837
withpytest.raises(ValueError):
18381838
plt.scatter([1,2,3], [1,2,3],color=[1,2,3])
18391839

1840+
deftest_scatter_unfilled(self):
1841+
coll=plt.scatter([0,1,2], [1,3,2],c=['0.1','0.3','0.5'],
1842+
marker=mmarkers.MarkerStyle('o',fillstyle='none'),
1843+
linewidths=[1.1,1.2,1.3])
1844+
assertcoll.get_facecolors().shape== (0,4)# no facecolors
1845+
assert_array_equal(coll.get_edgecolors(), [[0.1,0.1,0.1,1],
1846+
[0.3,0.3,0.3,1],
1847+
[0.5,0.5,0.5,1]])
1848+
assert_array_equal(coll.get_linewidths(), [1.1,1.2,1.3])
1849+
18401850
deftest_scatter_size_arg_size(self):
18411851
x=np.arange(4)
18421852
withpytest.raises(ValueError):

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