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POC: make scaling optional in Collection.get_linestyle#29304

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Original file line numberDiff line numberDiff line change
Expand Up@@ -145,15 +145,14 @@ def create_artists(self, legend, orig_handle,
exceptIndexError:
color=orig_handle.get_colors()[0]
try:
dashes=orig_handle.get_dashes()[i]
linestyle=orig_handle.get_linestyle(scaled=False)[i]
exceptIndexError:
dashes=orig_handle.get_dashes()[0]
linestyle=orig_handle.get_linestyle(scaled=False)[0]
try:
lw=orig_handle.get_linewidths()[i]
exceptIndexError:
lw=orig_handle.get_linewidths()[0]
ifdashes[1]isnotNone:
legline.set_dashes(dashes[1])
legline.set_linestyle(linestyle)
legline.set_color(color)
legline.set_transform(trans)
legline.set_linewidth(lw)
Expand Down
12 changes: 10 additions & 2 deletionslib/matplotlib/collections.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -626,6 +626,11 @@ def set_linestyle(self, ls):
':', '', (offset, on-off-seq)}. See `.Line2D.set_linestyle` for a
complete description.
"""
ifisinstance(ls, (str,tuple)):
self._original_linestyle= [ls]
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@rcomerrcomerDec 13, 2024•
edited
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I got a lot more failures if I did not make sure this is a list. I note thatCollection.get_facecolor always returns a sequence of colours, having appliedto_rgba_array.

else:
self._original_linestyle=ls

try:
dashes= [mlines._get_dash_pattern(ls)]
exceptValueError:
Expand DownExpand Up@@ -866,8 +871,11 @@ def set_alpha(self, alpha):
defget_linewidth(self):
returnself._linewidths

defget_linestyle(self):
returnself._linestyles
defget_linestyle(self,scaled=False):
ifscaled:
returnself._linestyles

returnself._original_linestyle

def_set_mappable_flags(self):
"""
Expand Down
2 changes: 1 addition & 1 deletionlib/matplotlib/collections.pyi
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Original file line numberDiff line numberDiff line change
Expand Up@@ -68,7 +68,7 @@ class Collection(colorizer.ColorizingArtist):
defset_edgecolor(self,c:ColorType|Sequence[ColorType])->None: ...
defset_alpha(self,alpha:float|Sequence[float]|None)->None: ...
defget_linewidth(self)->float|Sequence[float]: ...
defget_linestyle(self)->LineStyleType|Sequence[LineStyleType]: ...
defget_linestyle(self,scaled:bool= ...)->LineStyleType|Sequence[LineStyleType]: ...
defupdate_scalarmappable(self)->None: ...
defget_fill(self)->bool: ...
defupdate_from(self,other:Artist)->None: ...
Expand Down
5 changes: 3 additions & 2 deletionslib/matplotlib/legend_handler.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -407,7 +407,7 @@ def get_numpoints(self, legend):

def_default_update_prop(self,legend_handle,orig_handle):
lw=orig_handle.get_linewidths()[0]
dashes=orig_handle._us_linestyles[0]
dashes=orig_handle.get_linestyles(scaled=False)[0]
color=orig_handle.get_colors()[0]
legend_handle.set_color(color)
legend_handle.set_linestyle(dashes)
Expand DownExpand Up@@ -798,7 +798,8 @@ def get_first(prop_array):
legend_handle._hatch_color=orig_handle._hatch_color
# Setters are fine for the remaining attributes.
legend_handle.set_linewidth(get_first(orig_handle.get_linewidths()))
legend_handle.set_linestyle(get_first(orig_handle.get_linestyles()))
legend_handle.set_linestyle(
get_first(orig_handle.get_linestyles(scaled=False)))
legend_handle.set_transform(get_first(orig_handle.get_transforms()))
legend_handle.set_figure(orig_handle.get_figure())
# Alpha is already taken into account by the color attributes.
Expand Down
8 changes: 4 additions & 4 deletionslib/matplotlib/tests/test_collections.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -86,7 +86,7 @@ def test__EventCollection__get_props():
# check that the default lineoffset matches the input lineoffset
assertprops['lineoffset']==coll.get_lineoffset()
# check that the default linestyle matches the input linestyle
assertcoll.get_linestyle()== [(0,None)]
assertcoll.get_linestyle(scaled=True)== [(0,None)]
# check that the default color matches the input color
forcolorin [coll.get_color(),*coll.get_colors()]:
np.testing.assert_array_equal(color,props['color'])
Expand DownExpand Up@@ -248,7 +248,7 @@ def test__EventCollection__set_lineoffset():
])
deftest__EventCollection__set_prop():
forprop,value,expectedin [
('linestyle','dashed', [(0, (6.0,6.0))]),
('linestyle','dashed', ['dashed']),
('linestyle', (0, (6.,6.)), [(0, (6.0,6.0))]),
('linewidth',5,5),
]:
Expand DownExpand Up@@ -666,11 +666,11 @@ def test_lslw_bcast():
col.set_linestyles(['-','-'])
col.set_linewidths([1,2,3])

assertcol.get_linestyles()== [(0,None)]*6
assertcol.get_linestyles(scaled=True)== [(0,None)]*6
assertcol.get_linewidths()== [1,2,3]*2

col.set_linestyles(['-','-','-'])
assertcol.get_linestyles()== [(0,None)]*3
assertcol.get_linestyles(scaled=True)== [(0,None)]*3
assert (col.get_linewidths()== [1,2,3]).all()


Expand Down
12 changes: 11 additions & 1 deletionlib/matplotlib/tests/test_legend.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -528,6 +528,16 @@ def test_legend_stackplot():
ax.legend(loc='best')


@mpl.style.context('default')
def test_polycollection_linestyles_unscaled():
fig, ax = plt.subplots()
q = ax.quiver(0, 0, 7, 1, label='v1 + v2', linewidth=3, linestyle='dotted')
leg = ax.legend()
handle, = leg.legend_handles

assert q.get_linestyle(scaled=False)[0] == handle.get_linestyle()


def test_cross_figure_patch_legend():
fig, ax = plt.subplots()
fig2, ax2 = plt.subplots()
Expand DownExpand Up@@ -612,7 +622,7 @@ def test_linecollection_scaled_dashes():
h1, h2, h3 = leg.legend_handles

for oh, lh in zip((lc1, lc2, lc3), (h1, h2, h3)):
assert oh.get_linestyles()[0] == lh._dash_pattern
assert oh.get_linestyles()[0] == lh.get_linestyle()


def test_handler_numpoints():
Expand Down
2 changes: 1 addition & 1 deletionlib/mpl_toolkits/mplot3d/tests/test_legend3d.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,7 @@ def test_linecollection_scaled_dashes():
h1,h2,h3=leg.legend_handles

foroh,lhinzip((lc1,lc2,lc3), (h1,h2,h3)):
assertoh.get_linestyles()[0]==lh._dash_pattern
assertoh.get_linestyles()[0]==lh.get_linestyle()


deftest_handlerline3d():
Expand Down
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