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Commit9d8c9b6

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committed
Allow empty linestyle for collections
1 parentf25c2d0 commit9d8c9b6

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4 files changed

+48
-39
lines changed

4 files changed

+48
-39
lines changed

‎lib/matplotlib/collections.py

Lines changed: 15 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -105,9 +105,9 @@ def __init__(self,
105105
Face color for each patch making up the collection.
106106
linewidths : float or list of floats, default: :rc:`patch.linewidth`
107107
Line width for each patch making up the collection.
108-
linestyles :str or tuple or list thereof, default: 'solid'
109-
Valid strings are ['solid', 'dashed', 'dashdot', 'dotted', '-',
110-
'--', '-.', ':'].Dash tuples should be of the form::
108+
linestyles :{'-', '--', '-.', ':', '', (offset, on-off-seq), ...}\
109+
or list thereof, default:'solid'
110+
Dash tuples should be of the form::
111111
112112
(offset, onoffseq),
113113
@@ -586,14 +586,15 @@ def set_linestyle(self, ls):
586586
"""
587587
Set the linestyle(s) for the collection.
588588
589-
=========================== =================
590-
linestyle description
591-
=========================== =================
592-
``'-'`` or ``'solid'`` solid line
593-
``'--'`` or ``'dashed'`` dashed line
594-
``'-.'`` or ``'dashdot'`` dash-dotted line
595-
``':'`` or ``'dotted'`` dotted line
596-
=========================== =================
589+
========================================== =================
590+
linestyle description
591+
========================================== =================
592+
``'-'`` or ``'solid'`` solid line
593+
``'--'`` or ``'dashed'`` dashed line
594+
``'-.'`` or ``'dashdot'`` dash-dotted line
595+
``':'`` or ``'dotted'`` dotted line
596+
``'none'``, ``'None'``, ``' '``, or ``''`` draw nothing
597+
========================================== =================
597598
598599
Alternatively a dash tuple of the following form can be provided::
599600
@@ -603,14 +604,12 @@ def set_linestyle(self, ls):
603604
604605
Parameters
605606
----------
606-
ls : str or tuple or list thereof
607-
Valid values for individual linestyles include {'-', '--', '-.',
608-
':', '', (offset, on-off-seq)}. See `.Line2D.set_linestyle` for a
609-
complete description.
607+
ls : {'-', '--', '-.', ':', '', (offset, on-off-seq), ...}\
608+
or list thereof, default: 'solid'
609+
See `.Line2D.set_linestyle` for a complete description.
610610
"""
611611
try:
612612
ifisinstance(ls,str):
613-
ls=cbook.ls_mapper.get(ls,ls)
614613
dashes= [mlines._get_dash_pattern(ls)]
615614
else:
616615
try:

‎lib/matplotlib/lines.py

Lines changed: 30 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -29,19 +29,28 @@
2929
_log=logging.getLogger(__name__)
3030

3131

32-
def_get_dash_pattern(style):
32+
def_get_dash_pattern(style,return_ls=False):
3333
"""Convert linestyle to dash pattern."""
34-
# go from short hand -> full strings
3534
ifisinstance(style,str):
36-
style=ls_mapper.get(style,style)
35+
# check valid string
36+
_api.check_in_list([*Line2D._lineStyles,*ls_mapper_r],ls=style)
37+
# go from full strings -> short
38+
style=ls_mapper_r.get(style,style)
39+
# normalize empty style
40+
ifstylein ('',' ','none'):
41+
style='None'
42+
ls=style
43+
else:
44+
ls='--'
45+
3746
# un-dashed styles
38-
ifstylein['solid','None']:
47+
ifstylein('-','None'):
3948
offset=0
4049
dashes=None
4150
# dashed styles
42-
elifstylein['dashed','dashdot','dotted']:
51+
elifstylein('--','-.',':'):
4352
offset=0
44-
dashes=tuple(rcParams['lines.{}_pattern'.format(style)])
53+
dashes=tuple(rcParams['lines.{}_pattern'.format(ls_mapper[style])])
4554
#
4655
elifisinstance(style,tuple):
4756
offset,dashes=style
@@ -52,12 +61,22 @@ def _get_dash_pattern(style):
5261

5362
# normalize offset to be positive and shorter than the dash cycle
5463
ifdashesisnotNone:
64+
ifany(dash<0.0fordashindashes):
65+
raiseValueError(
66+
"All values in the dash list must be non-negative")
67+
iflen(dashes)andnotany(dash>0.0fordashindashes):
68+
raiseValueError(
69+
'At least one value in the dash list must be positive')
70+
ifoffsetisNone:
71+
raiseValueError(f'Unrecognized linestyle:{style!r}')
5572
dsum=sum(dashes)
5673
ifdsum:
5774
offset%=dsum
5875

59-
returnoffset,dashes
60-
76+
ifreturn_ls:
77+
return (offset,dashes),ls
78+
else:
79+
returnoffset,dashes
6180

6281
def_scale_dashes(offset,dashes,lw):
6382
ifnotrcParams['lines.scale_dashes']:
@@ -223,6 +242,7 @@ class Line2D(Artist):
223242
'-.':'_draw_dash_dot',
224243
':':'_draw_dotted',
225244
'None':'_draw_nothing',
245+
'none':'_draw_nothing',
226246
' ':'_draw_nothing',
227247
'':'_draw_nothing',
228248
}
@@ -1108,16 +1128,8 @@ def set_linestyle(self, ls):
11081128
11091129
For examples see :doc:`/gallery/lines_bars_and_markers/linestyles`.
11101130
"""
1111-
ifisinstance(ls,str):
1112-
iflsin [' ','','none']:
1113-
ls='None'
1114-
_api.check_in_list([*self._lineStyles,*ls_mapper_r],ls=ls)
1115-
iflsnotinself._lineStyles:
1116-
ls=ls_mapper_r[ls]
1117-
self._linestyle=ls
1118-
else:
1119-
self._linestyle='--'
1120-
self._unscaled_dash_pattern=_get_dash_pattern(ls)
1131+
self._unscaled_dash_pattern,self._linestyle=_get_dash_pattern(ls,
1132+
True)
11211133
self._dash_pattern=_scale_dashes(
11221134
*self._unscaled_dash_pattern,self._linewidth)
11231135
self.stale=True

‎lib/matplotlib/patches.py

Lines changed: 2 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -421,10 +421,8 @@ def set_linestyle(self, ls):
421421
"""
422422
iflsisNone:
423423
ls="solid"
424-
iflsin [' ','','none']:
425-
ls='None'
426-
self._linestyle=ls
427-
self._unscaled_dash_pattern=mlines._get_dash_pattern(ls)
424+
self._unscaled_dash_pattern,self._linestyle= (
425+
mlines._get_dash_pattern(ls,True))
428426
self._dash_pattern=mlines._scale_dashes(
429427
*self._unscaled_dash_pattern,self._linewidth)
430428
self.stale=True

‎lib/matplotlib/tests/test_patches.py

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -797,7 +797,7 @@ def test_default_linestyle():
797797
patch=Patch()
798798
patch.set_linestyle('--')
799799
patch.set_linestyle(None)
800-
assertpatch.get_linestyle()=='solid'
800+
assertpatch.get_linestyle()=='-'
801801

802802

803803
deftest_default_capstyle():

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