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Commitc2a6c1b

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legend-loc-compass-notation
1 parent74640bb commitc2a6c1b

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3 files changed

+46
-14
lines changed

3 files changed

+46
-14
lines changed

‎lib/matplotlib/legend.py

Lines changed: 8 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -154,6 +154,7 @@ def _update_bbox_to_anchor(self, loc_in_canvas):
154154
'center' 10
155155
=============== =============
156156
157+
157158
bbox_to_anchor : `.BboxBase`, 2-tuple, or 4-tuple of floats
158159
Box that is used to position the legend in conjunction with *loc*.
159160
Defaults to `axes.bbox` (if called as a method to `.Axes.legend`) or
@@ -335,7 +336,9 @@ class Legend(Artist):
335336
'upper center':9,
336337
'center':10,
337338
}
338-
339+
compasscodes= {'nw':2,'n':9,'ne':1,'w':6,'c':10,'e':7,
340+
'sw':3,'s':8,'se':4}
341+
allcodes= {**codes,**compasscodes}
339342
zorder=5
340343

341344
def__str__(self):
@@ -505,23 +508,23 @@ def __init__(self, parent, handles, labels,
505508
ifnotself.isaxesandlocin [0,'best']:
506509
loc='upper right'
507510
ifisinstance(loc,str):
508-
iflocnotinself.codes:
511+
ifloc.lower()notinself.allcodes:
509512
ifself.isaxes:
510513
cbook.warn_deprecated(
511514
"3.1",message="Unrecognized location {!r}. Falling "
512515
"back on 'best'; valid locations are\n\t{}\n"
513516
"This will raise an exception %(removal)s."
514-
.format(loc,'\n\t'.join(self.codes)))
517+
.format(loc,'\n\t'.join(self.allcodes)))
515518
loc=0
516519
else:
517520
cbook.warn_deprecated(
518521
"3.1",message="Unrecognized location {!r}. Falling "
519522
"back on 'upper right'; valid locations are\n\t{}\n'"
520523
"This will raise an exception %(removal)s."
521-
.format(loc,'\n\t'.join(self.codes)))
524+
.format(loc,'\n\t'.join(self.allcodes)))
522525
loc=1
523526
else:
524-
loc=self.codes[loc]
527+
loc=self.allcodes[loc.lower()]
525528
ifnotself.isaxesandloc==0:
526529
cbook.warn_deprecated(
527530
"3.1",message="Automatic legend placement (loc='best') not "

‎lib/matplotlib/rcsetup.py

Lines changed: 9 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -601,16 +601,16 @@ def validate_markevery(s):
601601
validate_legend_loc=ValidateInStrings(
602602
'legend_loc',
603603
['best',
604-
'upper right',
605-
'upper left',
606-
'lower left',
607-
'lower right',
604+
'upper right','ne',
605+
'upper left','nw',
606+
'lower left','sw',
607+
'lower right','se',
608608
'right',
609-
'center left',
610-
'center right',
611-
'lower center',
612-
'upper center',
613-
'center'],ignorecase=True)
609+
'center left','w',
610+
'center right','e',
611+
'lower center','s',
612+
'upper center','n',
613+
'center','c'],ignorecase=True)
614614

615615

616616
defvalidate_svg_fonttype(s):

‎lib/matplotlib/tests/test_legend.py

Lines changed: 29 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -571,3 +571,32 @@ def test_no_warn_big_data_when_loc_specified():
571571
l=ax.legend('best')
572572
fig.canvas.draw()
573573
assertlen(records)==0
574+
575+
576+
deftest_legend_loc_compass_codes():
577+
locs= ['NW','N','NE','W','C','E','SW','S','SE']
578+
codes= [2,9,1,6,10,7,3,8,4]
579+
580+
forlocinlocs:
581+
plt.rcParams["legend.loc"]=loc
582+
assertplt.rcParams["legend.loc"]==loc.lower()
583+
584+
fig1,axes1=plt.subplots(3,3)
585+
fig2,axes2=plt.subplots(3,3)
586+
587+
locs= ['NW','N','NE','W','C','E','SW','S','SE']
588+
codes= [2,9,1,6,10,7,3,8,4]
589+
590+
forax,locinzip(axes1.flat,locs):
591+
ax.plot([1,2],label=loc)
592+
ax.legend(loc=loc)
593+
594+
forax,locinzip(axes2.flat,codes):
595+
ax.plot([1,2],label=loc)
596+
ax.legend(loc=loc)
597+
598+
forax1,ax2inzip(axes1.flat,axes2.flat):
599+
leg1=ax1.get_legend()
600+
leg2=ax2.get_legend()
601+
assertleg1._get_loc()==leg2._get_loc()
602+

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