{{ message }}
Repository navigation
Expand file tree
/
Copy pathtest_patches.py
More file actions
1007 lines (800 loc) · 32.8 KB
/
Copy pathtest_patches.py
File metadata and controls
1007 lines (800 loc) · 32.8 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
"""
Tests specific to the patches module.
"""
import platform
import numpy as np
from numpy.testing import assert_almost_equal, assert_array_equal
import pytest
import matplotlib as mpl
from matplotlib.patches import (Annulus, Ellipse, Patch, Polygon, Rectangle,
FancyArrowPatch, FancyArrow, BoxStyle, Arc)
from matplotlib.testing.decorators import image_comparison, check_figures_equal
from matplotlib.transforms import Bbox
import matplotlib.pyplot as plt
from matplotlib import (
collections as mcollections, colors as mcolors, patches as mpatches,
path as mpath, transforms as mtransforms, rcParams)
def test_Polygon_close():
#: GitHub issue #1018 identified a bug in the Polygon handling
#: of the closed attribute; the path was not getting closed
#: when set_xy was used to set the vertices.
# open set of vertices:
xy = [[0, 0], [0, 1], [1, 1]]
# closed set:
xyclosed = xy + [[0, 0]]
# start with open path and close it:
p = Polygon(xy, closed=True)
assert p.get_closed()
assert_array_equal(p.get_xy(), xyclosed)
p.set_xy(xy)
assert_array_equal(p.get_xy(), xyclosed)
# start with closed path and open it:
p = Polygon(xyclosed, closed=False)
assert_array_equal(p.get_xy(), xy)
p.set_xy(xyclosed)
assert_array_equal(p.get_xy(), xy)
# start with open path and leave it open:
p = Polygon(xy, closed=False)
assert not p.get_closed()
assert_array_equal(p.get_xy(), xy)
p.set_xy(xy)
assert_array_equal(p.get_xy(), xy)
# start with closed path and leave it closed:
p = Polygon(xyclosed, closed=True)
assert_array_equal(p.get_xy(), xyclosed)
p.set_xy(xyclosed)
assert_array_equal(p.get_xy(), xyclosed)
def test_corner_center():
loc = [10, 20]
width = 1
height = 2
# Rectangle
# No rotation
corners = ((10, 20), (11, 20), (11, 22), (10, 22))
rect = Rectangle(loc, width, height)
assert_array_equal(rect.get_corners(), corners)
assert_array_equal(rect.get_center(), (10.5, 21))
# 90 deg rotation
corners_rot = ((10, 20), (10, 21), (8, 21), (8, 20))
rect.set_angle(90)
assert_array_equal(rect.get_corners(), corners_rot)
assert_array_equal(rect.get_center(), (9, 20.5))
# Rotation not a multiple of 90 deg
theta = 33
t = mtransforms.Affine2D().rotate_around(*loc, np.deg2rad(theta))
corners_rot = t.transform(corners)
rect.set_angle(theta)
assert_almost_equal(rect.get_corners(), corners_rot)
# Ellipse
loc = [loc[0] + width / 2,
loc[1] + height / 2]
ellipse = Ellipse(loc, width, height)
# No rotation
assert_array_equal(ellipse.get_corners(), corners)
# 90 deg rotation
corners_rot = ((11.5, 20.5), (11.5, 21.5), (9.5, 21.5), (9.5, 20.5))
ellipse.set_angle(90)
assert_array_equal(ellipse.get_corners(), corners_rot)
# Rotation shouldn't change ellipse center
assert_array_equal(ellipse.get_center(), loc)
# Rotation not a multiple of 90 deg
theta = 33
t = mtransforms.Affine2D().rotate_around(*loc, np.deg2rad(theta))
corners_rot = t.transform(corners)
ellipse.set_angle(theta)
assert_almost_equal(ellipse.get_corners(), corners_rot)
def test_ellipse_vertices():
# expect 0 for 0 ellipse width, height
ellipse = Ellipse(xy=(0, 0), width=0, height=0, angle=0)
assert_almost_equal(
ellipse.get_vertices(),
[(0.0, 0.0), (0.0, 0.0)],
)
assert_almost_equal(
ellipse.get_co_vertices(),
[(0.0, 0.0), (0.0, 0.0)],
)
ellipse = Ellipse(xy=(0, 0), width=2, height=1, angle=30)
assert_almost_equal(
ellipse.get_vertices(),
[
(
ellipse.center[0] + ellipse.width / 4 * np.sqrt(3),
ellipse.center[1] + ellipse.width / 4,
),
(
ellipse.center[0] - ellipse.width / 4 * np.sqrt(3),
ellipse.center[1] - ellipse.width / 4,
),
],
)
assert_almost_equal(
ellipse.get_co_vertices(),
[
(
ellipse.center[0] - ellipse.height / 4,
ellipse.center[1] + ellipse.height / 4 * np.sqrt(3),
),
(
ellipse.center[0] + ellipse.height / 4,
ellipse.center[1] - ellipse.height / 4 * np.sqrt(3),
),
],
)
v1, v2 = np.array(ellipse.get_vertices())
np.testing.assert_almost_equal((v1 + v2) / 2, ellipse.center)
v1, v2 = np.array(ellipse.get_co_vertices())
np.testing.assert_almost_equal((v1 + v2) / 2, ellipse.center)
ellipse = Ellipse(xy=(2.252, -10.859), width=2.265, height=1.98, angle=68.78)
v1, v2 = np.array(ellipse.get_vertices())
np.testing.assert_almost_equal((v1 + v2) / 2, ellipse.center)
v1, v2 = np.array(ellipse.get_co_vertices())
np.testing.assert_almost_equal((v1 + v2) / 2, ellipse.center)
def test_rotate_rect():
loc = np.asarray([1.0, 2.0])
width = 2
height = 3
angle = 30.0
# A rotated rectangle
rect1 = Rectangle(loc, width, height, angle=angle)
# A non-rotated rectangle
rect2 = Rectangle(loc, width, height)
# Set up an explicit rotation matrix (in radians)
angle_rad = np.pi * angle / 180.0
rotation_matrix = np.array([[np.cos(angle_rad), -np.sin(angle_rad)],
[np.sin(angle_rad), np.cos(angle_rad)]])
# Translate to origin, rotate each vertex, and then translate back
new_verts = np.inner(rotation_matrix, rect2.get_verts() - loc).T + loc
# They should be the same
assert_almost_equal(rect1.get_verts(), new_verts)
@check_figures_equal(extensions=['png'])
def test_rotate_rect_draw(fig_test, fig_ref):
ax_test = fig_test.add_subplot()
ax_ref = fig_ref.add_subplot()
loc = (0, 0)
width, height = (1, 1)
angle = 30
rect_ref = Rectangle(loc, width, height, angle=angle)
ax_ref.add_patch(rect_ref)
assert rect_ref.get_angle() == angle
# Check that when the angle is updated after adding to an Axes, that the
# patch is marked stale and redrawn in the correct location
rect_test = Rectangle(loc, width, height)
assert rect_test.get_angle() == 0
ax_test.add_patch(rect_test)
rect_test.set_angle(angle)
assert rect_test.get_angle() == angle
@check_figures_equal(extensions=['png'])
def test_dash_offset_patch_draw(fig_test, fig_ref):
ax_test = fig_test.add_subplot()
ax_ref = fig_ref.add_subplot()
loc = (0.1, 0.1)
width, height = (0.8, 0.8)
rect_ref = Rectangle(loc, width, height, linewidth=3, edgecolor='b',
linestyle=(0, [6, 6]))
# fill the line gaps using a linestyle (0, [0, 6, 6, 0]), which is
# equivalent to (6, [6, 6]) but has 0 dash offset
rect_ref2 = Rectangle(loc, width, height, linewidth=3, edgecolor='r',
linestyle=(0, [0, 6, 6, 0]))
assert rect_ref.get_linestyle() == (0, [6, 6])
assert rect_ref2.get_linestyle() == (0, [0, 6, 6, 0])
ax_ref.add_patch(rect_ref)
ax_ref.add_patch(rect_ref2)
# Check that the dash offset of the rect is the same if we pass it in the
# init method and if we create two rects with appropriate onoff sequence
# of linestyle.
rect_test = Rectangle(loc, width, height, linewidth=3, edgecolor='b',
linestyle=(0, [6, 6]))
rect_test2 = Rectangle(loc, width, height, linewidth=3, edgecolor='r',
linestyle=(6, [6, 6]))
assert rect_test.get_linestyle() == (0, [6, 6])
assert rect_test2.get_linestyle() == (6, [6, 6])
ax_test.add_patch(rect_test)
ax_test.add_patch(rect_test2)
def test_negative_rect():
# These two rectangles have the same vertices, but starting from a
# different point. (We also drop the last vertex, which is a duplicate.)
pos_vertices = Rectangle((-3, -2), 3, 2).get_verts()[:-1]
neg_vertices = Rectangle((0, 0), -3, -2).get_verts()[:-1]
assert_array_equal(np.roll(neg_vertices, 2, 0), pos_vertices)
@image_comparison(['clip_to_bbox.png'])
def test_clip_to_bbox():
fig, ax = plt.subplots()
ax.set_xlim([-18, 20])
ax.set_ylim([-150, 100])
path = mpath.Path.unit_regular_star(8).deepcopy()
path.vertices *= [10, 100]
path.vertices -= [5, 25]
path2 = mpath.Path.unit_circle().deepcopy()
path2.vertices *= [10, 100]
path2.vertices += [10, -25]
combined = mpath.Path.make_compound_path(path, path2)
patch = mpatches.PathPatch(
combined, alpha=0.5, facecolor='coral', edgecolor='none')
ax.add_patch(patch)
bbox = mtransforms.Bbox([[-12, -77.5], [50, -110]])
result_path = combined.clip_to_bbox(bbox)
result_patch = mpatches.PathPatch(
result_path, alpha=0.5, facecolor='green', lw=4, edgecolor='black')
ax.add_patch(result_patch)
@image_comparison(['patch_alpha_coloring'], remove_text=True)
def test_patch_alpha_coloring():
"""
Test checks that the patch and collection are rendered with the specified
alpha values in their facecolor and edgecolor.
"""
star = mpath.Path.unit_regular_star(6)
circle = mpath.Path.unit_circle()
# concatenate the star with an internal cutout of the circle
verts = np.concatenate([circle.vertices, star.vertices[::-1]])
codes = np.concatenate([circle.codes, star.codes])
cut_star1 = mpath.Path(verts, codes)
cut_star2 = mpath.Path(verts + 1, codes)
ax = plt.axes()
col = mcollections.PathCollection([cut_star2],
linewidth=5, linestyles='dashdot',
facecolor=(1, 0, 0, 0.5),
edgecolor=(0, 0, 1, 0.75))
ax.add_collection(col)
patch = mpatches.PathPatch(cut_star1,
linewidth=5, linestyle='dashdot',
facecolor=(1, 0, 0, 0.5),
edgecolor=(0, 0, 1, 0.75))
ax.add_patch(patch)
ax.set_xlim(-1, 2)
ax.set_ylim(-1, 2)
@image_comparison(['patch_alpha_override'], remove_text=True)
def test_patch_alpha_override():
#: Test checks that specifying an alpha attribute for a patch or
#: collection will override any alpha component of the facecolor
#: or edgecolor.
star = mpath.Path.unit_regular_star(6)
circle = mpath.Path.unit_circle()
# concatenate the star with an internal cutout of the circle
verts = np.concatenate([circle.vertices, star.vertices[::-1]])
codes = np.concatenate([circle.codes, star.codes])
cut_star1 = mpath.Path(verts, codes)
cut_star2 = mpath.Path(verts + 1, codes)
ax = plt.axes()
col = mcollections.PathCollection([cut_star2],
linewidth=5, linestyles='dashdot',
alpha=0.25,
facecolor=(1, 0, 0, 0.5),
edgecolor=(0, 0, 1, 0.75))
ax.add_collection(col)
patch = mpatches.PathPatch(cut_star1,
linewidth=5, linestyle='dashdot',
alpha=0.25,
facecolor=(1, 0, 0, 0.5),
edgecolor=(0, 0, 1, 0.75))
ax.add_patch(patch)
ax.set_xlim(-1, 2)
ax.set_ylim(-1, 2)
@mpl.style.context('default')
def test_patch_color_none():
# Make sure the alpha kwarg does not override 'none' facecolor.
# Addresses issue #7478.
c = plt.Circle((0, 0), 1, facecolor='none', alpha=1)
assert c.get_facecolor()[0] == 0
@image_comparison(['patch_custom_linestyle'], remove_text=True)
def test_patch_custom_linestyle():
#: A test to check that patches and collections accept custom dash
#: patterns as linestyle and that they display correctly.
star = mpath.Path.unit_regular_star(6)
circle = mpath.Path.unit_circle()
# concatenate the star with an internal cutout of the circle
verts = np.concatenate([circle.vertices, star.vertices[::-1]])
codes = np.concatenate([circle.codes, star.codes])
cut_star1 = mpath.Path(verts, codes)
cut_star2 = mpath.Path(verts + 1, codes)
ax = plt.axes()
col = mcollections.PathCollection(
[cut_star2],
linewidth=5, linestyles=[(0, (5, 7, 10, 7))],
facecolor=(1, 0, 0), edgecolor=(0, 0, 1))
ax.add_collection(col)
patch = mpatches.PathPatch(
cut_star1,
linewidth=5, linestyle=(0, (5, 7, 10, 7)),
facecolor=(1, 0, 0), edgecolor=(0, 0, 1))
ax.add_patch(patch)
ax.set_xlim(-1, 2)
ax.set_ylim(-1, 2)
def test_patch_linestyle_accents():
#: Test if linestyle can also be specified with short mnemonics like "--"
#: c.f. GitHub issue #2136
star = mpath.Path.unit_regular_star(6)
circle = mpath.Path.unit_circle()
# concatenate the star with an internal cutout of the circle
verts = np.concatenate([circle.vertices, star.vertices[::-1]])
codes = np.concatenate([circle.codes, star.codes])
linestyles = ["-", "--", "-.", ":",
"solid", "dashed", "dashdot", "dotted"]
fig, ax = plt.subplots()
for i, ls in enumerate(linestyles):
star = mpath.Path(verts + i, codes)
patch = mpatches.PathPatch(star,
linewidth=3, linestyle=ls,
facecolor=(1, 0, 0),
edgecolor=(0, 0, 1))
ax.add_patch(patch)
ax.set_xlim([-1, i + 1])
ax.set_ylim([-1, i + 1])
fig.canvas.draw()
@check_figures_equal(extensions=['png'])
def test_patch_linestyle_none(fig_test, fig_ref):
circle = mpath.Path.unit_circle()
ax_test = fig_test.add_subplot()
ax_ref = fig_ref.add_subplot()
for i, ls in enumerate(['none', 'None', ' ', '']):
path = mpath.Path(circle.vertices + i, circle.codes)
patch = mpatches.PathPatch(path,
linewidth=3, linestyle=ls,
facecolor=(1, 0, 0),
edgecolor=(0, 0, 1))
ax_test.add_patch(patch)
patch = mpatches.PathPatch(path,
linewidth=3, linestyle='-',
facecolor=(1, 0, 0),
edgecolor='none')
ax_ref.add_patch(patch)
ax_test.set_xlim([-1, i + 1])
ax_test.set_ylim([-1, i + 1])
ax_ref.set_xlim([-1, i + 1])
ax_ref.set_ylim([-1, i + 1])
def test_wedge_movement():
param_dict = {'center': ((0, 0), (1, 1), 'set_center'),
'r': (5, 8, 'set_radius'),
'width': (2, 3, 'set_width'),
'theta1': (0, 30, 'set_theta1'),
'theta2': (45, 50, 'set_theta2')}
init_args = {k: v[0] for k, v in param_dict.items()}
w = mpatches.Wedge(**init_args)
for attr, (old_v, new_v, func) in param_dict.items():
assert getattr(w, attr) == old_v
getattr(w, func)(new_v)
assert getattr(w, attr) == new_v
@image_comparison(['wedge_range'], remove_text=True,
tol=0 if platform.machine() == 'x86_64' else 0.009)
def test_wedge_range():
ax = plt.axes()
t1 = 2.313869244286224
args = [[52.31386924, 232.31386924],
[52.313869244286224, 232.31386924428622],
[t1, t1 + 180.0],
[0, 360],
[90, 90 + 360],
[-180, 180],
[0, 380],
[45, 46],
[46, 45]]
for i, (theta1, theta2) in enumerate(args):
x = i % 3
y = i // 3
wedge = mpatches.Wedge((x * 3, y * 3), 1, theta1, theta2,
facecolor='none', edgecolor='k', lw=3)
ax.add_artist(wedge)
ax.set_xlim(-2, 8)
ax.set_ylim(-2, 9)
def test_patch_str():
"""
Check that patches have nice and working `str` representation.
Note that the logic is that `__str__` is defined such that:
str(eval(str(p))) == str(p)
"""
p = mpatches.Circle(xy=(1, 2), radius=3)
assert str(p) == 'Circle(xy=(1, 2), radius=3)'
p = mpatches.Ellipse(xy=(1, 2), width=3, height=4, angle=5)
assert str(p) == 'Ellipse(xy=(1, 2), width=3, height=4, angle=5)'
p = mpatches.Rectangle(xy=(1, 2), width=3, height=4, angle=5)
assert str(p) == 'Rectangle(xy=(1, 2), width=3, height=4, angle=5)'
p = mpatches.Wedge(center=(1, 2), r=3, theta1=4, theta2=5, width=6)
assert str(p) == 'Wedge(center=(1, 2), r=3, theta1=4, theta2=5, width=6)'
p = mpatches.Arc(xy=(1, 2), width=3, height=4, angle=5, theta1=6, theta2=7)
expected = 'Arc(xy=(1, 2), width=3, height=4, angle=5, theta1=6, theta2=7)'
assert str(p) == expected
p = mpatches.Annulus(xy=(1, 2), r=(3, 4), width=1, angle=2)
expected = "Annulus(xy=(1, 2), r=(3, 4), width=1, angle=2)"
assert str(p) == expected
p = mpatches.RegularPolygon((1, 2), 20, radius=5)
assert str(p) == "RegularPolygon((1, 2), 20, radius=5, orientation=0)"
p = mpatches.CirclePolygon(xy=(1, 2), radius=5, resolution=20)
assert str(p) == "CirclePolygon((1, 2), radius=5, resolution=20)"
p = mpatches.FancyBboxPatch((1, 2), width=3, height=4)
assert str(p) == "FancyBboxPatch((1, 2), width=3, height=4)"
# Further nice __str__ which cannot be `eval`uated:
path = mpath.Path([(1, 2), (2, 2), (1, 2)], closed=True)
p = mpatches.PathPatch(path)
assert str(p) == "PathPatch3((1, 2) ...)"
p = mpatches.Polygon(np.empty((0, 2)))
assert str(p) == "Polygon0()"
data = [[1, 2], [2, 2], [1, 2]]
p = mpatches.Polygon(data)
assert str(p) == "Polygon3((1, 2) ...)"
p = mpatches.FancyArrowPatch(path=path)
assert str(p)[:27] == "FancyArrowPatch(Path(array("
p = mpatches.FancyArrowPatch((1, 2), (3, 4))
assert str(p) == "FancyArrowPatch((1, 2)->(3, 4))"
p = mpatches.ConnectionPatch((1, 2), (3, 4), 'data')
assert str(p) == "ConnectionPatch((1, 2), (3, 4))"
s = mpatches.Shadow(p, 1, 1)
assert str(s) == "Shadow(ConnectionPatch((1, 2), (3, 4)))"
# Not testing Arrow, FancyArrow here
# because they seem to exist only for historical reasons.
@image_comparison(['multi_color_hatch'], remove_text=True, style='default')
def test_multi_color_hatch():
fig, ax = plt.subplots()
rects = ax.bar(range(5), range(1, 6))
for i, rect in enumerate(rects):
rect.set_facecolor('none')
rect.set_edgecolor(f'C{i}')
rect.set_hatch('/')
ax.autoscale_view()
ax.autoscale(False)
for i in range(5):
with mpl.style.context({'hatch.color': f'C{i}'}):
r = Rectangle((i - .8 / 2, 5), .8, 1, hatch='//', fc='none')
ax.add_patch(r)
@image_comparison(['units_rectangle.png'])
def test_units_rectangle():
import matplotlib.testing.jpl_units as U
U.register()
p = mpatches.Rectangle((5*U.km, 6*U.km), 1*U.km, 2*U.km)
fig, ax = plt.subplots()
ax.add_patch(p)
ax.set_xlim([4*U.km, 7*U.km])
ax.set_ylim([5*U.km, 9*U.km])
@image_comparison(['connection_patch.png'], style='mpl20', remove_text=True,
tol=0 if platform.machine() == 'x86_64' else 0.024)
def test_connection_patch():
fig, (ax1, ax2) = plt.subplots(1, 2)
con = mpatches.ConnectionPatch(xyA=(0.1, 0.1), xyB=(0.9, 0.9),
coordsA='data', coordsB='data',
axesA=ax2, axesB=ax1,
arrowstyle="->")
ax2.add_artist(con)
xyA = (0.6, 1.0) # in axes coordinates
xyB = (0.0, 0.2) # x in axes coordinates, y in data coordinates
coordsA = "axes fraction"
coordsB = ax2.get_yaxis_transform()
con = mpatches.ConnectionPatch(xyA=xyA, xyB=xyB, coordsA=coordsA,
coordsB=coordsB, arrowstyle="-")
ax2.add_artist(con)
@check_figures_equal(extensions=["png"])
def test_connection_patch_fig(fig_test, fig_ref):
# Test that connection patch can be added as figure artist, and that figure
# pixels count negative values from the top right corner (this API may be
# changed in the future).
ax1, ax2 = fig_test.subplots(1, 2)
con = mpatches.ConnectionPatch(
xyA=(.3, .2), coordsA="data", axesA=ax1,
xyB=(-30, -20), coordsB="figure pixels",
arrowstyle="->", shrinkB=5)
fig_test.add_artist(con)
ax1, ax2 = fig_ref.subplots(1, 2)
bb = fig_ref.bbox
# Necessary so that pixel counts match on both sides.
plt.rcParams["savefig.dpi"] = plt.rcParams["figure.dpi"]
con = mpatches.ConnectionPatch(
xyA=(.3, .2), coordsA="data", axesA=ax1,
xyB=(bb.width - 30, bb.height - 20), coordsB="figure pixels",
arrowstyle="->", shrinkB=5)
fig_ref.add_artist(con)
@check_figures_equal(extensions=["png"])
def test_connection_patch_pixel_points(fig_test, fig_ref):
xyA_pts = (.3, .2)
xyB_pts = (-30, -20)
ax1, ax2 = fig_test.subplots(1, 2)
con = mpatches.ConnectionPatch(xyA=xyA_pts, coordsA="axes points", axesA=ax1,
xyB=xyB_pts, coordsB="figure points",
arrowstyle="->", shrinkB=5)
fig_test.add_artist(con)
plt.rcParams["savefig.dpi"] = plt.rcParams["figure.dpi"]
ax1, ax2 = fig_ref.subplots(1, 2)
xyA_pix = (xyA_pts[0]*(fig_ref.dpi/72), xyA_pts[1]*(fig_ref.dpi/72))
xyB_pix = (xyB_pts[0]*(fig_ref.dpi/72), xyB_pts[1]*(fig_ref.dpi/72))
con = mpatches.ConnectionPatch(xyA=xyA_pix, coordsA="axes pixels", axesA=ax1,
xyB=xyB_pix, coordsB="figure pixels",
arrowstyle="->", shrinkB=5)
fig_ref.add_artist(con)
def test_datetime_rectangle():
# Check that creating a rectangle with timedeltas doesn't fail
from datetime import datetime, timedelta
start = datetime(2017, 1, 1, 0, 0, 0)
delta = timedelta(seconds=16)
patch = mpatches.Rectangle((start, 0), delta, 1)
fig, ax = plt.subplots()
ax.add_patch(patch)
def test_datetime_datetime_fails():
from datetime import datetime
start = datetime(2017, 1, 1, 0, 0, 0)
dt_delta = datetime(1970, 1, 5) # Will be 5 days if units are done wrong.
with pytest.raises(TypeError):
mpatches.Rectangle((start, 0), dt_delta, 1)
with pytest.raises(TypeError):
mpatches.Rectangle((0, start), 1, dt_delta)
def test_contains_point():
ell = mpatches.Ellipse((0.5, 0.5), 0.5, 1.0)
points = [(0.0, 0.5), (0.2, 0.5), (0.25, 0.5), (0.5, 0.5)]
path = ell.get_path()
transform = ell.get_transform()
radius = ell._process_radius(None)
expected = np.array([path.contains_point(point,
transform,
radius) for point in points])
result = np.array([ell.contains_point(point) for point in points])
assert np.all(result == expected)
def test_contains_points():
ell = mpatches.Ellipse((0.5, 0.5), 0.5, 1.0)
points = [(0.0, 0.5), (0.2, 0.5), (0.25, 0.5), (0.5, 0.5)]
path = ell.get_path()
transform = ell.get_transform()
radius = ell._process_radius(None)
expected = path.contains_points(points, transform, radius)
result = ell.contains_points(points)
assert np.all(result == expected)
# Currently fails with pdf/svg, probably because some parts assume a dpi of 72.
@check_figures_equal(extensions=["png"])
def test_shadow(fig_test, fig_ref):
xy = np.array([.2, .3])
dxy = np.array([.1, .2])
# We need to work around the nonsensical (dpi-dependent) interpretation of
# offsets by the Shadow class...
plt.rcParams["savefig.dpi"] = "figure"
# Test image.
a1 = fig_test.subplots()
rect = mpatches.Rectangle(xy=xy, width=.5, height=.5)
shadow = mpatches.Shadow(rect, ox=dxy[0], oy=dxy[1])
a1.add_patch(rect)
a1.add_patch(shadow)
# Reference image.
a2 = fig_ref.subplots()
rect = mpatches.Rectangle(xy=xy, width=.5, height=.5)
shadow = mpatches.Rectangle(
xy=xy + fig_ref.dpi / 72 * dxy, width=.5, height=.5,
fc=np.asarray(mcolors.to_rgb(rect.get_facecolor())) * .3,
ec=np.asarray(mcolors.to_rgb(rect.get_facecolor())) * .3,
alpha=.5)
a2.add_patch(shadow)
a2.add_patch(rect)
def test_fancyarrow_units():
from datetime import datetime
# Smoke test to check that FancyArrowPatch works with units
dtime = datetime(2000, 1, 1)
fig, ax = plt.subplots()
arrow = FancyArrowPatch((0, dtime), (0.01, dtime))
def test_fancyarrow_setdata():
fig, ax = plt.subplots()
arrow = ax.arrow(0, 0, 10, 10, head_length=5, head_width=1, width=.5)
expected1 = np.array(
[[13.54, 13.54],
[10.35, 9.65],
[10.18, 9.82],
[0.18, -0.18],
[-0.18, 0.18],
[9.82, 10.18],
[9.65, 10.35],
[13.54, 13.54]]
)
assert np.allclose(expected1, np.round(arrow.verts, 2))
expected2 = np.array(
[[16.71, 16.71],
[16.71, 15.29],
[16.71, 15.29],
[1.71, 0.29],
[0.29, 1.71],
[15.29, 16.71],
[15.29, 16.71],
[16.71, 16.71]]
)
arrow.set_data(
x=1, y=1, dx=15, dy=15, width=2, head_width=2, head_length=1
)
assert np.allclose(expected2, np.round(arrow.verts, 2))
@image_comparison(["large_arc.svg"], style="mpl20")
def test_large_arc():
fig, (ax1, ax2) = plt.subplots(1, 2)
x = 210
y = -2115
diameter = 4261
for ax in [ax1, ax2]:
a = Arc((x, y), diameter, diameter, lw=2, color='k')
ax.add_patch(a)
ax.set_axis_off()
ax.set_aspect('equal')
# force the high accuracy case
ax1.set_xlim(7, 8)
ax1.set_ylim(5, 6)
# force the low accuracy case
ax2.set_xlim(-25000, 18000)
ax2.set_ylim(-20000, 6600)
@image_comparison(["all_quadrants_arcs.svg"], style="mpl20")
def test_rotated_arcs():
fig, ax_arr = plt.subplots(2, 2, squeeze=False, figsize=(10, 10))
scale = 10_000_000
diag_centers = ((-1, -1), (-1, 1), (1, 1), (1, -1))
on_axis_centers = ((0, 1), (1, 0), (0, -1), (-1, 0))
skews = ((2, 2), (2, 1/10), (2, 1/100), (2, 1/1000))
for ax, (sx, sy) in zip(ax_arr.ravel(), skews):
k = 0
for prescale, centers in zip((1 - .0001, (1 - .0001) / np.sqrt(2)),
(on_axis_centers, diag_centers)):
for j, (x_sign, y_sign) in enumerate(centers, start=k):
a = Arc(
(x_sign * scale * prescale,
y_sign * scale * prescale),
scale * sx,
scale * sy,
lw=4,
color=f"C{j}",
zorder=1 + j,
angle=np.rad2deg(np.arctan2(y_sign, x_sign)) % 360,
label=f'big {j}',
gid=f'big {j}'
)
ax.add_patch(a)
k = j+1
ax.set_xlim(-scale / 4000, scale / 4000)
ax.set_ylim(-scale / 4000, scale / 4000)
ax.axhline(0, color="k")
ax.axvline(0, color="k")
ax.set_axis_off()
ax.set_aspect("equal")
def test_fancyarrow_shape_error():
with pytest.raises(ValueError, match="Got unknown shape: 'foo'"):
FancyArrow(0, 0, 0.2, 0.2, shape='foo')
@pytest.mark.parametrize('fmt, match', (
("foo", "Unknown style: 'foo'"),
("Round,foo", "Incorrect style argument: 'Round,foo'"),
))
def test_boxstyle_errors(fmt, match):
with pytest.raises(ValueError, match=match):
BoxStyle(fmt)
@image_comparison(baseline_images=['annulus'], extensions=['png'])
def test_annulus():
fig, ax = plt.subplots()
cir = Annulus((0.5, 0.5), 0.2, 0.05, fc='g') # circular annulus
ell = Annulus((0.5, 0.5), (0.5, 0.3), 0.1, 45, # elliptical
fc='m', ec='b', alpha=0.5, hatch='xxx')
ax.add_patch(cir)
ax.add_patch(ell)
ax.set_aspect('equal')
@image_comparison(baseline_images=['annulus'], extensions=['png'])
def test_annulus_setters():
fig, ax = plt.subplots()
cir = Annulus((0., 0.), 0.2, 0.01, fc='g') # circular annulus
ell = Annulus((0., 0.), (1, 2), 0.1, 0, # elliptical
fc='m', ec='b', alpha=0.5, hatch='xxx')
ax.add_patch(cir)
ax.add_patch(ell)
ax.set_aspect('equal')
cir.center = (0.5, 0.5)
cir.radii = 0.2
cir.width = 0.05
ell.center = (0.5, 0.5)
ell.radii = (0.5, 0.3)
ell.width = 0.1
ell.angle = 45
@image_comparison(baseline_images=['annulus'], extensions=['png'])
def test_annulus_setters2():
fig, ax = plt.subplots()
cir = Annulus((0., 0.), 0.2, 0.01, fc='g') # circular annulus
ell = Annulus((0., 0.), (1, 2), 0.1, 0, # elliptical
fc='m', ec='b', alpha=0.5, hatch='xxx')
ax.add_patch(cir)
ax.add_patch(ell)
ax.set_aspect('equal')
cir.center = (0.5, 0.5)
cir.set_semimajor(0.2)
cir.set_semiminor(0.2)
assert cir.radii == (0.2, 0.2)
cir.width = 0.05
ell.center = (0.5, 0.5)
ell.set_semimajor(0.5)
ell.set_semiminor(0.3)
assert ell.radii == (0.5, 0.3)
ell.width = 0.1
ell.angle = 45
def test_degenerate_polygon():
point = [0, 0]
correct_extents = Bbox([point, point]).extents
assert np.all(Polygon([point]).get_extents().extents == correct_extents)
@pytest.mark.parametrize('kwarg', ('edgecolor', 'facecolor'))
def test_color_override_warning(kwarg):
with pytest.warns(UserWarning,
match="Setting the 'color' property will override "
"the edgecolor or facecolor properties."):
Patch(color='black', **{kwarg: 'black'})
def test_empty_verts():
poly = Polygon(np.zeros((0, 2)))
assert poly.get_verts() == []
def test_default_antialiased():
patch = Patch()
patch.set_antialiased(not rcParams['patch.antialiased'])
assert patch.get_antialiased() == (not rcParams['patch.antialiased'])
# Check that None resets the state
patch.set_antialiased(None)
assert patch.get_antialiased() == rcParams['patch.antialiased']
def test_default_linestyle():
patch = Patch()
patch.set_linestyle('--')
patch.set_linestyle(None)
assert patch.get_linestyle() == 'solid'
def test_default_capstyle():
patch = Patch()
assert patch.get_capstyle() == 'butt'
def test_default_joinstyle():
patch = Patch()
assert patch.get_joinstyle() == 'miter'
@image_comparison(["autoscale_arc"], extensions=['png', 'svg'],
style="mpl20", remove_text=True)
def test_autoscale_arc():
fig, axs = plt.subplots(1, 3, figsize=(4, 1))
arc_lists = (
[Arc((0, 0), 1, 1, theta1=0, theta2=90)],
[Arc((0.5, 0.5), 1.5, 0.5, theta1=10, theta2=20)],
[Arc((0.5, 0.5), 1.5, 0.5, theta1=10, theta2=20),
Arc((0.5, 0.5), 2.5, 0.5, theta1=110, theta2=120),
Arc((0.5, 0.5), 3.5, 0.5, theta1=210, theta2=220),
Arc((0.5, 0.5), 4.5, 0.5, theta1=310, theta2=320)])
for ax, arcs in zip(axs, arc_lists):
for arc in arcs:
ax.add_patch(arc)
ax.autoscale()
@check_figures_equal(extensions=["png", 'svg', 'pdf', 'eps'])
def test_arc_in_collection(fig_test, fig_ref):
arc1 = Arc([.5, .5], .5, 1, theta1=0, theta2=60, angle=20)
arc2 = Arc([.5, .5], .5, 1, theta1=0, theta2=60, angle=20)
col = mcollections.PatchCollection(patches=[arc2], facecolors='none',
edgecolors='k')
fig_ref.subplots().add_patch(arc1)
fig_test.subplots().add_collection(col)
@check_figures_equal(extensions=["png", 'svg', 'pdf', 'eps'])
def test_modifying_arc(fig_test, fig_ref):
arc1 = Arc([.5, .5], .5, 1, theta1=0, theta2=60, angle=20)
arc2 = Arc([.5, .5], 1.5, 1, theta1=0, theta2=60, angle=10)
fig_ref.subplots().add_patch(arc1)
fig_test.subplots().add_patch(arc2)
arc2.set_width(.5)
arc2.set_angle(20)
def test_arrow_set_data():
fig, ax = plt.subplots()
arrow = mpl.patches.Arrow(2, 0, 0, 10)
expected1 = np.array(
[[1.9, 0.],
[2.1, -0.],
[2.1, 8.],
[2.3, 8.],
[2., 10.],
[1.7, 8.],
[1.9, 8.],
[1.9, 0.]]
)
assert np.allclose(expected1, np.round(arrow.get_verts(), 2))
expected2 = np.array(
[[0.39, 0.04],
[0.61, -0.04],
[3.01, 6.36],
[3.24, 6.27],
[3.5, 8.],
[2.56, 6.53],
[2.79, 6.44],
[0.39, 0.04]]
)
arrow.set_data(x=.5, dx=3, dy=8, width=1.2)
assert np.allclose(expected2, np.round(arrow.get_verts(), 2))
@check_figures_equal(extensions=["png", "pdf", "svg", "eps"])
def test_set_and_get_hatch_linewidth(fig_test, fig_ref):
ax_test = fig_test.add_subplot()
ax_ref = fig_ref.add_subplot()
lw = 2.0
with plt.rc_context({"hatch.linewidth": lw}):
ax_ref.add_patch(mpatches.Rectangle((0, 0), 1, 1, hatch="x"))
ax_test.add_patch(mpatches.Rectangle((0, 0), 1, 1, hatch="x"))
ax_test.patches[0].set_hatch_linewidth(lw)
assert ax_ref.patches[0].get_hatch_linewidth() == lw
You can’t perform that action at this time.