-
Notifications
You must be signed in to change notification settings - Fork 60
Expand file tree
/
Copy pathbackend_bases_api.html
More file actions
2350 lines (2143 loc) · 196 KB
/
backend_bases_api.html
File metadata and controls
2350 lines (2143 loc) · 196 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
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>matplotlib.backend_bases — Matplotlib 3.1.2 documentation</title>
<link rel="stylesheet" href="../_static/mpl.css?v3.1.1-79-g90d53b526"
type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css"
type="text/css" />
<link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
<link rel="stylesheet" href="../_static/gallery.css" type="text/css" />
<link rel="stylesheet" href="../_static/copybutton.css" type="text/css" />
<script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<script type="text/javascript" src="../_static/language_data.js"></script>
<script type="text/javascript" src="../_static/clipboard.min.js"></script>
<script type="text/javascript" src="../_static/copybutton.js"></script>
<script type="text/javascript">var copybuttonSkipText = '>>> ';</script>
<script async="async" type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-AMS-MML_HTMLorMML"></script>
<link rel="search" type="application/opensearchdescription+xml"
title="Search within Matplotlib 3.1.2 documentation"
href="../_static/opensearch.xml"/>
<link rel="shortcut icon" href="../_static/favicon.ico"/>
<link rel="index" title="Index" href="../genindex.html"
/>
<link rel="search" title="Search" href="../search.html"
/>
<link rel="top" title="Matplotlib 3.1.2 documentation" href="../index.html" />
<link rel="up" title="API Overview" href="index.html" />
<link rel="next" title="matplotlib.backend_managers" href="backend_managers_api.html" />
<link rel="prev" title="matplotlib.axis.YAxis.zorder" href="_as_gen/matplotlib.axis.YAxis.zorder.html" />
<link rel="canonical" href="https://matplotlib.org/stable/api/backend_bases_api.html" />
<script data-domain="matplotlib.org" defer="defer" src="https://views.scientific-python.org/js/script.js"></script>
</head>
<body>
<div id="unreleased-message"> You are reading an old version of the documentation (v3.1.1). For the latest version see <a href="https://matplotlib.org/stable/api/backend_bases_api.html">https://matplotlib.org/stable/api/backend_bases_api.html</a></div>
<div style="background-color: white; text-align: left; padding: 10px 10px 15px 15px; position: relative;">
<a href="../index.html">
<div style="float: left; position: absolute; width: 496px; bottom: 0; padding-bottom: 24px"><span style="float: right; color: #789; background: white">Version 3.1.2</span></div>
<img src="../_static/logo2_compressed.svg" height="125px" border="0" alt="matplotlib"/></a>
<!-- The "Fork me on github" ribbon -->
<div id="forkongithub"><a href="https://github.com/matplotlib/matplotlib">Fork me on GitHub</a></div>
</div>
<nav class="main-nav">
<ul>
<li><a href="../users/installing.html">Installation</a></li>
<li><a href="../contents.html">Documentation</a></li>
<li><a href="../gallery/index.html">Examples</a></li>
<li><a href="../tutorials/index.html">Tutorials</a></li>
<li><a href="../devel/index.html">Contributing</a></li>
</ul>
</nav>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="backend_managers_api.html" title="matplotlib.backend_managers"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="_as_gen/matplotlib.axis.YAxis.zorder.html" title="matplotlib.axis.YAxis.zorder"
accesskey="P">previous</a> |</li>
<li><a href="../index.html">home</a>| </li>
<li><a href="../contents.html">contents</a> »</li>
<li><a href="index.html" accesskey="U">API Overview</a> »</li>
</ul>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<div id="searchbox" style="display: none" role="search">
<h3>Quick search</h3>
<div class="searchformwrapper">
<form class="search" action="../search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script><div class="relations">
<h3>Related Topics</h3>
<ul>
<li><a href="../contents.html">Documentation overview</a><ul>
<li><a href="index.html">API Overview</a><ul>
<li>Previous: <a href="_as_gen/matplotlib.axis.YAxis.zorder.html" title="previous chapter">matplotlib.axis.YAxis.zorder</a></li>
<li>Next: <a href="backend_managers_api.html" title="next chapter"><code class="docutils literal notranslate"><span class="pre">matplotlib.backend_managers</span></code></a></li>
</ul></li>
</ul></li>
</ul>
</div>
<div id="sidebar-pagesource" role="note" aria-label="source link"
style="margin-top: 1.5em; padding-top: 0.1em; border-top: 1px solid #86989b">
<a href="../_sources/api/backend_bases_api.rst.txt"
style="color: #c0c0c0" rel="nofollow">Show Page Source</a>
</div>
</div>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="section" id="module-matplotlib.backend_bases">
<span id="matplotlib-backend-bases"></span><h1><a class="reference internal" href="#module-matplotlib.backend_bases" title="matplotlib.backend_bases"><code class="xref py py-mod docutils literal notranslate"><span class="pre">matplotlib.backend_bases</span></code></a><a class="headerlink" href="#module-matplotlib.backend_bases" title="Permalink to this headline">¶</a></h1>
<p>Abstract base classes define the primitives that renderers and
graphics contexts must implement to serve as a matplotlib backend</p>
<dl class="docutils">
<dt><a class="reference internal" href="#matplotlib.backend_bases.RendererBase" title="matplotlib.backend_bases.RendererBase"><code class="xref py py-class docutils literal notranslate"><span class="pre">RendererBase</span></code></a></dt>
<dd>An abstract base class to handle drawing/rendering operations.</dd>
<dt><a class="reference internal" href="#matplotlib.backend_bases.FigureCanvasBase" title="matplotlib.backend_bases.FigureCanvasBase"><code class="xref py py-class docutils literal notranslate"><span class="pre">FigureCanvasBase</span></code></a></dt>
<dd>The abstraction layer that separates the
<a class="reference internal" href="_as_gen/matplotlib.figure.Figure.html#matplotlib.figure.Figure" title="matplotlib.figure.Figure"><code class="xref py py-class docutils literal notranslate"><span class="pre">matplotlib.figure.Figure</span></code></a> from the backend specific
details like a user interface drawing area</dd>
<dt><a class="reference internal" href="#matplotlib.backend_bases.GraphicsContextBase" title="matplotlib.backend_bases.GraphicsContextBase"><code class="xref py py-class docutils literal notranslate"><span class="pre">GraphicsContextBase</span></code></a></dt>
<dd>An abstract base class that provides color, line styles, etc...</dd>
<dt><a class="reference internal" href="#matplotlib.backend_bases.Event" title="matplotlib.backend_bases.Event"><code class="xref py py-class docutils literal notranslate"><span class="pre">Event</span></code></a></dt>
<dd>The base class for all of the matplotlib event
handling. Derived classes such as <a class="reference internal" href="#matplotlib.backend_bases.KeyEvent" title="matplotlib.backend_bases.KeyEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">KeyEvent</span></code></a> and
<a class="reference internal" href="#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">MouseEvent</span></code></a> store the meta data like keys and buttons
pressed, x and y locations in pixel and
<a class="reference internal" href="axes_api.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes"><code class="xref py py-class docutils literal notranslate"><span class="pre">Axes</span></code></a> coordinates.</dd>
<dt><a class="reference internal" href="#matplotlib.backend_bases.ShowBase" title="matplotlib.backend_bases.ShowBase"><code class="xref py py-class docutils literal notranslate"><span class="pre">ShowBase</span></code></a></dt>
<dd>The base class for the Show class of each interactive backend;
the 'show' callable is then set to Show.__call__, inherited from
ShowBase.</dd>
<dt><a class="reference internal" href="#matplotlib.backend_bases.ToolContainerBase" title="matplotlib.backend_bases.ToolContainerBase"><code class="xref py py-class docutils literal notranslate"><span class="pre">ToolContainerBase</span></code></a></dt>
<dd>The base class for the Toolbar class of each interactive backend.</dd>
<dt><a class="reference internal" href="#matplotlib.backend_bases.StatusbarBase" title="matplotlib.backend_bases.StatusbarBase"><code class="xref py py-class docutils literal notranslate"><span class="pre">StatusbarBase</span></code></a></dt>
<dd>The base class for the messaging area.</dd>
</dl>
<dl class="class">
<dt id="matplotlib.backend_bases.CloseEvent">
<em class="property">class </em><code class="descclassname">matplotlib.backend_bases.</code><code class="descname">CloseEvent</code><span class="sig-paren">(</span><em>name</em>, <em>canvas</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#CloseEvent"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.CloseEvent" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#matplotlib.backend_bases.Event" title="matplotlib.backend_bases.Event"><code class="xref py py-class docutils literal notranslate"><span class="pre">matplotlib.backend_bases.Event</span></code></a></p>
<p>An event triggered by a figure being closed.</p>
</dd></dl>
<dl class="class">
<dt id="matplotlib.backend_bases.DrawEvent">
<em class="property">class </em><code class="descclassname">matplotlib.backend_bases.</code><code class="descname">DrawEvent</code><span class="sig-paren">(</span><em>name</em>, <em>canvas</em>, <em>renderer</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#DrawEvent"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.DrawEvent" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#matplotlib.backend_bases.Event" title="matplotlib.backend_bases.Event"><code class="xref py py-class docutils literal notranslate"><span class="pre">matplotlib.backend_bases.Event</span></code></a></p>
<p>An event triggered by a draw operation on the canvas</p>
<p>In most backends callbacks subscribed to this callback will be
fired after the rendering is complete but before the screen is
updated. Any extra artists drawn to the canvas's renderer will
be reflected without an explicit call to <code class="docutils literal notranslate"><span class="pre">blit</span></code>.</p>
<div class="admonition warning">
<p class="first admonition-title">Warning</p>
<p class="last">Calling <code class="docutils literal notranslate"><span class="pre">canvas.draw</span></code> and <code class="docutils literal notranslate"><span class="pre">canvas.blit</span></code> in these callbacks may
not be safe with all backends and may cause infinite recursion.</p>
</div>
<p>In addition to the <a class="reference internal" href="#matplotlib.backend_bases.Event" title="matplotlib.backend_bases.Event"><code class="xref py py-class docutils literal notranslate"><span class="pre">Event</span></code></a> attributes, the following event
attributes are defined:</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Attributes:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>renderer</strong> <span class="classifier-delimiter">:</span> <span class="classifier"><a class="reference internal" href="#matplotlib.backend_bases.RendererBase" title="matplotlib.backend_bases.RendererBase"><code class="xref py py-obj docutils literal notranslate"><span class="pre">RendererBase</span></code></a></span></dt>
<dd><p class="first last">the renderer for the draw event</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="class">
<dt id="matplotlib.backend_bases.Event">
<em class="property">class </em><code class="descclassname">matplotlib.backend_bases.</code><code class="descname">Event</code><span class="sig-paren">(</span><em>name</em>, <em>canvas</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#Event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.Event" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.8)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>A matplotlib event. Attach additional attributes as defined in
<a class="reference internal" href="#matplotlib.backend_bases.FigureCanvasBase.mpl_connect" title="matplotlib.backend_bases.FigureCanvasBase.mpl_connect"><code class="xref py py-meth docutils literal notranslate"><span class="pre">FigureCanvasBase.mpl_connect()</span></code></a>. The following attributes
are defined and shown with their default values</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Attributes:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>name</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str</span></dt>
<dd><p class="first last">the event name</p>
</dd>
<dt><strong>canvas</strong> <span class="classifier-delimiter">:</span> <span class="classifier"><a class="reference internal" href="#matplotlib.backend_bases.FigureCanvasBase" title="matplotlib.backend_bases.FigureCanvasBase"><code class="xref py py-obj docutils literal notranslate"><span class="pre">FigureCanvasBase</span></code></a></span></dt>
<dd><p class="first last">the backend-specific canvas instance generating the event</p>
</dd>
<dt><strong>guiEvent</strong></dt>
<dd><p class="first last">the GUI event that triggered the matplotlib event</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="class">
<dt id="matplotlib.backend_bases.FigureCanvasBase">
<em class="property">class </em><code class="descclassname">matplotlib.backend_bases.</code><code class="descname">FigureCanvasBase</code><span class="sig-paren">(</span><em>figure</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.8)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>The canvas the figure renders into.</p>
<p>Public attributes</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Attributes:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>figure</strong> <span class="classifier-delimiter">:</span> <span class="classifier"><a class="reference internal" href="_as_gen/matplotlib.figure.Figure.html#matplotlib.figure.Figure" title="matplotlib.figure.Figure"><code class="xref py py-obj docutils literal notranslate"><span class="pre">matplotlib.figure.Figure</span></code></a></span></dt>
<dd><p class="first last">A high-level figure instance</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.blit">
<code class="descname">blit</code><span class="sig-paren">(</span><em>self</em>, <em>bbox=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.blit"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.blit" title="Permalink to this definition">¶</a></dt>
<dd><p>Blit the canvas in bbox (default entire canvas).</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.button_press_event">
<code class="descname">button_press_event</code><span class="sig-paren">(</span><em>self</em>, <em>x</em>, <em>y</em>, <em>button</em>, <em>dblclick=False</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.button_press_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.button_press_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Backend derived classes should call this function on any mouse
button press. x,y are the canvas coords: 0,0 is lower, left.
button and key are as defined in <a class="reference internal" href="#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">MouseEvent</span></code></a>.</p>
<p>This method will be call all functions connected to the
'button_press_event' with a <a class="reference internal" href="#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">MouseEvent</span></code></a> instance.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.button_release_event">
<code class="descname">button_release_event</code><span class="sig-paren">(</span><em>self</em>, <em>x</em>, <em>y</em>, <em>button</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.button_release_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.button_release_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Backend derived classes should call this function on any mouse
button release.</p>
<p>This method will call all functions connected to the
'button_release_event' with a <a class="reference internal" href="#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">MouseEvent</span></code></a> instance.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>x</strong> <span class="classifier-delimiter">:</span> <span class="classifier">scalar</span></dt>
<dd><p class="first last">the canvas coordinates where 0=left</p>
</dd>
<dt><strong>y</strong> <span class="classifier-delimiter">:</span> <span class="classifier">scalar</span></dt>
<dd><p class="first last">the canvas coordinates where 0=bottom</p>
</dd>
<dt><strong>guiEvent</strong></dt>
<dd><p class="first last">the native UI event that generated the mpl event</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.close_event">
<code class="descname">close_event</code><span class="sig-paren">(</span><em>self</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.close_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.close_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Pass a <a class="reference internal" href="#matplotlib.backend_bases.CloseEvent" title="matplotlib.backend_bases.CloseEvent"><code class="xref py py-obj docutils literal notranslate"><span class="pre">CloseEvent</span></code></a> to all functions connected to <code class="docutils literal notranslate"><span class="pre">close_event</span></code>.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.draw">
<code class="descname">draw</code><span class="sig-paren">(</span><em>self</em>, <em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.draw"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.draw" title="Permalink to this definition">¶</a></dt>
<dd><p>Render the <a class="reference internal" href="_as_gen/matplotlib.figure.Figure.html#matplotlib.figure.Figure" title="matplotlib.figure.Figure"><code class="xref py py-class docutils literal notranslate"><span class="pre">Figure</span></code></a>.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.draw_cursor">
<code class="descname">draw_cursor</code><span class="sig-paren">(</span><em>self</em>, <em>event</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.draw_cursor"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.draw_cursor" title="Permalink to this definition">¶</a></dt>
<dd><p>Draw a cursor in the event.axes if inaxes is not None. Use
native GUI drawing for efficiency if possible</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.draw_event">
<code class="descname">draw_event</code><span class="sig-paren">(</span><em>self</em>, <em>renderer</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.draw_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.draw_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Pass a <a class="reference internal" href="#matplotlib.backend_bases.DrawEvent" title="matplotlib.backend_bases.DrawEvent"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DrawEvent</span></code></a> to all functions connected to <code class="docutils literal notranslate"><span class="pre">draw_event</span></code>.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.draw_idle">
<code class="descname">draw_idle</code><span class="sig-paren">(</span><em>self</em>, <em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.draw_idle"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.draw_idle" title="Permalink to this definition">¶</a></dt>
<dd><p>Request a widget redraw once control returns to the GUI event loop.</p>
<p>Even if multiple calls to <a class="reference internal" href="#matplotlib.backend_bases.FigureCanvasBase.draw_idle" title="matplotlib.backend_bases.FigureCanvasBase.draw_idle"><code class="xref py py-obj docutils literal notranslate"><span class="pre">draw_idle</span></code></a> occur before control returns
to the GUI event loop, the figure will only be rendered once.</p>
<p class="rubric">Notes</p>
<p>Backends may choose to override the method and implement their own
strategy to prevent multiple renderings.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.enter_notify_event">
<code class="descname">enter_notify_event</code><span class="sig-paren">(</span><em>self</em>, <em>guiEvent=None</em>, <em>xy=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.enter_notify_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.enter_notify_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Backend derived classes should call this function when entering
canvas</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>guiEvent</strong></dt>
<dd><p class="first last">the native UI event that generated the mpl event</p>
</dd>
<dt><strong>xy</strong> <span class="classifier-delimiter">:</span> <span class="classifier">(float, float)</span></dt>
<dd><p class="first last">the coordinate location of the pointer when the canvas is
entered</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="attribute">
<dt id="matplotlib.backend_bases.FigureCanvasBase.events">
<code class="descname">events</code><em class="property"> = ['resize_event', 'draw_event', 'key_press_event', 'key_release_event', 'button_press_event', 'button_release_event', 'scroll_event', 'motion_notify_event', 'pick_event', 'idle_event', 'figure_enter_event', 'figure_leave_event', 'axes_enter_event', 'axes_leave_event', 'close_event']</em><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.events" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="attribute">
<dt id="matplotlib.backend_bases.FigureCanvasBase.filetypes">
<code class="descname">filetypes</code><em class="property"> = {'eps': 'Encapsulated Postscript', 'pdf': 'Portable Document Format', 'pgf': 'PGF code for LaTeX', 'png': 'Portable Network Graphics', 'ps': 'Postscript', 'raw': 'Raw RGBA bitmap', 'rgba': 'Raw RGBA bitmap', 'svg': 'Scalable Vector Graphics', 'svgz': 'Scalable Vector Graphics'}</em><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.filetypes" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="attribute">
<dt id="matplotlib.backend_bases.FigureCanvasBase.fixed_dpi">
<code class="descname">fixed_dpi</code><em class="property"> = None</em><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.fixed_dpi" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.flush_events">
<code class="descname">flush_events</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.flush_events"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.flush_events" title="Permalink to this definition">¶</a></dt>
<dd><p>Flush the GUI events for the figure.</p>
<p>Interactive backends need to reimplement this method.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.get_default_filename">
<code class="descname">get_default_filename</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.get_default_filename"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.get_default_filename" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a string, which includes extension, suitable for use as
a default filename.</p>
</dd></dl>
<dl class="classmethod">
<dt id="matplotlib.backend_bases.FigureCanvasBase.get_default_filetype">
<em class="property">classmethod </em><code class="descname">get_default_filetype</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.get_default_filetype"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.get_default_filetype" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the default savefig file format as specified in rcParam
<code class="docutils literal notranslate"><span class="pre">savefig.format</span></code>. Returned string excludes period. Overridden
in backends that only support a single file type.</p>
</dd></dl>
<dl class="classmethod">
<dt id="matplotlib.backend_bases.FigureCanvasBase.get_supported_filetypes">
<em class="property">classmethod </em><code class="descname">get_supported_filetypes</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.get_supported_filetypes"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.get_supported_filetypes" title="Permalink to this definition">¶</a></dt>
<dd><p>Return dict of savefig file formats supported by this backend</p>
</dd></dl>
<dl class="classmethod">
<dt id="matplotlib.backend_bases.FigureCanvasBase.get_supported_filetypes_grouped">
<em class="property">classmethod </em><code class="descname">get_supported_filetypes_grouped</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.get_supported_filetypes_grouped"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.get_supported_filetypes_grouped" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a dict of savefig file formats supported by this backend,
where the keys are a file type name, such as 'Joint Photographic
Experts Group', and the values are a list of filename extensions used
for that filetype, such as ['jpg', 'jpeg'].</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.get_width_height">
<code class="descname">get_width_height</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.get_width_height"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.get_width_height" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the figure width and height in points or pixels
(depending on the backend), truncated to integers</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.get_window_title">
<code class="descname">get_window_title</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.get_window_title"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.get_window_title" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the title text of the window containing the figure.
Return None if there is no window (e.g., a PS backend).</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.grab_mouse">
<code class="descname">grab_mouse</code><span class="sig-paren">(</span><em>self</em>, <em>ax</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.grab_mouse"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.grab_mouse" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the child axes which are currently grabbing the mouse events.
Usually called by the widgets themselves.
It is an error to call this if the mouse is already grabbed by
another axes.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.inaxes">
<code class="descname">inaxes</code><span class="sig-paren">(</span><em>self</em>, <em>xy</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.inaxes"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.inaxes" title="Permalink to this definition">¶</a></dt>
<dd><p>Check if a point is in an axes.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first docutils">
<dt><strong>xy</strong> <span class="classifier-delimiter">:</span> <span class="classifier">tuple or list</span></dt>
<dd><p class="first last">(x,y) coordinates.
x position - pixels from left of canvas.
y position - pixels from bottom of canvas.</p>
</dd>
</dl>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt>axes: topmost axes containing the point, or None if no axes.</dt>
<dd></dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.is_saving">
<code class="descname">is_saving</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.is_saving"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.is_saving" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns whether the renderer is in the process of saving
to a file, rather than rendering for an on-screen buffer.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.key_press_event">
<code class="descname">key_press_event</code><span class="sig-paren">(</span><em>self</em>, <em>key</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.key_press_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.key_press_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Pass a <a class="reference internal" href="#matplotlib.backend_bases.KeyEvent" title="matplotlib.backend_bases.KeyEvent"><code class="xref py py-obj docutils literal notranslate"><span class="pre">KeyEvent</span></code></a> to all functions connected to <code class="docutils literal notranslate"><span class="pre">key_press_event</span></code>.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.key_release_event">
<code class="descname">key_release_event</code><span class="sig-paren">(</span><em>self</em>, <em>key</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.key_release_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.key_release_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Pass a <a class="reference internal" href="#matplotlib.backend_bases.KeyEvent" title="matplotlib.backend_bases.KeyEvent"><code class="xref py py-obj docutils literal notranslate"><span class="pre">KeyEvent</span></code></a> to all functions connected to <code class="docutils literal notranslate"><span class="pre">key_release_event</span></code>.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.leave_notify_event">
<code class="descname">leave_notify_event</code><span class="sig-paren">(</span><em>self</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.leave_notify_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.leave_notify_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Backend derived classes should call this function when leaving
canvas</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>guiEvent</strong></dt>
<dd><p class="first last">the native UI event that generated the mpl event</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.motion_notify_event">
<code class="descname">motion_notify_event</code><span class="sig-paren">(</span><em>self</em>, <em>x</em>, <em>y</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.motion_notify_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.motion_notify_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Backend derived classes should call this function on any
motion-notify-event.</p>
<p>This method will call all functions connected to the
'motion_notify_event' with a <a class="reference internal" href="#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">MouseEvent</span></code></a> instance.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>x</strong> <span class="classifier-delimiter">:</span> <span class="classifier">scalar</span></dt>
<dd><p class="first last">the canvas coordinates where 0=left</p>
</dd>
<dt><strong>y</strong> <span class="classifier-delimiter">:</span> <span class="classifier">scalar</span></dt>
<dd><p class="first last">the canvas coordinates where 0=bottom</p>
</dd>
<dt><strong>guiEvent</strong></dt>
<dd><p class="first last">the native UI event that generated the mpl event</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.mpl_connect">
<code class="descname">mpl_connect</code><span class="sig-paren">(</span><em>self</em>, <em>s</em>, <em>func</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.mpl_connect"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.mpl_connect" title="Permalink to this definition">¶</a></dt>
<dd><p>Connect event with string <em>s</em> to <em>func</em>. The signature of <em>func</em> is:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">func</span><span class="p">(</span><span class="n">event</span><span class="p">)</span>
</pre></div>
</div>
<p>where event is a <a class="reference internal" href="#matplotlib.backend_bases.Event" title="matplotlib.backend_bases.Event"><code class="xref py py-class docutils literal notranslate"><span class="pre">matplotlib.backend_bases.Event</span></code></a>. The
following events are recognized</p>
<ul class="simple">
<li>'button_press_event'</li>
<li>'button_release_event'</li>
<li>'draw_event'</li>
<li>'key_press_event'</li>
<li>'key_release_event'</li>
<li>'motion_notify_event'</li>
<li>'pick_event'</li>
<li>'resize_event'</li>
<li>'scroll_event'</li>
<li>'figure_enter_event',</li>
<li>'figure_leave_event',</li>
<li>'axes_enter_event',</li>
<li>'axes_leave_event'</li>
<li>'close_event'</li>
</ul>
<p>For the location events (button and key press/release), if the
mouse is over the axes, the variable <code class="docutils literal notranslate"><span class="pre">event.inaxes</span></code> will be
set to the <a class="reference internal" href="axes_api.html#matplotlib.axes.Axes" title="matplotlib.axes.Axes"><code class="xref py py-class docutils literal notranslate"><span class="pre">Axes</span></code></a> the event occurs is
over, and additionally, the variables <code class="docutils literal notranslate"><span class="pre">event.xdata</span></code> and
<code class="docutils literal notranslate"><span class="pre">event.ydata</span></code> will be defined. This is the mouse location
in data coords. See
<a class="reference internal" href="#matplotlib.backend_bases.KeyEvent" title="matplotlib.backend_bases.KeyEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">KeyEvent</span></code></a> and
<a class="reference internal" href="#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">MouseEvent</span></code></a> for more info.</p>
<p>Return value is a connection id that can be used with
<code class="xref py py-meth docutils literal notranslate"><span class="pre">mpl_disconnect()</span></code>.</p>
<p class="rubric">Examples</p>
<p>Usage:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">on_press</span><span class="p">(</span><span class="n">event</span><span class="p">):</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'you pressed'</span><span class="p">,</span> <span class="n">event</span><span class="o">.</span><span class="n">button</span><span class="p">,</span> <span class="n">event</span><span class="o">.</span><span class="n">xdata</span><span class="p">,</span> <span class="n">event</span><span class="o">.</span><span class="n">ydata</span><span class="p">)</span>
<span class="n">cid</span> <span class="o">=</span> <span class="n">canvas</span><span class="o">.</span><span class="n">mpl_connect</span><span class="p">(</span><span class="s1">'button_press_event'</span><span class="p">,</span> <span class="n">on_press</span><span class="p">)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.mpl_disconnect">
<code class="descname">mpl_disconnect</code><span class="sig-paren">(</span><em>self</em>, <em>cid</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.mpl_disconnect"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.mpl_disconnect" title="Permalink to this definition">¶</a></dt>
<dd><p>Disconnect callback id cid</p>
<p class="rubric">Examples</p>
<p>Usage:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">cid</span> <span class="o">=</span> <span class="n">canvas</span><span class="o">.</span><span class="n">mpl_connect</span><span class="p">(</span><span class="s1">'button_press_event'</span><span class="p">,</span> <span class="n">on_press</span><span class="p">)</span>
<span class="c1">#...later</span>
<span class="n">canvas</span><span class="o">.</span><span class="n">mpl_disconnect</span><span class="p">(</span><span class="n">cid</span><span class="p">)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.new_timer">
<code class="descname">new_timer</code><span class="sig-paren">(</span><em>self</em>, <em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.new_timer"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.new_timer" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates a new backend-specific subclass of
<code class="xref py py-class docutils literal notranslate"><span class="pre">backend_bases.Timer</span></code>. This is useful for getting periodic
events through the backend's native event loop. Implemented only for
backends with GUIs.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Other Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>interval</strong> <span class="classifier-delimiter">:</span> <span class="classifier">scalar</span></dt>
<dd><p class="first last">Timer interval in milliseconds</p>
</dd>
<dt><strong>callbacks</strong> <span class="classifier-delimiter">:</span> <span class="classifier">List[Tuple[callable, Tuple, Dict]]</span></dt>
<dd><p class="first">Sequence of (func, args, kwargs) where <code class="docutils literal notranslate"><span class="pre">func(*args,</span> <span class="pre">**kwargs)</span></code>
will be executed by the timer every <em>interval</em>.</p>
<p class="last">callbacks which return <code class="docutils literal notranslate"><span class="pre">False</span></code> or <code class="docutils literal notranslate"><span class="pre">0</span></code> will be removed from the
timer.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">timer</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">new_timer</span><span class="p">(</span><span class="n">callbacks</span><span class="o">=</span><span class="p">[(</span><span class="n">f1</span><span class="p">,</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="p">),</span> <span class="p">{</span><span class="s1">'a'</span><span class="p">:</span> <span class="mi">3</span><span class="p">}),])</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.pick">
<code class="descname">pick</code><span class="sig-paren">(</span><em>self</em>, <em>mouseevent</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.pick"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.pick" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.pick_event">
<code class="descname">pick_event</code><span class="sig-paren">(</span><em>self</em>, <em>mouseevent</em>, <em>artist</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.pick_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.pick_event" title="Permalink to this definition">¶</a></dt>
<dd><p>This method will be called by artists who are picked and will
fire off <a class="reference internal" href="#matplotlib.backend_bases.PickEvent" title="matplotlib.backend_bases.PickEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">PickEvent</span></code></a> callbacks registered listeners</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.print_figure">
<code class="descname">print_figure</code><span class="sig-paren">(</span><em>self</em>, <em>filename</em>, <em>dpi=None</em>, <em>facecolor=None</em>, <em>edgecolor=None</em>, <em>orientation='portrait'</em>, <em>format=None</em>, <em>*</em>, <em>bbox_inches=None</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.print_figure"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.print_figure" title="Permalink to this definition">¶</a></dt>
<dd><p>Render the figure to hardcopy. Set the figure patch face and edge
colors. This is useful because some of the GUIs have a gray figure
face color background and you'll probably want to override this on
hardcopy.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>filename</strong></dt>
<dd><p class="first last">can also be a file object on image backends</p>
</dd>
<dt><strong>orientation</strong> <span class="classifier-delimiter">:</span> <span class="classifier">{'landscape', 'portrait'}, optional</span></dt>
<dd><p class="first last">only currently applies to PostScript printing.</p>
</dd>
<dt><strong>dpi</strong> <span class="classifier-delimiter">:</span> <span class="classifier">scalar, optional</span></dt>
<dd><p class="first last">the dots per inch to save the figure in; if None, use savefig.dpi</p>
</dd>
<dt><strong>facecolor</strong> <span class="classifier-delimiter">:</span> <span class="classifier">color or None, optional</span></dt>
<dd><p class="first last">the facecolor of the figure; if None, defaults to savefig.facecolor</p>
</dd>
<dt><strong>edgecolor</strong> <span class="classifier-delimiter">:</span> <span class="classifier">color or None, optional</span></dt>
<dd><p class="first last">the edgecolor of the figure; if None, defaults to savefig.edgecolor</p>
</dd>
<dt><strong>format</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str, optional</span></dt>
<dd><p class="first last">when set, forcibly set the file format to save to</p>
</dd>
<dt><strong>bbox_inches</strong> <span class="classifier-delimiter">:</span> <span class="classifier">str or <a class="reference internal" href="transformations.html#matplotlib.transforms.Bbox" title="matplotlib.transforms.Bbox"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Bbox</span></code></a>, optional</span></dt>
<dd><p class="first last">Bbox in inches. Only the given portion of the figure is
saved. If 'tight', try to figure out the tight bbox of
the figure. If None, use savefig.bbox</p>
</dd>
<dt><strong>pad_inches</strong> <span class="classifier-delimiter">:</span> <span class="classifier">scalar, optional</span></dt>
<dd><p class="first last">Amount of padding around the figure when bbox_inches is
'tight'. If None, use savefig.pad_inches</p>
</dd>
<dt><strong>bbox_extra_artists</strong> <span class="classifier-delimiter">:</span> <span class="classifier">list of <a class="reference internal" href="artist_api.html#matplotlib.artist.Artist" title="matplotlib.artist.Artist"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Artist</span></code></a>, optional</span></dt>
<dd><p class="first last">A list of extra artists that will be considered when the
tight bbox is calculated.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.release_mouse">
<code class="descname">release_mouse</code><span class="sig-paren">(</span><em>self</em>, <em>ax</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.release_mouse"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.release_mouse" title="Permalink to this definition">¶</a></dt>
<dd><p>Release the mouse grab held by the axes, ax.
Usually called by the widgets.
It is ok to call this even if you ax doesn't have the mouse
grab currently.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.resize">
<code class="descname">resize</code><span class="sig-paren">(</span><em>self</em>, <em>w</em>, <em>h</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.resize"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.resize" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the canvas size in pixels.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.resize_event">
<code class="descname">resize_event</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.resize_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.resize_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Pass a <a class="reference internal" href="#matplotlib.backend_bases.ResizeEvent" title="matplotlib.backend_bases.ResizeEvent"><code class="xref py py-obj docutils literal notranslate"><span class="pre">ResizeEvent</span></code></a> to all functions connected to <code class="docutils literal notranslate"><span class="pre">resize_event</span></code>.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.scroll_event">
<code class="descname">scroll_event</code><span class="sig-paren">(</span><em>self</em>, <em>x</em>, <em>y</em>, <em>step</em>, <em>guiEvent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.scroll_event"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.scroll_event" title="Permalink to this definition">¶</a></dt>
<dd><p>Backend derived classes should call this function on any
scroll wheel event. x,y are the canvas coords: 0,0 is lower,
left. button and key are as defined in MouseEvent.</p>
<p>This method will be call all functions connected to the
'scroll_event' with a <a class="reference internal" href="#matplotlib.backend_bases.MouseEvent" title="matplotlib.backend_bases.MouseEvent"><code class="xref py py-class docutils literal notranslate"><span class="pre">MouseEvent</span></code></a> instance.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.set_window_title">
<code class="descname">set_window_title</code><span class="sig-paren">(</span><em>self</em>, <em>title</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.set_window_title"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.set_window_title" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the title text of the window containing the figure. Note that
this has no effect if there is no window (e.g., a PS backend).</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.start_event_loop">
<code class="descname">start_event_loop</code><span class="sig-paren">(</span><em>self</em>, <em>timeout=0</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.start_event_loop"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.start_event_loop" title="Permalink to this definition">¶</a></dt>
<dd><p>Start a blocking event loop.</p>
<p>Such an event loop is used by interactive functions, such as <code class="xref py py-obj docutils literal notranslate"><span class="pre">ginput</span></code>
and <code class="xref py py-obj docutils literal notranslate"><span class="pre">waitforbuttonpress</span></code>, to wait for events.</p>
<p>The event loop blocks until a callback function triggers
<a class="reference internal" href="#matplotlib.backend_bases.FigureCanvasBase.stop_event_loop" title="matplotlib.backend_bases.FigureCanvasBase.stop_event_loop"><code class="xref py py-obj docutils literal notranslate"><span class="pre">stop_event_loop</span></code></a>, or <em>timeout</em> is reached.</p>
<p>If <em>timeout</em> is negative, never timeout.</p>
<p>Only interactive backends need to reimplement this method and it relies
on <a class="reference internal" href="#matplotlib.backend_bases.FigureCanvasBase.flush_events" title="matplotlib.backend_bases.FigureCanvasBase.flush_events"><code class="xref py py-obj docutils literal notranslate"><span class="pre">flush_events</span></code></a> being properly implemented.</p>
<p>Interactive backends should implement this in a more native way.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.stop_event_loop">
<code class="descname">stop_event_loop</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.stop_event_loop"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.stop_event_loop" title="Permalink to this definition">¶</a></dt>
<dd><p>Stop the current blocking event loop.</p>
<p>Interactive backends need to reimplement this to match
<a class="reference internal" href="#matplotlib.backend_bases.FigureCanvasBase.start_event_loop" title="matplotlib.backend_bases.FigureCanvasBase.start_event_loop"><code class="xref py py-obj docutils literal notranslate"><span class="pre">start_event_loop</span></code></a></p>
</dd></dl>
<dl class="attribute">
<dt id="matplotlib.backend_bases.FigureCanvasBase.supports_blit">
<code class="descname">supports_blit</code><em class="property"> = True</em><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.supports_blit" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureCanvasBase.switch_backends">
<code class="descname">switch_backends</code><span class="sig-paren">(</span><em>self</em>, <em>FigureCanvasClass</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureCanvasBase.switch_backends"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureCanvasBase.switch_backends" title="Permalink to this definition">¶</a></dt>
<dd><p>Instantiate an instance of FigureCanvasClass</p>
<p>This is used for backend switching, e.g., to instantiate a
FigureCanvasPS from a FigureCanvasGTK. Note, deep copying is
not done, so any changes to one of the instances (e.g., setting
figure size or line props), will be reflected in the other</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.backend_bases.FigureManagerBase">
<em class="property">class </em><code class="descclassname">matplotlib.backend_bases.</code><code class="descname">FigureManagerBase</code><span class="sig-paren">(</span><em>canvas</em>, <em>num</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.8)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>Helper class for pyplot mode, wraps everything up into a neat bundle</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Attributes:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>canvas</strong> <span class="classifier-delimiter">:</span> <span class="classifier"><a class="reference internal" href="#matplotlib.backend_bases.FigureCanvasBase" title="matplotlib.backend_bases.FigureCanvasBase"><code class="xref py py-class docutils literal notranslate"><span class="pre">FigureCanvasBase</span></code></a></span></dt>
<dd><p class="first last">The backend-specific canvas instance</p>
</dd>
<dt><strong>num</strong> <span class="classifier-delimiter">:</span> <span class="classifier">int or str</span></dt>
<dd><p class="first last">The figure number</p>
</dd>
<dt><strong>key_press_handler_id</strong> <span class="classifier-delimiter">:</span> <span class="classifier">int</span></dt>
<dd><p class="first">The default key handler cid, when using the toolmanager.
To disable the default key press handling use:</p>
<div class="last highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">figure</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">mpl_disconnect</span><span class="p">(</span>
<span class="n">figure</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">manager</span><span class="o">.</span><span class="n">key_press_handler_id</span><span class="p">)</span>
</pre></div>
</div>
</dd>
<dt><strong>button_press_handler_id</strong> <span class="classifier-delimiter">:</span> <span class="classifier">int</span></dt>
<dd><p class="first">The default mouse button handler cid, when using the toolmanager.
To disable the default button press handling use:</p>
<div class="last highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">figure</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">mpl_disconnect</span><span class="p">(</span>
<span class="n">figure</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">manager</span><span class="o">.</span><span class="n">button_press_handler_id</span><span class="p">)</span>
</pre></div>
</div>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureManagerBase.button_press">
<code class="descname">button_press</code><span class="sig-paren">(</span><em>self</em>, <em>event</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase.button_press"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase.button_press" title="Permalink to this definition">¶</a></dt>
<dd><p>The default Matplotlib button actions for extra mouse buttons.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureManagerBase.destroy">
<code class="descname">destroy</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase.destroy"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase.destroy" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureManagerBase.full_screen_toggle">
<code class="descname">full_screen_toggle</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase.full_screen_toggle"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase.full_screen_toggle" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureManagerBase.get_window_title">
<code class="descname">get_window_title</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase.get_window_title"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase.get_window_title" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the title text of the window containing the figure.</p>
<p>Return None for non-GUI (e.g., PS) backends.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureManagerBase.key_press">
<code class="descname">key_press</code><span class="sig-paren">(</span><em>self</em>, <em>event</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase.key_press"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase.key_press" title="Permalink to this definition">¶</a></dt>
<dd><p>Implement the default mpl key bindings defined at
<a class="reference internal" href="../users/navigation_toolbar.html#key-event-handling"><span class="std std-ref">Navigation Keyboard Shortcuts</span></a></p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureManagerBase.resize">
<code class="descname">resize</code><span class="sig-paren">(</span><em>self</em>, <em>w</em>, <em>h</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase.resize"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase.resize" title="Permalink to this definition">¶</a></dt>
<dd><p>"For GUI backends, resize the window (in pixels).</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureManagerBase.set_window_title">
<code class="descname">set_window_title</code><span class="sig-paren">(</span><em>self</em>, <em>title</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase.set_window_title"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase.set_window_title" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the title text of the window containing the figure.</p>
<p>This has no effect for non-GUI (e.g., PS) backends.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.FigureManagerBase.show">
<code class="descname">show</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#FigureManagerBase.show"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.FigureManagerBase.show" title="Permalink to this definition">¶</a></dt>
<dd><p>For GUI backends, show the figure window and redraw.
For non-GUI backends, raise an exception to be caught
by <a class="reference internal" href="_as_gen/matplotlib.figure.Figure.html#matplotlib.figure.Figure.show" title="matplotlib.figure.Figure.show"><code class="xref py py-meth docutils literal notranslate"><span class="pre">show()</span></code></a>, for an
optional warning.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="matplotlib.backend_bases.GraphicsContextBase">
<em class="property">class </em><code class="descclassname">matplotlib.backend_bases.</code><code class="descname">GraphicsContextBase</code><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.8)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p>
<p>An abstract base class that provides color, line styles, etc.</p>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.copy_properties">
<code class="descname">copy_properties</code><span class="sig-paren">(</span><em>self</em>, <em>gc</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.copy_properties"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.copy_properties" title="Permalink to this definition">¶</a></dt>
<dd><p>Copy properties from gc to self</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_alpha">
<code class="descname">get_alpha</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_alpha"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_alpha" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the alpha value used for blending - not supported on
all backends.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_antialiased">
<code class="descname">get_antialiased</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_antialiased"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_antialiased" title="Permalink to this definition">¶</a></dt>
<dd><p>Return whether the object should try to do antialiased rendering.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_capstyle">
<code class="descname">get_capstyle</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_capstyle"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_capstyle" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the capstyle as a string in ('butt', 'round', 'projecting').</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_clip_path">
<code class="descname">get_clip_path</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_clip_path"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_clip_path" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the clip path in the form (path, transform), where path
is a <a class="reference internal" href="path_api.html#matplotlib.path.Path" title="matplotlib.path.Path"><code class="xref py py-class docutils literal notranslate"><span class="pre">Path</span></code></a> instance, and transform is
an affine transform to apply to the path before clipping.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_clip_rectangle">
<code class="descname">get_clip_rectangle</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_clip_rectangle"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_clip_rectangle" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the clip rectangle as a <a class="reference internal" href="transformations.html#matplotlib.transforms.Bbox" title="matplotlib.transforms.Bbox"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Bbox</span></code></a> instance.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_dashes">
<code class="descname">get_dashes</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_dashes"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_dashes" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the dash information as an offset dashlist tuple.</p>
<p>The dash list is a even size list that gives the ink on, ink
off in pixels.</p>
<p>See p107 of to PostScript <a class="reference external" href="https://www-cdf.fnal.gov/offline/PostScript/BLUEBOOK.PDF">BLUEBOOK</a>
for more info.</p>
<p>Default value is None</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_forced_alpha">
<code class="descname">get_forced_alpha</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_forced_alpha"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_forced_alpha" title="Permalink to this definition">¶</a></dt>
<dd><p>Return whether the value given by get_alpha() should be used to
override any other alpha-channel values.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_gid">
<code class="descname">get_gid</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_gid"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_gid" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the object identifier if one is set, None otherwise.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_hatch">
<code class="descname">get_hatch</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_hatch"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_hatch" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the current hatch style.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_hatch_color">
<code class="descname">get_hatch_color</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_hatch_color"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_hatch_color" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the hatch color.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_hatch_linewidth">
<code class="descname">get_hatch_linewidth</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_hatch_linewidth"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_hatch_linewidth" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the hatch linewidth.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_hatch_path">
<code class="descname">get_hatch_path</code><span class="sig-paren">(</span><em>self</em>, <em>density=6.0</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_hatch_path"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_hatch_path" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a <code class="xref py py-obj docutils literal notranslate"><span class="pre">Path</span></code> for the current hatch.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_joinstyle">
<code class="descname">get_joinstyle</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_joinstyle"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_joinstyle" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the line join style as one of ('miter', 'round', 'bevel').</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_linewidth">
<code class="descname">get_linewidth</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_linewidth"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_linewidth" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the line width in points.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_rgb">
<code class="descname">get_rgb</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_rgb"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_rgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a tuple of three or four floats from 0-1.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_sketch_params">
<code class="descname">get_sketch_params</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_sketch_params"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_sketch_params" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the sketch parameters for the artist.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><dl class="first last docutils">
<dt><strong>sketch_params</strong> <span class="classifier-delimiter">:</span> <span class="classifier">tuple or <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.8)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">None</span></code></a></span></dt>
<dd><p class="first">A 3-tuple with the following elements:</p>
<ul class="simple">
<li><code class="xref py py-obj docutils literal notranslate"><span class="pre">scale</span></code>: The amplitude of the wiggle perpendicular to the
source line.</li>
<li><code class="xref py py-obj docutils literal notranslate"><span class="pre">length</span></code>: The length of the wiggle along the line.</li>
<li><code class="xref py py-obj docutils literal notranslate"><span class="pre">randomness</span></code>: The scale factor by which the length is
shrunken or expanded.</li>
</ul>
<p class="last">May return <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.8)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">None</span></code></a> if no sketch parameters were set.</p>
</dd>
</dl>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_snap">
<code class="descname">get_snap</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_snap"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_snap" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns the snap setting, which can be:</p>
<ul class="simple">
<li>True: snap vertices to the nearest pixel center</li>
<li>False: leave vertices as-is</li>
<li>None: (auto) If the path contains only rectilinear line segments,
round to the nearest pixel center</li>
</ul>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.get_url">
<code class="descname">get_url</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.get_url"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.get_url" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a url if one is set, None otherwise.</p>
</dd></dl>
<dl class="method">
<dt id="matplotlib.backend_bases.GraphicsContextBase.restore">
<code class="descname">restore</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/matplotlib/backend_bases.html#GraphicsContextBase.restore"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#matplotlib.backend_bases.GraphicsContextBase.restore" title="Permalink to this definition">¶</a></dt>
<dd><p>Restore the graphics context from the stack - needed only
for backends that save graphics contexts on a stack.</p>