11"""
2- =======================
3- Simple Anchored Artists
4- =======================
5-
2+ ================
3+ Anchored Artists
4+ ================
65"""
6+
77import matplotlib .pyplot as plt
88
99
1010def draw_text (ax ):
11+ """
12+ Draw two text-boxes, anchored by different corners to the upper-left
13+ side of the figure.
14+ """
1115 from matplotlib .offsetbox import AnchoredText
16+ # loc=2 is equivalent to loc='upper left'
1217 at = AnchoredText ("Figure 1a" ,
1318 loc = 2 , prop = dict (size = 8 ), frameon = True ,
1419 )
1520 at .patch .set_boxstyle ("round,pad=0.,rounding_size=0.2" )
1621 ax .add_artist (at )
1722
23+ # loc=3 is eqivalent to loc='lower left'
1824 at2 = AnchoredText ("Figure 1(b)" ,
1925 loc = 3 , prop = dict (size = 8 ), frameon = True ,
2026 bbox_to_anchor = (0. , 1. ),
@@ -24,7 +30,10 @@ def draw_text(ax):
2430 ax .add_artist (at2 )
2531
2632
27- def draw_circle (ax ): # circle in the canvas coordinate
33+ def draw_circle (ax ):
34+ """
35+ Draw a circle in axis coordinates
36+ """
2837 from mpl_toolkits .axes_grid1 .anchored_artists import AnchoredDrawingArea
2938 from matplotlib .patches import Circle
3039 ada = AnchoredDrawingArea (20 , 20 , 0 , 0 ,
@@ -35,18 +44,22 @@ def draw_circle(ax): # circle in the canvas coordinate
3544
3645
3746def draw_ellipse (ax ):
47+ """
48+ Draw an ellipse of width=0.1, height=0.15 in data coordinates
49+ """
3850 from mpl_toolkits .axes_grid1 .anchored_artists import AnchoredEllipse
39- # draw an ellipse of width=0.1, height=0.15 in the data coordinate
4051 ae = AnchoredEllipse (ax .transData , width = 0.1 , height = 0.15 , angle = 0. ,
4152 loc = 3 , pad = 0.5 , borderpad = 0.4 , frameon = True )
4253
4354 ax .add_artist (ae )
4455
4556
4657def draw_sizebar (ax ):
58+ """
59+ Draw a horizontal bar with length of 0.1 in data coordinates,
60+ with a fixed label underneath.
61+ """
4762 from mpl_toolkits .axes_grid1 .anchored_artists import AnchoredSizeBar
48- # draw a horizontal bar with length of 0.1 in Data coordinate
49- # (ax.transData) with a label underneath.
5063 asb = AnchoredSizeBar (ax .transData ,
5164 0.1 ,
5265 r"1$^{\prime}$" ,
@@ -56,13 +69,12 @@ def draw_sizebar(ax):
5669 ax .add_artist (asb )
5770
5871
59- if 1 :
60- ax = plt .gca ()
61- ax .set_aspect (1. )
72+ ax = plt .gca ()
73+ ax .set_aspect (1. )
6274
63- draw_text (ax )
64- draw_circle (ax )
65- draw_ellipse (ax )
66- draw_sizebar (ax )
75+ draw_text (ax )
76+ draw_circle (ax )
77+ draw_ellipse (ax )
78+ draw_sizebar (ax )
6779
68- plt .show ()
80+ plt .show ()
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