@@ -64,21 +64,28 @@ def annotate_rect(ax):
6464# one you use depends on the shape of the image and the size of the figure.
6565# We can control the relative sizes using the *width_ratios* argument *if* the images
6666# are wider than they are tall and shown side by side, as is the case here.
67+ #
68+ # While we are making changes, let us also make the aspect ratio of the figure closer
69+ # to the aspect ratio of the axes using *figsize* so that the figure does not have so
70+ # much white space.
71+
72+ figsize = (6.4 ,2 )# approximate figsize that trims some of the white space.
6773
68- fig ,axs = plt .subplots (1 ,2 ,width_ratios = [300 / 200 ,1 ],facecolor = 'aliceblue' )
74+ fig ,axs = plt .subplots (1 ,2 ,width_ratios = [300 / 200 ,1 ],
75+ figsize = figsize ,facecolor = 'aliceblue' )
6976
7077axs [0 ].imshow (A ,vmin = - 1 ,vmax = 1 )
7178annotate_rect (axs [0 ])
7279
7380axs [1 ].imshow (B ,vmin = - 1 ,vmax = 1 )
74-
7581# %%
7682# Given that the data subsample is in the upper left of the larger image,
7783# it might make sense if the top of the smaller Axes aligned with the top of the larger.
7884# This can be done manually by using `~.Axes.set_anchor`, and using "NW" (for
7985# northwest).
8086
81- fig ,axs = plt .subplots (1 ,2 ,width_ratios = [300 / 200 ,1 ],facecolor = 'aliceblue' )
87+ fig ,axs = plt .subplots (1 ,2 ,width_ratios = [300 / 200 ,1 ],
88+ figsize = figsize ,facecolor = 'aliceblue' )
8289
8390axs [0 ].imshow (A ,vmin = - 1 ,vmax = 1 )
8491annotate_rect (axs [0 ])
@@ -88,21 +95,22 @@ def annotate_rect(ax):
8895axs [1 ].set_anchor ('NW' )
8996
9097# %%
91- # Note that this procedure still leaves large white spaces (that can be trimmed
92- # in a final product by ``bbox_inches="tight"`` in `~.Figure.savefig`), and is
93- # not very general. For instance, if the axes had been arranged vertically
94- # instead of horizontally, setting the height aspect ratio would not have
95- # helped because the axes are wider than they are tall. For more complicated
96- # situations it is necessary to place the axes manually.
98+ # For more complicated situations it may be necessary to place the axes
99+ # manually. In the example above, even approximating figure aspect ratio, there
100+ # are still blank spaces (that can be trimmed in a final product by
101+ # ``bbox_inches="tight"`` in `~.Figure.savefig`). The procedure is also not
102+ # very general. For instance, if the axes had been arranged vertically instead
103+ # of horizontally, setting the height aspect ratio would not have helped
104+ # because the axes are wider than they are tall.
97105#
98106# Manual placement
99107# ================
100108#
101109# We can manually place axes when they are created by passing a position to
102- # `~.Figure.add_axes`. This position takes the form ``[left bottom width height]`` and
103- # is in units that are a fraction of the figure width and height. Here we decide how
104- # large to make the axes based on the size of the images, and add a small buffer of
105- # 0.35 inches. We do all this at 100 dpi.
110+ # `~.Figure.add_axes`. This position takes the form ``[left bottom width
111+ #height]`` and is in units that are a fraction of the figure width and height.
112+ #Here we decide how large to make the axes based on the size of the images,
113+ #and add a small buffer of 0.35 inches. We do all this at 100 dpi.
106114
107115dpi = 100 # 100 pixels is one inch
108116
@@ -140,7 +148,7 @@ def annotate_rect(ax):
140148ax = fig .add_axes ([posB [0 ]/ fig_width ,posB [1 ]/ fig_height ,
141149posB [2 ]/ fig_width ,posB [3 ]/ fig_height ])
142150ax .imshow (B ,vmin = - 1 ,vmax = 1 )
143-
151+ plt . show ()
144152# %%
145153# Inspection of the image will show that it is exactly 3* 35 + 300 + 200 = 605
146154# pixels wide, and 2 * 35 + 100 = 170 pixels high (or twice that if the 2x