matplotview.inset_zoom_axes() can be utilized to create inset axes where we don’t have to plot the parent axes data twice.
9 from matplotlib import cbook
10 import matplotlib.pyplot as plt
11 import numpy as np
12 from matplotview import inset_zoom_axes
13
14 def get_demo_image():
15 z = cbook.get_sample_data("axes_grid/bivariate_normal.npy", np_load=True)
16 # z is a numpy array of 15x15
17 return z, (-3, 4, -4, 3)
18
19 fig, ax = plt.subplots()
20
21 # Make the data...
22 Z, extent = get_demo_image()
23 Z2 = np.zeros((150, 150))
24 ny, nx = Z.shape
25 Z2[30:30+ny, 30:30+nx] = Z
26
27 ax.imshow(Z2, extent=extent, interpolation='nearest', origin="lower")
28
29 # Creates an inset axes with automatic view of the parent axes...
30 axins = inset_zoom_axes(ax, [0.5, 0.5, 0.47, 0.47])
31 # Set limits to sub region of the original image
32 x1, x2, y1, y2 = -1.5, -0.9, -2.5, -1.9
33 axins.set_xlim(x1, x2)
34 axins.set_ylim(y1, y2)
35
36 # Remove the tick labels from the inset axes
37 axins.set_xticklabels([])
38 axins.set_yticklabels([])
39
40 # Draw the indicator or zoom lines.
41 ax.indicate_inset_zoom(axins, edgecolor="black")
42
43 fig.show()
Total running time of the script: (0 minutes 0.190 seconds)
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