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r"""
================
Nested GridSpecs
================
This example demonstrates the use of nested `.GridSpec`\s.
"""
import matplotlib.pyplot as plt
import numpy as np
def squiggle_xy(a, b, c, d):
i = np.arange(0.0, 2*np.pi, 0.05)
return np.sin(i*a)*np.cos(i*b), np.sin(i*c)*np.cos(i*d)
fig = plt.figure(figsize=(8, 8))
outer_grid = fig.add_gridspec(4, 4, wspace=0, hspace=0)
for a in range(4):
for b in range(4):
# gridspec inside gridspec
inner_grid = outer_grid[a, b].subgridspec(3, 3, wspace=0, hspace=0)
axs = inner_grid.subplots() # Create all subplots for the inner grid.
for (c, d), ax in np.ndenumerate(axs):
ax.plot(*squiggle_xy(a + 1, b + 1, c + 1, d + 1))
ax.set(xticks=[], yticks=[])
# show only the outside spines
for ax in fig.get_axes():
ss = ax.get_subplotspec()
ax.spines.top.set_visible(ss.is_first_row())
ax.spines.bottom.set_visible(ss.is_last_row())
ax.spines.left.set_visible(ss.is_first_col())
ax.spines.right.set_visible(ss.is_last_col())
plt.show()
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