Hatch demo

Hatches can be added to most polygons in Matplotlib, including ~.Axes.bar, ~.Axes.fill_between, ~.Axes.contourf, and children of ~.patches.Polygon. They are currently supported in the PS, PDF, SVG, macosx, and Agg backends. The WX and Cairo backends do not currently support hatching.

See also :doc:/gallery/images_contours_and_fields/contourf_hatching for an example using ~.Axes.contourf, and :doc:/gallery/shapes_and_collections/hatch_style_reference for swatches of the existing hatches.

import matplotlib.pyplot as plt
import numpy as np

from matplotlib.patches import Ellipse, Polygon

x = np.arange(1, 5)
y1 = np.arange(1, 5)
y2 = np.ones(y1.shape) * 4

fig = plt.figure()
axs = fig.subplot_mosaic([['bar1', 'patches'], ['bar2', 'patches']])

axs['bar1'].bar(x, y1, edgecolor='black', hatch="/")
axs['bar1'].bar(x, y2, bottom=y1, edgecolor='black', hatch='//')

axs['bar2'].bar(x, y1, edgecolor='black', hatch=['--', '+', 'x', '\\'])
axs['bar2'].bar(x, y2, bottom=y1, edgecolor='black',
                hatch=['*', 'o', 'O', '.'])

x = np.arange(0, 40, 0.2)
axs['patches'].fill_between(x, np.sin(x) * 4 + 30, y2=0,
                            hatch='///', zorder=2, fc='c')
axs['patches'].add_patch(Ellipse((4, 50), 10, 10, fill=True,
                                 hatch='*', facecolor='y'))
axs['patches'].add_patch(Polygon([(10, 20), (30, 50), (50, 10)],
                                 hatch='\\/...', facecolor='g'))
axs['patches'].set_xlim([0, 40])
axs['patches'].set_ylim([10, 60])
axs['patches'].set_aspect(1)
plt.show()

… admonition:: References

The use of the following functions, methods, classes and modules is shown in this example:

• matplotlib.patches

• matplotlib.patches.Ellipse

• matplotlib.patches.Polygon

• matplotlib.axes.Axes.add_patch

• matplotlib.patches.Patch.set_hatch

• matplotlib.axes.Axes.bar / matplotlib.pyplot.bar