.. _pylab_examples-contourf_hatching: pylab_examples example code: contourf_hatching.py ================================================= .. plot:: /home/mdboom/Work/builds/matplotlib/doc/mpl_examples/pylab_examples/contourf_hatching.py :: import matplotlib.pyplot as plt import numpy as np # invent some numbers, turning the x and y arrays into simple # 2d arrays, which make combining them together easier. x = np.linspace(-3, 5, 150).reshape(1, -1) y = np.linspace(-3, 5, 120).reshape(-1, 1) z = np.cos(x) + np.sin(y) # we no longer need x and y to be 2 dimensional, so flatten them. x, y = x.flatten(), y.flatten() # --------------------------------------------- # | Plot #1 | # --------------------------------------------- # the simplest hatched plot with a colorbar fig = plt.figure() cs = plt.contourf(x, y, z, hatches=['-', '/', '\\', '//'], cmap=plt.get_cmap('gray'), extend='both', alpha=0.5 ) plt.colorbar() # --------------------------------------------- # | Plot #2 | # --------------------------------------------- # a plot of hatches without color with a legend plt.figure() n_levels = 6 plt.contour(x, y, z, n_levels, colors='black', linestyles='-') cs = plt.contourf(x, y, z, n_levels, colors='none', hatches=['.', '/', '\\', None, '\\\\', '*'], extend='lower' ) # create a legend for the contour set artists, labels = cs.legend_elements() plt.legend(artists, labels, handleheight=2) plt.show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)