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I am trying to create a contour plot with the contours filled with hatches and no color. The following example works if I save it to .png but when I save it to .pdf the output is just the axis.
import numpy as np
import matplotlib.pyplot as plt
delta = 0.025
x = y = np.arange(-3.0, 3.01, delta)
X, Y = np.meshgrid(x, y)
Z1 = plt.mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0)
Z2 = plt.mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1)
Z = 10 * (Z1 - Z2)
levels=[0,1]
plt.contourf(X, Y, Z/X,
levels,
#alpha=0.5,
colors='none', label='AGH',
hatches=['\\'])
plt.tight_layout()
plt.savefig('GitHub.pdf')
plt.show()I am using Matplotlib2.00 in Linux, installed from source.
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