matplotlib/examples/fill_between.py at transforms · tecki/matplotlib · GitHub

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#!/usr/bin/env python

import matplotlib.mlab as mlab

from pylab import figure, show

import numpy as npy

x = npy.arange(0, 2, 0.01)

y1 = npy.sin(2*npy.pi*x)

y2 = npy.sin(4*npy.pi*x) + 2

fig = figure()

ax = fig.add_subplot(311)

ax2 = fig.add_subplot(312)

ax3 = fig.add_subplot(313)

xs, ys = mlab.poly_between(x, 0, y1)

ax.fill(xs, ys)

ax.set_ylabel('between y1 and 0')

xs, ys = mlab.poly_between(x, y1, 1)

ax2.fill(xs, ys)

ax2.set_ylabel('between y1 and 1')

xs, ys = mlab.poly_between(x, y1, y2)

ax3.fill(xs, ys)

ax3.set_ylabel('between y1 and y2')

ax3.set_xlabel('x')

show()