#!/usr/bin/env python # -*- coding: utf-8 -*- import numpy from matplotlib import mlab from matplotlib import pyplot def main(): # Part of the example at # http://matplotlib.sourceforge.net/plot_directive/mpl_examples/pylab_examples/contour_demo.py delta = 0.025 x = numpy.arange(-3.0, 3.0, delta) y = numpy.arange(-2.0, 2.0, delta) X, Y = numpy.meshgrid(x, y) Z1 = mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0) Z2 = mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1) Z = 10.0 * (Z2 - Z1) pyplot.figure() CS = pyplot.contour(X, Y, Z) pyplot.show() if __name__ == "__main__": main()