.. _pylab_examples-fill_spiral:

pylab_examples example code: fill_spiral.py
===========================================



.. plot:: /home/travis/build/jenshnielsen/matplotlib/doc/mpl_examples/pylab_examples/fill_spiral.py

::

    #!/usr/bin/env python
    
    from pylab import *
    
    theta = arange(0, 8*pi, 0.1)
    a = 1
    b = .2
    
    for dt in arange(0, 2*pi, pi/2.0):
    
        x = a*cos(theta + dt)*exp(b*theta)
        y = a*sin(theta + dt)*exp(b*theta)
    
        dt = dt + pi/4.0
    
        x2 = a*cos(theta + dt)*exp(b*theta)
        y2 = a*sin(theta + dt)*exp(b*theta)
    
        xf = concatenate((x, x2[::-1]))
        yf = concatenate((y, y2[::-1]))
    
        p1 = fill(xf, yf)
    
    show()
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)