.. _mplot3d-wire3d_animation_demo:

mplot3d example code: wire3d_animation_demo.py
==============================================



.. plot:: /home/tcaswell/source/my_source/matplotlib/doc/mpl_examples/mplot3d/wire3d_animation_demo.py

::

    from __future__ import print_function
    """
    A very simple 'animation' of a 3D plot
    """
    from mpl_toolkits.mplot3d import axes3d
    import matplotlib.pyplot as plt
    import numpy as np
    import time
    
    
    def generate(X, Y, phi):
        R = 1 - np.sqrt(X**2 + Y**2)
        return np.cos(2 * np.pi * X + phi) * R
    
    fig = plt.figure()
    ax = fig.add_subplot(111, projection='3d')
    
    xs = np.linspace(-1, 1, 50)
    ys = np.linspace(-1, 1, 50)
    X, Y = np.meshgrid(xs, ys)
    Z = generate(X, Y, 0.0)
    
    wframe = None
    tstart = time.time()
    for phi in np.linspace(0, 360 / 2 / np.pi, 100):
    
        oldcol = wframe
    
        Z = generate(X, Y, phi)
        wframe = ax.plot_wireframe(X, Y, Z, rstride=2, cstride=2)
    
        # Remove old line collection before drawing
        if oldcol is not None:
            ax.collections.remove(oldcol)
    
        plt.pause(.001)
    
    print('FPS: %f' % (100 / (time.time() - tstart)))
    

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