.. _mplot3d-lines3d_demo:

mplot3d example code: lines3d_demo.py
=====================================



.. plot:: /builddir/build/BUILD/matplotlib-1.2.0/doc/mpl_examples/mplot3d/lines3d_demo.py

::

    import matplotlib as mpl
    from mpl_toolkits.mplot3d import Axes3D
    import numpy as np
    import matplotlib.pyplot as plt
    
    mpl.rcParams['legend.fontsize'] = 10
    
    fig = plt.figure()
    ax = fig.gca(projection='3d')
    theta = np.linspace(-4 * np.pi, 4 * np.pi, 100)
    z = np.linspace(-2, 2, 100)
    r = z**2 + 1
    x = r * np.sin(theta)
    y = r * np.cos(theta)
    ax.plot(x, y, z, label='parametric curve')
    ax.legend()
    
    plt.show()
    
    

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