.. _ticks_and_spines-spines_demo_bounds:

ticks_and_spines example code: spines_demo_bounds.py
====================================================



.. plot:: /build/matplotlib-Gi1JJZ/matplotlib-1.5.1/doc/mpl_examples/ticks_and_spines/spines_demo_bounds.py

::

    """
    Demo of spines using custom bounds to limit the extent of the spine.
    """
    import numpy as np
    import matplotlib.pyplot as plt
    
    
    x = np.linspace(0, 2*np.pi, 50)
    y = np.sin(x)
    y2 = y + 0.1 * np.random.normal(size=x.shape)
    
    fig, ax = plt.subplots()
    ax.plot(x, y, 'k--')
    ax.plot(x, y2, 'ro')
    
    # set ticks and tick labels
    ax.set_xlim((0, 2*np.pi))
    ax.set_xticks([0, np.pi, 2*np.pi])
    ax.set_xticklabels(['0', '$\pi$', '2$\pi$'])
    ax.set_ylim((-1.5, 1.5))
    ax.set_yticks([-1, 0, 1])
    
    # Only draw spine between the y-ticks
    ax.spines['left'].set_bounds(-1, 1)
    # Hide the right and top spines
    ax.spines['right'].set_visible(False)
    ax.spines['top'].set_visible(False)
    # Only show ticks on the left and bottom spines
    ax.yaxis.set_ticks_position('left')
    ax.xaxis.set_ticks_position('bottom')
    
    plt.show()
    

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