.. _pylab_examples-image_nonuniform:

pylab_examples example code: image_nonuniform.py
================================================



.. plot:: /home/mandrake/rpm/BUILD/matplotlib-1.1.1/doc/mpl_examples/pylab_examples/image_nonuniform.py

::

    '''
    This illustrates the NonUniformImage class, which still needs
    an axes method interface; either a separate interface, or a
    generalization of imshow.
    '''
    
    from matplotlib.pyplot import figure, show
    import numpy as np
    from matplotlib.image import NonUniformImage
    
    interp='nearest'
    
    x = np.linspace(-4, 4, 9)
    x2 = x**3
    y = np.linspace(-4, 4, 9)
    #print 'Size %d points' % (len(x) * len(y))
    z = np.sqrt(x[np.newaxis,:]**2 + y[:,np.newaxis]**2)
    
    fig = figure()
    fig.suptitle('NonUniformImage class')
    ax = fig.add_subplot(221)
    im = NonUniformImage(ax, interpolation=interp, extent=(-4,4,-4,4))
    im.set_data(x, y, z)
    ax.images.append(im)
    ax.set_xlim(-4,4)
    ax.set_ylim(-4,4)
    ax.set_title(interp)
    
    ax = fig.add_subplot(222)
    im = NonUniformImage(ax, interpolation=interp, extent=(-64,64,-4,4))
    im.set_data(x2, y, z)
    ax.images.append(im)
    ax.set_xlim(-64,64)
    ax.set_ylim(-4,4)
    ax.set_title(interp)
    
    interp = 'bilinear'
    
    ax = fig.add_subplot(223)
    im = NonUniformImage(ax, interpolation=interp, extent=(-4,4,-4,4))
    im.set_data(x, y, z)
    ax.images.append(im)
    ax.set_xlim(-4,4)
    ax.set_ylim(-4,4)
    ax.set_title(interp)
    
    ax = fig.add_subplot(224)
    im = NonUniformImage(ax, interpolation=interp, extent=(-64,64,-4,4))
    im.set_data(x2, y, z)
    ax.images.append(im)
    ax.set_xlim(-64,64)
    ax.set_ylim(-4,4)
    ax.set_title(interp)
    
    show()
    

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