Plot only inside a disc

Hello,
I would like to make a kind of magnifying glass. So I need to have a piece of
a graph and I would like it to have the form of a disc rather than of a box.
So is-it possible to only draw in a disc (I'm searching for a fast way to do
that) ?

Best regards.
Christophe.

You can turn off the rendering of the normal axes and axis, and clip
your data to an arbitrary patch or path; eg

    """
    Clipping to arbitrary patches and paths
    """
    import numpy as np
    import matplotlib.pyplot as plt
    import matplotlib.path as path
    import matplotlib.patches as patches

    fig = plt.figure()
    ax = fig.add_subplot(111, frameon=False, xticks=[], yticks=[])

    im = ax.imshow(np.random.rand(10,10))

    patch = patches.Circle((300,300), radius=100)
    im.set_clip_path(patch)

    plt.show()

···

On Thu, Jan 29, 2009 at 9:19 AM, <projetmbc@...748...> wrote:

Hello,
I would like to make a kind of magnifying glass. So I need to have a piece of
a graph and I would like it to have the form of a disc rather than of a box.
So is-it possible to only draw in a disc (I'm searching for a fast way to do
that) ?