def excision(args):
    p = OptionParser(__doc__)
    opts, args = p.parse_args(args)

    fig = plt.figure(1, (5, 5))
    root = fig.add_axes([0, 0, 1, 1])

    plt.plot((.2, .8), (.6, .6), 'r-', lw=3)
    plt.plot((.4, .6), (.6, .6), 'b>-', mfc='g', mec='w', ms=12, lw=3)
    plt.plot((.3, .7), (.5, .5), 'r-', lw=3)
    plt.plot((.5, ), (.5, ), 'b>-', mfc='g', mec='w', ms=12, lw=3)

    # Circle excision
    plt.plot((.5, ), (.45, ), 'b>-', mfc='g', mec='w', ms=12, lw=3)
    circle = CirclePolygon((.5, .4), .05, fill=False, lw=3, ec="b")
    root.add_patch(circle)

    arrow_dist = .07
    ar_xpos, ar_ypos = .5, .52
    root.annotate(" ", (ar_xpos, ar_ypos),
            (ar_xpos, ar_ypos + arrow_dist),
            arrowprops=arrowprops)

    RoundLabel(root, .2, .64, "Gene")
    RoundLabel(root, .3, .54, "Excision")

    root.set_xlim(0, 1)
    root.set_ylim(0, 1)
    root.set_axis_off()

    figname = fname() + ".pdf"
    savefig(figname, dpi=300)
%prog excision
dataset/ETHPy150Open tanghaibao/jcvi/projects/bites.py/excision