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# Connectionstyle Demo

    import matplotlib.pyplot as plt
    import matplotlib.patches as mpatches
    from mpl_toolkits.axes_grid1.axes_grid import AxesGrid
    from matplotlib.offsetbox import AnchoredText

    fig = plt.figure(1, figsize=(8, 5))
    fig.clf()

    def add_at(ax, t, loc=2):
        fp = dict(size=8)
        _at = AnchoredText(t, loc=loc, prop=fp)
        ax.add_artist(_at)
        return _at

    grid = AxesGrid(fig, 111, (3, 5), label_mode="1", share_all=True)

    grid[0].set_autoscale_on(False)

    x1, y1 = 0.3, 0.3
    x2, y2 = 0.7, 0.7

    def demo_con_style(ax, connectionstyle, label=None):
        if label is None:
            label = connectionstyle

        x1, y1 = 0.3, 0.2
        x2, y2 = 0.8, 0.6

        ax.plot([x1, x2], [y1, y2], ".")
        ax.annotate("",
                    xy=(x1, y1), xycoords='data',
                    xytext=(x2, y2), textcoords='data',
                    arrowprops=dict(arrowstyle="->",
                                    color="0.5",
                                    shrinkA=5, shrinkB=5,
                                    patchA=None,
                                    patchB=None,
                                    connectionstyle=connectionstyle,
                                    ),
                    )

        add_at(ax, label, loc=2)

    column = grid.axes_column[0]

    demo_con_style(column[0], "angle3,angleA=90,angleB=0",
                   label="angle3,\nangleA=90,\nangleB=0")
    demo_con_style(column[1], "angle3,angleA=0,angleB=90",
                   label="angle3,\nangleA=0,\nangleB=90")

    column = grid.axes_column[1]

    demo_con_style(column[0], "arc3,rad=0.")
    demo_con_style(column[1], "arc3,rad=0.3")
    demo_con_style(column[2], "arc3,rad=-0.3")

    column = grid.axes_column[2]

    demo_con_style(column[0], "angle,angleA=-90,angleB=180,rad=0",
                   label="angle,\nangleA=-90,\nangleB=180,\nrad=0")
    demo_con_style(column[1], "angle,angleA=-90,angleB=180,rad=5",
                   label="angle,\nangleA=-90,\nangleB=180,\nrad=5")
    demo_con_style(column[2], "angle,angleA=-90,angleB=10,rad=5",
                   label="angle,\nangleA=-90,\nangleB=10,\nrad=0")

    column = grid.axes_column[3]

    demo_con_style(column[0], "arc,angleA=-90,angleB=0,armA=30,armB=30,rad=0",
                   label="arc,\nangleA=-90,\nangleB=0,\narmA=30,\narmB=30,\nrad=0")
    demo_con_style(column[1], "arc,angleA=-90,angleB=0,armA=30,armB=30,rad=5",
                   label="arc,\nangleA=-90,\nangleB=0,\narmA=30,\narmB=30,\nrad=5")
    demo_con_style(column[2], "arc,angleA=-90,angleB=0,armA=0,armB=40,rad=0",
                   label="arc,\nangleA=-90,\nangleB=0,\narmA=0,\narmB=40,\nrad=0")

    column = grid.axes_column[4]

    demo_con_style(column[0], "bar,fraction=0.3",
                   label="bar,\nfraction=0.3")
    demo_con_style(column[1], "bar,fraction=-0.3",
                   label="bar,\nfraction=-0.3")
    demo_con_style(column[2], "bar,angle=180,fraction=-0.2",
                   label="bar,\nangle=180,\nfraction=-0.2")

    grid[0].set_xlim(0, 1)
    grid[0].set_ylim(0, 1)
    grid.axes_llc.axis["bottom"].toggle(ticklabels=False)
    grid.axes_llc.axis["left"].toggle(ticklabels=False)
    fig.subplots_adjust(left=0.05, right=0.95, bottom=0.05, top=0.95)

    plt.show()

Total running time of the script: ( 0 minutes 0.691 seconds)

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