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# Demo Axes Hbox Divider

    import numpy as np
    import matplotlib.pyplot as plt
    from mpl_toolkits.axes_grid1.axes_divider import HBoxDivider
    import mpl_toolkits.axes_grid1.axes_size as Size

    def make_heights_equal(fig, rect, ax1, ax2, pad):
        # pad in inches

        h1, v1 = Size.AxesX(ax1), Size.AxesY(ax1)
        h2, v2 = Size.AxesX(ax2), Size.AxesY(ax2)

        pad_v = Size.Scaled(1)
        pad_h = Size.Fixed(pad)

        my_divider = HBoxDivider(fig, rect,
                                 horizontal=[h1, pad_h, h2],
                                 vertical=[v1, pad_v, v2])

        ax1.set_axes_locator(my_divider.new_locator(0))
        ax2.set_axes_locator(my_divider.new_locator(2))

    if __name__ == "__main__":

        arr1 = np.arange(20).reshape((4, 5))
        arr2 = np.arange(20).reshape((5, 4))

        fig, (ax1, ax2) = plt.subplots(1, 2)
        ax1.imshow(arr1, interpolation="nearest")
        ax2.imshow(arr2, interpolation="nearest")

        rect = 111  # subplot param for combined axes
        make_heights_equal(fig, rect, ax1, ax2, pad=0.5)  # pad in inches

        for ax in [ax1, ax2]:
            ax.locator_params(nbins=4)

        # annotate
        ax3 = plt.axes([0.5, 0.5, 0.001, 0.001], frameon=False)
        ax3.xaxis.set_visible(False)
        ax3.yaxis.set_visible(False)
        ax3.annotate("Location of two axes are adjusted\n"
                     "so that they have equal heights\n"
                     "while maintaining their aspect ratios", (0.5, 0.5),
                     xycoords="axes fraction", va="center", ha="center",
                     bbox=dict(boxstyle="round, pad=1", fc="w"))

        plt.show()

Total running time of the script: ( 0 minutes 0.096 seconds)

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