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# Inches and Centimeters

The example illustrates the ability to override default x and y units (ax1) to inches and centimeters using the `xunits` and `yunits` parameters for the `plot` function. Note that conversions are applied to get numbers to correct units.

This example requires `basic_units.py`

    from basic_units import cm, inch
    import matplotlib.pyplot as plt
    import numpy as np

    cms = cm * np.arange(0, 10, 2)

    fig = plt.figure()

    ax1 = fig.add_subplot(2, 2, 1)
    ax1.plot(cms, cms)

    ax2 = fig.add_subplot(2, 2, 2)
    ax2.plot(cms, cms, xunits=cm, yunits=inch)

    ax3 = fig.add_subplot(2, 2, 3)
    ax3.plot(cms, cms, xunits=inch, yunits=cm)
    ax3.set_xlim(3, 6)  # scalars are interpreted in current units

    ax4 = fig.add_subplot(2, 2, 4)
    ax4.plot(cms, cms, xunits=inch, yunits=inch)
    ax4.set_xlim(3*cm, 6*cm)  # cm are converted to inches

    plt.show()

Total running time of the script: ( 0 minutes 0.092 seconds)

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