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# Basic pie chart

Demo of a basic pie chart plus a few additional features.

In addition to the basic pie chart, this demo shows a few optional features:

> - slice labels
> - auto-labeling the percentage
> - offsetting a slice with “explode”
> - drop-shadow
> - custom start angle

Note about the custom start angle:

The default `startangle` is 0, which would start the “Frogs” slice on the positive x-axis. This example sets `startangle = 90` such that everything is rotated counter-clockwise by 90 degrees, and the frog slice starts on the positive y-axis.

    import matplotlib.pyplot as plt

    # Pie chart, where the slices will be ordered and plotted counter-clockwise:
    labels = 'Frogs', 'Hogs', 'Dogs', 'Logs'
    sizes = [15, 30, 45, 10]
    explode = (0, 0.1, 0, 0)  # only "explode" the 2nd slice (i.e. 'Hogs')

    fig1, ax1 = plt.subplots()
    ax1.pie(sizes, explode=explode, labels=labels, autopct='%1.1f%%',
            shadow=True, startangle=90)
    ax1.axis('equal')  # Equal aspect ratio ensures that pie is drawn as a circle.

    plt.show()

Total running time of the script: ( 0 minutes 0.027 seconds)

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