XL_AXIS_CROSSES

Specifies the point on the specified axis where the other axis crosses.

Example:

from pptx.enum.chart import XL_AXIS_CROSSES

value_axis.crosses = XL_AXIS_CROSSES.MAXIMUM

AUTOMATIC

The axis crossing point is set automatically, often at zero.

CUSTOM

The .crosses_at property specifies the axis crossing point.

MAXIMUM

The axis crosses at the maximum value.

MINIMUM

The axis crosses at the minimum value.