Pie
A single slice of a pie chart.
Each PieSlice is a self-contained entity carrying its own label, value, and optional color. Providing the color on the slice (rather than as a separate style list) makes it impossible to supply a color count that does not match the slice count.
Parameters
label
The slice label, shown in the legend and while the slice is selected.
value
The slice value. The rendered arc is proportional to this value. Values are Double so callers can mix large totals with tiny contributions without rounding loss. Finite numbers are required; NaN, +Infinity, and -Infinity are rejected by validation.
color
The slice color. When null, a shade is generated from the style's base color.