pointsColumns property
Subclasses - aware members.
Keeps data values grouped in columns.
This column grouped data instance is managed here in the ChartTopContainer,
(immediate owner of YContainer and DataContainer)
as their data points are needed both during YContainer.layout
to calculate scaling, and also in DataContainer.layout to create
PresentersColumns
instance.
Implementation
/// Keeps data values grouped in columns.
///
/// This column grouped data instance is managed here in the [ChartTopContainer],
/// (immediate owner of [YContainer] and [DataContainer])
/// as their data points are needed both during [YContainer.layout]
/// to calculate scaling, and also in [DataContainer.layout] to create
/// [PresentersColumns] instance.
late PointsColumns pointsColumns;