flat
fun AdministrativeUnit.flatMapSubCartographicBoundariesViewDataList(administrativeUnit: AdministrativeUnit, cartographicBoundaries: MutableList<CartographicBoundaryViewData> = mutableListOf()): List<CartographicBoundaryViewData>
Recursively iterates over all sub-administrative units within an AdministrativeUnit and creates a list of converted CartographicBoundaryViewData objects.
Return
a list containing CartographicBoundaryViewData objects for all encountered cartographic boundaries
Parameters
administrative
the root AdministrativeUnit to start the iteration
cartographic
an empty or pre-populated list to store the converted data (optional)