Prefer Settlements.create.
The cities, largest first.
The population they were planned from.
ReadonlyobjectRoot of all settlements.
Resolved settings.
Their sites, matching cities.
Removes every city and its terrain edits.
Replaces all settings. New population settings or size classes re-plan everything; other city settings apply to each city.
Sets the LOD camera of every city.
Updates every city (progressive generation and LOD).
StaticcreatePlans the population and creates its cities.
Every settlement of a population: the population model (generatePopulation) decides where people live and how many, planCities maps its settlements onto size classes (hamlets to cities), and each gets one City.