named
The named locations this spatial model exposes for animation/placement (10.1g). Empty by default; a model that maintains a bounded set of named locations (e.g. ksl.modeling.spatial.DistancesModel) overrides this so those locations are discoverable by the animation inventory before a run. Deliberately not backed by a registry of every constructed AbstractLocation — models may create many transient locations at run time, and retaining them all would leak.