Replaces complete groups of four siblings with their parent, repeatedly.
This is S2's normalization, and the usual reason to reach for it is drawing: a normalized union covers the same ground with far fewer polygons, at the cost of mixed levels.
Replaces complete groups of four siblings with their parent, repeatedly.
This is S2's normalization, and the usual reason to reach for it is drawing: a normalized union covers the same ground with far fewer polygons, at the cost of mixed levels.