Returns a leaf cell containing point p.
Usually there is exactly one such cell, but for points along the edge of a cell, any adjacent cell may be (deterministically) chosen.
This is because CellIDs are considered to be closed sets.
The returned cell will always contain the given point, i.e.
Returns a leaf cell containing point p. Usually there is exactly one such cell, but for points along the edge of a cell, any adjacent cell may be (deterministically) chosen. This is because CellIDs are considered to be closed sets. The returned cell will always contain the given point, i.e.
is always true.