Returns true if the cell union contains the given cell id. Containment
is defined with respect to regions, e.g. a cell contains its 4 children.
This is a fast operation (logarithmic in the size of the cell union).
CAVEAT: If you have constructed a non-normalized S2CellUnion using
FromVerbatim, note that groups of 4 child cells are *not* considered to
contain their parent cell. To get this behavior you must use one of the
other constructors or call Normalize() explicitly.
Returns true if the cell union contains the given cell id. Containment is defined with respect to regions, e.g. a cell contains its 4 children. This is a fast operation (logarithmic in the size of the cell union).
CAVEAT: If you have constructed a non-normalized S2CellUnion using FromVerbatim, note that groups of 4 child cells are *not* considered to contain their parent cell. To get this behavior you must use one of the other constructors or call Normalize() explicitly.