// Like GetCovering(), except that this method is much faster and the
// coverings are not as tight. All of the usual parameters are respected
// (max_cells, min_level, max_level, and level_mod), except that the
// implementation makes no attempt to take advantage of large values of
// max_cells(). (A small number of cells will always be returned.)
//
// This function is useful as a starting point for algorithms that
// recursively subdivide cells.
public void GetFastCovering(IS2Region region, List <S2CellId> covering)
{
region.GetCellUnionBound(covering);
CanonicalizeCovering(covering);
}
