[−][src]Module s2::cellid
Structs
| CellID | CellID uniquely identifies a cell in the S2 cell decomposition. The most significant 3 bits encode the face number (0-5). The remaining 61 bits encode the position of the center of this cell along the Hilbert curve on that face. The zero value and the value (1<<64)-1 are invalid cell IDs. The first compares less than any valid cell ID, the second as greater than any valid cell ID. |
| Iter |
Constants
| IJ_TO_POS | |
| MAX_LEVEL | |
| MAX_SIZE | |
| NUM_FACES | |
| POS_BITS | |
| POS_TO_IJ | |
| POS_TO_ORIENTATION |
Functions
| find_lsb_set_nonzero64 | |
| ij_level_to_bound_uv | ij_level_to_bound_uv returns the bounds in (u,v)-space for the cell at the given level containing the leaf cell with the given (i,j)-coordinates. |
| size_ij |