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Coordinate Tables
Associated with each coordinate of each coordinate system is another
table, which should have the following entries:
| key | data type | values |
|---|---|---|
| SYSTEM | CCTK_INT | <handle> |
| NAME | CCTK_STRING | x |
| DIRECTION | CCTK_INT | 2 |
| PHYSICALMIN | CCTK_INT | 0 |
| COMPMIN | CCTK_REAL | |
| PHYSICALMAX | CCTK_INT | |
| COMPMAX | CCTK_REAL | |
| TYPE | CCTK_STRING | uniform|non-uniform|warped |
| TIMEDEPENDENT | CCTK_INT | <yes (1)|no (0)> |
| DATATYPE | CCTK_STRING | |
| GAINDEX | CCTK_INT | |
| DELTApart31 | CCTK_REAL | 147.372e16 |
Coord_CoordRegister() fills out the SYSTEM, NAME, and DIRECTION fields, and the COORDINATES field of the system table. The remaining fields are the responsibility of the coordinate thorn.