Regional acceleration options.
| Member | Value | Description |
|---|---|---|
| eRegionAccessUnknown | -1 | Unknown regional acceleration option. |
| eRegionAccessAutomatic | 0 | Automatic - if selected and the grid altitude is 0 with respect to the defining ellipsoid for the central body, visibility to regions' bounding sets of points is computed and used to limit times for computations to enclosed points. |
| eRegionAccessOff | 1 | Off - should be selected in certain cases, such as the use of a very small or narrow sensor in conjunction with a very narrow coverage region. |





