Defines volume grid types.
| Member | Value | Description |
|---|---|---|
| eCrdnVolumeGridTypeUnknown | -1 | Unknown or unsupported volume grid. |
| eCrdnVolumeGridTypeCartesian | 0 | volume grid type cartesian. |
| eCrdnVolumeGridTypeCylindrical | 1 | volume grid type Cylindrical. |
| eCrdnVolumeGridTypeSpherical | 2 | volume grid type Spherical. |
| eCrdnVolumeGridTypeConstrained | 3 | volume grid type Constrained. |
| eCrdnVolumeGridTypeLatLonAlt | 4 | volume grid type LatLonAlt (Cartographic). |
| eCrdnVolumeGridTypeBearingAlt | 5 | volume grid type BearingAlt (Surface Bearing). |





