Tick mark options. Tick marks represent milestones at specified intervals along a vehicle's track in the 3D Graphics window.
| Member | Value | Description |
|---|---|---|
| eTickDataUnknown | -1 | Tick mark option: unknown. |
| eTickDataCrossTrack | 0 | Draw tick marks in cross-track direction. |
| eTickDataPoint | 1 | Display tick as a point. |
| eTickDataRadial | 2 | Draw tick marks in radial direction. |
| eTickDataRadialAndCrossTrack | 3 | Draw tick marks in radial and cross-track directions. |





