Options for surface lines on terrain.
| Member | Value | Description |
|---|---|---|
| eSurfaceLinesOff | 0x0 | Surface lines are off on terrain. |
| eSurfaceLinesOn | 0x1 | Surface lines are on on terrain. |
| eSurfaceLinesOnWhenTerrainSrvrOn | 0x2 | Surface lines are on when terrain server is on. |





