Reference Line

While staking out different objects like a point, line, surface or corridor, a separate line or alignment can be selected and referenced to record the station and offset values relative to the reference line in the stake record. To select a reference line or alignment, go to the Home menu / Settings and then tap Reference Line. Select the reference line from the map. Alternatively, tap and hold on a line you want to select as the reference line, and choose Select as Reference Line from the pop-up menu.

When a line is selected to be used as a reference line, an optional horizontal offset and a line start station can be applied.

The station and offset to this reference line can be displayed in the info bar as reference station (R. Sta) and reference offset (R. Off) while staking the actual object. To deselect the reference line, return to the Reference Line in the Home menu / Settings and then click on a blank area of the map screen. Alternatively, tap and hold on the original line (not the reference line) and choose Unselect Reference Line.