Select the desired scanning direction. Affects the progress of a measurement.
The function of this selection is mainly the progression of selected segment when measuring a surface. When measuring using alternative Both, the instrument expects two measurements per segments before the next segment is automatically selected.
Each segment is marked with the corresponding letter (H, V or H+V) to indicate which direction that is measured. When two measurements have been performed, the segment total is the average of the two values.
If a standard requires that two orthogonal scans are done pr segment, the frame around a segment will be red if only one is measured, thus indicating that a measurement is lacking.