Leica TPS1200 series Technical Reference Manual page 990

Reference Line
Field Option
<Reflector Ht:> User input
<Chainage> Output
<∆Offset:> Output
<Check Dist 1:> Output
<Check Dist 2:> Output
TPS1200
Description
The last used reflector height is suggested when
accessing REFLINE Measure Points, Ref XX page.
An individual reflector height can by typed in.
Chainage of the current position along the line/arc.
This is the chainage of the start of the reference
line/arc plus <∆Line:>/<∆Arc:>.
Perpendicular offset from the reference line/arc
calculated from the reference point to the measured
point.
For reference arcs, <∆Offset:>, <∆Arc:> and
<∆Arc-End:> values are always calculated so as to
produce the smallest <∆Offset:> possible. To
ensure this the arc will be extended if necessary.
Refer to paragraph "Measure to arc - horizontal
measurements".
Horizontal distance from start point to measured
point.
Horizontal distance from end point to measured
point.
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