Leica GPS1200 Series Technical Reference Manual page 1242

Survey - Hidden Points
Step Description
SLOPE (F5) when <Chainage:> is highlighted. To measure a slope
distance and an elevation angle or percentage grade. The values are
used to compute the horizontal distance.
6. HIDDEN PT Hidden Point Measurement
<Offset:> The offset of the hidden point to the line between the two
known points.
<Location:> The location of the hidden point relative to the line from
<Point A:> to <Point B:>.
Type in a distance and select its location. When a hidden point meas-
urement device is attached to the receiver to measure the distance,
the value is automatically transferred.
The procedure of measuring the offset is the same as measuring the
chainage. Refer to step 4.
7. HIDDEN PT Hidden Point Measurement
<Chainage From:> The point from where the chainage has been
measured.
Select the point.
8. CALC (F1) calculates the hidden point and displays the results in
HIDDEN PT Hidden Point Result, Result page.
9. HIDDEN PT Hidden Point Result, Result page
GPS1200 1242
Refer to
chapter
46.5