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4-13
4 DISTANCE MEASUREMENT
4.7.4 Column Offset Measurement
If it is possible to measure circumscription point (P1) of column directly, the distance to the center of the
column (P0), coordinate and direction angle can be calculated by measured circumscription points (P2)
and (P3).
The direction angle of the center of the column is 1/2 of total direction angle of circumscription points
(P2) and (P3).
zWhen setting the coordinate value for the occupied station, refer to Section 5.1 “Setting Coordinate
Values of Occupied Point”.
Example: Non-prism measurement
Operating procedure Operation Display
1Press the [F4](P1
) key from distance measuring
mode to get the function on page 2. [F4]
2Press the [F1](OFSET) key. [F1]
3Press the [F4](P
) key. [F4]
4Press the [F1](COLUMN OFFSET) key. [F1]
5Press the [F3](NP/P) key to change to the non-
prism mode. [F3]
P
P
P
2
3
P
HR: 120°30'40"
HD: 123.456 m
VD: 5.678 m
MEAS MODE NP/P P1
OFSET S.O S/A P2
OFFSET 1/2
F1:ANG.OFFSET
F2:DIST.OFFSET
F3:PLANE OFFSET P
OFFSET 2/2
F1:COLUMN OFFSET
P
COLUMN OFFSET
Center
HD: m
MEAS --- NP/P ---
COLUMN OFFSET
Center NP
HD: m
MEAS --- NP/P ---
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