Point Projection; Define Baseline - GPI -122 Instruction Manual

13. Point Projection

Point projection is used for projecting a point to an established baseline. By measuring a
point, its offset to start point, the horizontal distance and vertical distance between the
point and baseline can be calculated. the figure is shown as follow.
sP

13.1 Define Baseline

Survey (Height)
1.I.H. &T.H.
2.Set baseline
3.Point project
Pt.project(Begin)
Vz: 80°00' 13"
HR: 340°56' 50"
SD:
HD:
Meas T.H. Mode Enter
oSD
【Procedure of defining baseline】
1. Select the menu item 2 to define a baseline
▲
2. Measure the start point of the baseline
4.890m
4.831
46
Pt'
VD
Pt
HD
eP