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9 VPM
Virtual Plane Measurement
The Virtual plane includes the Vertical plane.
With VPM measurement, the Coordinates on the vertical plane and virtual plane can be obtained by
entering the “Station Coordinates and Azimuth” and by measuring point 1, point 2 and point 3.
Two points make a vertical plane and three points make a virtual plane. You can measure the point
Coordinates of this virtual plane by aiming at your desired points.
Press the [F3][VPM] of the PowerTopoLite screen to view the STATION POINT SETUP screen of the
VPM function.
z [LIST] key
All stored points can be displayed as follows by pressing [F2][LIST].
Press the [F2][LIST] to view POINT SELECTION FROM THE LIST screen. You can enter Coordinates
data by applying the List data.
P 2
P1
ertical plane created by 2
points
Virtual plane created by 3 points
Coordinates of your aimed
point on the vertical plane
Station
Coordinates
Azimuth
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