User's Manual

Spectra Precision Focus 4 Total Station User Guide 89
Applications 4
4. Enter the perpendicular point to the line, or
select the
MSR softkey to take a measurement to
the point.
5. To calculate the coordinates of the intersection
point, press
[ENT].
If P1 and P2 are 3D points, the Z coordinate of the
perpendicular point is calculated relative to the
P1–P2 slope.
6. Enter PT and CD then press
[ENT] to record the
point.
Advanced feature: Entering angle and distance offsets
To display the offset input screen, select the
O/S
softkey.
In the Ang field, enter a positive value to rotate the line
clockwise. Enter a negative value to rotate the line
counter clockwise.
In the O/S field, enter a positive value to specify an offset to the right. Enter a negative
value to specify an offset to the left.