Spectra Precision Survey Pro v4.6 Ranger User Manual - Manual (Page 125)

Mapping Plane Scale Factor
115
Scale Factor for Existing Jobs
For existing jobs, the Scale Factor wizard can
be accessed from the Job > Settings > Surveying
screen by tapping the Setup Scale button. The
area directly above this button provides details
on the current scale factor configuration.
Whenever changes are made to the scale factor,
you will return to this screen when the Scale
Factor settings are configured. This screen will
display the new settings and remind you to
“Tap OK to update scale settings.” You must
then tap to save the changes. If you cancel
out of this screen, any changes will be lost and the scale factor will
revert to the previous configuration.
Working with a Scale Factor
Once a mapping plane scale factor is configured
for a job, the scaling affects most of the other
screens and routines. For example, when
viewing the coordinates for a point, where you
would normally only see the ground
coordinates, you will now see both ground and
grid northing and easting coordinates.
On screens that contain a field where a
distance is measured from an instrument
(manual input of shot data, GPS offset shot
data, stakeout tape measurements), it is
assumed these distances are on the ground and therefore the scale
factor will be applied automatically before calculating horizontal
distances in the job.