Spectra Precision Survey Pro CE v3.6 User Manual - Manual (Page 94)

User’s Manual
88
Set Up the Job
Once you have created the necessary DTM or DXF file and loaded it
in the data collector, you are ready to set up your job.
1. From the Main Menu, tap
6WDNHRXW ,
6WDNH '70 to open the Stake DTM screen.
2. Tap
%URZVH« and select the DXF or DTM
file for the area that you want to stake.
Warning: If importing a DXF or DTM file where the distance units in
the source file are different than the distance units for the current
job, the imported coordinates will be converted to the current job’s
distance units when they are imported. This is normally the desired
result, but it can cause a problem if the distance units for the
imported data or the current job were set incorrectly. This situation
can most commonly occur when working with Feet and US Survey
Feet, where the conversion from one to the other is not always
obvious.
Usually the difference between Feet and US Survey Feet is negligible
(2 parts per million), but when dealing with State Plane or UTM
mapping plane coordinates, which are often very large in magnitude,
the difference can be substantial if the coordinates are converted from
one format to the other.
If importing coordinates from a source where you are not sure if the
units are in Feet or US Survey Feet into a job that is set to Feet or
US Survey Feet, you will usually just want to import them without
any conversion being performed. To do this, be sure to select the
same distance units for the source file as those set for the current job.