Spectra Precision Survey Pro v4.6 Ranger User Manual - Manual (Page 129)

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Other Tutorials
This section describes how to use several of the routines in Survey
Pro. Each example outlines the procedure to use a particular screen.
The examples are written in a general way so the user can use their
own data to become familiar with the routine.
Import / Export
The Import routine allows you to add the coordinates from any job to
the current job, or import LandXML data.
The Export routine allows you to export any coordinates from the
current job to a new job, or export the data in the current job to a
LandXML file.
These routines provide full compatibility between older TDS file
formats.
Warning: Importing coordinates from any source other than a JOB
file requires that the distance units used in the source file be
specified. It is not necessary to specify the distance units when
importing coordinates from a JOB file since those units are written
within the file.
If importing coordinates 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 any distance units were set incorrectly. This
situation can most commonly occur when working with International
Feet and US Survey Feet where the conversion from one to the other
is not always obvious.
Usually the difference between International 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.