Grid Distances

[Cory Sullivan]

Our company recently purchased a static GPS system. On a typical job, we
generate two (sometimes more) control points near the site; we then assume
coordinates for the control points and complete our survey with a total
station.



Back in the office we process the GPS data, and based on the solutions we
determined an appropriate combined scale factor to use. Then, we substitute
the assumed control point coordinates with the calculated GPS coordinates in
our raw data file. And finally we reprocess the raw data with the
calculated combined scale factor.



Is this the best way to generate grid coordinates? I already noticed that
coordinates calculated by resection or intersection are not regenerated,
thus causing a big headache.



So, can anybody give me some advice on a better method?



Cory