hello all,

given the information on a standard USGS camera calibration report, and
entering all the required fields into a new .cam file using the create
camera report tool in the geocoding wizard, how is the following field
calculated:

                        PrinciplePointX = 1.7976931348623157E+308
                        PrinciplePointY = 1.7976931348623157E+308

this is not a value on the USGS report (there is a similarly named field
called "Calibrated Principal Point" on the report, but this has it's own
entry in the .cam file), so i assume it is calculated from all the other
data entered.  does someone know what data is used for the calculation?

thanks,
lance
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