STAR*NET V6 - Circe

Chapter 5 Preparing Input Data
INLINE OPTION: .LONGITUDE PositiveWest/NegativeWest
This inline option allows you to switch the way that signs of longitudes are interpreted in
your data. As previously described in Chapter 4, Options, the default sign convention can
set to Positive West or Negative West longitudes for the project.
Using this inline option, you can include latitude/longitude data in your input file that
perhaps had been prepared by someone else, and was created using a sign convention for
longitudes different than that set for your project. The inline option changes the way
signs of longitudes are interpreted in your input data only! The sign convention specified
in the “Longitude Sign Convention” setting in the Project Options/General dialog still
controls the signs of longitudes listed in the adjustment output.
P 1 38-44-27.123 122-45-21.321 ! ! #Positive west default
.long neg
P 2 38-48-33.667 -122-45-38.315 ! ! #Negative west convention
P 2 38-48-33.667 -122-45-38.315 ! !
.long
P 2 38-48-33.667 122-45-38.315 ! ! #Back to the default
etc...
Assuming that project options are set to the “Positive West Longitude” convention in the
short example above, the first inline changes the input to a “Negative West Longitude”
convention and the second changes it back to the original default.
INLINE OPTION: .REFRACTION Value
This inline option allows you to change the “Default Coefficient of Refraction” value set
in the Project Options/General dialog to a new value whenever required due to special
atmospheric conditions encountered in the field.
.REF 0.05 #Change the current refraction coefficient
.REF 0 #Turn off refraction corrections
.REF #Reset refraction coefficient to project default
When the “.REFRACTION” inline is entered without a value, the coefficient is returned
to the default specified in the Project Options.
When this inline option is used to change the refraction coefficients within a project, the
actual coefficients used are listed with the zenith angle data review in the listing. Note
that the zenith angles shown in the output listing do not reflect the correction for
refraction. The correction is only applied internally during the adjustment process.
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