eccodes/definitions/grib2/template.4.optical.def

# (C) Copyright 2005- ECMWF.

codetable[1] typeOfWavelengthInterval ('4.91.table',masterDir,localDir) : dump;
alias typeOfIntervalForFirstAndSecondWavelength=typeOfWavelengthInterval;

# Wavelengths in metres
signed[1] scaleFactorOfFirstWavelength : dump;
signed[4] scaledValueOfFirstWavelength : dump;
signed[1] scaleFactorOfSecondWavelength = missing(): can_be_missing,dump;
signed[4] scaledValueOfSecondWavelength = missing(): can_be_missing,dump;

meta firstWavelength  from_scale_factor_scaled_value(scaleFactorOfFirstWavelength, scaledValueOfFirstWavelength);
meta secondWavelength from_scale_factor_scaled_value(scaleFactorOfSecondWavelength, scaledValueOfSecondWavelength);
alias firstWavelengthInMetres = firstWavelength;
alias secondWavelengthInMetres = secondWavelength;

constant billion = 1000000000 : hidden;
meta firstWavelengthInNanometres  multdouble(firstWavelength, billion) : read_only;
meta secondWavelengthInNanometres multdouble(secondWavelength, billion) : read_only;