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    [/LINE LineCube] [/FORCE What Value]

    Read  the  spectra cube stored in input DataCube and convert it in a set
    of spectra automatically written in the currently  opened  output  file.
    The  spectra cube can be ordered in LMV, VLM, LVM, etc... FITS files are
    automatically converted.

    By default, the command sorts the spectra to mimic the scanning path  of
    a  telescope  along the lambda direction, shifted on beta for each scan.
    Each constant beta row has a unique SCAN number. The sorting can be  ro-
    tated by 90 degree by using the /SCAN BETA option.

    Fully blanked spectra in the input cube are ignored. If the cube spatial
    axes are largely oversampled, the /STEP option allows the user to select
    1  spectrum  every  DLAMBDA (resp. DBETA) in the LAMBDA direction (resp.
    BETA). DLAMBDA and DBETA are expressed in pixel  numbers.  If  DBETA  is
    omitted,  it defaults to DLAMBDA. The default value of DLAMBDA and DBETA
    (if the /STEP option is not invoked) is 1, implying a conversion of  the
    whole cube.

    User should take care that many parameters of the CLASS spectrum headers
    have no meaning here. They are left to their default values.

    If /LINE provides a LineCube which matches exactly the DataCube  (dimen-
    sions,  coverage,  source  name,  ...), each spectrum extracted from the
    DataCube is exported with a LINE Associated  Array  extracted  from  the
    LineCube.  The LineCube should encode with 1 the parts of the cube where
    there is signal, and 0 where there is no signal. The LINE Associated Ar-
    ray  can be reused later on with the commands SET WINDOW /ASSOCIATED and

    If /FORCE is present, elements from the cube header can be overriden  at
    import  time.  For  now,  only the scale unit can be customized with the
    keyword UNIT:
      /FORCE UNIT Value
    where value is a keyword for supported scale units. This is  useful  for
    cubes  imported  from  outer world where the scale unit syntax may vary.
    Type "LMV cubename /FORCE UNIT ?" for possible choices.


Gildas manager 2020-10-13