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ANALYSE\LMV DataCube [/SCAN LAMDBA|BETA] [/STEP DLAMBDA [DBETA]]
[/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
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). 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
/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.