bndf

 BNDF N1 N2 PHASE WCEN GAMMA VPIX NSIDE FILE -- Back 
                        projects spectra, dumps to a Doppler NDF file.

 This computes integrals over sinusoidal paths through the data and then
 dumps the results as an image in which the intensity at each point is 
 the value of the integral. The integral is carried out NSIDE**2 times 
 so it is best to start with low values to get an idea of the result.
 You should use 'back' first to see a direct plot. In order to get
 a filtered back-projection you should run BCKFIL first.

 This routine dumps to NDF files as used by the Doppler programs
 and so has to produce square images centred on zero velocity.

 Parameters:
            N1   -- First spectrum
            N2   -- Last spectrum
            PHASE-- Name of phase to use
            WCEN -- Rest wavelength
            GAMMA-- Systemic velocity
            VPIX -- Velocity km/s/pixel
            NSIDE-- Number of pixels on a side
            FWHM -- FWHM to set in file which will be picked up by
                    doppler routines such as comdat. If set to 0.
                    then a default of 2*VPIX will be used.
            FILE -- NDF file to dump back-projection to.

This command belongs to the classes: binary , output