Modified Commands

The following applications have been modified:

• compare has a -i option for the input filename for non-interactive scripting.

• multistack and stacker plot ordinate limits now always make visible all the spectra, regardless of the chosen offset.

• passband does not dump WCS mappings in NDFCOPY. Ensured that the plots of spectra use the axis co-ordinate system. Removed unused -r option.

• peakmap now has -c option to specify the number of contour levels to plot.

• step now plots the image slices in an optimally shaped grid rather than full size in quick succession, and thereby permits comparison of the slices.

• velmap generalised the transformation of the measured line displacements from the rest-frame co-ordinate in the current spectral system into one of four velocity measurements using WCSTRAN. Added a SpecFrame to achieve this functionality for UK data-cube files. Also recognises the SKY-DSBSPECTRUM Domain.

  Added the -s option to define the co-ordinate system of the derived velocities. Ensured that the plots of spectra use the axis co-ordinate system. The script inquires the WCS for the rest-frame frequency to avoid unnecessary prompting.

  Changed lower percentile for display from 15 to 2. Use spectrum colour table. Added a velocity key.

  Additional -c option to specify the number of contours; this may be zero to prevent contours be overlaid. Added -ci option to specify the colour index of contours.