ISOCAM Interactive Analysis User's Manual Version 5.0 - ISO - ESA

118 CHAPTER 14. IMAGE ANALYSIS AND DISPLAY
Figure 14.2: cvf display window.
CIA> cvf_cssp=sad_get(’cssp’, cvf_pds.sad_name)
CIA> help, cvf_cssp, /str
** Structure SPECTRUM_STRUC_1, 11 tags, length=4152:
NAME STRING ’spec000000000000_00’
NSPEC LONG 0
RA FLOAT 288.132
DEC FLOAT 67.6615
N LONG 76
WAVELENG FLOAT Array(200)
BANDWIDT FLOAT Array(200)
STAT FLOAT Array(200)
FLUX FLOAT Array(200)
DFLUX FLOAT Array(200)
MASK BYTE Array(4, 32)
5. If you have lost the SAD, maybe by saving the CVF PDS only and restoring without the
SAD in another CIA session, then don’t worry. The keyword flux returns the last spectrum
displayed before quitting cvf display. Wavelength information can be found in the CVF
PDS fields .CVF INCR, .WAVELENGTH START and .WAVELENGTH END.
6. xloadct can be invoked by clicking on Color.
7. The button Axis allows you to change either or both axes to a logarithmic scale.
14.2.2 xcvf
xcvf is a visualization tool for CVF data and a front end for the lower level routine conv cvf2isap.
xcvf only takes CVF PDSs as input, while conv cvf2isap works with both CVF PDSs and
AAR products. Since this chapter is concerned mostly with image visualization, the description