dustem_collect_wav.pro
864 Bytes
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FUNCTION dustem_collect_wav,filt_names
;Collects all wavelengths of filter transmission for the
;requested filters.
;sort them in increasing order and removes duplicates.
Nfilt=n_elements(filt_names)
all_wavs=[0.D0]
Ninst=n_tags((*!dustem_filters))
ifilt=lonarr(Nfilt) ;index of the instrument in !dustem_filters
jfilt=lonarr(Nfilt) ;index of the filter in !dustem_filters
FOR i=0L,Ninst-1 DO BEGIN
match,filt_names,(*!dustem_filters).(i).filter_names,ind1,ind2,count=count
IF count NE 0 THEN BEGIN
ifilt(ind1)=i
jfilt(ind1)=ind2
ENDIF
ENDFOR
FOR i=0L,Nfilt-1 DO BEGIN
all_wavs=[all_wavs,*((*!dustem_filters).(ifilt(i)).FILTER_WAVELENGTHS)(jfilt(i))]
ENDFOR
all_wavs=all_wavs(1:*)
;==sort wavelengths
order=sort(all_wavs)
all_wavs=all_wavs(order)
;remove multiple occurences
un=uniq(all_wavs)
all_wavs=all_wavs(un)
RETURN,all_wavs
END