dustem_set_data.pro
4.9 KB
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FUNCTION dustem_set_data,help=help,ext=ext,polsed=polsed,polext=polext,sed=sed,polfrac=polfrac,rchi2_weight=rchi2_weight,f_HI=f_HI
;+
; NAME:
; dustem_set_data
; PURPOSE:
; Initializes the dustem data structure (!dustem_data)
; CATEGORY:
; Dustem
; CALLING SEQUENCE:
; dustem_set_data,spec[,help=]
; INPUTS:
; spec: array of structures containing a SED
; OPTIONAL INPUT PARAMETERS:
; None
; OUTPUTS:
; None
; OPTIONAL OUTPUT PARAMETERS:
; None
; ACCEPTED KEY-WORDS:
; help = If set print this help
; COMMON BLOCKS:
; None
; SIDE EFFECTS:
; initializes !dustem_data
; wavelengths are forced to be the central filter wavelength for
; photometric data
; RESTRICTIONS:
; The dustem idl wrapper must be installed
; PROCEDURE:
; None
; EXAMPLES
; dustem_init
; dir=getenv('DUSTEM_SOFT_DIR')+'/src/dustem3.8_web/SEDs/'
; file=dir+'Gal_composite_spectrum.xcat'
; spec=read_xcat(file,/silent)
; dustem_set_data,spec
; MODIFICATION HISTORY:
; Written by J.-Ph. Bernard
; see evolution details on the dustem cvs maintained at CESR
; Contact J.-Ph. Bernard (Jean-Philippe.Bernard@cesr.fr) in case of problems.
;
; V. Guillet (2012) : dustem_set_data is turned into a function which can be used
; indifferently for sed, ext, polext
;-
IF keyword_set(help) THEN BEGIN
doc_library,'dustem_set_data'
goto,the_end
ENDIF
;=== clean the data structure
!dustem_data.sed = ptr_new()
!dustem_data.ext = ptr_new()
if keyword_set(polext) then !dustem_data.polext = ptr_new()
if keyword_set(polsed) then !dustem_data.polsed = ptr_new()
if keyword_set(polfrac) then !dustem_data.polfrac = ptr_new()
IF keyword_set(sed) THEN BEGIN
wavs=sed.wave
;=== Impose central wavelengths for photometric channels
ind=where(sed.filter NE 'SPECTRUM',count)
IF count NE 0 THEN BEGIN
wavs(ind)=dustem_filter2wav(sed(ind).filter)
ENDIF
;=== define observations structure
obs_st={instru_names:sed.instru,filt_names:sed.filter,wav:wavs, values:sed.spec,sigma:sed.error}
;=== fill !dustem_data
!dustem_data.sed = ptr_new(obs_st)
;VGb
; If f_HI is specified, multiply the data by f_HI
if keyword_set(f_HI) then begin
if f_HI gt 0 then (*!dustem_data.sed).values *= f_HI else f_HI = 1.
endif else f_HI = 1.
defsysv,'!dustem_f_HI',f_HI
;VGe
ENDIF
IF keyword_set(polsed) THEN BEGIN
wavs=polsed.wave
;=== Impose central wavelengths for photometric channels
ind=where(polsed.filter NE 'SPECTRUM',count)
IF count NE 0 THEN BEGIN
wavs(ind)=dustem_filter2wav(polsed(ind).filter)
ENDIF
;=== define observations structure
obs_st={instru_names:polsed.instru,filt_names:polsed.filter,wav:wavs, values:polsed.spec,sigma:polsed.error}
;=== fill !dustem_data
!dustem_data.polsed = ptr_new(obs_st)
;VGe
; If f_HI is specified, multiply the data by f_HI
if keyword_set(f_HI) then if f_HI gt 0 then $
(*!dustem_data.polsed).values *= f_HI
;VGe
ENDIF
IF keyword_set(polfrac) THEN BEGIN
wavs=polfrac.wave
;=== Impose central wavelengths for photometric channels
ind=where(polfrac.filter NE 'SPECTRUM',count)
IF count NE 0 THEN BEGIN
wavs(ind)=dustem_filter2wav(polfrac(ind).filter)
ENDIF
;=== define observations structure
obs_st={instru_names:polfrac.instru,filt_names:polfrac.filter,wav:wavs, values:polfrac.spec,sigma:polfrac.error}
;=== fill !dustem_data
!dustem_data.polfrac = ptr_new(obs_st)
ENDIF
IF keyword_set(polext) THEN BEGIN
wavs=polext.wave
;=== Impose central wavelengths for photometric channels
ind=where(polext.filter NE 'SPECTRUM',count)
IF count NE 0 THEN BEGIN
wavs(ind)=dustem_filter2wav(polext(ind).filter)
ENDIF
;=== define observations structure
obs_st={instru_names:polext.instru,filt_names:polext.filter,wav:wavs, values:polext.spec,sigma:polext.error}
;=== fill !dustem_data
!dustem_data.polext = ptr_new(obs_st)
ENDIF
IF keyword_set(ext) THEN BEGIN
wavs=ext.wave
;=== Impose central wavelengths for photometric channels
ind=where(ext.filter NE 'SPECTRUM',count)
IF count NE 0 THEN BEGIN
wavs(ind)=dustem_filter2wav(ext(ind).filter)
ENDIF
;=== define observations structure
obs_st={instru_names:ext.instru,filt_names:ext.filter,wav:wavs, values:ext.spec,sigma:ext.error}
;=== fill !dustem_data
!dustem_data.ext = ptr_new(obs_st)
ENDIF
!fit_rchi2_weight.sed=1.
!fit_rchi2_weight.ext=1.
if keyword_set(polext) then !fit_rchi2_weight.polext=1.
if keyword_set(polsed) then !fit_rchi2_weight.polsed=1.
if keyword_set(polfrac) then !fit_rchi2_weight.polfrac=1.
IF keyword_set(rchi2_weight) THEN begin
!fit_rchi2_weight.sed = rchi2_weight.sed
!fit_rchi2_weight.ext = rchi2_weight.ext
if keyword_set(polext) then !fit_rchi2_weight.polext = rchi2_weight.polext
if keyword_set(polsed) then !fit_rchi2_weight.polsed = rchi2_weight.polsed
if keyword_set(polfrac) then !fit_rchi2_weight.polfrac = rchi2_weight.polfrac
endif
return,ptr_new(obs_st)
the_end:
END