OV-GSO-DC / dustem-wrapper_idl

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src/idl/dustem_read_qabs.pro 2.06 KB
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eafc1f8f   Annie Hughes   updated help info 
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FUNCTION dustem_read_qabs,file,silent=silent,help=help

;+
; NAME:
;   dustem_read_qabs
;
; PURPOSE:
;   reads information relating to the grain Qabs 
;   from the corresponding .DAT file
;
; CATEGORY:
;    DustEMWrap, Distributed, LowLevel, Initialization
;
; CALLING SEQUENCE:
;   st=dustem_read_qabs(file)
;
; INPUTS:
;    file  : input file to be read
;
; OPTIONAL INPUT PARAMETERS:
;
; OUTPUTS:
;    st   : dustem data structure
;
; OPTIONAL OUTPUT PARAMETERS:
;
; ACCEPTED KEY-WORDS:
;    help     : writes this help
;
; COMMON BLOCKS:
;    None
;
; SIDE EFFECTS:
;
; RESTRICTIONS:
;    The DustEM fortran code must be installed
;    The DustEMWrap IDL code must be installed
;
; PROCEDURES AND SUBROUTINES USED:  
;
; EXAMPLES:
;
; MODIFICATION HISTORY:
;    Evolution details on the DustEMWrap gitlab.
;    See http://dustemwrap.irap.omp.eu/ for FAQ and help.  
;-
  
IF keyword_set(help) THEN BEGIN
   doc_library,'dustem_read_qabs'
   full_st=0.
   goto,the_end
ENDIF
427f1205   Jean-Michel Glorian   version 4.2 merged 
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;== find material name from file name
Qstring='QABS_'
Estring='.DAT'
subs=str_sep(file,'/')
filename=subs(n_elements(subs)-1)
pos1=strpos(filename,Qstring)
pos2=strpos(filename,Estring)
material=strmid(filename,pos1+strlen(Qstring),pos2-(pos1+strlen(Qstring)))

st=''
Nmax=10000L
sts=strarr(Nmax)
OPENR,unit,file,/get_lun

;Get number of columns
readf,unit,Nsizes
;Get sizes
readf,unit,st
sizes=float(str_sep(strcompress(strtrim(st,2)),' '))
Ncol=2*Nsizes

nlines=0L
WHILE not eof(unit) DO BEGIN
  readf,unit,st
  sts(nlines)=st
  nlines=nlines+1
ENDWHILE
CLOSE,unit
free_lun,unit

values=fltarr(Ncol,Nlines)
FOR i=0L,Nlines-1 DO BEGIN
  values(*,i)=str_sep(strcompress(strtrim(sts(i),2)),' ')
ENDFOR

;== Make output structure
cmd='one_st={'
FOR i=0L,Ncol-1 DO BEGIN
  cmd=cmd+'v'+strtrim(i+1,2)+':'+'0.'
  IF i NE Ncol-1 THEN BEGIN
    cmd=cmd+','
  ENDIF ELSE BEGIN
    cmd=cmd+'}'
  ENDELSE
ENDFOR
toto=execute(cmd)
st=replicate(one_st,Nlines)

;=== fill in the structure
FOR j=0,Ncol-1 DO BEGIN
  st.(j)=reform(values(j,*))
ENDFOR

full_st={file:file,material:material,sizes:sizes,Qabs:st}
eafc1f8f   Annie Hughes   updated help info 
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the_end:
427f1205   Jean-Michel Glorian   version 4.2 merged 
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return,full_st

END