FUNCTION dustem_read_grain,file,silent=silent,key_str=key_str,G0=G0,help=help ;+ ; NAME: ; dustem_read_grain ; PURPOSE: ; reads the file GRAIN.dat and returns the corresponding grain structure ; CATEGORY: ; Dustem ; CALLING SEQUENCE: ; st=dustem_read_grain(file,[/silent][,key_str=][,G0=][,/help]) ; INPUTS: ; file = file name to be read ; OPTIONAL INPUT PARAMETERS: ; None ; OUTPUTS: ; st: output structure ; OPTIONAL OUTPUT PARAMETERS: ; key_str : a string containing grain keywords ; G0 : The G0 value (scaling factor for radiation field) ; ACCEPTED KEY-WORDS: ; help = If set, print this help ; silent = If set, keeps quiet ; COMMON BLOCKS: ; None ; SIDE EFFECTS: ; None ; RESTRICTIONS: ; The dustem idl wrapper must be installed ; PROCEDURE: ; None ; EXAMPLES ; ; MODIFICATION HISTORY: ; Written by J.-Ph. Bernard, N. Flagey, D. Paradis Jan 2007 ; see evolution details on the dustem cvs maintained at CESR ; Contact J.-Ph. Bernard (Jean-Philippe.Bernard@cesr.fr) in case of problems. ;- ;=== Format for DUSTEM_WHICH=VERSTRAETE ;; # DUSTEM: definition of grain populations ;; # for each grain TYPE make sure you have the following files ;; # Q_TYPE.DAT in code_f90/les_QABS ;; # C_TYPE.DAT in code_f90/les_CAPA ;; # if option(MIX) MIX_TYPE.DAT in code_f90/les_DAT ;; # if option(POL) POL_TYPE.DAT in code_f90/les_DAT ;; # if keyword(SIZE) SIZE_TYPE.DAT in code_f90/les_DAT ;; # ;; # run keywords ;; # G0 scaling factor for radiation field ;; # nr of grain types ;; # grain type - Mdust/MH - rho(g/cm3) - amin(cm) - amax(cm) - alpha - nsize ;; # ;; SIZE ;; 1.00D+00 ;; 3 ;; PAH1 4.50D-04 2.25D+00 3.50D-08 7.22D-08 -3.50D+00 10 NONE ;; Gra 2.30D-03 2.25D+00 1.00D-07 5.00D-07 -3.50D+00 20 NONE ;; aSil 7.00D-03 3.30D+00 5.00D-07 1.10D-05 -3.50D+00 20 NONE ;; # ;=== Format for DUSTEM_WHICH=WEB3p8 ;; # DUSTEM: definition of grain populations ;; # ;; # run keywords ;; # G0 scaling factor for radiation field ;; # grain type, nsize, type keywords, Mdust/MH, rho, amin, amax, alpha/a0 [, at, ac, gamma (ED)] [, au, zeta, eta (CV)] ;; # cgs units ;; # ;; sdist ;; 1.000000 ;; PAH0 10 mix-logn 7.8000E-04 2.2400E+00 3.5000E-08 1.2000E-07 6.4000E-08 1.0000E-01 ;; PAH1 10 mix-logn 7.8000E-04 2.2400E+00 3.5000E-08 1.2000E-07 6.4000E-08 1.0000E-01 ;; amCBEx 15 logn 1.6500E-04 1.8100E+00 6.0000E-08 2.0000E-06 2.0000E-07 3.5000E-01 ;; amCBEx 25 plaw-ed 1.4500E-03 1.8100E+00 4.0000E-07 2.0000E-04 -2.8000E+00 1.5000E-05 1.5000E-05 2.0000E+00 ;; aSil 25 plaw-ed 7.8000E-03 3.5000E+00 4.0000E-07 2.0000E-04 -3.4000E+00 2.0000E-05 2.0000E-05 2.0000E+00 IF keyword_set(help) THEN BEGIN doc_library,'dustem_read_grain' full_st=0. goto,the_end ENDIF ;!run_pol now defined in dustem_init.pro ;defsysv, '!run_pol', 0. ; Global flag to know if polarisation is being run defsysv,'!run_tls',0. ; Global flag to know if TLS is being run CASE !dustem_which OF 'WEB3p8': BEGIN frmt='(A,D,D,D,D,D,I,A)' ;count # of lines openr,unit,file,/get_lun Nlines=0L str='' WHILE not eof(unit) DO BEGIN readf,unit,str Nlines=Nlines+1 ENDWHILE close,unit free_lun,unit ;== now read the file openr,unit,file,/get_lun ncurrent=0L REPEAT BEGIN readf,unit,str ncurrent=ncurrent+1 first_char=strmid(str,0,1) ENDREP UNTIL first_char NE '#' key_str=str readf,unit,G0 & ncurrent=ncurrent+1 nspecies=nlines-ncurrent one_st={grain_type:'',nsize:0L,type_keywords:'',Mdust_o_MH:0.D0,rho:0.D0,amin:0.D0,amax:0.D0,alpha_o_a0:0.D0, $ at:0.D0,ac:0.D0,gamma:0.D0, $ au:0.D0,zeta:0.D0,eta:0.D0} st=replicate(one_st,nspecies) FOR i=0L,nspecies-1 DO BEGIN readf,unit,str strv=str_sep(strcompress(strtrim(str,2)),' ') Nstrv=n_elements(strv) ii=0L st(i).grain_type=strv(ii) & ii=ii+1 st(i).nsize=long(strv(ii)) & ii=ii+1 st(i).type_keywords=strv(ii) & ii=ii+1 IF stregex(st(i).type_keywords, 'pol', /bool) THEN !run_pol = 1 IF stregex(st(i).type_keywords, 'dtls', /bool) THEN !run_tls = 1 st(i).Mdust_o_MH=double(strv(ii)) & ii=ii+1 st(i).rho=double(strv(ii)) & ii=ii+1 st(i).amin=double(strv(ii)) & ii=ii+1 st(i).amax=double(strv(ii)) & ii=ii+1 st(i).alpha_o_a0=double(strv(ii)) & ii=ii+1 IF ii LE Nstrv-1 THEN BEGIN st(i).at=double(strv(ii)) & ii=ii+1 ENDIF IF ii LE Nstrv-1 THEN BEGIN st(i).ac=double(strv(ii)) & ii=ii+1 ENDIF IF ii LE Nstrv-1 THEN BEGIN st(i).gamma=double(strv(ii)) & ii=ii+1 ENDIF IF ii LE Nstrv-1 THEN BEGIN st(i).au=double(strv(ii)) & ii=ii+1 ENDIF IF ii LE Nstrv-1 THEN BEGIN st(i).zeta=double(strv(ii)) & ii=ii+1 ENDIF IF ii LE Nstrv-1 THEN BEGIN st(i).eta=double(strv(ii)) & ii=ii+1 ENDIF ENDFOR full_st=st close,unit free_lun,unit END 'VERSTRAETE':BEGIN frmt='(A,D,D,D,D,D,I,A)' openr,unit,file,/get_lun str='' REPEAT BEGIN readf,unit,str first_char=strmid(str,0,1) ENDREP UNTIL first_char NE '#' key_str=str readf,unit,G0 readf,unit,nspecies one_st={type:'',propmass:0.D0,densgr:0.D0,tmin:0.D0,tmax:0.D0,alpha:0.D0,ndiscr:0,flag:''} st=replicate(one_st,nspecies) FOR i=0L,nspecies-1 DO BEGIN readf,unit,str strv=str_sep(strcompress(str),' ') st(i).type=strv(0) st(i).propmass=double(strv(1)) st(i).densgr=double(strv(2)) st(i).tmin=double(strv(3)) st(i).tmax=double(strv(4)) st(i).alpha=double(strv(5)) st(i).ndiscr=fix(strv(6)) st(i).flag=strv(7) ENDFOR full_st=st close,unit free_lun,unit END ELSE:BEGIN readcol,file,type,albmax,densgr,ngem,hydro,ioni,silent=silent nlines=n_elements(type) one_st={type:0,albmax:0.,densgr:0.,ngem:0,hydro:0.,ioni:0.} st=replicate(one_st,Nlines) st.type=type st.albmax=albmax st.densgr=densgr st.ngem=ngem st.hydro=hydro st.ioni=ioni full_st=st END ENDCASE the_end: RETURN,full_st END