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subroutine dat_frm
c ------------------
external dat_frm_desc
external dat_frm_opts
external dat_frm_read
integer dtype/0/
call dat_init_desc(dtype, dat_frm_desc)
call dat_init_opts(dtype, dat_frm_opts)
call dat_init_read(dtype, dat_frm_read)
end
subroutine dat_frm_desc(text)
! -----------------------------
character*(*) text ! (out) description
! type description
! ----------------------------------
text='FRM PUMA & PANDA at FRM2 Munich'
end
subroutine dat_frm_opts
! -----------------------
print '(x,a)'
1,'x: x-axis (default: first column or first variable'
1,' with step in Qscan)'
1,'y: y-axis (default: last column)'
1,'mon: monitor (default: mon1)'
end
subroutine dat_frm_read
1 (lun, forced, nread, putval, nmax, xx, yy, ss, ww)
! ----------------------------------------------------
implicit none
integer lun ! (in) logical unit number (file will be closed if successful)
integer forced ! 0: read only if type is sure; 1: forced read
integer nread ! (out) >=0: = number of points read, file closed
! -1: not correct type, file rewinded
! -2: correct type, but unreadable, file rewinded
external putval ! (in) subroutine to put name/value pairs.
! for numeric data: call putval('name', value) ! value must be real
! for character data: call putval('name=text', 0.0)
integer nmax ! max. number of points
real xx(*) ! x-values
real yy(*) ! y-values
real ss(*) ! sigma
real ww(*) ! weights (original monitor)
! local
integer mcol
parameter (mcol=64)
real y,s,r,f,ymon,values(mcol)
integer i,j,l,errcnt,ncol
integer xcol,ycol,mncol
integer iostat
character line*1024
character xaxis*16, yaxis*16, moncol*16, col1*16
integer headcnt
real qh,qk,ql,en,dh,dk,dl,de
headcnt=0
1 read(lun,'(a)',err=100,end=100) line
headcnt=headcnt+1
if (line(1:15) .eq. 'filename : ') then
goto 1
else if (line(1:15) .eq. 'created at : ') then
call putval('Date='//line(16:), 0.0)
goto 1
else if (line(1:15) .eq. 'instrument : ') then
call putval('Instrument='//line(16:), 0.0)
goto 1
else if (line(1:15) .eq. 'user : ') then
call putval('User='//line(16:), 0.0)
goto 1
else if (line(14:15) .eq. ': ') then
goto 1
endif
if (headcnt .lt. 3 .and. forced .le. 0) goto 100
call dat_start_options
xaxis=' '
call dat_str_option('x', xaxis)
yaxis=' '
call dat_str_option('y', yaxis)
moncol=' '
call dat_str_option('mon', moncol)
if (moncol .eq. ' ') then
moncol='mon1'
elseif (moncol .gt. '0' .and. moncol .le. '9') then
moncol='mon'//moncol(1:)
endif
2 read(lun,'(a)',err=100,end=100) line
if (line(1:10) .ne. 'scan data:') goto 2
nread=0
errcnt=0
read(lun, '(a)', err=99,end=99) line
if (xaxis .eq. ' ') then
i = index(line, 'Qscan')
if (i .ne. 0 .and. xaxis .eq. ' ') then
line=line(i+5:)
i=index(line,'(')
if (i .ne. 0) line(i:i)=' '
i=index(line,')')
if (i .ne. 0) line(i:i)=' '
read(line, *, iostat=iostat) qh,qk,ql,en,dh,dk,dl,de
call putval('QH', qh)
call putval('QK', qk)
call putval('QL', ql)
call putval('EN', en)
call putval('DQH', qh)
call putval('DQK', dk)
call putval('DQL', dl)
call putval('DEN', de)
if (dh .ne. 0) then
xaxis='h'
elseif (dk .ne. 0) then
xaxis='k'
elseif (dl .ne. 0) then
xaxis='l'
elseif (de .ne. 0) then
xaxis='E'
endif
else
! ignore other scan types
endif
endif
read(lun,'(a)',err=99,end=99) line
i=1
line(len(line):len(line))=' '
ncol=0
xcol=0
ycol=0
mncol=0
31 do while (line(i:i) .eq. ' ')
i=i+1
if (i .gt. len(line)) goto 39
enddo
l=i
do while (line(i:i) .ne. ' ')
i=i+1
enddo
if (line(l:i) .eq. ';') goto 31
ncol=ncol+1
if (ncol .eq. 1) col1=line(l:i)
if (line(l:i) .eq. yaxis .and. ycol .eq. 0) then
ycol=ncol
elseif (line(l:i) .eq. xaxis .and. xcol .eq. 0) then
xcol=ncol
elseif (line(l:i) .eq. moncol .and. mncol .eq. 0) then
mncol=ncol
endif
goto 31
39 if (ycol .eq. 0) then
ycol=ncol
yaxis=line(l:)
endif
if (xcol .eq. 0) then
xcol=1
xaxis=col1
endif
call putval('XAxis='//xaxis, 0.0)
call putval('YAxis='//yaxis, 0.0)
! ignore units
read(lun, '(a)', err=99,end=99) line
ymon=0
l=min(mcol,max(xcol,ycol,mncol))
40 read(lun,'(a)',end=88,err=88) line
if (line(2:5) .eq. '****') goto 88
i=index(line,';')
if (i .ne. 0) line(i:i)=' '
read(line,*,err=99,end=99) (values(j),j=1,l)
if (nread .ge. nmax) goto 29
if (mncol .eq. 0) then
if (ymon .eq. 0) ymon=1.
r=ymon
else
r=values(mncol)
if (r .gt. 0) then
if (ymon .eq. 0) ymon=r
else
if (ymon .eq. 0) ymon=1.
r=ymon
endif
endif
f=ymon/r
if (f .le. 0.0) f=1.0
nread=nread+1
xx(nread)=values(xcol)
y=values(ycol)
if (y .gt. 0) then
s=sqrt(y) ! statistical error of detector
else
s=1
endif
yy(nread)=y*f
ss(nread)=s*f
ww(nread)=r
goto 40
29 print *,'too many points - truncated'
88 close(lun)
call putval('NP', nread*1.0)
call putval('Monitor', ymon)
return
99 nread=-2
rewind lun
print *,'DAT_FRM: error during read'
call putval('Monitor', 0.0)
return
100 nread=-1
rewind lun
call putval('Monitor', 0.0)
end