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author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
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committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /pkg/tbtables/fitsio/ftgtdm.f | |
download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz |
Initial commit
Diffstat (limited to 'pkg/tbtables/fitsio/ftgtdm.f')
-rw-r--r-- | pkg/tbtables/fitsio/ftgtdm.f | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/pkg/tbtables/fitsio/ftgtdm.f b/pkg/tbtables/fitsio/ftgtdm.f new file mode 100644 index 00000000..49230faa --- /dev/null +++ b/pkg/tbtables/fitsio/ftgtdm.f @@ -0,0 +1,99 @@ +C---------------------------------------------------------------------- + subroutine ftgtdm(iunit,colnum,maxdim,naxis,naxes,status) + +C parse the TDIMnnn keyword to get the dimensionality of a column + +C iunit i fortran unit number to use for reading +C colnum i column number to read +C maxdim i maximum no. of dimensions to read; dimension of naxes +C OUTPUT PARAMETERS: +C naxis i number of axes in the data array +C naxes i array giving the length of each data axis +C status i output error status (0=OK) +C +C written by Wm Pence, HEASARC/GSFC, October 1993 + + integer iunit,colnum,maxdim,naxis,naxes(*),status + +C-------COMMON BLOCK DEFINITIONS:-------------------------------------------- + integer nf,nb,ne + parameter (nb = 20) + parameter (nf = 3000) + parameter (ne = 200) + integer bufnum,chdu,hdutyp,maxhdu,hdstrt,hdend,nxthdr,dtstrt + integer nxtfld + logical wrmode + common/ft0001/bufnum(199),chdu(nb),hdutyp(nb),maxhdu(nb), + & wrmode(nb),hdstrt(nb,ne),hdend(nb),nxthdr(nb),dtstrt(nb),nxtfld + integer tfield,tstart,tbcol,rowlen,tdtype,trept,tnull,scount + integer theap,nxheap + double precision tscale,tzero + common/ft0002/tfield(nb),tstart(nb),tbcol(nf),rowlen(nb), + & tdtype(nf),trept(nf),tscale(nf),tzero(nf),tnull(nf),scount(nb) + & ,theap(nb),nxheap(nb) +C-------END OF COMMON BLOCK DEFINITIONS----------------------------------- + + integer ibuff,nfound,c1,c2,clast,dimval + logical last + character*120 tdim + + if (status .gt. 0)return + +C define the number of the buffer used for this file + ibuff=bufnum(iunit) + + if (colnum .lt. 1 .or. colnum .gt. tfield(ibuff))then +C illegal column number + status=302 + return + end if + + nfound=0 +C try getting the TDIM keyword value + call ftgkns(iunit,'TDIM',colnum,1,tdim,nfound,status) + + if (nfound .ne. 1)then +C no TDIM keyword found + naxis=1 + naxes(1)=trept(colnum+tstart(ibuff)) + return + end if + + naxis=0 +C first, find the opening ( and closing ) + c1=index(tdim,'(')+1 + c2=index(tdim,')')-1 + if (c1 .eq. 1 .or. c2 .eq. -1)go to 900 + + last=.false. +C find first non-blank character +10 if (tdim(c1:c1) .ne. ' ')go to 20 + c1=c1+1 + go to 10 + +C find the comma separating the dimension sizes +20 clast=index(tdim(c1:c2),',')+c1-2 + if (clast .eq. c1-2)then + last=.true. + clast=c2 + end if + +C read the string of characters as the (integer) dimension size + call ftc2ii(tdim(c1:clast),dimval,status) + if (status .gt. 0)then + call ftpmsg('Error in FTGTDM parsing dimension string: ' + & //tdim) + go to 900 + end if + + naxis=naxis+1 + if (naxis .le. maxdim)naxes(naxis)=dimval + + if (last)return + + c1=clast+2 + go to 10 + +C could not parse the tdim value +900 status=263 + end |