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authorJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
committerJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
commitfa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch)
treebdda434976bc09c864f2e4fa6f16ba1952b1e555 /pkg/tbtables/fitsio/ftpcls.f
downloadiraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz
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+C----------------------------------------------------------------------
+ subroutine ftpcls(ounit,colnum,frow,felem,nelem,sray,status)
+
+C write an array of character string values to the specified column of
+C the table.
+C The binary or ASCII table column being written to must have datatype 'A'
+
+C ounit i fortran unit number
+C colnum i number of the column to write to
+C frow i first row to write
+C felem i first element within the row to write
+C nelem i number of elements to write
+C sray c array of data values to be written
+C status i output error status
+C
+C written by Wm Pence, HEASARC/GSFC, June 1991
+
+ integer ounit,colnum,frow,felem,nelem,status
+ character*(*) sray(*)
+
+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 bstart,strlen,c1,c2,repeat,twidth
+ integer ibuff,i1,ntodo,rstart,estart,nchars,clen,tcode
+ character sbuff*80,blank*80,crow*9,cp1*9,cp2*9,ccol*4
+ logical small,fill
+
+ if (status .gt. 0)return
+
+C check for zero length array
+ if (nelem .le. 0)return
+ if (frow .lt. 1)then
+C error: illegal first row number
+ status=307
+ write(crow,2000)frow
+2000 format(i9)
+ call ftpmsg('Starting row number for table write '//
+ & 'request is out of range:'//crow//' (FTPCLS).')
+ return
+ end if
+ if (felem .lt. 1)then
+C illegal element number
+ status=308
+ write(crow,2000)felem
+ call ftpmsg('Starting element number for write '//
+ & 'request is out of range:'//crow//' (FTPCLS).')
+ return
+ end if
+
+ ibuff=bufnum(ounit)
+
+C if HDU structure is not defined then scan the header keywords
+ if (dtstrt(ibuff) .lt. 0)call ftrdef(ounit,status)
+
+ blank=' '
+ i1=1
+
+C column must be character string data type
+ tcode=tdtype(colnum+tstart(ibuff))
+ if (tcode .eq. 16)then
+C for ASCII columns, TNULL actually stores the field width
+ twidth=tnull(colnum+tstart(ibuff))
+ ntodo=nelem
+ rstart=frow-1
+ repeat=trept(colnum+tstart(ibuff))
+ estart=felem-1
+ if (estart .ge. repeat)then
+C illegal element number
+ status=308
+ write(crow,2000)felem
+ call ftpmsg('Starting element number for write '//
+ & 'request is out of range:'//crow//' (FTPCLS).')
+ return
+ end if
+ bstart=dtstrt(ibuff)+rstart*rowlen(ibuff)
+ & +tbcol(colnum+tstart(ibuff))+estart*twidth
+ else if (tcode .eq. -16)then
+C this is a variable length descriptor field
+C the length of the output string is defined by nelem
+ twidth=nelem
+ ntodo=1
+ repeat=1
+C write the number of string length and the starting offset:
+ call ftpdes(ounit,colnum,frow,twidth,
+ & nxheap(ibuff),status)
+C calc the i/o pointer position for the start of the string
+ bstart=dtstrt(ibuff)+nxheap(ibuff)+theap(ibuff)
+C increment the empty heap starting address:
+ nxheap(ibuff)=nxheap(ibuff)+twidth
+ else
+C error: not a character string column
+ status=309
+ return
+ end if
+
+C move the i/o pointer to the start of the sequence of pixels
+ call ftmbyt(ounit,bstart,.true.,status)
+
+C is the input string short enough to completely fit in buffer?
+ strlen=len(sray(1))
+ if (strlen .gt. 80 .and. twidth .gt. 80)then
+ small=.false.
+ else
+ small=.true.
+ end if
+
+C do we need to pad the FITS string field with trailing blanks?
+ if (twidth .gt. strlen)then
+ fill=.true.
+ else
+ fill=.false.
+ end if
+
+C process one string at a time
+20 continue
+ nchars=min(strlen,twidth)
+ if (small)then
+C the whole input string fits in the temporary buffer
+ sbuff=sray(i1)
+C output the string
+ call ftpcbf(ounit,1,nchars,sbuff,status)
+ else
+C have to write the string in several pieces
+ c1=1
+ c2=80
+30 sbuff=sray(i1)(c1:c2)
+C output the string
+ clen=c2-c1+1
+ call ftpcbf(ounit,1,clen,sbuff,status)
+ nchars=nchars-clen
+ if (nchars .gt. 0)then
+ c1=c1+80
+ c2=min(c2+80,c1+nchars-1)
+ go to 30
+ end if
+ end if
+
+C pad any remaining space in the column with blanks
+ if (fill)then
+ nchars=twidth-strlen
+40 clen=min(nchars,80)
+ call ftpcbf(ounit,1,clen,blank,status)
+ nchars=nchars-80
+ if (nchars .gt. 0)go to 40
+ end if
+
+ if (status .gt. 0)then
+ write(cp1,2000)i1
+ call ftpmsg('Error while writing ASCII string to ')
+ write(ccol,2001)colnum
+2001 format(i4)
+ write(cp1,2000)rstart+1
+ write(cp2,2000)estart+1
+ if (felem .eq. 1)then
+ call ftpmsg('column'//ccol//', row'//cp1
+ & //' (FTPCLS).')
+ else
+ call ftpmsg('column'//ccol//', row'//cp1
+ & //', element'//cp2//' (FTPCLS).')
+ end if
+ return
+ end if
+
+C find number of pixels left to do, and quit if none left
+ ntodo=ntodo-1
+ if (ntodo .gt. 0)then
+C increment the pointers
+ i1=i1+1
+ estart=estart+1
+ if (estart .eq. repeat)then
+ estart=0
+ rstart=rstart+1
+ bstart=dtstrt(ibuff)+rstart*rowlen(ibuff)+
+ & tbcol(colnum+tstart(ibuff))
+C move the i/o pointer
+ call ftmbyt(ounit,bstart,.true.,status)
+ end if
+ go to 20
+ end if
+ end