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authorJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
committerJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
commit40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch)
tree4464880c571602d54f6ae114729bf62a89518057 /pkg/tbtables/fitsio/ftbini.f
downloadiraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'pkg/tbtables/fitsio/ftbini.f')
-rw-r--r--pkg/tbtables/fitsio/ftbini.f181
1 files changed, 181 insertions, 0 deletions
diff --git a/pkg/tbtables/fitsio/ftbini.f b/pkg/tbtables/fitsio/ftbini.f
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+C--------------------------------------------------------------------------
+ subroutine ftbini(iunit,status)
+
+C initialize the parameters defining the structure of a binary table
+
+C iunit i Fortran I/O unit number
+C OUTPUT PARAMETERS:
+C status i returned error status (0=ok)
+C
+C written by Wm Pence, HEASARC/GSFC, June 1991
+
+ integer iunit,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)
+ character cnull*16, cform*8
+ common/ft0003/cnull(nf),cform(nf)
+C-------END OF COMMON BLOCK DEFINITIONS-----------------------------------
+
+ integer lenrow,nrows,pcnt,tfld,nkey,ibuff,i,j,nblank
+ character keynam*8,value*70,comm*72,cnaxis*8,clen*8,rec*80
+
+ if (status .gt. 0)return
+
+C define the number of the buffer used for this file
+ ibuff=bufnum(iunit)
+
+C store the type of HDU (2 = Binary table extension)
+ hdutyp(ibuff)=2
+
+C temporarily set the location of the end of the header to a huge number
+ hdend(ibuff)=2000000000
+ hdstrt(ibuff,chdu(ibuff)+1)=2000000000
+
+C check that this is a valid binary table, and get parameters
+ call ftgtbn(iunit,rowlen(ibuff),nrows,pcnt,tfld,status)
+ if (status .gt. 0)go to 900
+
+ if (tfld .gt. nf)then
+C arrays not dimensioned large enough for this many fields
+ status=111
+ call ftpmsg('This Binary table has too many fields '//
+ & 'to be read with FITSIO (FTBINI).')
+ go to 900
+ end if
+
+C store the number of fields in the common block
+ tfield(ibuff)=tfld
+
+ if (nxtfld + tfld .gt. nf)then
+C too many columns open at one time; exceeded array dimensions
+ status=111
+ return
+ end if
+
+ tstart(ibuff)=nxtfld
+ nxtfld=nxtfld+tfld
+
+C initialize the table field parameters
+ do 5 i=1,tfld
+ tscale(i+tstart(ibuff))=1.
+ tzero(i+tstart(ibuff))=0.
+ tnull(i+tstart(ibuff))=123454321
+ tdtype(i+tstart(ibuff))=-9999
+ trept(i+tstart(ibuff))=0
+C reset character NUL string, in case it has been previously
+C defined from an ASCII table extension
+ cnull(i+tstart(ibuff))=char(0)
+5 continue
+
+C initialize the default heap starting address (immediately following
+C the table data) and set the next empty heap address
+C PCOUNT specifies the amount of special data following the table
+ scount(ibuff)=pcnt
+ theap(ibuff)=rowlen(ibuff)*nrows
+ nxheap(ibuff)=pcnt
+
+C now read through the rest of the header looking for table column
+C definition keywords, and the END keyword.
+
+ nkey=8
+8 nblank=0
+10 nkey=nkey+1
+ call ftgrec(iunit,nkey,rec,status)
+ if (status .eq. 107)then
+C if we hit the end of file, then set status = no END card found
+ status=210
+ call ftpmsg('Required END keyword not found in Binary table'//
+ & ' header (FTBINI).')
+ go to 900
+ else if (status .gt. 0)then
+ go to 900
+ end if
+ keynam=rec(1:8)
+ comm=rec(9:80)
+
+ if (keynam(1:1) .eq. 'T')then
+C get the binary table parameter (if it is one)
+ call ftpsvc(rec,value,comm,status)
+ call ftgbtp(ibuff,keynam,value,status)
+ else if (keynam .eq. ' ' .and. comm .eq. ' ')then
+ nblank=nblank+1
+ go to 10
+ else if (keynam .eq. 'END')then
+ go to 20
+ end if
+ go to 8
+
+20 continue
+
+C test that all the required keywords were found
+ do 25 i=1,tfld
+ if (tdtype(i+tstart(ibuff)) .eq. -9999)then
+ status=232
+ call ftkeyn('TFORM',i,keynam,status)
+ call ftpmsg('Required '//keynam//
+ & ' keyword not found (FTAINI).')
+ return
+ end if
+25 continue
+
+
+C now we know everything about the table; just fill in the parameters:
+C the 'END' record begins 80 bytes before the current position, ignoring
+C any trailing blank keywords just before the END keyword
+ hdend(ibuff)=nxthdr(ibuff)-80*(nblank+1)
+
+C the data unit begins at the beginning of the next logical block
+ dtstrt(ibuff)=((nxthdr(ibuff)-80)/2880+1)*2880
+
+C reset header pointer to the first keyword
+ nxthdr(ibuff)=hdstrt(ibuff,chdu(ibuff))
+
+C the next HDU begins in the next logical block after the data
+ hdstrt(ibuff,chdu(ibuff)+1)=
+ & dtstrt(ibuff)+(rowlen(ibuff)*nrows+pcnt+2879)/2880*2880
+
+C determine the byte offset of the beginning of each field and row length
+ if (tfld .gt. 0)then
+ call ftgtbc(tfld,tdtype(1+tstart(ibuff)),
+ & trept(1+tstart(ibuff)),tbcol(1+tstart(ibuff)),lenrow,status)
+
+C FITSIO deals with ASCII columns as arrays of strings, not
+C arrays of characters, so need to change the repeat count
+C to indicate the number of strings in the field, not the
+C total number of characters in the field.
+ do 30 i=1,tfld
+ if (tdtype(i+tstart(ibuff)) .eq. 16)then
+ j=trept(i+tstart(ibuff))/tnull(i+tstart(ibuff))
+ trept(i+tstart(ibuff))=max(j,1)
+ end if
+30 continue
+ if (status .gt. 0)go to 900
+
+C check that the sum of the column widths = NAXIS2 value
+ if (rowlen(ibuff) .ne. lenrow)then
+ status=241
+ write(cnaxis,1001)rowlen(ibuff)
+ write(clen,1001)lenrow
+1001 format(i8)
+ call ftpmsg('NAXIS1 ='//cnaxis//' not equal'//
+ & ' to the sum of the column widths ='//clen//' (FTBINI).')
+ end if
+ end if
+
+900 continue
+ end