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iter_b.f
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iter_b.f
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program f77iterate_b
C external work function is passed to the iterator
external str_iter
integer ncols
parameter (ncols=2)
integer units(ncols), colnum(ncols), datatype(ncols)
integer iotype(ncols), offset, rows_per_loop, status
character*70 colname(ncols)
integer iunit, blocksize
character*80 fname
C include f77.inc -------------------------------------
C Codes for FITS extension types
integer IMAGE_HDU, ASCII_TBL, BINARY_TBL
parameter (
& IMAGE_HDU = 0,
& ASCII_TBL = 1,
& BINARY_TBL = 2 )
C Codes for FITS table data types
integer TBIT,TBYTE,TLOGICAL,TSTRING,TSHORT,TINT
integer TFLOAT,TDOUBLE,TCOMPLEX,TDBLCOMPLEX
parameter (
& TBIT = 1,
& TBYTE = 11,
& TLOGICAL = 14,
& TSTRING = 16,
& TSHORT = 21,
& TINT = 31,
& TFLOAT = 42,
& TDOUBLE = 82,
& TCOMPLEX = 83,
& TDBLCOMPLEX = 163 )
C Codes for iterator column types
integer InputCol, InputOutputCol, OutputCol
parameter (
& InputCol = 0,
& InputOutputCol = 1,
& OutputCol = 2 )
C End of f77.inc -------------------------------------
status = 0
fname = 'iter_b.fit'
iunit = 15
C both columns are in the same FITS file
units(1) = iunit
units(2) = iunit
C open the file and move to the correct extension
call ftopen(iunit,fname,1,blocksize,status)
call ftmnhd(iunit, BINARY_TBL, 'iter_test', 0, status)
C define the desired columns by name
colname(1) = 'Avalue'
colname(2) = 'Lvalue'
C leave column numbers undefined
colnum(1) = 0
colnum(2) = 0
C define the desired datatype for each column: TSTRING & TLOGICAL
datatype(1) = TSTRING
datatype(2) = TLOGICAL
C define whether columns are input, input/output, or output only
C Both in/out
iotype(1) = InputOutputCol
iotype(2) = InputOutputCol
C use default optimum number of rows and process all the rows
rows_per_loop = 0
offset = 0
C apply the function to each row of the table
print *,'Calling iterator function...', status
call ftiter( ncols, units, colnum, colname, datatype, iotype,
& offset, rows_per_loop, str_iter, 0, status )
call ftclos(iunit, status)
C print out error messages if problem
if (status.ne.0) call ftrprt('STDERR', status)
stop
end
C--------------------------------------------------------------------------
C
C Sample iterator function.
C
C--------------------------------------------------------------------------
subroutine str_iter(totalrows, offset, firstrow, nrows, ncols,
& units, colnum, datatype, iotype, repeat, status,
& userData, stringCol, logicalCol )
integer totalrows,offset,firstrow,nrows,ncols,status
integer units(*),colnum(*),datatype(*),iotype(*),repeat(*)
integer userData
character*(*) stringCol(*)
logical logicalCol(*)
integer ii
C include f77.inc -------------------------------------
C Codes for FITS extension types
integer IMAGE_HDU, ASCII_TBL, BINARY_TBL
parameter (
& IMAGE_HDU = 0,
& ASCII_TBL = 1,
& BINARY_TBL = 2 )
C Codes for FITS table data types
integer TBIT,TBYTE,TLOGICAL,TSTRING,TSHORT,TINT
integer TFLOAT,TDOUBLE,TCOMPLEX,TDBLCOMPLEX
parameter (
& TBIT = 1,
& TBYTE = 11,
& TLOGICAL = 14,
& TSTRING = 16,
& TSHORT = 21,
& TINT = 31,
& TFLOAT = 42,
& TDOUBLE = 82,
& TCOMPLEX = 83,
& TDBLCOMPLEX = 163 )
C Codes for iterator column types
integer InputCol, InputOutputCol, OutputCol
parameter (
& InputCol = 0,
& InputOutputCol = 1,
& OutputCol = 2 )
C End of f77.inc -------------------------------------
if (status .ne. 0) return
C --------------------------------------------------------
C Initialization procedures: execute on the first call
C --------------------------------------------------------
if (firstrow .eq. 1) then
if (ncols .ne. 2) then
status = -1
return
endif
if (datatype(1).ne.TSTRING .or. datatype(2).ne.TLOGICAL) then
status = -2
return
endif
print *,'Total rows, No. rows = ',totalrows, nrows
endif
C -------------------------------------------
C Main loop: process all the rows of data
C -------------------------------------------
C NOTE: 1st element of array is the null pixel value!
C Loop over elements 2 to nrows+1, not 1 to nrows.
do 10 ii=2,nrows+1
print *, stringCol(ii), logicalCol(ii)
if( logicalCol(ii) ) then
logicalCol(ii) = .false.
stringCol(ii) = 'changed to false'
else
logicalCol(ii) = .true.
stringCol(ii) = 'changed to true'
endif
10 continue
C -------------------------------------------------------
C Clean up procedures: after processing all the rows
C -------------------------------------------------------
if (firstrow + nrows - 1 .eq. totalrows) then
C no action required in this case
endif
return
end