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! (C) Copyright 2005- ECMWF.
!
! This software is licensed under the terms of the Apache Licence Version 2.0
! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
!
! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
!
!
!
! Description: Set the data contained in a GRIB file.
! In this example no missing values are present.
! If there are missing values, refer to: grib_set_bitmap
!
program set_data
use eccodes
implicit none
integer :: outfile
integer :: i, igrib, iret, numberOfValues, cnt
real :: d, e
real, dimension(:), allocatable :: values
integer, parameter :: max_strsize = 200
character(len=max_strsize) :: outfile_name
call getarg(1, outfile_name)
call codes_open_file(outfile, outfile_name, 'w')
! note: the full name of the sample file is "regular_ll_pl_grib1.tmpl"
! sample files are stored in the samples directory (use codes_info to
! see where that is). The default sample path can be changed by
! setting the environment variable ECCODES_SAMPLES_PATH
call codes_grib_new_from_samples(igrib, 'regular_ll_pl_grib1')
! here we're changing the data values only, so the number of values
! will be the same as the sample GRIB.
! but if your data array has a different size, then specify the grid geometry
! (e.g. keys Ni, Nj etc) and set the correct number of data values
call codes_get_size(igrib, 'values', numberOfValues)
allocate (values(numberOfValues), stat=iret)
d = 10e-8
e = d
cnt = 1
do i = 1, numberOfValues
if (cnt > 100) then
e = e*10
cnt = 1
end if
values(i) = d
!print *, values(i)
d = d + e
cnt = cnt + 1
end do
call codes_set(igrib, 'bitsPerValue', 16)
! set data values
call codes_set(igrib, 'values', values)
call codes_write(igrib, outfile)
call codes_release(igrib)
deallocate (values)
end program set_data
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