2017-01-03 11:03:48 +00:00
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! Copyright 2005-2017 ECMWF.
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2016-11-21 15:15:28 +00:00
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!
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! This software is licensed under the terms of the Apache Licence Version 2.0
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! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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!
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! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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!
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!
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!
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! Description: set the data contained in a GRIB file.
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! In this example no missing values are present.
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! If there are missing values, refer to: grib_set_bitmap
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!
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program set_data
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use eccodes
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implicit none
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integer :: outfile
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integer :: i, igrib, iret, numberOfValues, cnt
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real :: d, e
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real, dimension(:), allocatable :: values
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integer, parameter :: max_strsize = 200
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character(len=max_strsize) :: outfile_name
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call getarg(1, outfile_name)
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call codes_open_file(outfile,outfile_name,'w')
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! Note: the full name of the sample file is "regular_ll_pl_grib1.tmpl"
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! Sample files are stored in the samples directory (use codes_info to
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! see where that is). The default sample path can be changed by
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! setting the environment variable ECCODES_SAMPLES_PATH
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call codes_grib_new_from_samples(igrib, 'regular_ll_pl_grib1')
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! Here we're changing the data values only, so the number of values
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! will be the same as the sample GRIB.
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! But if your data array has a different size, then specify the grid geometry
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! (e.g. keys Ni, Nj etc) and set the correct number of data values
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call codes_get_size(igrib,'values',numberOfValues)
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allocate(values(numberOfValues), stat=iret)
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d = 10e-8
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e = d
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cnt = 1
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do i=1,numberOfValues
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if (cnt>100) then
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e = e*10
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cnt=1
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endif
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values(i) = d
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!print *, values(i)
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d = d + e
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cnt = cnt + 1
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end do
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call codes_set(igrib, 'bitsPerValue', 16)
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! set data values
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call codes_set(igrib,'values', values)
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call codes_write(igrib,outfile)
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call codes_release(igrib)
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deallocate(values)
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end program set_data
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