mirror of https://github.com/ecmwf/eccodes.git
52 lines
1.5 KiB
Fortran
52 lines
1.5 KiB
Fortran
! Copyright 2005-2015 ECMWF.
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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: how to create a multi field message in memory and write
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! it in a file. The multi field messages can be created
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! only in grib edition 2.
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!
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!
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!
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program multi_write
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use grib_api
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implicit none
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integer :: infile,outfile
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integer :: in_gribid,iret
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integer :: multi_gribid
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integer :: step,startsection
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! multi field messages can be created only in edition 2
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call codes_open_file(infile,'../../data/sample.grib2','r')
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call codes_open_file(outfile,'multi_created.grib2','w')
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! a grib message is loaded from file
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! in_gribid is the grib id to be used in subsequent calls
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call codes_new_from_file(infile,in_gribid)
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startsection=4
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do step=0,240,12
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call codes_set(in_gribid,"step",step)
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call codes_multi_append(in_gribid,startsection,multi_gribid)
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enddo
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! write messages to a file
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call codes_multi_write(multi_gribid,outfile)
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call codes_release(in_gribid)
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call codes_release(multi_gribid)
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call codes_close_file(infile)
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call codes_close_file(outfile)
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end program multi_write
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