2015-01-05 15:45:46 +00:00
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! Copyright 2005-2015 ECMWF.
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2013-03-25 12:04:10 +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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! Description: How to decode grib messages containing multiple
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! fields. Try to turn on and off multi support to
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! see the difference. Default is OFF.
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! For all the tools default is multi support ON.
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!
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!
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program multi
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2015-01-28 22:54:42 +00:00
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use eccodes
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implicit none
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integer :: iret
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character(len = 256) :: error
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integer(kind = 4) :: parameterCategory,parameterNumber,discipline
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integer :: ifile,igrib
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2015-01-07 16:11:28 +00:00
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call codes_open_file(ifile, &
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'../../data/multi.grib2','r')
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! turn on support for multi fields messages */
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2015-01-07 16:11:28 +00:00
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call codes_multi_support_on()
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2013-03-25 12:04:10 +00:00
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! turn off support for multi fields messages */
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2015-01-07 16:11:28 +00:00
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! call codes_multi_support_off()
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2013-03-25 12:04:10 +00:00
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2015-01-07 16:11:28 +00:00
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call codes_new_from_file(ifile,igrib)
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2013-03-25 12:04:10 +00:00
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! Loop on all the messages in a file.
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do while (igrib .ne. -1)
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! get as a integer*4
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call codes_get(igrib,'discipline',discipline)
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write(*,*) 'discipline=',discipline
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! get as a integer*4
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call codes_get(igrib,'parameterCategory', &
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parameterCategory)
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write(*,*) 'parameterCategory=',parameterCategory
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! get as a integer*4
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call codes_get(igrib,'parameterNumber', &
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parameterNumber)
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write(*,*) 'parameterNumber=',parameterNumber
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if ( discipline .eq. 0 .and. parameterCategory .eq. 2) then
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if (parameterNumber .eq. 2) then
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write(*,*) "-------- u -------"
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endif
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if (parameterNumber .eq. 3) then
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write(*,*) "-------- v -------"
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endif
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endif
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2015-01-07 16:11:28 +00:00
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call codes_release(igrib)
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call codes_new_from_file(ifile,igrib, iret)
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end do
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call codes_close_file(ifile)
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end program multi
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