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<title>grib_api: multi_fortran.F</title>
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<h1>multi_fortran.F</h1>multi_fortran.F How to decode a grib message containing many fields.<p>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 C Copyright 2005-2016 ECMWF
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<a name="l00002"></a>00002 C This software is licensed under the terms of the Apache Licence Version 2.0
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<a name="l00003"></a>00003 C which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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<a name="l00004"></a>00004 C
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<a name="l00005"></a>00005 C In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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<a name="l00006"></a>00006 C virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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<a name="l00007"></a>00007 C
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<a name="l00008"></a>00008 C
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<a name="l00009"></a>00009 C Fortran 77 Implementation: multi_fortran
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<a name="l00010"></a>00010 C
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<a name="l00011"></a>00011 C Description: How to decode grib messages containing multiple
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<a name="l00012"></a>00012 C fields. Try to turn on and off multi support to
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<a name="l00013"></a>00013 C see the difference. Default is OFF.
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<a name="l00014"></a>00014 C For all the tools defalut is multi support ON.
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<a name="l00015"></a>00015 C
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<a name="l00016"></a>00016 C
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<a name="l00017"></a>00017 C Author: Enrico Fucile
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<a name="l00018"></a>00018 C
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<a name="l00019"></a>00019 C
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<a name="l00020"></a>00020 C
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<a name="l00021"></a>00021 program multi
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<a name="l00022"></a>00022 implicit none
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<a name="l00023"></a>00023 include 'grib_api_f77.h'
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<a name="l00024"></a>00024 integer iret
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<a name="l00025"></a>00025 character*256 error
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<a name="l00026"></a>00026 integer*4 parameterCategory,parameterNumber,discipline
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<a name="l00027"></a>00027 integer ifile,igrib
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<a name="l00028"></a>00028
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<a name="l00029"></a>00029 call grib_check( grib_open_file(ifile
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<a name="l00030"></a>00030 X,'../../data/multi.grib2<span class="charliteral">','</span>r'))
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<a name="l00031"></a>00031
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<a name="l00032"></a>00032 C turn on support for multi fields messages */
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<a name="l00033"></a>00033 call grib_check(<a name="a0"></a><a class="code" href="group__context.html#g3266536e68ebb6d4bbc4a22b29f0e8ea" title="Turn on support for multiple fields in single grib messages.">grib_multi_support_on</a>())
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<a name="l00034"></a>00034
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<a name="l00035"></a>00035 C turn off support for multi fields messages */
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<a name="l00036"></a>00036 C call grib_check(<a name="a1"></a><a class="code" href="group__context.html#gc022270a99922ccc57147670ed2a58d4" title="Turn off support for multiple fields in single grib messages.">grib_multi_support_off</a>())
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<a name="l00037"></a>00037
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<a name="l00038"></a>00038 C Loop on all the messages in a file.
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<a name="l00039"></a>00039 10 iret=grib_new_from_file(ifile,igrib)
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<a name="l00040"></a>00040 if (igrib .eq. -1 ) then
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<a name="l00041"></a>00041 if (iret .ne.0) then
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<a name="l00042"></a>00042 call grib_check(iret)
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<a name="l00043"></a>00043 endif
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<a name="l00044"></a>00044 stop
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<a name="l00045"></a>00045 endif
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<a name="l00046"></a>00046
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<a name="l00047"></a>00047 C get as a integer*4
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<a name="l00048"></a>00048 call grib_check(grib_get_int(igrib,'discipline',discipline))
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<a name="l00049"></a>00049 write(*,*) 'discipline=',discipline
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<a name="l00050"></a>00050
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<a name="l00051"></a>00051 C get as a integer*4
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<a name="l00052"></a>00052 call grib_check(grib_get_int(igrib,'parameterCategory'
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<a name="l00053"></a>00053 X,parameterCategory))
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<a name="l00054"></a>00054 write(*,*) 'parameterCategory=',parameterCategory
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<a name="l00055"></a>00055
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<a name="l00056"></a>00056 C get as a integer*4
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<a name="l00057"></a>00057 call grib_check(grib_get_int(igrib,'parameterNumber'
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<a name="l00058"></a>00058 X,parameterNumber))
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<a name="l00059"></a>00059 write(*,*) 'parameterNumber=',parameterNumber
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<a name="l00060"></a>00060
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<a name="l00061"></a>00061 if ( discipline .eq. 0 .and. parameterCategory .eq. 2) then
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<a name="l00062"></a>00062 if (parameterNumber .eq. 2) then
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<a name="l00063"></a>00063 write(*,*) "-------- u -------"
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<a name="l00064"></a>00064 endif
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<a name="l00065"></a>00065 if (parameterNumber .eq. 3) then
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<a name="l00066"></a>00066 write(*,*) "-------- v -------"
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<a name="l00067"></a>00067 endif
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<a name="l00068"></a>00068 endif
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<a name="l00069"></a>00069
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<a name="l00070"></a>00070 goto 10
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<a name="l00071"></a>00071
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<a name="l00072"></a>00072 call grib_check(grib_release(igrib))
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<a name="l00073"></a>00073
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<a name="l00074"></a>00074 call grib_check(grib_close_file(ifile))
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<a name="l00075"></a>00075
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<a name="l00076"></a>00076 end
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<a name="l00077"></a>00077
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</pre></div> <hr size="1"><address style="text-align: right;"><small>Generated on Tue Sep 22 15:18:21 2009 for grib_api by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address>
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