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<title>grib_api: get_fortran.F</title>
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<h1>get_fortran.F</h1>get_fortran.F How to get values through the key names.<p>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 C Copyright 2005-2014 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 Fortran 77 Implementation: get_fortran
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<a name="l00009"></a>00009 C
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<a name="l00010"></a>00010 C Description: how to <span class="keyword">get</span> values <span class="keyword">using</span> keys.
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<a name="l00011"></a>00011 C
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<a name="l00012"></a>00012 C Author: Enrico Fucile
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<a name="l00013"></a>00013 C
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<a name="l00014"></a>00014 C
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<a name="l00015"></a>00015 C
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<a name="l00016"></a>00016 program <span class="keyword">get</span>
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<a name="l00017"></a>00017 implicit none
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<a name="l00018"></a>00018 integer maxNumberOfValues
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<a name="l00019"></a>00019 parameter( maxNumberOfValues = 10000 )
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<a name="l00020"></a>00020 include 'grib_api_f77.h'
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<a name="l00021"></a>00021 integer ifile
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<a name="l00022"></a>00022 integer iret
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<a name="l00023"></a>00023 integer igrib
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<a name="l00024"></a>00024 integer i
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<a name="l00025"></a>00025 real*8 latitudeOfFirstPointInDegrees
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<a name="l00026"></a>00026 real*8 longitudeOfFirstPointInDegrees
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<a name="l00027"></a>00027 real*8 latitudeOfLastPointInDegrees
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<a name="l00028"></a>00028 real*8 longitudeOfLastPointInDegrees
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<a name="l00029"></a>00029 real*8 jDirectionIncrementInDegrees
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<a name="l00030"></a>00030 real*8 iDirectionIncrementInDegrees
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<a name="l00031"></a>00031 integer*4 numberOfPointsAlongAParallel
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<a name="l00032"></a>00032 integer*4 numberOfPointsAlongAMeridian
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<a name="l00033"></a>00033 real*8 values(maxNumberOfValues)
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<a name="l00034"></a>00034 integer*4 numberOfValues
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<a name="l00035"></a>00035 real*8 average
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<a name="l00036"></a>00036 character*256 error
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<a name="l00037"></a>00037 integer*4 size
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<a name="l00038"></a>00038
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<a name="l00039"></a>00039 size=maxNumberOfValues
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<a name="l00040"></a>00040 ifile=5
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<a name="l00041"></a>00041
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<a name="l00042"></a>00042 iret=grib_open_file(ifile
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<a name="l00043"></a>00043 X,'../../data/regular_latlon_surface.grib1','r')
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<a name="l00044"></a>00044 call grib_check(iret)
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<a name="l00045"></a>00045
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<a name="l00046"></a>00046 C a new grib message is loaded from file
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<a name="l00047"></a>00047 C igrib is the grib <span class="keywordtype">id</span> to be used in subsequent calls
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<a name="l00048"></a>00048 call grib_check( grib_new_from_file(ifile,igrib) )
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<a name="l00049"></a>00049
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<a name="l00050"></a>00050 C get as a integer
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<a name="l00051"></a>00051 call grib_check(grib_get_int(igrib,'numberOfPointsAlongAParallel'
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<a name="l00052"></a>00052 X,numberOfPointsAlongAParallel) )
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<a name="l00053"></a>00053 write(*,*) 'numberOfPointsAlongAParallel='
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<a name="l00054"></a>00054 X,numberOfPointsAlongAParallel
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<a name="l00055"></a>00055
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<a name="l00056"></a>00056 C get as a integer
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<a name="l00057"></a>00057 call grib_check( grib_get_int(igrib,'numberOfPointsAlongAMeridian'
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<a name="l00058"></a>00058 X,numberOfPointsAlongAMeridian) )
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<a name="l00059"></a>00059 write(*,*) 'numberOfPointsAlongAMeridian='
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<a name="l00060"></a>00060 X,numberOfPointsAlongAMeridian
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<a name="l00061"></a>00061
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<a name="l00062"></a>00062 C get as a real8
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<a name="l00063"></a>00063 call grib_check( grib_get_real8(igrib
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<a name="l00064"></a>00064 X,'latitudeOfFirstGridPointInDegrees'
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<a name="l00065"></a>00065 X,latitudeOfFirstPointInDegrees) )
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<a name="l00066"></a>00066 write(*,*) 'latitudeOfFirstGridPointInDegrees='
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<a name="l00067"></a>00067 X,latitudeOfFirstPointInDegrees
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<a name="l00068"></a>00068
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<a name="l00069"></a>00069 C get as a real8
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<a name="l00070"></a>00070 call grib_check( grib_get_real8(igrib
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<a name="l00071"></a>00071 X,'longitudeOfFirstGridPointInDegrees'
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<a name="l00072"></a>00072 X,longitudeOfFirstPointInDegrees) )
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<a name="l00073"></a>00073 write(*,*) 'longitudeOfFirstGridPointInDegrees='
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<a name="l00074"></a>00074 X,longitudeOfFirstPointInDegrees
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<a name="l00075"></a>00075
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<a name="l00076"></a>00076 C get as a real8
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<a name="l00077"></a>00077 call grib_check( grib_get_real8(igrib
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<a name="l00078"></a>00078 X,'latitudeOfLastGridPointInDegrees'
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<a name="l00079"></a>00079 X,latitudeOfLastPointInDegrees) )
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<a name="l00080"></a>00080 write(*,*) 'latitudeOfLastGridPointInDegrees='
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<a name="l00081"></a>00081 X,latitudeOfLastPointInDegrees
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<a name="l00082"></a>00082
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<a name="l00083"></a>00083 C get as a real8
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<a name="l00084"></a>00084 call grib_check( grib_get_real8(igrib
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<a name="l00085"></a>00085 X,'longitudeOfLastGridPointInDegrees'
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<a name="l00086"></a>00086 X,longitudeOfLastPointInDegrees) )
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<a name="l00087"></a>00087 write(*,*) 'longitudeOfLastGridPointInDegrees='
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<a name="l00088"></a>00088 X,longitudeOfLastPointInDegrees
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<a name="l00089"></a>00089
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<a name="l00090"></a>00090 C get as a real8
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<a name="l00091"></a>00091 call grib_check( grib_get_real8(igrib
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<a name="l00092"></a>00092 X,'jDirectionIncrementInDegrees'
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<a name="l00093"></a>00093 X,jDirectionIncrementInDegrees) )
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<a name="l00094"></a>00094 write(*,*) 'jDirectionIncrementInDegrees='
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<a name="l00095"></a>00095 X,jDirectionIncrementInDegrees
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<a name="l00096"></a>00096
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<a name="l00097"></a>00097 C get as a real8
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<a name="l00098"></a>00098 call grib_check( grib_get_real8(igrib
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<a name="l00099"></a>00099 X,'iDirectionIncrementInDegrees'
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<a name="l00100"></a>00100 X,iDirectionIncrementInDegrees) )
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<a name="l00101"></a>00101 write(*,*) 'iDirectionIncrementInDegrees='
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<a name="l00102"></a>00102 X,iDirectionIncrementInDegrees
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<a name="l00103"></a>00103
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<a name="l00104"></a>00104 C get the size of the values array
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<a name="l00105"></a>00105 call grib_check(<a name="a0"></a><a class="code" href="group__get__set.html#g18b622ed86b24d5e5fcab70c309fc245" title="Get the number of coded value from a key, if several keys of the same name are present...">grib_get_size</a>(igrib,'values',numberOfValues))
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<a name="l00106"></a>00106 write(*,*) 'numberOfValues=',numberOfValues
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<a name="l00107"></a>00107
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<a name="l00108"></a>00108 C get data values
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<a name="l00109"></a>00109 call grib_check(grib_get_real8_array(igrib,'values',values,size))
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<a name="l00110"></a>00110 if ( size .ne. numberOfValues ) then
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<a name="l00111"></a>00111 write(*,*) 'ERROR: wrong numberOfValues'
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<a name="l00112"></a>00112 stop
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<a name="l00113"></a>00113 endif
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<a name="l00114"></a>00114
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<a name="l00115"></a>00115 average = 0
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<a name="l00116"></a>00116 do i=1,numberOfValues
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<a name="l00117"></a>00117 average = average + values(i);
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<a name="l00118"></a>00118 enddo
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<a name="l00119"></a>00119
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<a name="l00120"></a>00120 average =average / numberOfValues
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<a name="l00121"></a>00121
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<a name="l00122"></a>00122 write(*,*)'There are ',numberOfValues
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<a name="l00123"></a>00123 X,' average is ',average
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<a name="l00124"></a>00124
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<a name="l00125"></a>00125 call grib_check(grib_release(igrib))
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<a name="l00126"></a>00126
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<a name="l00127"></a>00127 call grib_check(grib_close_file(ifile))
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<a name="l00128"></a>00128
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<a name="l00129"></a>00129 end
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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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