mirror of https://github.com/ecmwf/eccodes.git
73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
# Copyright 2005-2014 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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import traceback
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import sys
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from gribapi import *
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from datetime import date
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INPUT='../../data/regular_latlon_surface_constant.grib1'
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OUTPUT='out.grib'
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VERBOSE=1 # verbose error reporting
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def example():
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fin = open(INPUT)
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fout = open(OUTPUT,'w')
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gid = grib_new_from_file(fin)
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dt = date.today()
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today = "%d%02d%02d" % (dt.year,dt.month,dt.day)
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grib_set(gid,'dataDate',int(today))
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grib_set(gid,'centre',80)
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centreIntVal = grib_get(gid,'centre',int)
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centreStrVal = grib_get(gid,'centre',str)
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dateStrVal = grib_get(gid,'dataDate',str)
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assert(centreIntVal == 80)
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assert(centreStrVal == 'cnmc')
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assert(dateStrVal == today)
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print 'get centre as an integer - centre = %d' % centreIntVal
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print 'get centre as a string - centre = %s' % centreStrVal
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print 'get date as a string - date = %s' % dateStrVal
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# Now do the same but using set_key_vals, setting keys all at once
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grib_set_key_vals(gid, 'level=1,centre=98') # with a String
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assert(grib_get(gid,'centre',str) == 'ecmf')
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assert(grib_get(gid,'level',int) == 1)
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grib_set_key_vals(gid, ['level=2', 'centre=kwbc']) # with a Tuple
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assert(grib_get(gid,'centre',int) == 7)
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assert(grib_get(gid,'level',int) == 2)
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grib_set_key_vals(gid, {'level': 3, 'centre': 84}) # with a Dictionary
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assert(grib_get(gid,'centre',str) == 'lfpw')
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assert(grib_get(gid,'level',int) == 3)
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grib_gts_header(True)
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grib_gts_header(False)
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grib_write(gid,fout)
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grib_release(gid)
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fin.close()
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fout.close()
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def main():
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try:
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example()
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except GribInternalError,err:
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if VERBOSE:
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traceback.print_exc(file=sys.stderr)
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else:
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print >>sys.stderr,err.msg
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return 1
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if __name__ == "__main__":
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sys.exit(main())
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