mirror of https://github.com/ecmwf/eccodes.git
59 lines
1.3 KiB
Python
59 lines
1.3 KiB
Python
#
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# 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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import traceback
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import sys
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import random
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from gribapi import *
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INPUT='../../data/constant_field.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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nx = grib_get(gid,'Ni')
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ny = grib_get(gid,'Nj')
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for step in range(0,24,6):
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clone_id = grib_clone(gid)
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grib_set(clone_id,'step',step)
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values = [random.random() for i in range(nx*ny)]
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grib_set_values(clone_id,values)
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grib_write(clone_id,fout)
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grib_release(clone_id)
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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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