mirror of https://github.com/ecmwf/eccodes.git
65 lines
1.4 KiB
Python
65 lines
1.4 KiB
Python
#
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# (C) Copyright 2005- 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
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# granted to it by virtue of its status as an intergovernmental organisation
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# 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 eccodes import *
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INPUT = '../../data/constant_field.grib1'
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OUTPUT = 'out.clone.grib'
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VERBOSE = 1 # verbose error reporting
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def example():
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fin = open(INPUT, 'rb')
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fout = open(OUTPUT, 'wb')
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gid = codes_grib_new_from_file(fin)
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assert codes_is_missing(gid, 'Ni') == False
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assert codes_is_missing(gid, 'Nj') == False
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nx = codes_get(gid, 'Ni')
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ny = codes_get(gid, 'Nj')
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for step in range(0, 24, 6):
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clone_id = codes_clone(gid)
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codes_set(clone_id, 'step', step)
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values = [random.random() for i in range(nx * ny)]
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codes_set_values(clone_id, values)
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codes_write(clone_id, fout)
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codes_release(clone_id)
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codes_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 CodesInternalError as 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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sys.stderr.write(err.msg + '\n')
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return 1
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if __name__ == "__main__":
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sys.exit(main())
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