mirror of https://github.com/ecmwf/eccodes.git
82 lines
2.3 KiB
Python
82 lines
2.3 KiB
Python
# (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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# Python implementation: bufr_copy_data
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#
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# Description: How to copy all the values in the data section that are present in the same
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# position in the data tree and with the same number of values to the output handle.
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# In this example we add the WIGOS sequence 301150 to a SYNOP
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#
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import sys
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import traceback
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from eccodes import *
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VERBOSE = 1 # verbose error reporting
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WIGOS_SEQ = 301150
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def example(input_filename, output_filename):
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f = open(input_filename, "rb")
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ibufrin = codes_bufr_new_from_file(f)
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f.close()
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codes_set(ibufrin, "unpack", 1)
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inUE = codes_get_array(ibufrin, "unexpandedDescriptors").tolist()
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nsubsets = 2
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ibufrout = codes_bufr_new_from_samples("BUFR4")
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# Update the unexpandedDescriptors to add the WIGOS data at the beginning
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outUE = inUE
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outUE.insert(0, WIGOS_SEQ)
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codes_set(ibufrout, "masterTablesVersionNumber", 28)
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codes_set(ibufrout, "numberOfSubsets", nsubsets)
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codes_set_array(ibufrout, "unexpandedDescriptors", outUE)
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# Some dummy WIGOS info
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for i in range(0, nsubsets):
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key = "#{0}#wigosIssuerOfIdentifier".format(i + 1)
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codes_set(ibufrout, key, (i + 1) * 3)
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# Copy across other data in input
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codes_bufr_copy_data(ibufrin, ibufrout)
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outfile = open(output_filename, "wb")
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codes_write(ibufrout, outfile)
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outfile.close()
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codes_release(ibufrin)
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codes_release(ibufrout)
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def main():
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if len(sys.argv) < 3:
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print("Usage: ", sys.argv[0], " bufr_in bufr_out", file=sys.stderr)
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return 1
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input_filename = sys.argv[1]
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output_filename = sys.argv[2]
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try:
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example(input_filename, output_filename)
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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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return 0
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if __name__ == "__main__":
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sys.exit(main())
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