eccodes/examples/python/set_missing.py

55 lines
1.4 KiB
Python

#
# Copyright 2005-2015 ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
#
# In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
# virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
#
import traceback
import sys
from eccodes import *
INPUT='../../data/tigge/tigge_ecmf_pl_t.grib'
OUTPUT='out.set_missing.grib'
VERBOSE=1 # verbose error reporting
def example():
fin = open(INPUT)
fout = open(OUTPUT,'w')
gid = codes_grib_new_from_file(fin)
codes_set_long(gid, "scaledValueOfFirstFixedSurface", 15);
codes_set_long(gid, "scaleFactorOfFirstFixedSurface", 1)
level=codes_get_double(gid, "level")
assert( level == 1.5 )
# set type of level to surface
codes_set(gid,'typeOfFirstFixedSurface','sfc')
codes_set_missing(gid,'scaleFactorOfFirstFixedSurface')
codes_set_missing(gid,'scaledValueOfFirstFixedSurface')
codes_write(gid,fout)
codes_release(gid)
fin.close()
fout.close()
def main():
try:
example()
except CodesInternalError,err:
if VERBOSE:
traceback.print_exc(file=sys.stderr)
else:
print >>sys.stderr,err.msg
return 1
if __name__ == "__main__":
sys.exit(main())