eccodes/examples/python/set_pv.py

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2013-03-25 12:04:10 +00:00
import traceback
import sys
from gribapi import *
VERBOSE=1 # verbose error reporting
def example():
"""
Encoding of the pv coefficients.
"""
# read the coefficients from file
pv = []
for line in open('../../data/60_model_levels'):
pv.extend([float(x) for x in line.strip().split('\t')])
numberOfLevels = 60
numberOfCoefficients = 2 * (numberOfLevels + 1)
assert(len(pv) == numberOfCoefficients)
fout = open('out.grib1','w')
gid = grib_new_from_samples('reduced_gg_sfc_grib1')
grib_set(gid,'typeOfLevel','hybrid')
grib_set(gid,'level',2)
grib_set(gid,'PVPresent',1)
grib_set_array(gid,'pv',pv)
grib_write(gid,fout)
grib_release(gid)
fout.close()
def main():
try:
example()
except GribInternalError,err:
if VERBOSE:
traceback.print_exc(file=sys.stderr)
else:
print >>sys.stderr,err.msg
return 1
if __name__ == '__main__':
sys.exit(main())