mirror of https://github.com/ecmwf/eccodes.git
84 lines
1.9 KiB
Python
Executable File
84 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python
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import sys
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from gribapi import *
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from array import array
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import random
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import traceback
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import itertools
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VERBOSE=1
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WRITE=0
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class Usage(Exception):
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def __init__(self):
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pass
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def product(*args, **kwds):
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# product('ABCD', 'xy') --> Ax Ay Bx By Cx Cy Dx Dy
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# product(range(2), repeat=3) --> 000 001 010 011 100 101 110 111
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pools = map(tuple, args) * kwds.get('repeat', 1)
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result = [[]]
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for pool in pools:
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result = [x+[y] for x in result for y in pool]
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for prod in result:
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yield tuple(prod)
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def test():
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# test new from sample
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#grib_release(grib_new_from_samples("GRIB2"))
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if len(sys.argv) < 2:
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raise Usage
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infile = sys.argv[1]
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index_keys = ["shortName","level","number","step"]
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print "indexing..."
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iid = grib_index_new_from_file(infile,index_keys)
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print "end indexing..."
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index_vals = []
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for key in index_keys:
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print "%sSize=%d" % (
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key,
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grib_index_get_size(iid,key)
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)
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key_vals = grib_index_get_string(iid,key)
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print " ".join(key_vals)
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index_vals.append(key_vals)
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for prod in product(*index_vals):
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for i in range(len(index_keys)):
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grib_index_select_string(iid,index_keys[i],str(prod[i]))
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while 1:
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gid = grib_new_from_index(iid)
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if gid is None: break
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print " ".join(["%s=%s" % (key,grib_get_string(gid,key)) for key in index_keys])
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grib_release(gid)
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grib_index_release(iid)
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def main():
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try:
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test()
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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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except Usage:
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print "Usage: %s infile" % sys.argv[0]
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sys.exit(2)
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if __name__ == "__main__":
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main()
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#print "------------------------------------"
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