def __init__(self, model, filename, mode='r', endian = '@', verbose=0):
self.model = model
# big endian is only for files calculated on Suns or HP
# otherwise use '<'
FortranBinaryFile.__init__(self, filename, mode, endian, verbose=verbose)
# dictionary of model properties, indexed with the
# standard variable names of the MARC manual D
self.Info = {}
self.dataFiles = [self]
self.findIncrements()
# read title and non incremental data
self._readBlock1()
self._readBlocks2to13()
def __readRecord(self, type=None):
"""Read a record from the binary file
If the type is non-standard, a special interpretation of the
record is invoked
"""
record = FortranBinaryFile.readRecord(self, type)
if record[0] <> None:
return record
else:
# special record types
record = record[1]
if type == 'c4':
lr = len(record)/4
rr = ''
for i in range(lr):
rr = rr+(struct.unpack(self.endian+'c', record[i*4]))[0]
return rr
elif type == 'postcode':
id = (struct.unpack(self.endian+'i', record[0:4]))[0]
record = record[4:]
lr = len(record)/4
rr = ''
for i in range(lr):
rr = rr+(struct.unpack(self.endian+'c', record[i*4]))[0]
return id, rr
elif type == 'coord':
id = (struct.unpack(self.endian+'i', record[0:4]))[0]
record = record[4:]
rr = self.fromstring(record, 'f')
return id, rr
