def noaawaterlevel2aisMsg8Nmea(stationID,
mmsi,
datum,
wl,
verbose=False,
debug=False):
'''
Return one long NMEA string. This will be oversized for the nmea spec.
'''
#print 'noaawaterlevel2aisMsg8Nmea\n ',wl
payloadBits = noaawaterlevel2aisBits(stationID,
mmsi=mmsi,
datum=datum,
wl=wl,
verbose=verbose,
debug=debug)
nmeaStr = buildNmea(payloadBits)
ts = wl.timeStamp
fields = ts.split()
yr, mo, da = fields[0].split('-')
hr, mi, sec = fields[1].split(':')
sec = sec.split('.')[0]
if sec[0] == '0': sec = sec[1:]
timestamp = calendar.timegm(
(int(yr), int(mo), int(da), int(hr), int(mi), int(sec)))
nmeaStr += ',r' + str(mmsi) + ',' + str(timestamp)
return nmeaStr
def noaawaterlevel2aisMsg8Nmea(stationID,mmsi,verbose=False,debug=False):
'''
Return one long NMEA string. This will be oversized for the nmea spec.
'''
payloadBits = noaawaterlevel2aisBits(stationID,mmsi=mmsi,verbose=verbose,debug=debug)
#params = {}
#params['MessageID'] = 8
#params['RepeatIndicator'] = 1
#params['UserID'] = int(mmsi)
#params['Spare'] = 0
#params['BinaryData'] = payloadBits
#msg8bits = msg8_ais.encode(params)
#nmeaStr = buildNmea(msg8bits)
nmeaStr = buildNmea(payloadBits)
bbmPayloadBitsNoPad = payloadBits[40:]
print 'lenpayload',len(bbmPayloadBitsNoPad)
# padLen=6 - (len(bbmPayloadBitsNoPad)%6)
# if 0!= padLen:
# pad = BitVector( bitlist = [0,]*padLen )
# bbmPayloadBits = bbmPayloadBitsNoPad + pad
# else:
# bbmPayloadBits = bbmPayloadBitsNoPad
print bbmPayloadBitsNoPad
bbmPayloadStr,padLen = ais.binary.bitvectoais6(bbmPayloadBitsNoPad)
print bbmPayloadBitsNoPad
print ais.binary.ais6
print 'pad len',padLen
bbmStr = ais.nmea.bbmEncode(1 # totSent=
,1 # sentNum=
,0 # seqId=
,3 # aisChan=
,8 # MsgId
, bbmPayloadStr #bbmPayloadBits # data=
,padLen # numFillBits=
)
s = bbmStr[1:-3]
print bbmStr
print s
sum=0
for c in s: sum = sum ^ ord(c)
sumHex= "%x" % sum
print 'checksum should be:', sumHex.upper()
return nmeaStr,bbmStr
def noaawaterlevel2aisMsg8Nmea(stationID,mmsi,datum,wl,verbose=False,debug=False):
'''
Return one long NMEA string. This will be oversized for the nmea spec.
'''
payloadBits = noaawaterlevel2aisBits(stationID,mmsi=mmsi,datum=datum,wl=wl,verbose=verbose,debug=debug)
nmeaStr = buildNmea(payloadBits)
ts=wl.timeStamp
fields = ts.split()
yr,mo,da=fields[0].split('-')
hr,mi,sec = fields[1].split(':')
sec=sec.split('.')[0]
if sec[0]=='0': sec=sec[1:]
timestamp = calendar.timegm((int(yr),int(mo),int(da),int(hr),int(mi),int(sec)))
nmeaStr += ',r'+str(mmsi)+','+str(timestamp)
return nmeaStr