Package twisted :: Package protocols :: Package gps :: Module nmea :: Class NMEAReceiver
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Class NMEAReceiver

BaseProtocol --+        
               |        
        Protocol --+    
                   |    
        LineReceiver --+
                       |
                      NMEAReceiver


This parses most common NMEA-0183 messages, presumably from a serial GPS device at 4800 bps
Method Summary
  connectionFailed(self)
(Deprecated) (inherited from Protocol)
  connectionLost(self, reason)
Called when the connection is shut down. (inherited from Protocol)
  dataReceived(self, data)
Protocol.dataReceived. (inherited from LineReceiver)
  decode_activesatellites(self, mode1, mode2, *args)
  decode_fix(self, utc, latitude, ns, longitude, ew, posfix, satellites, hdop, altitude, altitude_units, geoid_separation, geoid_separation_units, dgps_age, dgps_station_id)
  decode_position(self, latitude, ns, longitude, ew, utc, status)
  decode_positiontime(self, utc, status, latitude, ns, longitude, ew, speed, course, utcdate, magvar, magdir)
  lineLengthExceeded(self, line)
Called when the maximum line length has been reached. (inherited from LineReceiver)
  lineReceived(self, line)
Override this for when each line is received.
  rawDataReceived(self, data)
Override this for when raw data is received. (inherited from LineReceiver)
  sendLine(self, line)
Sends a line to the other end of the connection. (inherited from LineReceiver)
  setLineMode(self, extra)
Sets the line-mode of this receiver. (inherited from LineReceiver)
  setRawMode(self)
Sets the raw mode of this receiver. (inherited from LineReceiver)

Class Variable Summary
int convert_dates_before_y2k
string delimiter
dictionary dispatch
int ignore_checksum_mismatch
int ignore_invalid_sentence
int ignore_unknown_sentencetypes

Method Details

lineReceived(self, line)

Override this for when each line is received.
Overrides:
twisted.protocols.basic.LineReceiver.lineReceived (inherited documentation)

Class Variable Details

convert_dates_before_y2k

Type:
int
Value:
1                                                                      

delimiter

Type:
string
Value:
'''\r
'''                                                                    

dispatch

Type:
dictionary
Value:
{'GPALM': 'almanac',
 'GPGGA': 'fix',
 'GPGLL': 'position',
 'GPGRS': 'range',
 'GPGSA': 'activesatellites',
 'GPGST': 'noise',
 'GPGSV': 'viewsatellites',
 'GPMSS': 'beacon',
...                                                                    

ignore_checksum_mismatch

Type:
int
Value:
0                                                                      

ignore_invalid_sentence

Type:
int
Value:
1                                                                      

ignore_unknown_sentencetypes

Type:
int
Value:
0                                                                      

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