twisted.protocols.gps.nmea.NMEAReceiver

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

Class NMEAReceiver

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

This parses most common NMEA-0183 messages, presumably from a serial GPS device at 4800 bps

Method Summary
	`_decode_latlon(self, latitude, ns, longitude, ew)`
	`_decode_utc(self, utc)`
	`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)`
	`lineReceived(self, line)` Override this for when each line is received.
Inherited from LineReceiver
	`clearLineBuffer(self)` Clear buffered data.
	`dataReceived(self, data)` Protocol.dataReceived.
	`lineLengthExceeded(self, line)` Called when the maximum line length has been reached.
	`rawDataReceived(self, data)` Override this for when raw data is received.
	`sendLine(self, line)` Sends a line to the other end of the connection.
	`setLineMode(self, extra)` Sets the line-mode of this receiver.
	`setRawMode(self)` Sets the raw mode of this receiver.
Inherited from Protocol
	`connectionFailed(self)` (Deprecated)
	`connectionLost(self, reason)` Called when the connection is shut down.
Inherited from BaseProtocol
	`connectionMade(self)` Called when a connection is made.
	`makeConnection(self, transport)` Make a connection to a transport and a server.

Class Variable Summary
`int`	`convert_dates_before_y2k` = 1
`str`	`delimiter`: The line-ending delimiter to use.
`dict`	`dispatch` = `{'GPGSA': 'activesatellites', 'GPGRS': 'range...`
`int`	`ignore_checksum_mismatch` = 0
`int`	`ignore_invalid_sentence` = 1
`int`	`ignore_unknown_sentencetypes` = 0
Inherited from LineReceiver
`str`	`_LineReceiver__buffer` = `''`
`int`	`line_mode` = 1
`int`	`MAX_LENGTH`: The maximum length of a line to allow (If a sent line is longer than this, the connection is dropped).
Inherited from Protocol
`tuple`	`__implements__` = `(<class twisted.internet.interfaces.IPr...`
Inherited from BaseProtocol
`int`	`connected` = 0
`NoneType`	`transport` = None

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

The line-ending delimiter to use. By default this is '\r\n'.

Type:: str
Value:: '''\r '''

dispatch

Type:: dict
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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