app.streambundle.getAvailablePaths();
Returns
[
"navigation.speedOverGround",
"navigation.courseOverGroundTrue",
"navigation.courseGreatCircle.nextPoint.position",
"navigation.position",
"navigation.gnss.antennaAltitude",
"navigation.gnss.satellites",
"navigation.gnss.horizontalDilution",
"navigation.gnss.positionDilution",
"navigation.gnss.geoidalSeparation",
"navigation.gnss.type","navigation.gnss.methodQuality",
"navigation.gnss.integrity",
"navigation.magneticVariation",
]
Get a Bacon JS 1.0 stream for a Signal K path that will stream values from any context.
Stream values are objects with the following structure:
{
path: ...,
value: ...,
context: ...,
source: ...,
$source: ...,
timestamp: ...
}
Optionalpath: PathIf it is not provided the returned stream produces values for all paths.
app.streambundle
.getBus('navigation.position')
.onValue(pos => app.debug(pos));
/* output
{
path: 'navigation.position',
value: { longitude: 24.7366117, latitude: 59.72493 },
context: 'vessels.urn:mrn:imo:mmsi:2766160',
source: {
label: 'n2k-sample-data',
type: 'NMEA2000',
pgn: 129039,
src: '43'
},
'$source': 'n2k-sample-data.43',
timestamp: '2014-08-15T19:00:02.392Z'
}
{
path: 'navigation.position',
value: { longitude: 24.82365, latitude: 58.159598 },
context: 'vessels.urn:mrn:imo:mmsi:2766140',
source: {
label: 'n2k-sample-data',
type: 'NMEA2000',
pgn: 129025,
src: '160'
},
'$source': 'n2k-sample-data.160',
timestamp: '2014-08-15T19:00:02.544Z'
}
*/
Get a Bacon JS stream for path from the vessels.self context.
If it is not provided the returned stream produces values for all paths.
app.streambundle
.getSelfBus('navigation.position')
.onValue(pos => app.debug(pos));
Output:
{
path: 'navigation.position',
value: { longitude: 24.7366117, latitude: 59.72493 },
context: 'vessels.urn:mrn:signalk:uuid:a9d2c3b1-611b-4b00-8628-0b89d014ed60',
source: {
label: 'n2k-sample-data',
type: 'NMEA2000',
pgn: 129039,
src: '43'
},
'$source': 'n2k-sample-data.43',
timestamp: '2014-08-15T19:00:02.392Z'
}
{
path: 'navigation.position',
value: { longitude: 24.7366208, latitude: 59.7249198 },
context: 'vessels.urn:mrn:signalk:uuid:a9d2c3b1-611b-4b00-8628-0b89d014ed60',
source: {
label: 'n2k-sample-data',
type: 'NMEA2000',
pgn: 129025,
src: '160'
},
'$source': 'n2k-sample-data.160',
timestamp: '2014-08-15T19:00:02.544Z'
}
Get a Bacon JS stream for a path in the vessels.self context.
This is similar to getSelfBus, except that the stream values contain only the value property from the incoming deltas.
Optionalpath: Pathapp.streambundle
.getSelfStream('navigation.position')
.onValue(pos => app.debug(pos));
Output:
my-signalk-plugin { longitude: 24.736677, latitude: 59.7250108 } +600ms
my-signalk-plugin { longitude: 24.736645, latitude: 59.7249883 } +321ms
my-signalk-plugin { longitude: 24.7366563, latitude: 59.7249807 } +174ms
my-signalk-plugin { longitude: 24.7366563, latitude: 59.724980699999996 } +503ms
@param path -
Get a list of available full data model paths maintained by the server.