fromCompassHeadingStream method
Cast to a heading stream from flutter_compass stream.
Implementation
Stream<LocationMarkerHeading?> fromCompassHeadingStream({
Stream<CompassEvent?>? stream,
double minAccuracy = pi * 0.1,
double defAccuracy = pi * 0.3,
double maxAccuracy = pi * 0.4,
}) {
return (stream ?? defaultHeadingStreamSource())
.where((CompassEvent? e) => e == null || e.heading != null)
.map(
(CompassEvent? e) {
return e != null
? LocationMarkerHeading(
heading: degToRadian(e.heading!),
accuracy: (e.accuracy ?? defAccuracy).clamp(
minAccuracy,
maxAccuracy,
),
)
: null;
},
);
}