HeadTracker class - head_tracker library

Constructors

HeadTracker({required RotationTarget target, double sensitivity = 1.0, double pitchGain = 1.0, double predictionMs = 15.0, bool jitterDamping = true, bool? useIsolate, Stream<GyroscopeEvent>? gyroscopeStreamOverride, Stream<AccelerometerEvent>? accelerometerStreamOverride})
HeadTracker.forCamera(dynamic camera, {double sensitivity = 1.0, double predictionMs = 15.0, bool? useIsolate, Stream<GyroscopeEvent>? gyroscopeStreamOverride, Stream<AccelerometerEvent>? accelerometerStreamOverride}): For backwards compatibility with VRCamera.
factory

accelerometerStreamOverride → Stream<AccelerometerEvent>?: final
canStart → bool: Whether a registered platform backend or an injected sensor source can be started. This does not claim that hardware is present or sending data.
no setter
gyroscopeStreamOverride → Stream<GyroscopeEvent>?: final
hashCode → int: The hash code for this object.
no setterinherited
isActive → bool: Whether gyroscope is available and active.
no setter
isGyroscopeActive ↔ bool: getter/setter pair
jitterDamping ↔ bool: Whether high-frequency sensor jitter damping is active.
getter/setter pair
pitchGain ↔ double: Scale for gravity-referenced pitch; 1.0 preserves the measured tilt.
getter/setter pair
predictionMs ↔ double: Latency prediction compensation in milliseconds.
getter/setter pair
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
sensitivity ↔ double: Scale for gyro yaw and gyro-only relative pitch. Gravity-referenced pitch uses pitchGain instead. The default applies no additional delta scaling.
getter/setter pair
target → RotationTarget: final
useIsolate → bool: Whether to use background Isolate for sensor fusion (default: false). Platforms without isolate support keep using main-thread fusion.
final

applyTouchDelta(double dx, double dy, {double touchSensitivity = 0.005}) → void: Applies touch/pan rotation when no live gyroscope is delivering samples.
calibrate() → void: Averages gyro bias over one second while the device is stationary. Slow motion is not automatically treated as bias during normal tracking.
dispose() → void
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
recenter() → void: Recenters yaw without inventing pitch when no valid gravity sample exists.
start() → void: Starts tracking. Keep the device still during the one-second calibration.
stop() → void: Stops streams, timers, queued worker output and any pending calibration.
toString() → String: A string representation of this object.
inherited