LeveledRelativeAttitudeEstimator

Estimates a leveled relative attitude, where only yaw Euler angle is relative to the start instant of this estimator. Roll and pitch Euler angles are leveled using accelerometer or gravity sensors.

Constructors

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constructor(context: Context, location: Location? = null, sensorDelay: SensorDelay = SensorDelay.GAME, useAccelerometer: Boolean = true, accelerometerSensorType: AccelerometerSensorType = AccelerometerSensorType.ACCELEROMETER_UNCALIBRATED, accelerometerAveragingFilter: AveragingFilter = LowPassAveragingFilter(), gyroscopeSensorType: GyroscopeSensorType = GyroscopeSensorType.GYROSCOPE_UNCALIBRATED, useAccurateLevelingEstimator: Boolean = false, useAccurateRelativeGyroscopeAttitudeEstimator: Boolean = true, estimateCoordinateTransformation: Boolean = false, estimateEulerAngles: Boolean = true, attitudeAvailableListener: LeveledRelativeAttitudeEstimator.OnAttitudeAvailableListener? = null, accelerometerMeasurementListener: AccelerometerSensorCollector.OnMeasurementListener? = null, gravityMeasurementListener: GravitySensorCollector.OnMeasurementListener? = null, gyroscopeMeasurementListener: GyroscopeSensorCollector.OnMeasurementListener? = null, gravityEstimationListener: GravityEstimator.OnEstimationListener? = null)

Constructor.

Types

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object Companion
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Interface to notify when a new attitude measurement is available.

Properties

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an averaging filter for accelerometer samples to obtain sensed gravity component of specific force. (Only used if useAccelerometer is true).

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Listener to notify new accelerometer measurements. (Only used if useAccelerometer is true).

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One of the supported accelerometer sensor types. (Only used if useAccelerometer is true).

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listener to notify when a new attitude measurement is available.

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Android context.

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true to estimate coordinate transformation, false otherwise. If not needed, it can be disabled to improve performance and decrease cpu load.

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true to estimate euler angles, false otherwise. If not needed, it can be disabled to improve performance and decrease cpu load.

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Listener to notify when a new gravity estimation is available.

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listener to notify new gravity measurements. (Only used if useAccelerometer is false).

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Gets average time interval between gyroscope samples expressed in seconds.

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Listener to notify new gyroscope measurements.

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One of the supported gyroscope sensor types.

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Factor to take into account when interpolation value is computed and useIndirectInterpolation is enabled to determine actual interpolation value based on current relative attitude rotation velocity.

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Interpolation value to be used to combine both leveling and relative attitudes. Must be between 0.0 and 1.0 (both included). The closer to 0.0 this value is, the more resemblance the result will have to a pure leveling (which feels more jerky when using accelerometer). On the contrary, the closer to 1.0 this value is, the more resemblance the result will have to a pure non-leveled relative attitude (which feels softer but might have arbitrary roll and pitch Euler angles).

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Gets or sets device location

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Threshold to determine that leveling has largely diverged and if situation is not reverted soon, attitude will be reset to leveling

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Threshold to determine that current leveling appears to be an outlier respect to estimated fused attitude. When leveling and fused attitudes diverge, fusion is not performed, and instead only gyroscope relative attitude is used for fusion estimation.

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Threshold to determine when fused attitude has largely diverged for a given number of samples and must be reset.

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Indicates whether this estimator is running or not.

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Delay of sensors between samples.

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true to use accelerometer sensor, false to use system gravity sensor for leveling purposes.

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Indicates whether accurate leveling must be used or not.

Indicates whether accurate non-leveled relative attitude estimator must be used or not.

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Indicates whether fusion between leveling and relative attitudes occurs based on changing interpolation value that depends on actual relative attitude rotation velocity.

Functions

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fun start(): Boolean

Starts this estimator.

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fun stop()

Stops this estimator.