SensorManager.GetRotationMatrix(Single[], Single[], Single[], Single[]) Method

Reference

Definition

Namespace:: Android.Hardware

Assembly:: Mono.Android.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Computes the inclination matrix I as well as the rotation matrix R transforming a vector from the device coordinate system to the world's coordinate system which is defined as a direct orthonormal basis, where:

[Android.Runtime.Register("getRotationMatrix", "([F[F[F[F)Z", "")]
public static bool GetRotationMatrix (float[]? R, float[]? I, float[]? gravity, float[]? geomagnetic);

[<Android.Runtime.Register("getRotationMatrix", "([F[F[F[F)Z", "")>]
static member GetRotationMatrix : single[] * single[] * single[] * single[] -> bool

Parameters

R: Single[]

is an array of 9 floats holding the rotation matrix R when this function returns. R can be null.

I: Single[]

is an array of 9 floats holding the rotation matrix I when this function returns. I can be null.

gravity: Single[]

is an array of 3 floats containing the gravity vector expressed in the device's coordinate. You can simply use the android.hardware.SensorEvent#values values returned by a android.hardware.SensorEvent SensorEvent of a android.hardware.Sensor Sensor of type android.hardware.Sensor#TYPE_ACCELEROMETER TYPE_ACCELEROMETER.

geomagnetic: Single[]

is an array of 3 floats containing the geomagnetic vector expressed in the device's coordinate. You can simply use the android.hardware.SensorEvent#values values returned by a android.hardware.SensorEvent SensorEvent of a android.hardware.Sensor Sensor of type android.hardware.Sensor#TYPE_MAGNETIC_FIELD TYPE_MAGNETIC_FIELD.

Returns

Boolean

<code>true</code> on success, <code>false</code> on failure (for instance, if the device is in free fall). Free fall is defined as condition when the magnitude of the gravity is less than 1/10 of the nominal value. On failure the output matrices are not modified.

Attributes: RegisterAttribute

Remarks

Java documentation for android.hardware.SensorManager.getRotationMatrix(float[], float[], float[], float[]).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to