android.hardware.SensorManager.getRotationMatrix()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中android.hardware.SensorManager.getRotationMatrix()方法的一些代码示例，展示了SensorManager.getRotationMatrix()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。SensorManager.getRotationMatrix()方法的具体详情如下：
包路径：android.hardware.SensorManager
类名称：SensorManager
方法名：getRotationMatrix

SensorManager.getRotationMatrix介绍

暂无

代码示例

代码示例来源：origin: libgdx/libgdx

/** Returns the rotation matrix describing the devices rotation as per <a href=
 * "http://developer.android.com/reference/android/hardware/SensorManager.html#getRotationMatrix(float[], float[], float[], float[])"
 * >SensorManager#getRotationMatrix(float[], float[], float[], float[])</a>. Does not manipulate the matrix if the platform
 * does not have an accelerometer and compass, or a rotation vector sensor.
 * @param matrix */
public void getRotationMatrix (float[] matrix) {
  if (rotationVectorAvailable)
    SensorManager.getRotationMatrixFromVector(matrix, rotationVectorValues);
  else // compass + accelerometer
    SensorManager.getRotationMatrix(matrix, null, accelerometerValues, magneticFieldValues);
}

代码示例来源：origin: aporter/coursera-android

boolean success = SensorManager.getRotationMatrix(rotationMatrix,
    null, mGravity, mGeomagnetic);

代码示例来源：origin: novoda/android-demos

private void updateSensorValues(SensorEvent event) {
  if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
    setAcclValues(event);
  } else if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) {
    setmagValues(event);
  }
  SensorManager.getRotationMatrix(rotation, null, grav, mag);
  SensorManager.getOrientation(rotation, orientation);
  double floatBearing = orientation[0];
  floatBearing = Math.toDegrees(floatBearing); 
  if (magField != null)
    floatBearing += magField.getDeclination();
  if (floatBearing < 0)
    floatBearing += 360;
  setBearing(floatBearing);
  setRotationInDegrees(floatBearing);
}

代码示例来源：origin: libgdx/libgdx

/** Returns the rotation matrix describing the devices rotation as per <a href=
 * "http://developer.android.com/reference/android/hardware/SensorManager.html#getRotationMatrix(float[], float[], float[], float[])"
 * >SensorManager#getRotationMatrix(float[], float[], float[], float[])</a>. Does not manipulate the matrix if the platform
 * does not have an accelerometer and compass, or a rotation vector sensor.
 * @param matrix */
public void getRotationMatrix (float[] matrix) {
  if (rotationVectorAvailable)
    SensorManager.getRotationMatrixFromVector(matrix, rotationVectorValues);
  else // compass + accelerometer
    SensorManager.getRotationMatrix(matrix, null, accelerometerValues, magneticFieldValues);
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

if (SensorManager.getRotationMatrix(curRotationMat, curInclinationMat, accValues, magValues)) {
  final float [] orientValues = new float[3];
  if (remapCoordinates(curRotationMat, rotatedRotationMat)) {

代码示例来源：origin: libgdx/libgdx

private void updateOrientation () {
  if (rotationVectorAvailable){
    SensorManager.getRotationMatrixFromVector(R, rotationVectorValues);
  } else if (!SensorManager.getRotationMatrix(R, null, accelerometerValues, magneticFieldValues)) {
      return; // compass + accelerometer in free fall
  }
  SensorManager.getOrientation(R, orientation);
  azimuth = (float)Math.toDegrees(orientation[0]);
  pitch = (float)Math.toDegrees(orientation[1]);
  roll = (float)Math.toDegrees(orientation[2]);
}

代码示例来源：origin: nisrulz/sensey

float[] R = new float[9];
float[] I = new float[9];
boolean success = SensorManager.getRotationMatrix(R, I, mGravity, mGeomagnetic);
if (success) {
  float[] orientationData = new float[3];

代码示例来源：origin: libgdx/libgdx

private void updateOrientation () {
  if (rotationVectorAvailable){
    SensorManager.getRotationMatrixFromVector(R, rotationVectorValues);
  } else if (!SensorManager.getRotationMatrix(R, null, accelerometerValues, magneticFieldValues)) {
      return; // compass + accelerometer in free fall
  }
  SensorManager.getOrientation(R, orientation);
  azimuth = (float)Math.toDegrees(orientation[0]);
  pitch = (float)Math.toDegrees(orientation[1]);
  roll = (float)Math.toDegrees(orientation[2]);
}

代码示例来源：origin: westnordost/StreetComplete

@Override public void onSensorChanged(SensorEvent event)
{
  if (listener == null) return;
  if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD)
  {
    geomagnetic = event.values.clone();
  }
  else if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER)
  {
    gravity = event.values.clone();
  }
  if (gravity != null && geomagnetic != null)
  {
    float R[] = new float[9];
    float I[] = new float[9];
    boolean success = SensorManager.getRotationMatrix(R, I, gravity, geomagnetic);
    if (success) {
      R = remapToDisplayRotation(R);
      float orientation[] = new float[3];
      SensorManager.getOrientation(R, orientation);
      float azimut = orientation[0] - declination;
      float pitch = orientation[1];
      float roll = orientation[2];
      rotation = azimut;
      tilt = pitch;
    }
  }
}

代码示例来源：origin: StevenRudenko/BleSensorTag

public void calculateAccMagOrientation() {
  if (SensorManager.getRotationMatrix(rotationMatrix, null, accel, magnet)) {
    SensorManager.getOrientation(rotationMatrix, accMagOrientation);
  }
}

代码示例来源：origin: retomeier/Wrox-ProfessionalAndroid-4E

private void listing16_12() {
 // Listing 16-12: Finding the current orientation using the accelerometer and magnetometer
 float[] values = new float[3];
 float[] R = new float[9];
 SensorManager.getRotationMatrix(R, null,
  mAccelerometerValues,
  mMagneticFieldValues);
 SensorManager.getOrientation(R, values);
 // Convert from radians to degrees if preferred.
 values[0] = (float) Math.toDegrees(values[0]); // Azimuth
 values[1] = (float) Math.toDegrees(values[1]); // Pitch
 values[2] = (float) Math.toDegrees(values[2]); // Roll
}

代码示例来源：origin: neXenio/BLE-Indoor-Positioning

private void updateOrientationAngles() {
  SensorManager.getRotationMatrix(rotationMatrix, null, accelerometerReading, magnetometerReading);
  SensorManager.getOrientation(rotationMatrix, orientationAngles);
  beaconRadar.startDeviceAngleAnimation((float) Math.toDegrees(orientationAngles[0]));
}

代码示例来源：origin: domsu/compass

private void emitAzimuth() {
    if (gravity != null && geomagnetic != null) {
      boolean success = SensorManager.getRotationMatrix(rotationMatrix, null, gravity, geomagnetic);

      if (success) {
        SensorManager.getOrientation(rotationMatrix, rotationMatrixResult);
        emitData(rotationMatrixResult[0]);
      }
    }
  }
}

代码示例来源：origin: apacha/sensor-fusion-demo

@Override
  public void onSensorChanged(SensorEvent event) {

    // we received a sensor event. it is a good practice to check
    // that we received the proper event
    if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) {
      System.arraycopy(event.values, 0, magnitudeValues, 0, magnitudeValues.length);
    } else if (event.sensor.getType() == Sensor.TYPE_GRAVITY) {
      System.arraycopy(event.values, 0, gravityValues, 0, gravityValues.length);
    }

    if (magnitudeValues != null && gravityValues != null) {
      // Fuse gravity-sensor (virtual sensor) with compass
      SensorManager.getRotationMatrix(currentOrientationRotationMatrix.matrix, inclinationValues, gravityValues, magnitudeValues);
      // Transform rotation matrix to quaternion
      currentOrientationQuaternion.setRowMajor(currentOrientationRotationMatrix.matrix);
    }
  }
}

代码示例来源：origin: apacha/sensor-fusion-demo

@Override
  public void onSensorChanged(SensorEvent event) {

    // we received a sensor event. it is a good practice to check
    // that we received the proper event
    if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) {
      System.arraycopy(event.values, 0, magnitudeValues, 0, magnitudeValues.length);
    } else if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
      System.arraycopy(event.values, 0, accelerometerValues, 0, accelerometerValues.length);
    }

    if (magnitudeValues != null && accelerometerValues != null) {
      // Fuse accelerometer with compass
      SensorManager.getRotationMatrix(currentOrientationRotationMatrix.matrix, inclinationValues, accelerometerValues,
          magnitudeValues);
      // Transform rotation matrix to quaternion
      currentOrientationQuaternion.setRowMajor(currentOrientationRotationMatrix.matrix);
    }
  }
}

代码示例来源：origin: InnoFang/Android-Code-Demos

public void onSensorChanged(SensorEvent event) {
  if (event.accuracy == SensorManager.SENSOR_STATUS_ACCURACY_LOW) return;
  if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) {
    arrayCopy(event.values, geomagnetic);
  }
  if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
    arrayCopy(event.values, gravity);
  }
  if (SensorManager.getRotationMatrix(R, I, gravity, geomagnetic)) {
    SensorManager.getOrientation(R, orientation);
    azimuth += easing * (orientation[0] - azimuth);
    pitch += easing * (orientation[1] - pitch);
    roll += easing * (orientation[2] - roll);
  }
}

代码示例来源：origin: Fewlaps/flone-android

@Override
public void onSensorChanged(SensorEvent event) {
  if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER)
    mGravity = event.values;
  if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD)
    mGeomagnetic = event.values;
  if (mGravity != null && mGeomagnetic != null) {
    boolean success = SensorManager.getRotationMatrix(R, I, mGravity, mGeomagnetic);
    if (success) {
      SensorManager.getOrientation(R, orientation);
    }
  }
  setHeading(restrictAngle((int) Math.toDegrees((double) orientation[0])));
  setPitch(restrictAngle((int) Math.toDegrees((double) orientation[2])));
  setRoll(restrictAngle((int) Math.toDegrees((double) orientation[1])));
  EventBus.getDefault().post(new PhoneSensorsData(heading, pitch, roll));
}

代码示例来源：origin: Phantast/smartnavi

public void calculateAzimuth() {
  SensorManager.getRotationMatrix(RMatrix, iMatrix, gravity, magn);
  SensorManager.remapCoordinateSystem(RMatrix, SensorManager.AXIS_X, SensorManager.AXIS_Y, RMatrixRemapped);
  SensorManager.getOrientation(RMatrixRemapped, orientation);
  Matrix.transposeM(RMatrixTranspose, 0, RMatrix, 0);
  Matrix.multiplyMV(linearRemapped, 0, RMatrixTranspose, 0, linear, 0);
  //If Gyroscope exists, use ImprovedOrientationProvider, else use accelerometer and magentic field
  if (gyroExists) {
    azimuth = mOrientationProvider.getAzimuth(decl);
  } else {
    if (orientation[0] >= 0) {
      // Azimuth-Calculation (rad in degree)
      azimuth = (orientation[0] * 57.29577951f + decl);
    } else {
      // Azimuth-Calculation (rad in degree) +360
      azimuth = (orientation[0] * 57.29577951f + 360 + decl);
    }
    if (azimuth >= 360) {
      azimuth -= 360;
    }
  }
}

代码示例来源：origin: dozingcat/Vector-Pinball

/**
 * SensorEventListener method called when sensor values are updated. Reads gravitational and
 * magnetic field information, and when both are available computes the orientation values
 * and calls the delegate with them.
 */
@Override public void onSensorChanged(SensorEvent event) {
  switch(event.sensor.getType()) {
  case Sensor.TYPE_MAGNETIC_FIELD:
    mags = event.values.clone();
    break;
  case Sensor.TYPE_ACCELEROMETER:
    accels = event.values.clone();
    break;
  }
  if (mags!=null && accels!=null) {
    SensorManager.getRotationMatrix(R, I, accels, mags);
    SensorManager.getOrientation(R, orientationValues);
    delegate.receivedOrientationValues(
        orientationValues[0], orientationValues[1], orientationValues[2]);
  }
}

代码示例来源：origin: KalebKE/FSensor

/**
 * Calculates orientation vector from accelerometer and magnetometer output.
 *
 * @param acceleration the acceleration measurement.
 * @param magnetic     the magnetic measurement.
 * @return
 */
public static Quaternion getOrientationVectorFromAccelerationMagnetic(float[] acceleration, float[] magnetic) {
  float[] rotationMatrix = new float[9];
  if (SensorManager.getRotationMatrix(rotationMatrix, null, acceleration, magnetic)) {
    float[] rv = new float[3];
    SensorManager.getOrientation(rotationMatrix,rv);
    // SensorManager.getOrientation() returns an orientation in Earth frame and that needs to be rotated into device frame so the reported angles
    // are indexed with the orientation of the sensors
    Rotation rotation = new Rotation(RotationOrder.XYZ, RotationConvention.VECTOR_OPERATOR, rv[1], -rv[2], rv[0]);
    return new Quaternion(rotation.getQ0(), rotation.getQ1(),rotation.getQ2(),rotation.getQ3());
  }
  return null;
}

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