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2014/10/16 ¤W¤È 08:23:40
android Programming Glossary: sensormanager.getrotationmatrixConvert magnetic field X, Y, Z values from device into global reference frame http://stackoverflow.com/questions/15315129/convert-magnetic-field-x-y-z-values-from-device-into-global-reference-frame null float Rs new float 16 float I new float 16 if SensorManager.getRotationMatrix Rs I accelerometerValues geomagneticValues float RsInv new..
Android Compass that can Compensate for Tilt and Pitch http://stackoverflow.com/questions/16317599/android-compass-that-can-compensate-for-tilt-and-pitch sensor data without any API calls to e.g. SensorManager.getRotationMatrix ... or SensorManager.getOrientation ... . The code could probably..
How to use onSensorChanged sensor data in combination with OpenGL http://stackoverflow.com/questions/2881128/how-to-use-onsensorchanged-sensor-data-in-combination-with-opengl possibility how the rotationMatrix could be constructed in SensorManager.getRotationMatrix see http www.songho.ca opengl gl_anglestoaxes.html#anglestoaxes.. load the new values loadNewSensorData event if MODUS 1 SensorManager.getRotationMatrix rotationMatrix null accelGData magnetData if MODUS 2 rootMeanSquareBuffer.. rootMeanSquareBuffer bufferedMagnetData magnetData SensorManager.getRotationMatrix rotationMatrix null bufferedAccelGData bufferedMagnetData if..
Different values between sensors TYPE_ACCELEROMETER/TYPE_MAGNETIC_FIELD and TYPE_ORIENTATION http://stackoverflow.com/questions/4174389/different-values-between-sensors-type-accelerometer-type-magnetic-field-and-type float R new float 16 float orientationValues new float 3 SensorManager.getRotationMatrix R null aValues mValues SensorManager.getOrientation R orientationValues.. magnetometer vector can be combined mathematically through SensorManager.getRotationMatrix which returns a 3x3 matrix which will map vectors in device..
How can I use SensorManager.getOrientation for tilt controls like “My Paper Plane”? http://stackoverflow.com/questions/4576493/how-can-i-use-sensormanager-getorientation-for-tilt-controls-like-my-paper-plan most relevant snippet private void computeOrientation if SensorManager.getRotationMatrix m_rotationMatrix null m_lastMagFields m_lastAccels SensorManager.getOrientation.. and megnetic sensor arrays. The code should be if SensorManager.getRotationMatrix m_rotationMatrix null m_lastAccels m_lastMagFields Check out..
Transforming accelerometer's data from device's coordinates to real world coordinates http://stackoverflow.com/questions/5464847/transforming-accelerometers-data-from-devices-coordinates-to-real-world-coordi null float R new float 16 float I new float 16 SensorManager.getRotationMatrix R I accelerometervalues geomagneticmatrix What should I do..
android compass seems unreliable http://stackoverflow.com/questions/6256256/android-compass-seems-unreliable break if m_vfgravity null m_vfgeomag null if SensorManager.getRotationMatrix m_vfinR m_vfI m_vfgravity m_vfgeomag SensorManager.getOrientation..
Convert magnetic field X, Y, Z values from device into global reference frame http://stackoverflow.com/questions/15315129/convert-magnetic-field-x-y-z-values-from-device-into-global-reference-frame break if accelerometerValues null geomagneticValues null float Rs new float 16 float I new float 16 if SensorManager.getRotationMatrix Rs I accelerometerValues geomagneticValues float RsInv new float 16 Matrix.invertM RsInv 0 Rs 0 float resultVec new float..
Android Compass that can Compensate for Tilt and Pitch http://stackoverflow.com/questions/16317599/android-compass-that-can-compensate-for-tilt-and-pitch the azimuth and pitch from the raw TYPE_GRAVITY and TYPE_MAGNETIC_FIELD sensor data without any API calls to e.g. SensorManager.getRotationMatrix ... or SensorManager.getOrientation ... . The code could probably be improved e.g. by using a low pass filter if the inputs..
How to use onSensorChanged sensor data in combination with OpenGL http://stackoverflow.com/questions/2881128/how-to-use-onsensorchanged-sensor-data-in-combination-with-opengl the rotation matrix to calculate the angles 7 to 12 every possibility how the rotationMatrix could be constructed in SensorManager.getRotationMatrix see http www.songho.ca opengl gl_anglestoaxes.html#anglestoaxes for all possibilities private static int MODUS 2 private.. int accuracy public void onSensorChanged SensorEvent event load the new values loadNewSensorData event if MODUS 1 SensorManager.getRotationMatrix rotationMatrix null accelGData magnetData if MODUS 2 rootMeanSquareBuffer bufferedAccelGData accelGData rootMeanSquareBuffer.. if MODUS 2 rootMeanSquareBuffer bufferedAccelGData accelGData rootMeanSquareBuffer bufferedMagnetData magnetData SensorManager.getRotationMatrix rotationMatrix null bufferedAccelGData bufferedMagnetData if MODUS 3 rootMeanSquareBuffer bufferedMagnetData magnetData..
Different values between sensors TYPE_ACCELEROMETER/TYPE_MAGNETIC_FIELD and TYPE_ORIENTATION http://stackoverflow.com/questions/4174389/different-values-between-sensors-type-accelerometer-type-magnetic-field-and-type mValues event.values.clone break float R new float 16 float orientationValues new float 3 SensorManager.getRotationMatrix R null aValues mValues SensorManager.getOrientation R orientationValues orientationValues 0 float Math.toDegrees orientationValues.. downward due to magnetic dip . The accelerometer vector and magnetometer vector can be combined mathematically through SensorManager.getRotationMatrix which returns a 3x3 matrix which will map vectors in device coordinates to world coordinates or vice versa. For a device..
How can I use SensorManager.getOrientation for tilt controls like “My Paper Plane”? http://stackoverflow.com/questions/4576493/how-can-i-use-sensormanager-getorientation-for-tilt-controls-like-my-paper-plan prints the orientation values to text fields. Here is the most relevant snippet private void computeOrientation if SensorManager.getRotationMatrix m_rotationMatrix null m_lastMagFields m_lastAccels SensorManager.getOrientation m_rotationMatrix m_orientation 1 radian..
Transforming accelerometer's data from device's coordinates to real world coordinates http://stackoverflow.com/questions/5464847/transforming-accelerometers-data-from-devices-coordinates-to-real-world-coordi 2 break if geomagneticmatrix null accelerometervalues null float R new float 16 float I new float 16 SensorManager.getRotationMatrix R I accelerometervalues geomagneticmatrix What should I do here to transform the components of accelerometervalues into..
android compass seems unreliable http://stackoverflow.com/questions/6256256/android-compass-seems-unreliable break case Sensor.TYPE_MAGNETIC_FIELD m_vfgeomag event.values.clone break if m_vfgravity null m_vfgeomag null if SensorManager.getRotationMatrix m_vfinR m_vfI m_vfgravity m_vfgeomag SensorManager.getOrientation m_vfinR m_vforientVals m_fCompBearing float Math.round..
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