tei/MapLibreParticleLab
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[android] #4942 - using Android SDK Compass example

Browse Source
This commit is contained in:
Tobrun
2016-05-17 12:44:37 +02:00
parent 73bf8b6ef6
commit 1d84a8964e
1 changed files with 23 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/widgets/MyLocationView.java
View File

@@ -429,18 +429,19 @@ public class MyLocationView extends View {
private class CompassListener implements SensorEventListener {
private boolean paused;
private SensorManager mSensorManager;
private Sensor mAccelerometer;
private Sensor mMagnetometer;
private float[] mLastAccelerometer = new float[3];
private float[] mLastMagnetometer = new float[3];
private boolean mLastAccelerometerSet = false;
private boolean mLastMagnetometerSet = false;
private float[] mR = new float[9];
private float[] mOrientation = new float[3];
private boolean paused;
private float mCurrentDegree = 0f;
private float[] mOrientation = new float[3];
private float[] mGData = new float[3];
private float[] mMData = new float[3];
private float[] mR = new float[16];
private float[] mI = new float[16];
// Controls the sensor updateLatLng rate in milliseconds
private static final int UPDATE_RATE_MS = 500;
@@ -476,30 +477,24 @@ public class MyLocationView extends View {
return;
}
if (event.sensor == mAccelerometer) {
System.arraycopy(event.values, 0, mLastAccelerometer, 0, event.values.length);
mLastAccelerometerSet = true;
} else if (event.sensor == mMagnetometer) {
System.arraycopy(event.values, 0, mLastMagnetometer, 0, event.values.length);
mLastMagnetometerSet = true;
int type = event.sensor.getType();
float[] data;
if (type == Sensor.TYPE_ACCELEROMETER) {
data = mGData;
} else if (type == Sensor.TYPE_MAGNETIC_FIELD) {
data = mMData;
} else {
// we should not be here.
return;
}
if (mLastAccelerometerSet && mLastMagnetometerSet) {
SensorManager.getRotationMatrix(mR, null, mLastAccelerometer, mLastMagnetometer);
SensorManager.getOrientation(mR, mOrientation);
float azimuthInRadians = mOrientation[0];
float compassBearing = (float) (Math.toDegrees(azimuthInRadians) + 360) % 360;
if (compassBearing < 0) {
// only allow positive degrees
compassBearing += 360;
}
if (compassBearing > mCurrentDegree + 15 || compassBearing < mCurrentDegree - 15) {
mCurrentDegree = compassBearing;
setCompass(mCurrentDegree);
}
for (int i = 0; i < 3; i++) {
data[i] = event.values[i];
}
SensorManager.getRotationMatrix(mR, mI, mGData, mMData);
SensorManager.getOrientation(mR, mOrientation);
setCompass((int) (mOrientation[0] * 180.0f / Math.PI));
mCompassUpdateNextTimestamp = currentTime + UPDATE_RATE_MS;
}