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Prevent bearing flipping in the cases of upside down and face down.

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Tsoi Yat Shing
2020-04-23 11:46:57 +08:00
committed by Łukasz Paczos
parent d230172b3c
commit 6f6f146d69
1 changed files with 59 additions and 1 deletions
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60
MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/location/LocationComponentCompassEngine.java
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@@ -182,7 +182,7 @@ class LocationComponentCompassEngine implements CompassEngine, SensorEventListen
SensorManager.getOrientation(adjustedRotationMatrix, orientation);
if (orientation[1] < -Math.PI / 4) {
// The pitch is less than 45 degrees.
// The pitch is less than -45 degrees.
// Remap the axes as if the device screen was the instrument panel,
// and adjust the rotation matrix for the device orientation.
switch (windowManager.getDefaultDisplay().getRotation()) {
@@ -205,6 +205,64 @@ class LocationComponentCompassEngine implements CompassEngine, SensorEventListen
break;
}
SensorManager.remapCoordinateSystem(rotationMatrix, worldAxisForDeviceAxisX,
worldAxisForDeviceAxisY, adjustedRotationMatrix);
// Transform rotation matrix into azimuth/pitch/roll
SensorManager.getOrientation(adjustedRotationMatrix, orientation);
} else if (orientation[1] > Math.PI / 4) {
// The pitch is larger than 45 degrees.
// Remap the axes as if the device screen was upside down and facing back,
// and adjust the rotation matrix for the device orientation.
switch (windowManager.getDefaultDisplay().getRotation()) {
case Surface.ROTATION_90:
worldAxisForDeviceAxisX = SensorManager.AXIS_MINUS_Z;
worldAxisForDeviceAxisY = SensorManager.AXIS_MINUS_X;
break;
case Surface.ROTATION_180:
worldAxisForDeviceAxisX = SensorManager.AXIS_MINUS_X;
worldAxisForDeviceAxisY = SensorManager.AXIS_Z;
break;
case Surface.ROTATION_270:
worldAxisForDeviceAxisX = SensorManager.AXIS_Z;
worldAxisForDeviceAxisY = SensorManager.AXIS_X;
break;
case Surface.ROTATION_0:
default:
worldAxisForDeviceAxisX = SensorManager.AXIS_X;
worldAxisForDeviceAxisY = SensorManager.AXIS_MINUS_Z;
break;
}
SensorManager.remapCoordinateSystem(rotationMatrix, worldAxisForDeviceAxisX,
worldAxisForDeviceAxisY, adjustedRotationMatrix);
// Transform rotation matrix into azimuth/pitch/roll
SensorManager.getOrientation(adjustedRotationMatrix, orientation);
} else if (Math.abs(orientation[2]) > Math.PI / 2) {
// The roll is less than -90 degrees, or is larger than 90 degrees.
// Remap the axes as if the device screen was face down,
// and adjust the rotation matrix for the device orientation.
switch (windowManager.getDefaultDisplay().getRotation()) {
case Surface.ROTATION_90:
worldAxisForDeviceAxisX = SensorManager.AXIS_MINUS_Y;
worldAxisForDeviceAxisY = SensorManager.AXIS_MINUS_X;
break;
case Surface.ROTATION_180:
worldAxisForDeviceAxisX = SensorManager.AXIS_MINUS_X;
worldAxisForDeviceAxisY = SensorManager.AXIS_Y;
break;
case Surface.ROTATION_270:
worldAxisForDeviceAxisX = SensorManager.AXIS_Y;
worldAxisForDeviceAxisY = SensorManager.AXIS_X;
break;
case Surface.ROTATION_0:
default:
worldAxisForDeviceAxisX = SensorManager.AXIS_X;
worldAxisForDeviceAxisY = SensorManager.AXIS_MINUS_Y;
break;
}
SensorManager.remapCoordinateSystem(rotationMatrix, worldAxisForDeviceAxisX,
worldAxisForDeviceAxisY, adjustedRotationMatrix);