将值从Sensor.TYPE_ORIENTATION转换为Euler角度？
我必须在Android中编写指南针应用程序。用户在屏幕上看到的唯一东西是一个带有红色墙的立方体，它必须指向北方。这并不重要。重要的是我需要根据设备本身的旋转相应地旋转该立方体，这样无论手机如何握住，红色墙壁都会继续指向北方。我的代码简单明了：
@Override
public void onSensorChanged(SensorEvent event) {
synchronized (this) {
switch (event.sensor.getType()){
case Sensor.TYPE_ACCELEROMETER:
direction = event.values[2];
break;
case Sensor.TYPE_ORIENTATION:
if (direction < 0) {
angleX = event.values[1];
angleY = -event.values[2];
angleZ = event.values[0];
} else {
angleX = -event.values[1];
angleY = -event.values[2];
angleZ = event.values[0];
}
break;
}
}
}
没有找到相关结果
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甲车劲
public void onSensorChanged(SensorEvent event) { float x = -1 * event.values[0] / SensorManager.GRAVITY_EARTH; float y = -1 * event.values[1] / SensorManager.GRAVITY_EARTH; float z = -1 * event.values[2] / SensorManager.GRAVITY_EARTH; float signedRawRoll = (float) (Math.atan2(x, y) * 180 / Math.PI); float unsignedRawRoll = Math.abs(signedRawRoll); float rollSign = signedRawRoll / unsignedRawRoll; float rawPitch = Math.abs(z * 180); // Use a basic low-pass filter to only keep the gravity in the accelerometer values for the X and Y axes // adjust the filter weight based on pitch, as roll is harder to define as pitch approaches 180. float filterWeight = rawPitch > 165 ? 0.85f : 0.7f; float newUnsignedRoll = filterWeight * Math.abs(this.roll) + (1 - filterWeight) * unsignedRawRoll; this.roll = rollSign * newUnsignedRoll; if (Float.isInfinite(this.roll) || Float.isNaN(this.roll)) { this.roll = 0; } this.pitch = filterWeight * this.pitch + (1 - filterWeight) * rawPitch; for (IAngleListener listener : listeners) { listener.deviceRollAndPitch(this.roll, this.pitch); } }