如何将偏航角,滚动和俯仰值转换为(x,y)坐标？

概述嗨,在我的应用程序中,我需要创建一个陀螺仪,为此,我正在使用以下代码.publicclassAccessGyroscopeextendsActivityimplementsSensorEventListener{privateTextViewtv;privateSensorManagersManager;/**Calledwhentheactivityisfirstcreated.*

嗨,在我的应用程序中,我需要创建一个陀螺仪,为此,我正在使用以下代码.

public class Accessgyroscope extends Activity implements SensorEventListener{    private TextVIEw tv;    private SensorManager sManager;    /** Called when the activity is first created. */    @OverrIDe    public voID onCreate(Bundle savedInstanceState)     {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.main);        tv = (TextVIEw) findVIEwByID(R.ID.tv);        sManager = (SensorManager) getSystemService(SENSOR_SERVICE);    }    @OverrIDe    protected voID onResume()     {        super.onResume();        sManager.registerListener(this, sManager.getDefaultSensor(Sensor.TYPE_ORIENTATION),SensorManager.SENSOR_DELAY_FASTEST);    }    @OverrIDe    protected voID onStop()     {        sManager.unregisterListener(this);        super.onStop();    }    @OverrIDe    public voID onAccuracyChanged(Sensor arg0, int arg1)     {    }    @OverrIDe    public voID onSensorChanged(SensorEvent event)     {        if (event.accuracy == SensorManager.SENSOR_STATUS_UNREliABLE)        {            return;        }        tv.setText("OrIEntation X (Roll) :"+ float.toString(event.values[2]) +"\n"+                   "OrIEntation Y (Pitch) :"+ float.toString(event.values[1]) +"\n"+                   "OrIEntation Z (Yaw) :"+ float.toString(event.values[0]));    }}

我可以拿到Yaw,Roll&螺距值,但我想在2d平面中显示.
基本上我想要这样的视图.

红点应根据设备的方向移动.我可以在画布上工作以准备该视图.但是我真正想要的是与Yaw,Roll& amp;相关的坐标.节距值.

请帮忙

解决方法:

终于我找到了答案.

首先,我使用TYPE_GraviTY而不是TYPE_ORIENTATION.

这是我的完整代码.

我的自定义视图的代码是..

public class gyroscopeVIEw extends VIEw{    private final static String TAG = "gyroscopeVIEw";    private float bearing;    float pitch = 0;    float roll = 0;    private Paint paintOuter;    private Paint paintInner;    private Paint paintDot;    float pointX, pointY;    float dotX, dotY;    int radius;    public gyroscopeVIEw(Context context, AttributeSet attrs, int defStyle)    {        super(context, attrs, defStyle);        // Todo auto-generated constructor stub        initCompassVIEw();    }    public gyroscopeVIEw(Context context, AttributeSet attrs)    {        super(context, attrs);        // Todo auto-generated constructor stub        initCompassVIEw();    }    public gyroscopeVIEw(Context context)    {        super(context);        // Todo auto-generated constructor stub        initCompassVIEw();    }    protected voID initCompassVIEw()    {        setFocusable(true);        Resources r = this.getResources();        paintOuter = new Paint(Paint.ANTI_AliAS_FLAG);        paintOuter.setcolor(color.WHITE);        paintOuter.setstrokeWIDth(1);        paintOuter.setStyle(Paint.Style.FILL_AND_stroke);        paintInner = new Paint(Paint.ANTI_AliAS_FLAG);        paintInner.setcolor(color.BLUE);        paintInner.setstrokeWIDth(1);        paintInner.setStyle(Paint.Style.stroke);        paintDot = new Paint(Paint.ANTI_AliAS_FLAG);        paintDot.setcolor(color.RED);        paintDot.setstrokeWIDth(1);        paintDot.setStyle(Paint.Style.FILL_AND_stroke);    }    @OverrIDe    protected voID onDraw(Canvas canvas)    {        // Todo auto-generated method stub        super.onDraw(canvas);        int px = getMeasureDWIDth() / 2;        int py = getMeasuredHeight() / 2;        radius = Math.min(px, py);        pointX = px;        pointY = py;        canvas.drawCircle(pointX, pointY, radius, paintOuter);        canvas.drawCircle(pointX, pointY, 40, paintInner);        canvas.drawCircle(dotX, dotY, 5, paintDot);    }    voID update(float z, float yy, float xx)    {        if (yy > 0)        {            dotY = pointY - ((1 - yy) * z);        } else        {            dotY = pointY + ((1 - yy) * z);        }        if (xx > 0)        {            dotX = pointX - ((1 - xx) * z);        } else        {            dotX = pointX + ((1 - xx) * z);        }        invalIDate();    }

这是我的活动代码.

public class gyroscopeActivity extends Activity{    gyroscopeVIEw gyroscopeVIEw;    SensorManager sensorManager;    float[] gValues = new float[3];    @OverrIDe    public voID onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.gyroscope);         gyroscopeVIEw = (gyroscopeVIEw) findVIEwByID(R.ID.gyroscope_vIEw);        initSensor();    }    voID initSensor()    {        sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);    }    @OverrIDe    protected voID onResume()    {        super.onResume();        Sensor sensorgyroscope = sensorManager.getDefaultSensor(Sensor.TYPE_GraviTY);        sensorManager.registerListener(sensorGyroListener, sensorgyroscope, SensorManager.SENSOR_DELAY_UI);    }    @OverrIDe    protected voID onStop()    {        sensorManager.unregisterListener(sensorGyroListener);        super.onStop();    }    private final SensorEventListener sensorGyroListener = new SensorEventListener()    {        public voID onSensorChanged(SensorEvent event)        {            if (event.sensor.getType() == Sensor.TYPE_GraviTY)                gValues = event.values;            gyroscopeVIEw.update(gValues[0], gValues[1], gValues[2]);        }        public voID onAccuracyChanged(Sensor sensor, int accuracy)        {        }    };

希望这会帮助某人.

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