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am 04d7e83e: Added SensorManager.getAltitude()

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Merge commit '04d7e83e65e246e154b5b346e3eb0081b741ae88' into gingerbread-plus-aosp

* commit '04d7e83e65e246e154b5b346e3eb0081b741ae88':
  Added SensorManager.getAltitude()
This commit is contained in:
Mathias Agopian
2010-07-29 18:21:03 -07:00
committed by Android Git Automerger
parent 0251385553 04d7e83e65
commit dfce290b80
2 changed files with 56 additions and 7 deletions
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26
api/current.xml
View File

@ -77870,6 +77870,21 @@
deprecated="not deprecated"
visibility="public"
>
<method name="getAltitude"
return="float"
abstract="false"
native="false"
synchronized="false"
static="true"
final="false"
deprecated="not deprecated"
visibility="public"
>
<parameter name="p0" type="float">
</parameter>
<parameter name="p" type="float">
</parameter>
</method>
<method name="getDefaultSensor"
return="android.hardware.Sensor"
abstract="false"
@ -78449,6 +78464,17 @@
visibility="public"
>
</field>
<field name="PRESSURE_STANDARD_ATMOSPHERE"
type="float"
transient="false"
volatile="false"
value="1013.25f"
static="true"
final="true"
deprecated="not deprecated"
visibility="public"
>
</field>
<field name="RAW_DATA_INDEX"
type="int"
transient="false"

37
core/java/android/hardware/SensorManager.java
View File

@ -268,6 +268,10 @@ public class SensorManager
public static final float MAGNETIC_FIELD_EARTH_MIN = 30.0f;
/** Standard atmosphere, or average sea-level pressure in hPa (millibar) */
public static final float PRESSURE_STANDARD_ATMOSPHERE = 1013.25f;
/** Maximum luminance of sunlight in lux */
public static final float LIGHT_SUNLIGHT_MAX = 120000.0f;
/** luminance of sunlight in lux */
@ -573,11 +577,11 @@ public class SensorManager
// which won't get the rotated values
try {
sRotation = sWindowManager.watchRotation(
new IRotationWatcher.Stub() {
public void onRotationChanged(int rotation) {
SensorManager.this.onRotationChanged(rotation);
new IRotationWatcher.Stub() {
public void onRotationChanged(int rotation) {
SensorManager.this.onRotationChanged(rotation);
}
}
}
);
} catch (RemoteException e) {
}
@ -638,7 +642,7 @@ public class SensorManager
break;
case Sensor.TYPE_ORIENTATION:
result |= SensorManager.SENSOR_ORIENTATION |
SensorManager.SENSOR_ORIENTATION_RAW;
SensorManager.SENSOR_ORIENTATION_RAW;
break;
}
}
@ -1488,7 +1492,7 @@ public class SensorManager
* @see #getRotationMatrix(float[], float[], float[], float[])
* @see GeomagneticField
*/
public static float[] getOrientation(float[] R, float values[]) {
public static float[] getOrientation(float[] R, float values[]) {
/*
* 4x4 (length=16) case:
* / R[ 0] R[ 1] R[ 2] 0 \
@ -1514,8 +1518,27 @@ public class SensorManager
return values;
}
/**
* Computes the Altitude in meters from the atmospheric pressure and the
* pressure at sea level.
* <p>
* Typically the atmospheric pressure is read from a
* {@link Sensor#TYPE_PRESSURE} sensor. The pressure at sea level must be
* known, usually it can be retrieved from airport databases in the
* vicinity.
* </p>
*
* @param p0 pressure at sea level
* @param p atmospheric pressure
* @return Altitude in meters
*/
public static float getAltitude(float p0, float p) {
final float coef = 1.0f / 5.255f;
return 44330.0f * (1.0f - (float)Math.pow(p/p0, coef));
}
/**
* {@hide}
*/
public void onRotationChanged(int rotation) {