Summary: Methods | Inherited Methods

MeteringPoint

Kotlin |Java

public class MeteringPoint
extends Object

java.lang.Object
↳	androidx.camera.core.MeteringPoint

A MeteringPoint used to specify a region in sensor coordinates for focusing and metering Purpose.

To create a MeteringPoint, apps have to use DisplayOrientedMeteringPointFactory or SensorOrientedMeteringPointFactory. The X/Y insides a MeteringPoint represents the normalized X/Y inside current crop region. If no crop region is set, the the whole sensor area is used. AreaSize represents the width and the height of the metering area and Weight can also be specified. By default, a MeteringPoint is mapped to the sensor coordinates using Preview aspect ratio. A custom FOV aspect ratio can be set if apps want to use aspect ratio other than Preview.

Summary

Public methods
`Rational`	`getFOVAspectRatio()` Get custom aspect ratio to be adjusted for final sensor coordinates.
`float`	`getNormalizedCropRegionX()` Normalized crop region X (Ranging from 0 to 1)
`float`	`getNormalizedCropRegionY()` Normalized crop region Y (Ranging from 0 to 1)
`float`	`getSize()` Size of the MeteringPoint(ranging from 0 to 1).
`float`	`getWeight()` Weight of the MeteringPoint (Ranging from 0 to 1)
`void`	`setFOVAspectRatio(Rational fovAspectRatio)` Set custom aspect ratio to be adjusted for final sensor coordinates.
`void`	`setSize(float size)` Sets the size of MeteringPoint (ranging from 0 to 1).
`void`	`setWeight(float weight)` Sets weight of this metering point (ranging from 0 to 1)

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

Public methods

getFOVAspectRatio

public Rational getFOVAspectRatio ()

Get custom aspect ratio to be adjusted for final sensor coordinates.

Returns
`Rational`

getNormalizedCropRegionX

public float getNormalizedCropRegionX ()

Normalized crop region X (Ranging from 0 to 1)

Returns
`float`

getNormalizedCropRegionY

public float getNormalizedCropRegionY ()

Normalized crop region Y (Ranging from 0 to 1)

Returns
`float`

getSize

public float getSize ()

Size of the MeteringPoint(ranging from 0 to 1). The value represents the percentage of current crop region width/height

Returns
`float`

getWeight

public float getWeight ()

Weight of the MeteringPoint (Ranging from 0 to 1)

Returns
`float`

setFOVAspectRatio

public void setFOVAspectRatio (Rational fovAspectRatio)

Set custom aspect ratio to be adjusted for final sensor coordinates.

Parameters
`fovAspectRatio`	`Rational`

setSize

public void setSize (float size)

Sets the size of MeteringPoint (ranging from 0 to 1). It is the percentage of the sensor width/height (or cropRegion width/height if crop region is set)

Metering Area width = size * cropRegion.width
 Metering Area height = size * cropRegion.height

Parameters
`size`	`float`

setWeight

public void setWeight (float weight)

Sets weight of this metering point (ranging from 0 to 1)

Parameters
`weight`	`float`