Summary: Inherited Constants | Inherited Fields | Ctors | Protected Methods | Inherited Methods

TextureViewMeteringPointFactory

Kotlin |Java

public class TextureViewMeteringPointFactory
extends MeteringPointFactory

java.lang.Object
↳	androidx.camera.core.MeteringPointFactory
	↳	androidx.camera.view.TextureViewMeteringPointFactory

A MeteringPointFactory for creating a MeteringPoint by TextureView and (x,y).

SurfaceTexture in TextureView could be cropped, scaled or rotated by TextureView.getTransform(Matrix). This factory translates the (x, y) into the sensor crop region normalized (x,y) by this transform. SurfaceTexture.getTransformMatrix(float[]) is also used during the translation. No lens facing information is required because SurfaceTexture.getTransformMatrix(float[]) contains the necessary transformation corresponding to the lens face of current camera ouput.

Summary

Inherited constants

From class androidx.camera.core.MeteringPointFactory

`float`	`DEFAULT_AREASIZE`
`float`	`DEFAULT_WEIGHT`

Inherited fields

From class androidx.camera.core.MeteringPointFactory


    protected
    
    
    Rational

mFOVAspectRatio

Public constructors
`TextureViewMeteringPointFactory(TextureView textureView)`

Protected methods
`PointF`	`translatePoint(float x, float y)` Translates a (x,y) from TextureView.

Inherited methods

From class


        
          androidx.camera.core.MeteringPointFactory

`final MeteringPoint`	`createPoint(float x, float y, float size, float weight)` Creates a `MeteringPoint` by x , y , areaSize and weight.
`final MeteringPoint`	`createPoint(float x, float y)` Creates a `MeteringPoint` by x, y.
`abstract PointF`	`translatePoint(float x, float y)` Translates a logical x/y into the normalized crop region x/y.

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 constructors

TextureViewMeteringPointFactory

public TextureViewMeteringPointFactory (TextureView textureView)

Parameters
`textureView`	`TextureView`

Protected methods

translatePoint

protected PointF translatePoint (float x, 
                float y)

Translates a (x,y) from TextureView.

Parameters
`x`	`float`: the logical x to be translated.
`y`	`float`: the logical y to be translated.

Returns
`PointF`	a `PointF` consisting of translated normalized crop region x/y,