Added in API level 11
Deprecated in API level 31

Summary: Ctors | Methods | Inherited Methods

Matrix2f

Kotlin |Java

public class Matrix2f
extends Object

java.lang.Object
↳	android.renderscript.Matrix2f

This class was deprecated in API level 31.
Renderscript has been deprecated in API level 31. Please refer to the migration guide for the proposed alternatives.

Class for exposing the native RenderScript rs_matrix2x2 type back to the Android system.

Summary

Public constructors
`Matrix2f()` Creates a new identity 2x2 matrix
`Matrix2f(float[] dataArray)` Creates a new matrix and sets its values from the given parameter

Public methods
`float`	`get(int x, int y)` Returns the value for a given row and column
`float[]`	`getArray()` Return a reference to the internal array representing matrix values.
`void`	`load(Matrix2f src)` Sets the values of the matrix to those of the parameter
`void`	`loadIdentity()` Sets the matrix values to identity
`void`	`loadMultiply(Matrix2f lhs, Matrix2f rhs)` Sets current values to be the result of multiplying two given matrices
`void`	`loadRotate(float rot)` Sets current values to be a rotation matrix of given angle
`void`	`loadScale(float x, float y)` Sets current values to be a scale matrix of given dimensions
`void`	`multiply(Matrix2f rhs)` Post-multiplies the current matrix by a given parameter
`void`	`rotate(float rot)` Modifies the current matrix by post-multiplying it with a rotation matrix of given angle
`void`	`scale(float x, float y)` Modifies the current matrix by post-multiplying it with a scale matrix of given dimensions
`void`	`set(int x, int y, float v)` Sets the value for a given row and column
`void`	`transpose()` Sets the current matrix to its transpose

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

Matrix2f

Added in API level 11

public Matrix2f ()

Creates a new identity 2x2 matrix

Matrix2f

Added in API level 11

public Matrix2f (float[] dataArray)

Creates a new matrix and sets its values from the given parameter

Parameters
`dataArray`	`float`: values to set the matrix to, must be 4 floats long

Public methods

get

Added in API level 11

public float get (int x, 
                int y)

Returns the value for a given row and column

Parameters
`x`	`int`: column of the value to return
`y`	`int`: row of the value to return

Returns
`float`	value in the yth row and xth column

getArray

Added in API level 11

public float[] getArray ()

Return a reference to the internal array representing matrix values. Modifying this array will also change the matrix

Returns
`float[]`	internal array representing the matrix

load

Added in API level 11

public void load (Matrix2f src)

Sets the values of the matrix to those of the parameter

Parameters
`src`	`Matrix2f`: matrix to load the values from

loadIdentity

Added in API level 11

public void loadIdentity ()

Sets the matrix values to identity

loadMultiply

Added in API level 11

public void loadMultiply (Matrix2f lhs, 
                Matrix2f rhs)

Sets current values to be the result of multiplying two given matrices

Parameters
`lhs`	`Matrix2f`: left hand side matrix
`rhs`	`Matrix2f`: right hand side matrix

loadRotate

Added in API level 11

public void loadRotate (float rot)

Sets current values to be a rotation matrix of given angle

Parameters
`rot`	`float`: rotation angle

loadScale

Added in API level 11

public void loadScale (float x, 
                float y)

Sets current values to be a scale matrix of given dimensions

Parameters
`x`	`float`: scale component x
`y`	`float`: scale component y

multiply

Added in API level 11

public void multiply (Matrix2f rhs)

Post-multiplies the current matrix by a given parameter

Parameters
`rhs`	`Matrix2f`: right hand side to multiply by

rotate

Added in API level 11

public void rotate (float rot)

Modifies the current matrix by post-multiplying it with a rotation matrix of given angle

Parameters
`rot`	`float`: angle of rotation

scale

Added in API level 11

public void scale (float x, 
                float y)

Modifies the current matrix by post-multiplying it with a scale matrix of given dimensions

Parameters
`x`	`float`: scale component x
`y`	`float`: scale component y

set

Added in API level 11

public void set (int x, 
                int y, 
                float v)

Sets the value for a given row and column

Parameters
`x`	`int`: column of the value to set
`y`	`int`: row of the value to set
`v`	`float`

transpose

Added in API level 11

public void transpose ()

Sets the current matrix to its transpose