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Added in API level 11

Summary: Ctors | Methods | Inherited Methods | [Expand All]

Matrix3f

public class Matrix3f
extends Object

java.lang.Object
↳	android.renderscript.Matrix3f

Class for exposing the native RenderScript rs_matrix3x3 type back to the Android system.

Summary

Public constructors
`Matrix3f()` Creates a new identity 3x3 matrix
`Matrix3f(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(Matrix3f src)` Sets the values of the matrix to those of the parameter
`void`	`loadIdentity()` Sets the matrix values to identity
`void`	`loadMultiply(Matrix3f lhs, Matrix3f rhs)` Sets current values to be the result of multiplying two given matrices
`void`	`loadRotate(float rot, float x, float y, float z)` Sets current values to be a rotation matrix of certain angle about a given axis
`void`	`loadRotate(float rot)` Makes the upper 2x2 a rotation matrix of the given angle
`void`	`loadScale(float x, float y)` Makes the upper 2x2 a scale matrix of given dimensions
`void`	`loadScale(float x, float y, float z)` Sets current values to be a scale matrix of given dimensions
`void`	`loadTranslate(float x, float y)` Sets current values to be a translation matrix of given dimensions
`void`	`multiply(Matrix3f rhs)` Post-multiplies the current matrix by a given parameter
`void`	`rotate(float rot)` Modifies the upper 2x2 of the current matrix by post-multiplying it with a rotation matrix of given angle
`void`	`rotate(float rot, float x, float y, float z)` Modifies the current matrix by post-multiplying it with a rotation matrix of certain angle about a given axis
`void`	`scale(float x, float y)` Modifies the upper 2x2 of the current matrix by post-multiplying it with a scale matrix of given dimensions
`void`	`scale(float x, float y, float z)` 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`	`translate(float x, float y)` Modifies the current matrix by post-multiplying it with a translation matrix of given dimensions
`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 millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

Matrix3f

Added in API level 11

Matrix3f ()

Creates a new identity 3x3 matrix

Matrix3f

Added in API level 11

Matrix3f (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 9 floats long

Public methods

get

Added in API level 11

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

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

void load (Matrix3f src)

Sets the values of the matrix to those of the parameter

Parameters
`src`	`Matrix3f`: matrix to load the values from

loadIdentity

Added in API level 11

void loadIdentity ()

Sets the matrix values to identity

loadMultiply

Added in API level 11

void loadMultiply (Matrix3f lhs, 
                Matrix3f rhs)

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

Parameters
`lhs`	`Matrix3f`: left hand side matrix
`rhs`	`Matrix3f`: right hand side matrix

loadRotate

Added in API level 11

void loadRotate (float rot, 
                float x, 
                float y, 
                float z)

Sets current values to be a rotation matrix of certain angle about a given axis

Parameters
`rot`	`float`: angle of rotation
`x`	`float`: rotation axis x
`y`	`float`: rotation axis y
`z`	`float`: rotation axis z

loadRotate

Added in API level 11

void loadRotate (float rot)

Makes the upper 2x2 a rotation matrix of the given angle

Parameters
`rot`	`float`: rotation angle

loadScale

Added in API level 11

void loadScale (float x, 
                float y)

Makes the upper 2x2 a scale matrix of given dimensions

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

loadScale

Added in API level 11

void loadScale (float x, 
                float y, 
                float z)

Sets current values to be a scale matrix of given dimensions

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

loadTranslate

Added in API level 11

void loadTranslate (float x, 
                float y)

Sets current values to be a translation matrix of given dimensions

Parameters
`x`	`float`: translation component x
`y`	`float`: translation component y

multiply

Added in API level 11

void multiply (Matrix3f rhs)

Post-multiplies the current matrix by a given parameter

Parameters
`rhs`	`Matrix3f`: right hand side to multiply by

rotate

Added in API level 11

void rotate (float rot)

Modifies the upper 2x2 of the current matrix by post-multiplying it with a rotation matrix of given angle

Parameters
`rot`	`float`: angle of rotation

rotate

Added in API level 11

void rotate (float rot, 
                float x, 
                float y, 
                float z)

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

Parameters
`rot`	`float`: angle of rotation
`x`	`float`: rotation axis x
`y`	`float`: rotation axis y
`z`	`float`: rotation axis z

scale

Added in API level 11

void scale (float x, 
                float y)

Modifies the upper 2x2 of 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

scale

Added in API level 11

void scale (float x, 
                float y, 
                float z)

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
`z`	`float`: scale component z

set

Added in API level 11

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`

translate

Added in API level 11

void translate (float x, 
                float y)

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

Parameters
`x`	`float`: translation component x
`y`	`float`: translation component y

transpose

Added in API level 11

void transpose ()

Sets the current matrix to its transpose