Matrix

java.lang.Object
- ej.microvg.Matrix

```
public class Matrix
extends Object
```
Represents a 3x3 matrix for transforming coordinates.

Constructor Summary

Constructors
Constructor and Description

Matrix()
Creates an identity matrix.

Matrix(Matrix source)
Creates a matrix that is a deep copy of the given matrix.

Constructors
Constructor and Description
`Matrix()` Creates an identity matrix.
`Matrix(Matrix source)` Creates a matrix that is a deep copy of the given matrix.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`float[]`	`getSNIContext()` Returns the SNI context data of this matrix.
`void`	`postConcat(Matrix other)` Postconcats the matrix with the specified matrix.
`void`	`postRotate(float degrees)` Postconcats the matrix with the specified rotation.
`void`	`postScale(float sx, float sy)` Postconcats the matrix with the specified scale.
`void`	`postTranslate(float dx, float dy)` Postconcats the matrix with the specified translation.
`void`	`preConcat(Matrix other)` Preconcats the matrix with the specified matrix.
`void`	`preRotate(float degrees)` Preconcats the matrix with the specified rotation.
`void`	`preScale(float sx, float sy)` Preconcats the matrix with the specified scale.
`void`	`preTranslate(float dx, float dy)` Preconcats the matrix with the specified translation.
`void`	`reset()` Resets the matrix to identity.
`void`	`set(Matrix source)` Deep copies the given matrix into this matrix.
`void`	`setConcat(Matrix a, Matrix b)` Sets the matrix to the concatenation of the two specified matrices.
`void`	`setRotate(float degrees)` Sets the matrix to rotate about (0,0) by the specified number of degrees.
`void`	`setScale(float sx, float sy)` Sets the matrix to scale by (sx, sy).
`void`	`setTranslate(float dx, float dy)` Sets the matrix to translate by (dx, dy).

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Matrix
```
public Matrix()
```
    Creates an identity matrix.
  - Matrix
```
public Matrix(Matrix source)
```
    Creates a matrix that is a deep copy of the given matrix.
    
    Parameters:
    
    source - the matrix to copy from
- Method Detail
  - getSNIContext
```
public float[] getSNIContext()
```
    Returns the SNI context data of this matrix.
    The SNI context can be used to call a native method with SNI. This allows to identify and to use an matrix in the native world in order to perform operations with this matrix.
    The data format is implementation specific.
    
    Returns:
    
    the SNI context of this matrix.
  - postConcat
```
public void postConcat(Matrix other)
```
    Postconcats the matrix with the specified matrix. M' = other * M
    
    Parameters:
    
    other - the matrix to concat with
  - postRotate
```
public void postRotate(float degrees)
```
    Postconcats the matrix with the specified rotation. M' = R(degrees) * M
    
    Parameters:
    
    degrees - the degrees to rotate
  - postScale
```
public void postScale(float sx,
                      float sy)
```
    Postconcats the matrix with the specified scale. M' = S(sx, sy) * M
    
    Parameters:
    
    sx - the scale on x
    
    sy - the scale on y
  - postTranslate
```
public void postTranslate(float dx,
                          float dy)
```
    Postconcats the matrix with the specified translation. M' = T(dx, dy) * M
    
    Parameters:
    
    dx - the translation on x
    
    dy - the translation on y
  - preConcat
```
public void preConcat(Matrix other)
```
    Preconcats the matrix with the specified matrix. M' = M * other
    
    Parameters:
    
    other - the matrix to concat with
  - preRotate
```
public void preRotate(float degrees)
```
    Preconcats the matrix with the specified rotation. M' = M * R(degrees)
    
    Parameters:
    
    degrees - the degrees to rotate
  - preScale
```
public void preScale(float sx,
                     float sy)
```
    Preconcats the matrix with the specified scale. M' = M * S(sx, sy)
    
    Parameters:
    
    sx - the scale on x
    
    sy - the scale on y
  - preTranslate
```
public void preTranslate(float dx,
                         float dy)
```
    Preconcats the matrix with the specified translation. M' = M * T(dx, dy)
    
    Parameters:
    
    dx - the translation on x
    
    dy - the translation on y
  - reset
```
public void reset()
```
    Resets the matrix to identity.
  - set
```
public void set(Matrix source)
```
    Deep copies the given matrix into this matrix.
    
    Parameters:
    
    source - the matrix to copy from
  - setConcat
```
public void setConcat(Matrix a,
                      Matrix b)
```
    Sets the matrix to the concatenation of the two specified matrices.
    Either of the two matrices may also be the target matrix, that is matrixA.setConcat(matrixA, matrixB); is valid.
    
    Parameters:
    
    a - the first matrix
    
    b - the second matrix
  - setRotate
```
public void setRotate(float degrees)
```
    Sets the matrix to rotate about (0,0) by the specified number of degrees.
    
    Parameters:
    
    degrees - the degrees to rotate
  - setScale
```
public void setScale(float sx,
                     float sy)
```
    Sets the matrix to scale by (sx, sy).
    
    Parameters:
    
    sx - the scale on x
    
    sy - the scale on y
  - setTranslate
```
public void setTranslate(float dx,
                         float dy)
```
    Sets the matrix to translate by (dx, dy).
    
    Parameters:
    
    dx - the translation on x
    
    dy - the translation on y

Class Matrix

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Matrix

Matrix

Method Detail

getSNIContext

postConcat

postRotate

postScale

postTranslate

preConcat

preRotate

preScale

preTranslate

reset

set

setConcat

setRotate

setScale

setTranslate