java.lang.Object
- com.aowagie.text.pdf.parser.Matrix

```
class Matrix
extends java.lang.Object
```
Keeps all the values of a 3 by 3 matrix and allows you to do some math with matrices.

Since:

2.1.4

Field Summary

Fields
Modifier and Type	Field	Description
`private static int`	`I11`	an array position referring to a specific value in the matrix.
`private static int`	`I12`	an array position referring to a specific value in the matrix.
`private static int`	`I13`	an array position referring to a specific value in the matrix.
`private static int`	`I21`	an array position referring to a specific value in the matrix.
`private static int`	`I22`	an array position referring to a specific value in the matrix.
`private static int`	`I23`	an array position referring to a specific value in the matrix.
`static int`	`I31`	an array position referring to a specific value in the matrix.
`static int`	`I32`	an array position referring to a specific value in the matrix.
`private static int`	`I33`	an array position referring to a specific value in the matrix.
`private float[]`	`vals`	the values inside the matrix (the identity matrix by default).

Constructor Summary

Constructors
Constructor	Description
`Matrix()`	constructs a new Matrix with identity.
`Matrix(float tx, float ty)`	Constructs a matrix that represents translation
`Matrix(float a, float b, float c, float d, float e, float f)`	Creates a Matrix with 6 specified entries

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object obj)`	Checks equality of matrices.
`float`	`get(int index)`	Gets a specific value inside the matrix.
`int`	`hashCode()`	Generates a hash code for this object.
`Matrix`	`multiply(Matrix by)`	multiplies this matrix by 'b' and returns the result See http://en.wikipedia.org/wiki/Matrix_multiplication
`java.lang.String`	`toString()`	Generates a String representating of the matrix.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - I11
```
private static final int I11
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - I12
```
private static final int I12
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - I13
```
private static final int I13
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - I21
```
private static final int I21
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - I22
```
private static final int I22
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - I23
```
private static final int I23
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - I31
```
public static final int I31
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - I32
```
public static final int I32
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - I33
```
private static final int I33
```
    an array position referring to a specific value in the matrix.
    
    See Also:
    
    Constant Field Values
  - vals
```
private final float[] vals
```
    the values inside the matrix (the identity matrix by default).
- Constructor Detail
  - Matrix
```
public Matrix()
```
    constructs a new Matrix with identity.
  - Matrix
```
public Matrix(float tx,
              float ty)
```
    Constructs a matrix that represents translation
    
    Parameters:
    
    tx -
    
    ty -
  - Matrix
```
public Matrix(float a,
              float b,
              float c,
              float d,
              float e,
              float f)
```
    Creates a Matrix with 6 specified entries
    
    Parameters:
    
    a -
    
    b -
    
    c -
    
    d -
    
    e -
    
    f -
- Method Detail
  - get
```
public float get(int index)
```
    Gets a specific value inside the matrix.
    
    Parameters:
    
    index - an array index corresponding with a value inside the matrix
    
    Returns:
    
    the value at that specific position.
  - multiply
```
public Matrix multiply(Matrix by)
```
    multiplies this matrix by 'b' and returns the result See http://en.wikipedia.org/wiki/Matrix_multiplication
    
    Parameters:
    
    by - The matrix to multiply by
    
    Returns:
    
    the resulting matrix
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Checks equality of matrices.
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    obj - the other Matrix that needs to be compared with this matrix.
    
    Returns:
    
    true if both matrices are equal
    
    See Also:
    
    Object.equals(java.lang.Object)
  - hashCode
```
public int hashCode()
```
    Generates a hash code for this object.
    
    Overrides:
    
    hashCode in class java.lang.Object
    
    Returns:
    
    the hash code of this object
    
    See Also:
    
    Object.hashCode()
  - toString
```
public java.lang.String toString()
```
    Generates a String representating of the matrix.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    the values, delimited with tabs and newlines.
    
    See Also:
    
    Object.toString()

Class Matrix

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

I11

I12

I13

I21

I22

I23

I31

I32

I33

vals

Constructor Detail

Matrix

Matrix

Matrix

Method Detail

get

multiply

equals

hashCode

toString