Package com.lowagie.text.pdf.parser

Class Matrix

java.lang.Object

com.lowagie.text.pdf.parser.Matrix

public class Matrix
extends 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
static final int	I11	an array position referring to a specific value in the matrix.
static final int	I12	an array position referring to a specific value in the matrix.
static final int	I13	an array position referring to a specific value in the matrix.
static final int	I21	an array position referring to a specific value in the matrix.
static final int	I22	an array position referring to a specific value in the matrix.
static final int	I23	an array position referring to a specific value in the matrix.
static final int	I31	an array position referring to a specific value in the matrix.
static final int	I32	an array position referring to a specific value in the matrix.
static final int	I33	an array position referring to a specific value in the matrix.

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

Modifier and Type	Method	Description
boolean	equals(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
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 Details

I11

public static final int I11

an array position referring to a specific value in the matrix.

See Also:

• Constant Field Values

I12

public static final int I12

an array position referring to a specific value in the matrix.

See Also:

• Constant Field Values

I13

public static final int I13

an array position referring to a specific value in the matrix.

See Also:

• Constant Field Values

I21

public static final int I21

an array position referring to a specific value in the matrix.

See Also:

• Constant Field Values

I22

public static final int I22

an array position referring to a specific value in the matrix.

See Also:

• Constant Field Values

I23

public 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

public static final int I33

an array position referring to a specific value in the matrix.

See Also:

• Constant Field Values

Constructor Details

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 Details

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(Object obj)

Checks equality of matrices.

Overrides:

equals in class 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 Object

Returns:

the hash code of this object

See Also:

• Object.hashCode()

toString

public String toString()

Generates a String representating of the matrix.

Overrides:

toString in class Object

Returns:

the values, delimited with tabs and newlines.

See Also:

• Object.toString()