org.jpedal.utils

Class Matrix

java.lang.Object

org.jpedal.utils.Matrix

public class Matrix
extends Object

provide matrix functionality used in PDF to calculate co-ords

Constructor Summary

Constructors

Constructor and Description
Matrix()

Method Summary

Modifier and Type	Method and Description
static float[][]	concatenate(float[][] m1, float[][] m2)
static float[][]	inverse(float[][] input_matrix) Calculates the inverse of a 3 * 3 matrix return result
static float[][]	multiply(float[][] matrix1, float[][] matrix2) multiply two 3 * 3 matrices together & return result
static float[][]	multiplyAny(float[][] m1, float[][] m2)
static void	print(float[][] matrix1) show matrix (used to debug)
static void	show(float[][] matrix1) show matrix (used to debug)
static void	show(int[][] matrix1) show matrix (used to debug)
static void	showBBox(float[] BBox)
static float[][]	toMatrix(AffineTransform xform) please call this function only on device bound transformation not good for general use cases;
static float[]	transformPoint(float[][] mm, float x, float y) transform a point i.e:(x,y) based on given matrix

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Matrix

public Matrix()

Method Detail

multiply

public static final float[][] multiply(float[][] matrix1,
                                       float[][] matrix2)

multiply two 3 * 3 matrices together & return result

inverse

public static final float[][] inverse(float[][] input_matrix)

Calculates the inverse of a 3 * 3 matrix return result

concatenate

public static final float[][] concatenate(float[][] m1,
                                          float[][] m2)

toMatrix

public static float[][] toMatrix(AffineTransform xform)

please call this function only on device bound transformation not good for general use cases;

Parameters:

xform -

Returns:

transformPoint

public static float[] transformPoint(float[][] mm,
                                     float x,
                                     float y)

transform a point i.e:(x,y) based on given matrix

Parameters:

mm -

x -

y -

Returns:

show

public static final void show(float[][] matrix1)

show matrix (used to debug)

print

public static final void print(float[][] matrix1)

show matrix (used to debug)

showBBox

public static final void showBBox(float[] BBox)

show

public static final void show(int[][] matrix1)

show matrix (used to debug)

multiplyAny

public static float[][] multiplyAny(float[][] m1,
                                    float[][] m2)