math.geom2d.transform
Class GenericAffineTransform2D

java.lang.Object
  math.geom2d.transform.AbstractAffineTransform2D
      math.geom2d.transform.GenericAffineTransform2D

All Implemented Interfaces:

AffineTransform2D, Bijection2D, Transform2D

Direct Known Subclasses:

AbstractAffineTransform2D.Identity2D

public class GenericAffineTransform2D
extends AbstractAffineTransform2D

An implementation of IAffineTransform2D which uses an internal matrix for storing transform parameters.
Behavior of this class will be similar to java.awt.geom.AffineTransform.

Nested Class Summary

Nested classes/interfaces inherited from class math.geom2d.transform.AbstractAffineTransform2D

AbstractAffineTransform2D.Identity2D

Field Summary

protected double	m00
protected double	m01
protected double	m02
protected double	m10
protected double	m11
protected double	m12

Constructor Summary

GenericAffineTransform2D()
Main constructor

GenericAffineTransform2D(java.awt.geom.AffineTransform trans)

GenericAffineTransform2D(AffineTransform2D trans)
constructor by copy of an existing transform

GenericAffineTransform2D(double[] coefs)

GenericAffineTransform2D(double xx, double yx, double xy, double yy)

GenericAffineTransform2D(double xx, double yx, double tx, double xy, double yy, double ty)

Method Summary

GenericAffineTransform2D	compose(AffineTransform2D that) Return the composition of this affine transform with the given affine transform.
double[][]	getAffineMatrix() return matrix of the transform coefficients.
double[]	getCoefficients() return coefficients of the transform.
AffineTransform2D	getInverseTransform()
void	preConcatenate(GenericAffineTransform2D trans) Combine this transform with another AffineTransform.
void	setToIdentity()
void	setTransform(double n00, double n01, double n02, double n10, double n11, double n12)
void	setTransform(GenericAffineTransform2D trans)
Point2D[]	transform(java.awt.geom.Point2D[] src, Point2D[] dst) Transforms an array of points, and returns the transformed points.
Point2D	transform(java.awt.geom.Point2D src, Point2D dst) Transforms a point, share memory

Methods inherited from class math.geom2d.transform.AbstractAffineTransform2D

createRotation, createRotation, createRotation, createScaling, createScaling, createTranslation, createTranslation, equals, isDirect, isDirect, isIdentity, isIdentity, isIsometry, isIsometry, isMotion, isMotion, isSimilarity, isSimilarity, transform

Methods inherited from class java.lang.Object

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

Field Detail

m00

protected double m00

m01

protected double m01

m02

protected double m02

m10

protected double m10

m11

protected double m11

m12

protected double m12

Constructor Detail

GenericAffineTransform2D

public GenericAffineTransform2D()

Main constructor

GenericAffineTransform2D

public GenericAffineTransform2D(AffineTransform2D trans)

constructor by copy of an existing transform

GenericAffineTransform2D

public GenericAffineTransform2D(double[] coefs)

GenericAffineTransform2D

public GenericAffineTransform2D(double xx,
                                double yx,
                                double tx,
                                double xy,
                                double yy,
                                double ty)

GenericAffineTransform2D

public GenericAffineTransform2D(double xx,
                                double yx,
                                double xy,
                                double yy)

GenericAffineTransform2D

public GenericAffineTransform2D(java.awt.geom.AffineTransform trans)

Method Detail

getCoefficients

public double[] getCoefficients()

return coefficients of the transform. Result is an array of 6 double.

getAffineMatrix

public double[][] getAffineMatrix()

Description copied from interface: AffineTransform2D

return matrix of the transform coefficients. Result is a 2x3 array of double.

getInverseTransform

public AffineTransform2D getInverseTransform()

compose

public GenericAffineTransform2D compose(AffineTransform2D that)

Description copied from interface: AffineTransform2D

Return the composition of this affine transform with the given affine transform. If transforms are represented by matrices this and that, the result can be represented by matrix this*that.

Specified by:

compose in interface AffineTransform2D

Overrides:

compose in class AbstractAffineTransform2D

Parameters:

that - the transform to compose with

Returns:

the composition of this transform with the given transform

setTransform

public void setTransform(double n00,
                         double n01,
                         double n02,
                         double n10,
                         double n11,
                         double n12)

setTransform

public void setTransform(GenericAffineTransform2D trans)

setToIdentity

public void setToIdentity()

preConcatenate

public void preConcatenate(GenericAffineTransform2D trans)

Combine this transform with another AffineTransform.

transform

public Point2D[] transform(java.awt.geom.Point2D[] src,
                           Point2D[] dst)

Description copied from interface: Transform2D

Transforms an array of points, and returns the transformed points.

Specified by:

transform in interface Transform2D

Overrides:

transform in class AbstractAffineTransform2D

transform

public Point2D transform(java.awt.geom.Point2D src,
                         Point2D dst)

Description copied from interface: Transform2D

Transforms a point, share memory

Specified by:

transform in interface Transform2D

Overrides:

transform in class AbstractAffineTransform2D