Package org.apache.xmlgraphics.java2d

Class TransformStackElement

java.lang.Object

org.apache.xmlgraphics.java2d.TransformStackElement

All Implemented Interfaces:

java.lang.Cloneable

public abstract class TransformStackElement
extends java.lang.Object
implements java.lang.Cloneable

Contains a description of an elementary transform stack element, such as a rotate or translate. A transform stack element has a type and a value, which is an array of double values.

Version:

$Id: TransformStackElement.java 1732018 2016-02-24 04:51:06Z gadams $ Originally authored by Vincent Hardy and Paul Evenblij.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TransformStackElement(TransformType type, double[] transformParameters)

Method Summary

Modifier and Type	Method	Description
java.lang.Object	clone()
boolean	concatenate(TransformStackElement stackElement)
static TransformStackElement	createGeneralTransformElement(java.awt.geom.AffineTransform txf)
static TransformStackElement	createRotateElement(double theta)
static TransformStackElement	createScaleElement(double scaleX, double scaleY)
static TransformStackElement	createShearElement(double shearX, double shearY)
static TransformStackElement	createTranslateElement(double tx, double ty)
double[]	getTransformParameters()
TransformType	getType()
boolean	isIdentity()

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformStackElement

protected TransformStackElement(TransformType type,
                                double[] transformParameters)

Parameters:

type - transform type

transformParameters - parameters for transform

Method Detail

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object

Returns:

an object which is a deep copy of this one

createTranslateElement

public static TransformStackElement createTranslateElement(double tx,
                                                           double ty)

createRotateElement

public static TransformStackElement createRotateElement(double theta)

createScaleElement

public static TransformStackElement createScaleElement(double scaleX,
                                                       double scaleY)

createShearElement

public static TransformStackElement createShearElement(double shearX,
                                                       double shearY)

createGeneralTransformElement

public static TransformStackElement createGeneralTransformElement(java.awt.geom.AffineTransform txf)

isIdentity

public boolean isIdentity()

Returns:

true iff this transform is the identity transform

getTransformParameters

public double[] getTransformParameters()

Returns:

array of values containing this transform element's parameters

getType

public TransformType getType()

Returns:

this transform type

concatenate

public boolean concatenate(TransformStackElement stackElement)