cse1030.drawing

Class Transformation

java.lang.Object

cse1030.drawing.Transformation

Direct Known Subclasses:

Rotation, Scale, Shear

public abstract class Transformation
extends Object

Geometric transformation of a 2D point. Objects of this class can transform a point, changing its coordinates. Alternatively, the transformation can be applied to a point to produce a new point leaving the original point unchanged.

Author:

CSE1030Z

Constructor Summary

Constructors

Constructor and Description
Transformation(String name) Constructs a transformation with the given name.

Method Summary

Methods

Modifier and Type	Method and Description
abstract Point2D	apply(Point2D p) Apply the transformation to a point to produce a new point leaving the original point unchanged.
String	getName() Get the name of the transformation.
String	toString() Get a string representation of the transformation.
abstract void	transform(Point2D p) Transform a point changing its coordinates.

Methods inherited from class java.lang.Object

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

Constructor Detail

Transformation

public Transformation(String name)

Constructs a transformation with the given name.

Parameters:

name - the name of the transformation

Method Detail

getName

public final String getName()

Get the name of the transformation.

Returns:

the name of the transformation

toString

public String toString()

Get a string representation of the transformation. This abstract class provides an implementation that returns the name of the transformation; subclasses are expected to override this method to provide additional information about the transformation.

Overrides:

toString in class Object

See Also:

Object.toString()

Returns:

the name of the transformation as a string

transform

public abstract void transform(Point2D p)

Transform a point changing its coordinates.

Parameters:

p - the point to transform

apply

public abstract Point2D apply(Point2D p)

Apply the transformation to a point to produce a new point leaving the original point unchanged.

Parameters:

p - the point to apply the transformation to

Returns:

a new point equal to the transformation applied to the original point