Package org.eclipse.imagen.media.jiffle.runtime

Class IdentityCoordinateTransform

Object

IdentityCoordinateTransform

All Implemented Interfaces:

CoordinateTransform

public class IdentityCoordinateTransform
extends Object
implements CoordinateTransform

An implementation of CoordinateTransform which simple converts input coordinates to integers by rounding. This is the default transform used by Jiffle and is slightly faster than using an identity AffineCoordinateTransform.

Since:

0.1

Author:

Michael Bedward

Field Summary

Fields

Modifier and Type	Field	Description
static final CoordinateTransform	INSTANCE

Method Summary

Modifier and Type	Method	Description
Point	worldToImage(double x, double y, Point p)	Converts from world to image coordinates.

Methods inherited from class Object

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

Field Details

INSTANCE

public static final CoordinateTransform INSTANCE

Method Details

worldToImage

public Point worldToImage(double x,
 double y,
 Point p)

Converts from world to image coordinates. If p is not null it will be set to the image coordinates, otherwise a new destination object will be created. In both cases, the resulting point is returned.

Specified by:

worldToImage in interface CoordinateTransform

Parameters:

x - world X ordinate

y - world Y ordinate

p - object to receive image coordinates (may be null)

Returns:

image coordinates