lt.monarch.chart.util
Class DirectProjector

java.lang.Object
  lt.monarch.chart.util.DirectProjector

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Projector

public class DirectProjector
extends java.lang.Object
implements Projector, java.io.Serializable

Simple projector, which just converts Point2D objects to java.awt.Point objects

See Also:

Serialized Form

Field Summary

Modifier and Type	Field and Description
static DirectProjector	instance

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone() Clones this projector
Rectangle2D	getProjectionArea() Returns a 2D projection space
Rectangle2D	getProjectionAreaReference() Returns a 2D projection space reference
void	prepare() Prepares the projector.
GeneralPoint	project(GeneralPoint point) Projects a n-dimensional point into a 2D Point.
GeneralPoint	project(GeneralPoint point, GeneralPoint p) Projects a n-dimensional point into a 2D Point.
Polygon2D	project(Rectangle2D r) Projects a rectangle into polygon.
void	setProjectionArea(Rectangle2D r) Sets a 2D projection space

Methods inherited from class java.lang.Object

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

Field Detail

instance

public static final DirectProjector instance

Method Detail

setProjectionArea

public void setProjectionArea(Rectangle2D r)

Description copied from interface: Projector

Sets a 2D projection space

Specified by:

setProjectionArea in interface Projector

Parameters:

r - projection space

getProjectionAreaReference

public Rectangle2D getProjectionAreaReference()

Description copied from interface: Projector

Returns a 2D projection space reference

Specified by:

getProjectionAreaReference in interface Projector

Returns:

projection space

getProjectionArea

public Rectangle2D getProjectionArea()

Description copied from interface: Projector

Returns a 2D projection space

Specified by:

getProjectionArea in interface Projector

Returns:

projection space

prepare

public void prepare()

Description copied from interface: Projector

Prepares the projector. Allows the projector to do some tedious calculations in advance.

Specified by:

prepare in interface Projector

project

public GeneralPoint project(GeneralPoint point)

Description copied from interface: Projector

Projects a n-dimensional point into a 2D Point.

Specified by:

project in interface Projector

Parameters:

point - n-dimensional point

Returns:

creates and returns a 2D Point

project

public GeneralPoint project(GeneralPoint point,
                            GeneralPoint p)

Description copied from interface: Projector

Projects a n-dimensional point into a 2D Point. A 2D point is template is used to avoid unnecessary object creation

Specified by:

project in interface Projector

Parameters:

point - n-dimensional point

p - point object, to be changed

Returns:

template value

project

public Polygon2D project(Rectangle2D r)

Description copied from interface: Projector

Projects a rectangle into polygon.

Specified by:

project in interface Projector

Parameters:

r - 2D rectangle

Returns:

projected polygon

clone

public java.lang.Object clone()

Description copied from interface: Projector

Clones this projector

Specified by:

clone in interface Projector

Overrides:

clone in class java.lang.Object

Returns:

cloned projector