Package ch.sahits.game.openpatrician.javafx.effects.transform

Class PolygonPerspectiveTransformation

java.lang.Object

ch.sahits.game.openpatrician.javafx.effects.transform.PolygonPerspectiveTransformation

public class PolygonPerspectiveTransformation
extends java.lang.Object

The perspective transformation can be expressed as a matrix multiplication: http://upload.wikimedia.org/math/d/6/5/d65e582afbf418e4989971cdee42a167.png. The transformation matrix of a polygon is defined by the transformation of the bounding box of the polygon. The general case where the four corners of the bounding box are translated can be reduced to the special case where only three corners are translated. Therefore this transformation algorithm will take the source and destination points in 2D space of the three corners that are moved.

Author:

andi

Constructor Summary

Constructors

Constructor	Description
PolygonPerspectiveTransformation()	Initializing the transormation by adding transformation listeners on the points.

Method Summary

Modifier and Type	Method	Description
Translation2D	getPoint1()
Translation2D	getPoint2()
Translation2D	getPoint3()
javafx.beans.property.ObjectProperty<Translation2D>	point1Property()
javafx.beans.property.ObjectProperty<Translation2D>	point2Property()
javafx.beans.property.ObjectProperty<Translation2D>	point3Property()
void	setPoint1(Translation2D value)
void	setPoint2(Translation2D value)
void	setPoint3(Translation2D value)
javafx.scene.shape.Polygon	transform(javafx.scene.shape.Polygon polygon)	Transform a polygon using the defined perspective transformation

Methods inherited from class java.lang.Object

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

Constructor Detail

PolygonPerspectiveTransformation

public PolygonPerspectiveTransformation()

Initializing the transormation by adding transformation listeners on the points.

Method Detail

transform

public javafx.scene.shape.Polygon transform(javafx.scene.shape.Polygon polygon)

Transform a polygon using the defined perspective transformation

Parameters:

polygon - untransformed polygon

Returns:

polygon with applied transformation.

getPoint3

public Translation2D getPoint3()

setPoint3

public void setPoint3(Translation2D value)

point3Property

public javafx.beans.property.ObjectProperty<Translation2D> point3Property()

getPoint2

public Translation2D getPoint2()

setPoint2

public void setPoint2(Translation2D value)

point2Property

public javafx.beans.property.ObjectProperty<Translation2D> point2Property()

getPoint1

public Translation2D getPoint1()

setPoint1

public void setPoint1(Translation2D value)

point1Property

public javafx.beans.property.ObjectProperty<Translation2D> point1Property()