org.apache.batik.ext.awt.image

Class PointLight

java.lang.Object

org.apache.batik.ext.awt.image.AbstractLight

org.apache.batik.ext.awt.image.PointLight

All Implemented Interfaces:

Light

public class PointLight
extends AbstractLight

A light source which emits a light of constant intensity in all directions.

Version:

$Id: PointLight.java 1733416 2016-03-03 07:07:13Z gadams $

Author:

Vincent Hardy

Constructor Summary

Constructors

Constructor and Description
PointLight(double lightX, double lightY, double lightZ, Color lightColor)

Method Summary

Methods

Modifier and Type	Method and Description
void	getLight(double x, double y, double z, double[] L) Computes the light vector in (x, y, z)
double	getLightX()
double	getLightY()
double	getLightZ()
boolean	isConstant()

Methods inherited from class org.apache.batik.ext.awt.image.AbstractLight

getColor, getLightMap, getLightRow, setColor, sRGBToLsRGB

Methods inherited from class java.lang.Object

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

Constructor Detail

PointLight

public PointLight(double lightX,
          double lightY,
          double lightZ,
          Color lightColor)

Method Detail

getLightX

public double getLightX()

Returns:

the light's x position

getLightY

public double getLightY()

Returns:

the light's y position

getLightZ

public double getLightZ()

Returns:

the light's z position

isConstant

public boolean isConstant()

Specified by:

isConstant in interface Light

Overrides:

isConstant in class AbstractLight

Returns:

true if the light is constant over the whole surface

getLight

public final void getLight(double x,
            double y,
            double z,
            double[] L)

Computes the light vector in (x, y, z)

Parameters:

x - x-axis coordinate where the light should be computed

y - y-axis coordinate where the light should be computed

z - z-axis coordinate where the light should be computed

L - array of length 3 where the result is stored