org.sunflow.image
Class ChromaticitySpectrum

java.lang.Object
  org.sunflow.image.SpectralCurve
      org.sunflow.image.ChromaticitySpectrum

public final class ChromaticitySpectrum
extends SpectralCurve

This spectral curve represents a given (x,y) chromaticity pair as explained in the sun/sky paper (section A.5)

Constructor Summary

ChromaticitySpectrum(float x, float y)

Method Summary

static XYZColor	get(float x, float y)
float	sample(float lambda) This function determines the actual spectral curve data.

Methods inherited from class org.sunflow.image.SpectralCurve

toXYZ

Methods inherited from class java.lang.Object

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

Constructor Detail

ChromaticitySpectrum

public ChromaticitySpectrum(float x,
                            float y)

Method Detail

sample

public float sample(float lambda)

Description copied from class: SpectralCurve

This function determines the actual spectral curve data. Note that the lambda parameter is assumed to be in nanometers.

Specified by:

sample in class SpectralCurve

Parameters:

lambda - wavelength to sample in nanometers

Returns:

the value of the spectral curve at this point

get

public static final XYZColor get(float x,
                                 float y)