Package org.sunflow.image
Class SpectralCurve
- java.lang.Object
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- org.sunflow.image.SpectralCurve
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- Direct Known Subclasses:
BlackbodySpectrum
,ChromaticitySpectrum
,ConstantSpectralCurve
,IrregularSpectralCurve
,RegularSpectralCurve
public abstract class SpectralCurve extends java.lang.Object
This class is an abstract interface to sampled or analytic spectral data.
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Constructor Summary
Constructors Constructor Description SpectralCurve()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract float
sample(float lambda)
This function determines the actual spectral curve data.XYZColor
toXYZ()
Convert this curve to a tristimulus CIE XYZ color by integrating against the CIE color matching functions.
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Method Detail
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sample
public abstract float sample(float lambda)
This function determines the actual spectral curve data. Note that the lambda parameter is assumed to be in nanometers.- Parameters:
lambda
- wavelength to sample in nanometers- Returns:
- the value of the spectral curve at this point
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toXYZ
public final XYZColor toXYZ()
Convert this curve to a tristimulus CIE XYZ color by integrating against the CIE color matching functions.- Returns:
- XYZColor that represents this spectra
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