SpectralCurve

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

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.

Constructor Summary

Constructors
Constructor Description

SpectralCurve()

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.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SpectralCurve
```
public SpectralCurve()
```
- Method Detail
  - 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
  - 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