Class IrregularSpectralCurve

  extended by de.grogra.persistence.ShareableBase
      extended by de.grogra.imp3d.spectral.SpectralCurve
          extended by de.grogra.imp3d.spectral.IrregularSpectralCurve
All Implemented Interfaces:
Manageable, Shareable

public class IrregularSpectralCurve
extends SpectralCurve

This class allows spectral curves to be defined from irregularly sampled data. Note that the wavelength array is assumed to be sorted low to high. Any values beyond the defined range will simply be extended to infinity from the end points. Points inside the valid range will be linearly interpolated between the two nearest samples. No explicit error checking is performed, but this class will run into ArrayIndexOutOfBoundsExceptions if the array lengths don't match.

Nested Class Summary
static class IrregularSpectralCurve.Type
Field Summary
static IrregularSpectralCurve.Type $TYPE
static SCOType.Field amplitudes$FIELD
static SCOType.Field wavelengths$FIELD
Constructor Summary
IrregularSpectralCurve(float[] wavelengths, float[] amplitudes)
          Define an irregular spectral curve from the provided (sorted) wavelengths and amplitude data.
Method Summary
 ManageableType getManageableType()
 float sample(float lambda)
          This function determines the actual spectral curve data.
Methods inherited from class de.grogra.imp3d.spectral.SpectralCurve
toXYZ, toXYZ
Methods inherited from class de.grogra.persistence.ShareableBase
addReference, appendReferencesTo, fieldModified, getProvider, getStamp, initProvider, manageableReadResolve, manageableWriteReplace, removeReference
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail


public static final IrregularSpectralCurve.Type $TYPE


public static final SCOType.Field amplitudes$FIELD


public static final SCOType.Field wavelengths$FIELD
Constructor Detail


public IrregularSpectralCurve()


public IrregularSpectralCurve(float[] wavelengths,
                              float[] amplitudes)
Define an irregular spectral curve from the provided (sorted) wavelengths and amplitude data. The wavelength array is assumed to contain values in nanometers. Array lengths must match.

wavelengths - sampled wavelengths in nm
amplitudes - amplitude of the curve at the sampled points
Method Detail


public ManageableType getManageableType()


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
lambda - wavelength to sample in nanometers
the value of the spectral curve at this point