de.grogra.imp3d.spectral

Class IrregularSpectralCurve

java.lang.Object

de.grogra.persistence.ShareableBase

de.grogra.imp3d.spectral.SpectralCurve

de.grogra.imp3d.spectral.IrregularSpectralCurve

All Implemented Interfaces:

Manageable, Shareable

Direct Known Subclasses:

CIENormSpectralCurve

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

Nested Classes

Modifier and Type	Class and Description
static class	IrregularSpectralCurve.Type

Field Summary

Fields

Modifier and Type	Field and Description
static IrregularSpectralCurve.Type	$TYPE
protected float[]	amplitudes
static SCOType.Field	amplitudes$FIELD
protected float[]	wavelengths
static SCOType.Field	wavelengths$FIELD

Constructor Summary

Constructors

Constructor and Description
IrregularSpectralCurve()
IrregularSpectralCurve(float[] wavelengths, float[] amplitudes) Define an irregular spectral curve from the provided (sorted) wavelengths and amplitude data.

Method Summary

Methods

Modifier and Type	Method and Description
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

$TYPE

public static final IrregularSpectralCurve.Type $TYPE

amplitudes

protected float[] amplitudes

amplitudes$FIELD

public static final SCOType.Field amplitudes$FIELD

wavelengths

protected float[] wavelengths

wavelengths$FIELD

public static final SCOType.Field wavelengths$FIELD

Constructor Detail

IrregularSpectralCurve

public IrregularSpectralCurve()

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.

Parameters:

wavelengths - sampled wavelengths in nm

amplitudes - amplitude of the curve at the sampled points

Method Detail

getManageableType

public ManageableType getManageableType()

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