mitsuba::ContinuousSpectrum Class Reference

Abstract continous spectral power distribution data type, which supports evaluation at arbitrary wavelengths. More...

#include <mitsuba/core/spectrum.h>

Inheritance diagram for mitsuba::ContinuousSpectrum:

Public Member Functions
virtual Float	eval (Float lambda) const =0
virtual Float	average (Float lambdaMin, Float lambdaMax) const
	Integrate the spectral power distribution over a given interval and return the average value. More...
virtual std::string	toString () const =0
	Return a string representation. More...
virtual	~ContinuousSpectrum ()
	Virtual destructor. More...

Detailed Description

Abstract continous spectral power distribution data type, which supports evaluation at arbitrary wavelengths.

Here, the term 'continous' doesn't necessarily mean that the underlying spectrum is continous, but rather emphasizes the fact that it is a function over the reals (as opposed to the discrete spectrum, which only stores samples for a discrete set of wavelengths).

Constructor & Destructor Documentation

virtual mitsuba::ContinuousSpectrum::~ContinuousSpectrum ( )

inlinevirtual

Virtual destructor.

Member Function Documentation

virtual Float mitsuba::ContinuousSpectrum::average ( Float  lambdaMin, Float  lambdaMax  ) const

virtual

Integrate the spectral power distribution over a given interval and return the average value.

Unless overridden in a subclass, the integration is done using adaptive Gauss-Lobatto quadrature.

Parameters

lambdaMin	The lower interval bound in nanometers
lambdaMax	The upper interval bound in nanometers

Remarks

If lambdaMin >= lambdaMax, the implementation will return zero.

Reimplemented in mitsuba::InterpolatedSpectrum.

virtual Float mitsuba::ContinuousSpectrum::eval ( Float  lambda ) const

pure virtual

Evaluate the value of the spectral power distribution at the given wavelength.

Parameters

lambda

A wavelength in nanometers

Implemented in mitsuba::InterpolatedSpectrum, mitsuba::ProductSpectrum, mitsuba::RayleighSpectrum, and mitsuba::BlackBodySpectrum.

virtual std::string mitsuba::ContinuousSpectrum::toString ( ) const

pure virtual

Return a string representation.

Implemented in mitsuba::InterpolatedSpectrum, mitsuba::ProductSpectrum, mitsuba::RayleighSpectrum, and mitsuba::BlackBodySpectrum.

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The documentation for this class was generated from the following file:

• include/mitsuba/core/spectrum.h