TableLookUpLayer Class Reference

#include <HomogeneousLayer.h>

Inheritance diagram for TableLookUpLayer:

Collaboration diagram for TableLookUpLayer:

List of all members.

Public Member Functions
	TableLookUpLayer ()
	~TableLookUpLayer ()
	TableLookUpLayer (Array2D< float > *transMat, StructureObject *prevStructureObject, std::vector< float > &rLambda)
virtual int	Process (WavePacket &wp, int up_down, int internal) const
Protected Member Functions
double	Interp (double X1, double X2, double Y1, double Y2, double X) const
Protected Attributes
Array2D< float > *	mTransMatrix

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Detailed Description

This class represents a layer that reflects and transmitt light according to predefined transmittance and/or transmittance values tabulated as function of incident angle onto the layer, and wavelength. No layer boundary scattering is performed, therefore the layer has no refractive index Upon reflectance or transmittance, the wave packet will jump over the next surface and go directly to the next layer. Reflection is specular, transmission does not change the direction of the wave packet. The layer has zero thickness and must be delimited by two surface of equal constant height map (flat topography and same z-offset) TODO: test with SurfaceTNSubflat

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Constructor & Destructor Documentation

TableLookUpLayer::TableLookUpLayer

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TableLookUpLayer::~TableLookUpLayer

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TableLookUpLayer::TableLookUpLayer	(	Array2D< float > *	transMat,
		StructureObject *	prevStructureObject,
		std::vector< float > &	rLambda
	)

Constructor. Takes the input transmittance matrix and interpolate it for the simulated wavelenghts

Parameters:

transMat	pointer to the transmittance matrix.
prevStructureObject	pointer to the previous paper object.
rLambda	the simulated wavelengths.

Set object type so that no surface scattering at layer boundary is performed

Interpolate the transmission matrix for the simulated incident wavelenghts

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Member Function Documentation

double TableLookUpLayer::Interp	(	double	X1,
		double	X2,
		double	Y1,
		double	Y2,
		double	X
	)		const [protected]

Linear interpolation between two points If X<X1 returns Y1, if X>X2 returns Y2

NO extrapolation if outside, return extremes

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int TableLookUpLayer::Process	(	WavePacket &	wp,
		int	up_down,
		int	internal
	)		const [virtual]

Picks the wavelength of the wave packet and interpolate transmittance/reflectance for the incident angle onto the layer

Parameters:

wp	the wave packet
up_down	1 if wp going up, -1 if wp going down
internal	tells if the wave packet should start within layer or if layer boundary should be applied first. Always 1 for this layer

Returns:

1 if wave packet going up, -1 if going down

Find the nearest incident cosine angle and interpolate for incident angle First row is wavelengths and first columns is incident angle in radians

Get the transmittance value

If reflected apply specular reflection return 1 ( going up), -1 (going down)

Implements StructureObject.

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Member Data Documentation

Array2D<float>* TableLookUpLayer::mTransMatrix [protected]

The interpolated matrix of transmittance over incident angles and wavelengths

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

• OpenPaperOpt/HomogeneousLayer.h
• OpenPaperOpt/HomogeneousLayer.cpp