Interpolation routines for cubic and higher order interpolation. More...

#include <iostream>
#include "interpolation_poly.h"
#include "interpolation.h"
#include "logic.h"
#include "arts_omp.h"

Macros
#define	LOOPW(x) for ( ConstIterator1D x=t##x.w.begin(); x!=t##x.w.end(); ++x )
	Macro for interpolation weight loops. More...

#define	LOOPIDX(x) for (ArrayOfIndex::const_iterator x=t##x.idx.begin(); x!=t##x.idx.end(); ++x)
	Macro for interpolation index loops. More...

Functions
Index	IMAX (Index a, Index b)
	Return the maximum of two integer numbers. More...

Index	IMIN (Index a, Index b)
	Return the minimum of two integer numbers. More...

void	gridpos_poly (ArrayOfGridPosPoly &gp, ConstVectorView old_grid, ConstVectorView new_grid, const Index order, const Numeric &extpolfac)
	Set up grid positions for higher order interpolation. More...

void	gridpos_poly (GridPosPoly &gp, ConstVectorView old_grid, const Numeric &new_grid, const Index order, const Numeric &extpolfac)
	gridpos_poly More...

ostream &	operator<< (ostream &os, const GridPosPoly &gp)
	Output operator for GridPosPoly. More...

void	interpweights (VectorView itw, const GridPosPoly &tc)
	Red 1D interpolation weights. More...

void	interpweights (VectorView itw, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 2D interpolation weights. More...

void	interpweights (VectorView itw, const GridPosPoly &tp, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 3D interpolation weights. More...

void	interpweights (VectorView itw, const GridPosPoly &tb, const GridPosPoly &tp, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 4D interpolation weights. More...

void	interpweights (VectorView itw, const GridPosPoly &ts, const GridPosPoly &tb, const GridPosPoly &tp, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 5D interpolation weights. More...

void	interpweights (VectorView itw, const GridPosPoly &tv, const GridPosPoly &ts, const GridPosPoly &tb, const GridPosPoly &tp, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 6D interpolation weights. More...

Numeric	interp (ConstVectorView itw, ConstVectorView a, const GridPosPoly &tc)
	Red 1D Interpolate. More...

Numeric	interp (ConstVectorView itw, ConstMatrixView a, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 2D Interpolate. More...

Numeric	interp (ConstVectorView itw, ConstTensor3View a, const GridPosPoly &tp, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 3D Interpolate. More...

Numeric	interp (ConstVectorView itw, ConstTensor4View a, const GridPosPoly &tb, const GridPosPoly &tp, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 4D Interpolate. More...

Numeric	interp (ConstVectorView itw, ConstTensor5View a, const GridPosPoly &ts, const GridPosPoly &tb, const GridPosPoly &tp, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 5D Interpolate. More...

Numeric	interp (ConstVectorView itw, ConstTensor6View a, const GridPosPoly &tv, const GridPosPoly &ts, const GridPosPoly &tb, const GridPosPoly &tp, const GridPosPoly &tr, const GridPosPoly &tc)
	Red 6D Interpolate. More...

void	interpweights (MatrixView itw, const ArrayOfGridPosPoly &cgp)
	Compute 1D interpolation weights. More...

void	interpweights (MatrixView itw, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 2D interpolation weights for a sequence of positions. More...

void	interpweights (MatrixView itw, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 3D interpolation weights for a sequence of positions. More...

void	interpweights (MatrixView itw, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 4D interpolation weights for a sequence of positions. More...

void	interpweights (MatrixView itw, const ArrayOfGridPosPoly &sgp, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 5D interpolation weights for a sequence of positions. More...

void	interpweights (MatrixView itw, const ArrayOfGridPosPoly &vgp, const ArrayOfGridPosPoly &sgp, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 6D interpolation weights for a sequence of positions. More...

void	interp (VectorView ia, ConstMatrixView itw, ConstVectorView a, const ArrayOfGridPosPoly &cgp)
	Interpolate 1D field. More...

void	interp (VectorView ia, ConstMatrixView itw, ConstMatrixView a, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 2D field to a sequence of positions. More...

void	interp (VectorView ia, ConstMatrixView itw, ConstTensor3View a, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 3D field to a sequence of positions. More...

void	interp (VectorView ia, ConstMatrixView itw, ConstTensor4View a, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 4D field to a sequence of positions. More...

void	interp (VectorView ia, ConstMatrixView itw, ConstTensor5View a, const ArrayOfGridPosPoly &sgp, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 5D field to a sequence of positions. More...

void	interp (VectorView ia, ConstMatrixView itw, ConstTensor6View a, const ArrayOfGridPosPoly &vgp, const ArrayOfGridPosPoly &sgp, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 6D field to a sequence of positions. More...

void	interpweights (Tensor3View itw, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 2D interpolation weights for an entire field. More...

void	interpweights (Tensor4View itw, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 3D interpolation weights for an entire field. More...

void	interpweights (Tensor5View itw, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 4D interpolation weights for an entire field. More...

void	interpweights (Tensor6View itw, const ArrayOfGridPosPoly &sgp, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 5D interpolation weights for an entire field. More...

void	interpweights (Tensor7View itw, const ArrayOfGridPosPoly &vgp, const ArrayOfGridPosPoly &sgp, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Compute 6D interpolation weights for an entire field. More...

void	interp (MatrixView ia, ConstTensor3View itw, ConstMatrixView a, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 2D field to another 2D field. More...

void	interp (Tensor3View ia, ConstTensor4View itw, ConstTensor3View a, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 3D field to another 3D field. More...

void	interp (Tensor4View ia, ConstTensor5View itw, ConstTensor4View a, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 4D field to another 4D field. More...

void	interp (Tensor5View ia, ConstTensor6View itw, ConstTensor5View a, const ArrayOfGridPosPoly &sgp, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 5D field to another 5D field. More...

void	interp (Tensor6View ia, ConstTensor7View itw, ConstTensor6View a, const ArrayOfGridPosPoly &vgp, const ArrayOfGridPosPoly &sgp, const ArrayOfGridPosPoly &bgp, const ArrayOfGridPosPoly &pgp, const ArrayOfGridPosPoly &rgp, const ArrayOfGridPosPoly &cgp)
	Interpolate 6D field to another 6D field. More...

Variables
const Numeric	sum_check_epsilon = 1e-6
	The maximum difference from 1 that we allow for a sum check. More...

Detailed Description

Interpolation routines for cubic and higher order interpolation.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-02-04

The data structures and functions provided here follow the same philosophy as those for linear interpolation in interpolation{.h,.cc}. You will need a sequence of three steps to perform an interpolation:

gridpos_poly (one for each interpolation dimension)
interpweights
interp

Not only is the philosophy the same, these higher order functions also make direct use of the linear functions in some important cases.

Definition in file interpolation_poly.cc.

Macro Definition Documentation

◆ LOOPIDX

#define LOOPIDX ( x ) for (ArrayOfIndex::const_iterator x=t##x.idx.begin(); x!=t##x.idx.end(); ++x)

Macro for interpolation index loops.

This is the same as LOOPW, but for loops over tx.idx. Since tx.idx is an ArrayOfIndex, not a Vector, we have to use a different type of iterator.

Definition at line 267 of file interpolation_poly.cc.

◆ LOOPW

#define LOOPW ( x ) for ( ConstIterator1D x=t##x.w.begin(); x!=t##x.w.end(); ++x )

Macro for interpolation weight loops.

We use the macro LOOPW to make the notation for the nested for loops in the interpweights functions more concise, and to avoid typing errors.

Should resolve to something like:

for ( Index x=0; x<tx.w.nelem(); ++x )

But with iterators:

for ( ConstIterator1D x=tx.w.begin(); x!=tx.w.end(); ++x )

Definition at line 259 of file interpolation_poly.cc.

Function Documentation

◆ gridpos_poly() [1/2]

void gridpos_poly	(	ArrayOfGridPosPoly &	gp,
		ConstVectorView	old_grid,
		ConstVectorView	new_grid,
		const Index	order,
		const Numeric &	extpolfac
	)

Set up grid positions for higher order interpolation.

This function performs the same task as gridpos, but for arbitrary orders of interpolation. (Linear is also possible, as a special case.)

The formula for calculating the weights w is taken from Numerical Recipes, 2nd edition, section 3.1, eq. 3.1.1.

Parameters

gp	Output: An array of grid positions.
old_grid	Original grid.
new_grid	New grid.
order	Interpolation order. 1 = linear, 2 = quadratic, etc.. The number of points used in the interpolation will be order+1.
extpolfac	Extrapolation fraction. Should normally not be specified, then the default of 0.5 is used.

Definition at line 124 of file interpolation_poly.cc.

References gridpos(), IMAX(), IMIN(), is_size(), and ConstVectorView::nelem().

Referenced by abs_lookupSetupBatch(), abs_lookupTestAccMC(), AtmFieldsCalc(), choose_abs_nls_pert(), choose_abs_t_pert(), GasAbsLookup::Extract(), gridpos_poly(), jacobianCalcFreqShiftAndStretchInterp(), p2gridpos_poly(), sensor_responseFillFgrid(), test07(), and test08().

◆ gridpos_poly() [2/2]

void gridpos_poly	(	GridPosPoly &	gp,
		ConstVectorView	old_grid,
		const Numeric &	new_grid,
		const Index	order,
		const Numeric &	extpolfac
	)

gridpos_poly

Creates a grid position structure for higher order interpolation.

This is a gateway to the function for arrays of GridPosPoly, to be used for e.g. "red interpolation".

Return values

gp	The GridPos structure.

Parameters

old_grid	The original grid.
new_grid	The position where we want to have the interpolated value.
order	Interpolation order. 1 = linear, 2 = quadratic, etc.. The number of points used in the interpolation will be order+1.
extpolfac	Extrapolation factor. Default value is 0.5, which means that extrapolation of half of the last grid distance is allowed. You don't have to specify this.

Author: Stefan Buehler

Date: 2008-03-06

Definition at line 224 of file interpolation_poly.cc.

References gridpos_poly().

◆ IMAX()

Index IMAX	(	Index	a,
		Index	b
	)

Return the maximum of two integer numbers.

This function is based on a macro from Numerical Receipes. The original macro:

static Index imaxarg1, imaxarg2; #define IMAX(a,b) (imaxarg1=(a), imaxarg2=(b),(imaxarg1) > (imaxarg2) ? \ (imaxarg1) : (imaxarg2))

The macro can cause trouble if used in parallel regions, so we use this function instead.

Parameters

a	Input a.
b	Input b.

Returns: The maximum of a and b.

Definition at line 62 of file interpolation_poly.cc.

Referenced by gridpos_poly().

◆ IMIN()

Index IMIN	(	Index	a,
		Index	b
	)

Return the minimum of two integer numbers.

This function is based on a macro from Numerical Receipes. The original macro:

static Index iminarg1, iminarg2; #define IMIN(a,b) (iminarg1=(a), iminarg2=(b),(iminarg1) < (iminarg2) ? \ (iminarg1) : (iminarg2))

The macro can cause trouble if used in parallel regions, so we use this function instead.

Parameters

a	Input a.
b	Input b.

Returns: The minimum of a and b.

Definition at line 84 of file interpolation_poly.cc.

Referenced by gridpos_poly().

◆ interp() [1/17]

Numeric interp	(	ConstVectorView	itw,
		ConstMatrixView	a,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 2D Interpolate.

"Red" interpolation returns just a scalar.

The dimension of itw must be consistent with the dimension of the interpolation (2^n).

Parameters

itw	Interpolation weights.
a	The field to interpolate.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Returns: Interpolated value.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 596 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), LOOPIDX, ConstVectorView::nelem(), ConstVectorView::sum(), sum_check_epsilon, and GridPosPoly::w.

◆ interp() [2/17]

Numeric interp	(	ConstVectorView	itw,
		ConstTensor3View	a,
		const GridPosPoly &	tp,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 3D Interpolate.

"Red" interpolation returns just a scalar.

The dimension of itw must be consistent with the dimension of the interpolation (2^n).

Parameters

itw	Interpolation weights.
a	The field to interpolate.
tp	The grid position for the page dimension.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Returns: Interpolated value.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 644 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), LOOPIDX, ConstVectorView::nelem(), ConstVectorView::sum(), sum_check_epsilon, and GridPosPoly::w.

◆ interp() [3/17]

Numeric interp	(	ConstVectorView	itw,
		ConstTensor4View	a,
		const GridPosPoly &	tb,
		const GridPosPoly &	tp,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 4D Interpolate.

"Red" interpolation returns just a scalar.

The dimension of itw must be consistent with the dimension of the interpolation (2^n).

Parameters

itw	Interpolation weights.
a	The field to interpolate.
tb	The grid position for the book dimension.
tp	The grid position for the page dimension.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Returns: Interpolated value.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 697 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), LOOPIDX, ConstVectorView::nelem(), ConstVectorView::sum(), sum_check_epsilon, and GridPosPoly::w.

◆ interp() [4/17]

Numeric interp	(	ConstVectorView	itw,
		ConstTensor5View	a,
		const GridPosPoly &	ts,
		const GridPosPoly &	tb,
		const GridPosPoly &	tp,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 5D Interpolate.

"Red" interpolation returns just a scalar.

The dimension of itw must be consistent with the dimension of the interpolation (2^n).

Parameters

itw	Interpolation weights.
a	The field to interpolate.
ts	The grid position for the shelf dimension.
tb	The grid position for the book dimension.
tp	The grid position for the page dimension.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Returns: Interpolated value.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 755 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), LOOPIDX, ConstVectorView::nelem(), ConstVectorView::sum(), sum_check_epsilon, and GridPosPoly::w.

◆ interp() [5/17]

Numeric interp	(	ConstVectorView	itw,
		ConstTensor6View	a,
		const GridPosPoly &	tv,
		const GridPosPoly &	ts,
		const GridPosPoly &	tb,
		const GridPosPoly &	tp,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 6D Interpolate.

"Red" interpolation returns just a scalar.

The dimension of itw must be consistent with the dimension of the interpolation (2^n).

Parameters

itw	Interpolation weights.
a	The field to interpolate.
tv	The grid position for the vitrine dimension.
ts	The grid position for the shelf dimension.
tb	The grid position for the book dimension.
tp	The grid position for the page dimension.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Returns: Interpolated value.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 818 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), LOOPIDX, ConstVectorView::nelem(), ConstVectorView::sum(), sum_check_epsilon, and GridPosPoly::w.

◆ interp() [6/17]

Numeric interp	(	ConstVectorView	itw,
		ConstVectorView	a,
		const GridPosPoly &	tc
	)

Red 1D Interpolate.

"Red" interpolation returns just a scalar.

The dimension of itw must be consistent with the dimension of the interpolation (2^n).

Parameters

itw	Interpolation weights.
a	The field to interpolate.
tc	The grid position for the column dimension.

Returns: Interpolated value.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 554 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), LOOPIDX, ConstVectorView::nelem(), ConstVectorView::sum(), sum_check_epsilon, and GridPosPoly::w.

◆ interp() [7/17]

void interp	(	MatrixView	ia,
		ConstTensor3View	itw,
		ConstMatrixView	a,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 2D field to another 2D field.

This performs a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

This function can be easily distinguished from the other interpolation function (that creates a sequence of interpolated values), because of the dimension of ia and itw.

The size of ia and itw in all dimensions must be consistent with the grid position Arrays.

Return values

ia	Interpolated field.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 2100 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interp() [8/17]

void interp	(	Tensor3View	ia,
		ConstTensor4View	itw,
		ConstTensor3View	a,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 3D field to another 3D field.

This performs a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

This function can be easily distinguished from the other interpolation function (that creates a sequence of interpolated values), because of the dimension of ia and itw.

The size of ia and itw in all dimensions must be consistent with the grid position Arrays.

Return values

ia	Interpolated field.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 2171 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interp() [9/17]

void interp	(	Tensor4View	ia,
		ConstTensor5View	itw,
		ConstTensor4View	a,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 4D field to another 4D field.

This performs a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

This function can be easily distinguished from the other interpolation function (that creates a sequence of interpolated values), because of the dimension of ia and itw.

The size of ia and itw in all dimensions must be consistent with the grid position Arrays.

Return values

ia	Interpolated field.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 2253 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interp() [10/17]

void interp	(	Tensor5View	ia,
		ConstTensor6View	itw,
		ConstTensor5View	a,
		const ArrayOfGridPosPoly &	sgp,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 5D field to another 5D field.

This performs a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

This function can be easily distinguished from the other interpolation function (that creates a sequence of interpolated values), because of the dimension of ia and itw.

The size of ia and itw in all dimensions must be consistent with the grid position Arrays.

Return values

ia	Interpolated field.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
sgp	The grid position Array for the shelf dimension.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 2345 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), ns, and sum_check_epsilon.

◆ interp() [11/17]

void interp	(	Tensor6View	ia,
		ConstTensor7View	itw,
		ConstTensor6View	a,
		const ArrayOfGridPosPoly &	vgp,
		const ArrayOfGridPosPoly &	sgp,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 6D field to another 6D field.

This performs a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

This function can be easily distinguished from the other interpolation function (that creates a sequence of interpolated values), because of the dimension of ia and itw.

The size of ia and itw in all dimensions must be consistent with the grid position Arrays.

Return values

ia	Interpolated field.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
vgp	The grid position Array for the vitrine dimension.
sgp	The grid position Array for the shelf dimension.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 2447 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), ns, and sum_check_epsilon.

◆ interp() [12/17]

void interp	(	VectorView	ia,
		ConstMatrixView	itw,
		ConstMatrixView	a,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 2D field to a sequence of positions.

This performs a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The output vector ia also must have the same length. And the dimension of itw must be consistent with this.

This function can be easily distinguished from the other interpolation function (that creates an entire field of interpolated values), because of the dimension of ia and itw.

Return values

ia	Vector containing the interpolated field values.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1332 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interp() [13/17]

void interp	(	VectorView	ia,
		ConstMatrixView	itw,
		ConstTensor3View	a,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 3D field to a sequence of positions.

This performs a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The output vector ia also must have the same length. And the dimension of itw must be consistent with this.

This function can be easily distinguished from the other interpolation function (that creates an entire field of interpolated values), because of the dimension of ia and itw.

Return values

ia	Vector containing the interpolated field values.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1398 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interp() [14/17]

void interp	(	VectorView	ia,
		ConstMatrixView	itw,
		ConstTensor4View	a,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 4D field to a sequence of positions.

This performs a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The output vector ia also must have the same length. And the dimension of itw must be consistent with this.

This function can be easily distinguished from the other interpolation function (that creates an entire field of interpolated values), because of the dimension of ia and itw.

Return values

ia	Vector containing the interpolated field values.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1471 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interp() [15/17]

void interp	(	VectorView	ia,
		ConstMatrixView	itw,
		ConstTensor5View	a,
		const ArrayOfGridPosPoly &	sgp,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 5D field to a sequence of positions.

This performs a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The output vector ia also must have the same length. And the dimension of itw must be consistent with this.

This function can be easily distinguished from the other interpolation function (that creates an entire field of interpolated values), because of the dimension of ia and itw.

Return values

ia	Vector containing the interpolated field values.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
sgp	The grid position Array for the shelf dimension.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1551 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interp() [16/17]

void interp	(	VectorView	ia,
		ConstMatrixView	itw,
		ConstTensor6View	a,
		const ArrayOfGridPosPoly &	vgp,
		const ArrayOfGridPosPoly &	sgp,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 6D field to a sequence of positions.

This performs a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The output vector ia also must have the same length. And the dimension of itw must be consistent with this.

This function can be easily distinguished from the other interpolation function (that creates an entire field of interpolated values), because of the dimension of ia and itw.

Return values

ia	Vector containing the interpolated field values.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
vgp	The grid position Array for the vitrine dimension.
sgp	The grid position Array for the shelf dimension.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1638 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interp() [17/17]

void interp	(	VectorView	ia,
		ConstMatrixView	itw,
		ConstVectorView	a,
		const ArrayOfGridPosPoly &	cgp
	)

Interpolate 1D field.

For this 1D case there is no distinction between "blue" and "green" type interpolation.

The output vector ia must have the same length as the grid position vector cgp. And the dimension of itw must be consistent with this.

Return values

ia	Vector containing the interpolated field values.

Parameters

itw	Interpolation weights.
a	The field to interpolate.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1273 of file interpolation_poly.cc.

References is_same_within_epsilon(), is_size(), joker, LOOPIDX, Array< base >::nelem(), and sum_check_epsilon.

◆ interpweights() [1/17]

void interpweights	(	MatrixView	itw,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 4D interpolation weights for a sequence of positions.

Compute the weights for a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The dimensions of itw must be also consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Matrix, whereas in the other case it is a Tensor with one more dimension than there are input grid position Arrays.

Return values

itw	Interpolation weights.

Parameters

bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1076 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [2/17]

void interpweights	(	MatrixView	itw,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 1D interpolation weights.

For this 1D case there is no distinction between "blue" and "green" type interpolation.

The dimensions of itw must be consistent with cgp.

Note that we still do not need the actual field for this step.

Return values

itw	Interpolation weights.

Parameters

cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 886 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [3/17]

void interpweights	(	MatrixView	itw,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 3D interpolation weights for a sequence of positions.

Compute the weights for a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The dimensions of itw must be also consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Matrix, whereas in the other case it is a Tensor with one more dimension than there are input grid position Arrays.

Return values

itw	Interpolation weights.

Parameters

pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1019 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [4/17]

void interpweights	(	MatrixView	itw,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 2D interpolation weights for a sequence of positions.

Compute the weights for a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The dimensions of itw must be also consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Matrix, whereas in the other case it is a Tensor with one more dimension than there are input grid position Arrays.

Return values

itw	Interpolation weights.

Parameters

rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 960 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [5/17]

void interpweights	(	MatrixView	itw,
		const ArrayOfGridPosPoly &	sgp,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 5D interpolation weights for a sequence of positions.

Compute the weights for a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The dimensions of itw must be also consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Matrix, whereas in the other case it is a Tensor with one more dimension than there are input grid position Arrays.

Return values

itw	Interpolation weights.

Parameters

sgp	The grid position Array for the shelf dimension.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1139 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [6/17]

void interpweights	(	MatrixView	itw,
		const ArrayOfGridPosPoly &	vgp,
		const ArrayOfGridPosPoly &	sgp,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 6D interpolation weights for a sequence of positions.

Compute the weights for a "blue" type interpolation of the field, that means that the grid position Arrays are interpreted as defining a sequence of positions. ALL GRID POSITION ARRAYS MUST HAVE THE SAME LENGTH!

The dimensions of itw must be also consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Matrix, whereas in the other case it is a Tensor with one more dimension than there are input grid position Arrays.

Return values

itw	Interpolation weights.

Parameters

vgp	The grid position Array for the vitrine dimension.
sgp	The grid position Array for the shelf dimension.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1208 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [7/17]

void interpweights	(	Tensor3View	itw,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 2D interpolation weights for an entire field.

Compute the weights for a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

The dimensions of itw must be consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Tensor with one more dimension than the number of grid position Arrays.

Return values

itw	Interpolation weights

Parameters

rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1731 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [8/17]

void interpweights	(	Tensor4View	itw,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 3D interpolation weights for an entire field.

Compute the weights for a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

The dimensions of itw must be consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Tensor with one more dimension than the number of grid position Arrays.

Return values

itw	Interpolation weights

Parameters

pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1795 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [9/17]

void interpweights	(	Tensor5View	itw,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 4D interpolation weights for an entire field.

Compute the weights for a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

The dimensions of itw must be consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Tensor with one more dimension than the number of grid position Arrays.

Return values

itw	Interpolation weights

Parameters

bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1859 of file interpolation_poly.cc.

References is_size(), LOOPW, and Array< base >::nelem().

◆ interpweights() [10/17]

void interpweights	(	Tensor6View	itw,
		const ArrayOfGridPosPoly &	sgp,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 5D interpolation weights for an entire field.

Compute the weights for a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

The dimensions of itw must be consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Tensor with one more dimension than the number of grid position Arrays.

Return values

itw	Interpolation weights

Parameters

sgp	The grid position Array for the shelf dimension.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 1932 of file interpolation_poly.cc.

References is_size(), LOOPW, Array< base >::nelem(), and ns.

◆ interpweights() [11/17]

void interpweights	(	Tensor7View	itw,
		const ArrayOfGridPosPoly &	vgp,
		const ArrayOfGridPosPoly &	sgp,
		const ArrayOfGridPosPoly &	bgp,
		const ArrayOfGridPosPoly &	pgp,
		const ArrayOfGridPosPoly &	rgp,
		const ArrayOfGridPosPoly &	cgp
	)

Compute 6D interpolation weights for an entire field.

Compute the weights for a "green" type interpolation of the field, that means that the grid position Arrays are interpreted as defining the grids for the interpolated field.

The dimensions of itw must be consistent with this.

Note that we still do not need the actual field for this step.

This function can be easily distinguished from the other interpweights function (for "green" interpolation), because the output is a Tensor with one more dimension than the number of grid position Arrays.

Return values

itw	Interpolation weights

Parameters

vgp	The grid position Array for the vitrine dimension.
sgp	The grid position Array for the shelf dimension.
bgp	The grid position Array for the book dimension.
pgp	The grid position Array for the page dimension.
rgp	The grid position Array for the row dimension.
cgp	The grid position Array for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 2014 of file interpolation_poly.cc.

References is_size(), LOOPW, Array< base >::nelem(), and ns.

◆ interpweights() [12/17]

void interpweights	(	VectorView	itw,
		const GridPosPoly &	tb,
		const GridPosPoly &	tp,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 4D interpolation weights.

"Red" interpolation returns just a scalar, so the weights are stored in a Vector.

The length of itw must be consistent with the dimension of the field to be interpolated (2^n).

Return values

itw	Interpolation weights.

Parameters

tb	The grid position for the book dimension.
tp	The grid position for the page dimension.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 420 of file interpolation_poly.cc.

References is_size(), LOOPW, ConstVectorView::nelem(), and GridPosPoly::w.

◆ interpweights() [13/17]

void interpweights	(	VectorView	itw,
		const GridPosPoly &	tc
	)

Red 1D interpolation weights.

"Red" interpolation returns just a scalar, so the weights are stored in a Vector.

The length of itw must be consistent with the dimension of the field to be interpolated (2^n).

Return values

itw	Interpolation weights.

Parameters

tc	The grid position for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 315 of file interpolation_poly.cc.

References is_size(), LOOPW, ConstVectorView::nelem(), and GridPosPoly::w.

◆ interpweights() [14/17]

void interpweights	(	VectorView	itw,
		const GridPosPoly &	tp,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 3D interpolation weights.

"Red" interpolation returns just a scalar, so the weights are stored in a Vector.

The length of itw must be consistent with the dimension of the field to be interpolated (2^n).

Return values

itw	Interpolation weights.

Parameters

tp	The grid position for the page dimension.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 382 of file interpolation_poly.cc.

References is_size(), LOOPW, ConstVectorView::nelem(), and GridPosPoly::w.

◆ interpweights() [15/17]

void interpweights	(	VectorView	itw,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 2D interpolation weights.

"Red" interpolation returns just a scalar, so the weights are stored in a Vector.

The length of itw must be consistent with the dimension of the field to be interpolated (2^n).

Return values

itw	Interpolation weights.

Parameters

tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 349 of file interpolation_poly.cc.

References is_size(), LOOPW, ConstVectorView::nelem(), and GridPosPoly::w.

◆ interpweights() [16/17]

void interpweights	(	VectorView	itw,
		const GridPosPoly &	ts,
		const GridPosPoly &	tb,
		const GridPosPoly &	tp,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 5D interpolation weights.

"Red" interpolation returns just a scalar, so the weights are stored in a Vector.

The length of itw must be consistent with the dimension of the field to be interpolated (2^n).

Return values

itw	Interpolation weights.

Parameters

ts	The grid position for the shelf dimension.
tb	The grid position for the book dimension.
tp	The grid position for the page dimension.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 462 of file interpolation_poly.cc.

References is_size(), LOOPW, ConstVectorView::nelem(), and GridPosPoly::w.

◆ interpweights() [17/17]

void interpweights	(	VectorView	itw,
		const GridPosPoly &	tv,
		const GridPosPoly &	ts,
		const GridPosPoly &	tb,
		const GridPosPoly &	tp,
		const GridPosPoly &	tr,
		const GridPosPoly &	tc
	)

Red 6D interpolation weights.

"Red" interpolation returns just a scalar, so the weights are stored in a Vector.

The length of itw must be consistent with the dimension of the field to be interpolated (2^n).

Return values

itw	Interpolation weights.

Parameters

tv	The grid position for the vitrine dimension.
ts	The grid position for the shelf dimension.
tb	The grid position for the book dimension.
tp	The grid position for the page dimension.
tr	The grid position for the row dimension.
tc	The grid position for the column dimension.

Author: Stefan Buehler <sbuehler(at)ltu.se>

Date: 2008-03-06

Definition at line 508 of file interpolation_poly.cc.

References is_size(), LOOPW, ConstVectorView::nelem(), and GridPosPoly::w.

◆ operator<<()

ostream& operator<<	(	ostream &	os,
		const GridPosPoly &	gp
	)

Output operator for GridPosPoly.

This is just intended for testing and debugging.

Parameters

os	Output stream.
gp	Grid position.

Returns: The output stream.

Definition at line 279 of file interpolation_poly.cc.

References GridPosPoly::idx, and GridPosPoly::w.

Variable Documentation

◆ sum_check_epsilon

const Numeric sum_check_epsilon = 1e-6

The maximum difference from 1 that we allow for a sum check.

The sum check makes sure that the sum of all weights is approximately 1.

We cannot use a sharp comparison there, due to numerical noise. The value of 1e-6 is an ad-hoc value.

This shold be ok, the main point of the test is to make sure that what we have really are interpolation weights, and not something else.

Definition at line 103 of file interpolation_poly.cc.

Referenced by interp().

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ LOOPIDX

◆ LOOPW

Function Documentation

◆ gridpos_poly() [1/2]

◆ gridpos_poly() [2/2]

◆ IMAX()

◆ IMIN()

◆ interp() [1/17]

◆ interp() [2/17]

◆ interp() [3/17]

◆ interp() [4/17]

◆ interp() [5/17]

◆ interp() [6/17]

◆ interp() [7/17]

◆ interp() [8/17]

◆ interp() [9/17]

◆ interp() [10/17]

◆ interp() [11/17]

◆ interp() [12/17]

◆ interp() [13/17]

◆ interp() [14/17]

◆ interp() [15/17]

◆ interp() [16/17]

◆ interp() [17/17]

◆ interpweights() [1/17]

◆ interpweights() [2/17]

◆ interpweights() [3/17]

◆ interpweights() [4/17]

◆ interpweights() [5/17]

◆ interpweights() [6/17]

◆ interpweights() [7/17]

◆ interpweights() [8/17]

◆ interpweights() [9/17]

◆ interpweights() [10/17]

◆ interpweights() [11/17]

◆ interpweights() [12/17]

◆ interpweights() [13/17]

◆ interpweights() [14/17]

◆ interpweights() [15/17]

◆ interpweights() [16/17]

◆ interpweights() [17/17]

◆ operator<<()

Variable Documentation

◆ sum_check_epsilon