gridripper::math::InterpolationUtil Class Reference

Interpolation related utility methods. More...

List of all members.

Static Public Member Functions
static void	resizeLinear (double[] xarr, double[] data, double[] oxarr, double[] odata) throws IllegalArgumentException
	Resize a data array by an integer factor, using linear interpolation.
static void	resizeLinear (int[] xarr, double[] data, int[] oxarr, double[] odata) throws IllegalArgumentException
	Resize a data array by an integer factor, using linear interpolation.
static void	resizeCubic (double[] xarr, double[] data, double[] oxarr, double[] odata) throws IllegalArgumentException
	Resize a data array by an integer factor.
static void	resizeCubic (int[] xarr, double[] data, int[] oxarr, double[] odata) throws IllegalArgumentException
	Resize a data array by an integer factor.
static void	resizeQuintic (double[] xarr, double[] data, double[] oxarr, double[] odata) throws IllegalArgumentException
	Resize a data array by an integer factor.
static void	resizeQuintic (int[] xarr, double[] data, int[] oxarr, double[] odata) throws IllegalArgumentException
	Resize a data array by an integer factor.
static void	cubicCoeff12 (double x, double x0, double x1, double x2, double x3, double[] w)
	Calculation of cubic interpolation coefficients for the central interval.
static void	quadraticCoeff01 (double x, double x0, double x1, double x2, double[] w)
	Calculation of quadratic interpolation coefficients for the left interval.
static void	quadraticCoeff23 (double x, double x1, double x2, double x3, double[] w)
	Calculation of quadratic interpolation coefficients for the right interval.
static void	quinticCoeff23 (double x, double x0, double x1, double x2, double x3, double x4, double x5, double[] w)
	Calculation of quintic interpolation coefficients for the central interval.
static void	quarticCoeff12 (double x, double x0, double x1, double x2, double x3, double x4, double[] w)
	Calculation of quartic interpolation coefficients for the [x1, x2] interval.
static void	quarticCoeff01 (double x, double x0, double x1, double x2, double x3, double x4, double[] w)
	Calculation of quartic interpolation coefficients for the [x0, x1] interval.
static void	quarticCoeff34 (double x, double x1, double x2, double x3, double x4, double x5, double[] w)
	Calculation of quartic interpolation coefficients for the [x3, x4] interval.
static void	quarticCoeff45 (double x, double x1, double x2, double x3, double x4, double x5, double[] w)
	Calculation of quartic interpolation coefficients for the [x4, x5] interval.

---

Detailed Description

Interpolation related utility methods.

Version:

0.4, 10/21/2006

Since:

GridRipper 0.4, 10/20/2006

Author:

Peter Csizmadia

---

Member Function Documentation

static void gridripper::math::InterpolationUtil::resizeLinear	(	double[]	xarr,
		double[]	data,
		double[]	oxarr,
		double[]	odata
	)			throws IllegalArgumentException [inline, static]

Resize a data array by an integer factor, using linear interpolation.

New x coordinates are multiplied by the integer factor.

Parameters:

	xarr	array of independent variable values
	data	array of dependent variable values
	oxarr	output array of independent variable values
	odata	output array of dependent variable values

static void gridripper::math::InterpolationUtil::resizeLinear	(	int[]	xarr,
		double[]	data,
		int[]	oxarr,
		double[]	odata
	)			throws IllegalArgumentException [inline, static]

Resize a data array by an integer factor, using linear interpolation.

New x coordinates are multiplied by the integer factor (thus the `interpolated' coordinates are also integers).

Parameters:

	xarr	array of independent variable values
	data	array of dependent variable values
	oxarr	output array of independent variable values
	odata	output array of dependent variable values

static void gridripper::math::InterpolationUtil::resizeCubic	(	double[]	xarr,
		double[]	data,
		double[]	oxarr,
		double[]	odata
	)			throws IllegalArgumentException [inline, static]

Resize a data array by an integer factor.

New data points are interpolated with cubic (quadratic near the edges) polynomials. New x coordinates are interpolated linearly and multiplied by the integer factor.

Parameters:

	xarr	array of independent variable values
	data	array of dependent variable values
	oxarr	output array of independent variable values
	odata	output array of dependent variable values

static void gridripper::math::InterpolationUtil::resizeCubic	(	int[]	xarr,
		double[]	data,
		int[]	oxarr,
		double[]	odata
	)			throws IllegalArgumentException [inline, static]

Resize a data array by an integer factor.

New data points are interpolated with cubic (quadratic near the edges) polynomials. New x coordinates are interpolated linearly and multiplied by the integer factor (thus the resulting coordinates are also integers).

Parameters:

	xarr	array of independent variable values
	data	array of dependent variable values
	oxarr	output array of independent variable values
	odata	output array of dependent variable values

static void gridripper::math::InterpolationUtil::resizeQuintic	(	double[]	xarr,
		double[]	data,
		double[]	oxarr,
		double[]	odata
	)			throws IllegalArgumentException [inline, static]

Resize a data array by an integer factor.

New data points are interpolated with quintic (quartic near the edges) polynomials. New x coordinates are interpolated linearly and multiplied by the integer factor.

Parameters:

	xarr	array of independent variable values
	data	array of dependent variable values
	oxarr	output array of independent variable values
	odata	output array of dependent variable values

static void gridripper::math::InterpolationUtil::resizeQuintic	(	int[]	xarr,
		double[]	data,
		int[]	oxarr,
		double[]	odata
	)			throws IllegalArgumentException [inline, static]

Resize a data array by an integer factor.

New data points are interpolated with quintic (quartic near the edges) polynomials. New x coordinates are interpolated linearly and multiplied by the integer factor (thus the resulting coordinates are also integers).

Parameters:

	xarr	array of independent variable values
	data	array of dependent variable values
	oxarr	output array of independent variable values
	odata	output array of dependent variable values

static void gridripper::math::InterpolationUtil::cubicCoeff12	(	double	x,
		double	x0,
		double	x1,
		double	x2,
		double	x3,
		double[]	w
	)			[inline, static]

Calculation of cubic interpolation coefficients for the central interval.

The x1 and x2 points and the first derivatives are fixed here. The first derivates are calculated in second order, using the points (x0, x1, x2) and (x1, x2, x3), respectively.

Parameters:

	x	the x coordinate
	x0	first point
	x1	second point
	x2	third point
	x3	fourth point
	w	output array for the result, its size must be 4

static void gridripper::math::InterpolationUtil::quadraticCoeff01	(	double	x,
		double	x0,
		double	x1,
		double	x2,
		double[]	w
	)			[inline, static]

Calculation of quadratic interpolation coefficients for the left interval.

The x0 and x1 points and the first derivatives are fixed here. The first derivates are calculated in second order.

Parameters:

	x	the x coordinate
	x0	first point
	x1	second point
	x2	third point
	w	output array for the result, its size must be at least 3

static void gridripper::math::InterpolationUtil::quadraticCoeff23	(	double	x,
		double	x1,
		double	x2,
		double	x3,
		double[]	w
	)			[inline, static]

Calculation of quadratic interpolation coefficients for the right interval.

The x1 and x2 points and the first derivatives are fixed here. The first derivates are calculated in second order.

Parameters:

	x	the x coordinate
	x1	first point
	x2	second point
	x3	third point
	w	output array for the result, its size must be at least 3

static void gridripper::math::InterpolationUtil::quinticCoeff23	(	double	x,
		double	x0,
		double	x1,
		double	x2,
		double	x3,
		double	x4,
		double	x5,
		double[]	w
	)			[inline, static]

Calculation of quintic interpolation coefficients for the central interval.

The x2 and x3 points, the first and the second derivatives are fixed here. Derivates are calculated in fourth order, using the points (x0, x1, x2, x3, x4) and (x1, x2, x3, x4, x5), respectively.

Parameters:

	x	the x coordinate
	x0	first point
	x1	second point
	x2	third point
	x3	fourth point
	x4	fifth point
	x5	sixth point
	w	output array for the result, its size must be 6

static void gridripper::math::InterpolationUtil::quarticCoeff12	(	double	x,
		double	x0,
		double	x1,
		double	x2,
		double	x3,
		double	x4,
		double[]	w
	)			[inline, static]

Calculation of quartic interpolation coefficients for the [x1, x2] interval.

The x1 and x2 points, the first and the second derivatives are fixed here. Derivates are calculated in fourth order.

Parameters:

	x	the x coordinate
	x0	first point
	x1	second point
	x2	third point
	x3	fourth point
	x4	fifth point
	w	output array for the result, its size must be at least 5

static void gridripper::math::InterpolationUtil::quarticCoeff01	(	double	x,
		double	x0,
		double	x1,
		double	x2,
		double	x3,
		double	x4,
		double[]	w
	)			[inline, static]

Calculation of quartic interpolation coefficients for the [x0, x1] interval.

The x0 and x1 points, the first and the second derivatives are fixed here. Derivates are calculated in fourth order.

Parameters:

	x	the x coordinate
	x0	first point
	x1	second point
	x2	third point
	x3	fourth point
	x4	fifth point
	w	output array for the result, its size must be at least 5

static void gridripper::math::InterpolationUtil::quarticCoeff34	(	double	x,
		double	x1,
		double	x2,
		double	x3,
		double	x4,
		double	x5,
		double[]	w
	)			[inline, static]

Calculation of quartic interpolation coefficients for the [x3, x4] interval.

The x3 and x4 points, the first and the second derivatives are fixed here. Derivates are calculated in fourth order.

Parameters:

	x	the x coordinate
	x1	first point
	x2	second point
	x3	third point
	x4	fourth point
	x5	fifth point
	w	output array for the result, its size must be at least 5

static void gridripper::math::InterpolationUtil::quarticCoeff45	(	double	x,
		double	x1,
		double	x2,
		double	x3,
		double	x4,
		double	x5,
		double[]	w
	)			[inline, static]

Calculation of quartic interpolation coefficients for the [x4, x5] interval.

The x4 and x5 points, the first and the second derivatives are fixed here. Derivates are calculated in fourth order.

Parameters:

	x	the x coordinate
	x1	first point
	x2	second point
	x3	third point
	x4	fourth point
	x5	fifth point
	w	output array for the result, its size must be at least 5

---

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

• gridripper/math/InterpolationUtil.java