ru.sscc.spline.analytic
Class GSplinePreparator

java.lang.Object
  |
  +--ru.sscc.spline.creator.SmoothingPreparator
        |
        +--ru.sscc.spline.analytic.GSplinePreparator

public class GSplinePreparator

extends SmoothingPreparator

The implementation of SmoothingPreparator for Duchon's spline.

See Also:

Serialized Form

Field Summary

protected GSplineBody	body The body of Duchon's spline.
protected GreenSolver	solver The solver.

Fields inherited from class ru.sscc.spline.creator.SmoothingPreparator

matrixMultiple, solverPrepared, sourceSize, weightMultiple, weights

Constructor Summary

GSplinePreparator(GSplineBody body)
Constructor.

Method Summary

double	calculationCost() Returns a number of arithmetic operations needed for calculation of spline coefficients.
java.lang.Object	clone() Returns a nonprepared clone.
double	getReductionAccuracy() Returns the reduction accuracy level.
GreenSolver	getSolver() Returns the solver used in the preparator or null if the solver is not prepared yet.
void	prepareSolver(double alpha) Prepares a solver for calculations with specified alpha.
void	setReductionAccuracy(double accuracy) Sets the reduction accuracy level affecting on making the decision ether the mesh is degenerate or not.
void	solve(RealVector values, RealVector data, RealVector residual) Calculates spline coefficients and smoothing residual by interpolation values.

Methods inherited from class ru.sscc.spline.creator.SmoothingPreparator

ensureSolverPrepared, getAccuracy, getAlpha, isSolverPrepared, prepareMultiples, prepareWeights, residual, selectAlpha, setAccuracy

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

body

protected GSplineBody body

The body of Duchon's spline.

solver

protected GreenSolver solver

The solver.

Constructor Detail

GSplinePreparator

public GSplinePreparator(GSplineBody body)

Constructor.

Parameters:

body - a spline body

Method Detail

setReductionAccuracy

public final void setReductionAccuracy(double accuracy)

Sets the reduction accuracy level affecting on making the decision ether the mesh is degenerate or not.

getReductionAccuracy

public final double getReductionAccuracy()

Returns the reduction accuracy level.

clone

public java.lang.Object clone()

Returns a nonprepared clone.

Overrides:

clone in class SmoothingPreparator

prepareSolver

public void prepareSolver(double alpha)
                   throws CalculatingException

Prepares a solver for calculations with specified alpha. The value alpha = Double.POSITIVE_INFINITY is permitted.

Overrides:

prepareSolver in class SmoothingPreparator

getSolver

public final GreenSolver getSolver()

Returns the solver used in the preparator or null if the solver is not prepared yet.

solve

public void solve(RealVector values,
                  RealVector data,
                  RealVector residual)

Calculates spline coefficients and smoothing residual by interpolation values.

Overrides:

solve in class SmoothingPreparator

Parameters:

values - interpolation values at mesh nodes

data - a vector to store spline coefficients

residual - a vector to store residual (if it is equal to null, the residual is not needed)

calculationCost

public double calculationCost()

Returns a number of arithmetic operations needed for calculation of spline coefficients.

Overrides:

calculationCost in class SmoothingPreparator