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rdSpline Class Reference

A class for representing smooth functions with b-splines. More...

#include <rdSpline.h>

List of all members.

Public Member Functions
virtual	~rdSpline ()
	Destructor.
	rdSpline (const char *aFileName)
	Construct a b-spline representation of a smooth function.
	rdSpline (FILE *aFP)
	Construct a b-spline representation of a smooth function.
int	getKnotIndex (double x)
	Get the knot index for the interval in which x falls.
double	evaluate (double x)
	Evaluate a spline at x.
void	print ()
	Print a spline.
Private Member Functions
int	initialize (FILE *aFP)
	Initialize spline based on the contents of a file.
void	null ()
	NULL or zero data.
int	checkFileStatus (int aStatus)
	Check the status of a file read.
Private Attributes
int	_status
char	_name [RDSPLINE_MAXSIZE]
double	_ti
double	_tf
int	_order
int	_nknots
int	_ncoefs
double *	_knots
double *	_coefs
double *	_tx
double *	_b

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Detailed Description

A class for representing smooth functions with b-splines.

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Constructor & Destructor Documentation

rdSpline::rdSpline (  const char *  aFileName  )

Construct a b-spline representation of a smooth function. Parameters: aFileName  Name of a valid spline file.

rdSpline::rdSpline (  FILE *  aFP  )

Construct a b-spline representation of a smooth function. Parameters: a  pointer to an openned spline file.

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Member Function Documentation

int rdSpline::checkFileStatus (  int  aStatus  )  [private]

Check the status of a file read. Parameters: aFileName  Name of a valid spline file.

double rdSpline::evaluate (  double  x  )

Evaluate a spline at x. This function is based on Matlab's spval.m. 2000_08_10 This routine assumes that the end knots have the proper multiplicity.

int rdSpline::getKnotIndex (  double  x  )

Get the knot index for the interval in which x falls. If x does not fall within a valid interval, -1 is returned.

int rdSpline::initialize (  FILE *  aFP  )  [private]

Initialize spline based on the contents of a file. Parameters: aFileName  Name of a valid spline file.

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

• rdSpline.h
• rdSpline.cpp

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