Storage container for a cubic spline interpolation. More...

#include <cubic_spline.hpp>

Inheritance diagram for ecl::CubicSpline:

Public Member Functions
	CubicSpline ()
template<typename Derived >
	CubicSpline (const BluePrint< Derived > &blueprint)
	Blueprint constructor.
double	dderivative (double x) const ecl_assert_throw_decl(StandardException)
	Spline second derivative.
double	derivative (double x) const ecl_assert_throw_decl(StandardException)
	Spline derivative.
const Array< double > &	domain ()
	The discretised domain for this spline.
double	operator() (const double &x) const ecl_assert_throw_decl(StandardException)
	Spline function.
const Array< CubicPolynomial > &	polynomials ()
	The polynomial sequence.
virtual	~CubicSpline ()
Private Attributes
Array< CubicPolynomial >	cubic_polynomials
Array< double >	discretised_domain
Friends
class	blueprints::C2CubicSpline
class	blueprints::DerivativeHeuristicCubicSpline
template<typename OutputStream >
OutputStream &	operator<< (OutputStream &ostream, const CubicSpline &cubic_spline)
	Streaming output insertion operator for for cubic splines.

Detailed Description

Storage container for a cubic spline interpolation.

Storage container for a cubic spline interpolation. This is a very standard cubic spline container. Use the corresponding blueprints for construction of the splines.

There are various ways of constructing the cubic spline, though almost always a C1 or C2 continuous function is desired. To achieve this, either a heuristic or a C2 constraint can be fixed, resulting in a derivation for the spline's functions.

See also:: Polynomial, Math::Splines.

Definition at line 123 of file cubic_spline.hpp.

Constructor & Destructor Documentation

ecl::CubicSpline::CubicSpline ( ) [inline]

Default constructor.

Definition at line 133 of file cubic_spline.hpp.

template<typename Derived >

ecl::CubicSpline::CubicSpline ( const BluePrint< Derived > & blueprint ) [inline]

Blueprint constructor.

Constructor that allows automatic generation from an existing blueprint. This can be used simply in the following manner for any static element belonging to the BluePrintFactory.

  Array<double> x_set(5);
  Array<double> y_set(5);
  x_set = 0.0, 1.0, 2.0, 3.0, 4.0;
  y_set = 1.0, 2.0, 1.0, 3.0, 4.0;
 CubicSpline cubic_spline = CubicSpline::Natural(x_set,y_set);

Since this is not explicit, it will also allow assignment.

 CubicSpline cubic_spline;
 cubic_spline = CubicSpline::Natural(x_set,y_set);

This will emit a compile time failure if the template argument does not conform to the blueprints concept (refer to ecl_concepts' documentation).

Parameters:

blueprint : the blue print to use to generate this instance.

See also:: ecl::utilities::BluePrintFactory<CubicSpline>.

Definition at line 161 of file cubic_spline.hpp.

virtual ecl::CubicSpline::~CubicSpline ( ) [inline, virtual]

Definition at line 164 of file cubic_spline.hpp.

Member Function Documentation

double ecl::CubicSpline::dderivative ( double x ) const

Spline second derivative.

Extract the second derivative of the spline.

Parameters:

x	: the domain value.

Returns:: double : the second derivative of the spline.

Exceptions:

:	StandardException : throws if input x value is outside the spline range [debug mode only].

Definition at line 47 of file cubic_spline.cpp.

double ecl::CubicSpline::derivative ( double x ) const

Spline derivative.

Extract the derivative of the spline at the indicated value.

Parameters:

x	: the domain value.

Returns:: double : the derivative of the spline.

Exceptions:

:	StandardException : throws if input x value is outside the spline range [debug mode only].

Definition at line 38 of file cubic_spline.cpp.

const Array<double>& ecl::CubicSpline::domain ( ) [inline]

The discretised domain for this spline.

This returns the array of discretised time values that define the domains of each polynomial within the spline.

Returns:: const Array<double>& : the discretised domain.

Definition at line 206 of file cubic_spline.hpp.

double ecl::CubicSpline::operator() ( const double & x ) const

Spline function.

Extract the spline function's value at the indicated location.

Parameters:

x	: the domain value.

Returns:: double : the spline function's value.

Exceptions:

:	StandardException : throws if input x value is outside the spline range [debug mode only].

Definition at line 29 of file cubic_spline.cpp.

const Array<CubicPolynomial>& ecl::CubicSpline::polynomials ( ) [inline]

The polynomial sequence.

This returns a handle to the array of cubic polynomials that make up the spline.

Returns:: const Array<CubicPolynomial>& : the polynomial sequence.

Definition at line 215 of file cubic_spline.hpp.

Friends And Related Function Documentation

friend class blueprints::C2CubicSpline [friend]

Definition at line 170 of file cubic_spline.hpp.

friend class blueprints::DerivativeHeuristicCubicSpline [friend]

Definition at line 164 of file cubic_spline.hpp.

template<typename OutputStream >

OutputStream& operator<<	(	OutputStream &	ostream,
		const CubicSpline &	cubic_spline
	)		`[friend]`

Streaming output insertion operator for for cubic splines.

Streaming output insertion operator for cubic splines.

Template Parameters:

OutputStream : the type of stream being used.

Parameters:

ostream	: the output stream being used.
cubic_spline	: the cubic spline.

Returns:: OutputStream : the output stream.

Definition at line 246 of file cubic_spline.hpp.

Member Data Documentation

Array<CubicPolynomial> ecl::CubicSpline::cubic_polynomials [private]

Definition at line 238 of file cubic_spline.hpp.

Array<double> ecl::CubicSpline::discretised_domain [private]

Definition at line 235 of file cubic_spline.hpp.

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

Public Member Functions

Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation