ACSpline< T > Class Template Reference

Public Types

• enum { isVectorizable = 0 }
• typedef T value_type

Public Member Functions

• ACSpline (const MArray< T, 1 > &x, const MArray< T, 1 > &y, const MArray< T, 1 > &sigma, const T smooth)
• ACSpline (const MArray< T, 1 > &x, const MArray< T, 1 > &y, const T smooth)
• virtual ~ACSpline ()
• T evaluate (const T x) const
• T operator() (const T x) const
• T evaluate (const T x, T *dfdx1, T *dfdx2) const
• int find_index (const MArray< T, 1 > &X, const T x) const

Protected Member Functions

• void calculateCoefficients (const MArray< T, 1 > &x, const MArray< T, 1 > &y, const MArray< T, 1 > &sigma)
• void solve_five_diag (const MArray< double, 2 > &m, const MArray< double, 1 > &r, MArray< double, 1 > &q)

Protected Attributes

• MArray< double, 2 > coeff_
• MArray< T, 1 > X

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Detailed Description

template<typename T>
class ACSpline< T >

Approximating cubic spline

C++ port of the gnuplot acspline routine

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Member Typedef Documentation

template<typename T >

typedef T ACSpline< T >::value_type

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Member Enumeration Documentation

template<typename T >

anonymous enum

Enumerator:

isVectorizable

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Constructor & Destructor Documentation

template<typename T >

ACSpline< T >::ACSpline	(	const MArray< T, 1 > &	x,
		const MArray< T, 1 > &	y,
		const MArray< T, 1 > &	sigma,
		const T	smooth
	)			[inline]

References ACSpline< T >::calculateCoefficients().

template<typename T >

ACSpline< T >::ACSpline	(	const MArray< T, 1 > &	x,
		const MArray< T, 1 > &	y,
		const T	smooth
	)			[inline]

References ACSpline< T >::calculateCoefficients().

template<typename T >

virtual ACSpline< T >::~ACSpline

(

)

[inline, virtual]

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Member Function Documentation

template<typename T >

T ACSpline< T >::evaluate

(

const T

x

)

const [inline]

evaluate the spline at position x

References ACSpline< T >::coeff_, ACSpline< T >::find_index(), and ACSpline< T >::X.

Referenced by ACSpline< T >::operator()().

template<typename T >

T ACSpline< T >::operator()

(

const T

x

)

const [inline]

evaluate the spline at position x

References ACSpline< T >::evaluate().

template<typename T >

T ACSpline< T >::evaluate	(	const T	x,
		T *	dfdx1,
		T *	dfdx2
	)			const [inline]

evaluate the spline at position x, and return the first and second derivatives in dfdx1 and dfdx2, respectively. either may be NULL in which case the derivative is not evaluated.

References ACSpline< T >::coeff_, ACSpline< T >::find_index(), and ACSpline< T >::X.

template<typename T >

int ACSpline< T >::find_index	(	const MArray< T, 1 > &	X,
		const T	x
	)			const [inline]

References ACSpline< T >::X.

Referenced by ACSpline< T >::evaluate().

template<typename T >

void ACSpline< T >::calculateCoefficients	(	const MArray< T, 1 > &	x,
		const MArray< T, 1 > &	y,
		const MArray< T, 1 > &	sigma
	)			[inline, protected]

References ACSpline< T >::coeff_, ACSpline< T >::solve_five_diag(), and ACSpline< T >::X.

Referenced by ACSpline< T >::ACSpline().

template<typename T >

void ACSpline< T >::solve_five_diag	(	const MArray< double, 2 > &	m,
		const MArray< double, 1 > &	r,
		MArray< double, 1 > &	q
	)			[inline, protected]

Referenced by ACSpline< T >::calculateCoefficients().

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Field Documentation

template<typename T >

MArray<double,2> ACSpline< T >::coeff_ [protected]

Referenced by ACSpline< T >::calculateCoefficients(), and ACSpline< T >::evaluate().

template<typename T >

MArray<T,1> ACSpline< T >::X [protected]

Referenced by ACSpline< T >::calculateCoefficients(), ACSpline< T >::evaluate(), and ACSpline< T >::find_index().