InterpolationScheme Class Reference

Executes an interpolation scheme. More...

#include <interpolation_methods.h>

Public Member Functions
	InterpolationScheme (scheme_value value)
	Construct a new interp Scheme object, by providing the scheme value.
scheme_value	get_priority () const
	Get the value object.
int	num_nonzero_coeffs () const
	Compute the number of non-zero coefficients in the interpolation scheme.
template<typename T >
T	interpolate (const T *v, const int offset=0) const
	Executes the interpolation scheme on the data provided.
bool	is_better_than (const InterpolationScheme &s) const
	Determines whether another interpScheme has greater value than this one.

Public Attributes
int	number_of_datapoints_to_left
int	first_nonzero_coeff
int	last_nonzero_coeff

Private Attributes
scheme_value	priority
double	scheme_coeffs [8]

Detailed Description

Executes an interpolation scheme.

The scheme that an instance executes is determined by the priority that is passed at construction.

Constructor & Destructor Documentation

InterpolationScheme()

InterpolationScheme::InterpolationScheme

(

scheme_value

value

)

Construct a new interp Scheme object, by providing the scheme value.

Parameters

value

A value associtated to one of the possible schemes

Member Function Documentation

get_priority()

scheme_value InterpolationScheme::get_priority

(

)

const

Get the value object.

Returns

scheme_value

interpolate()

template<typename T >

T InterpolationScheme::interpolate ( const T *  v, const int  offset = 0  ) const

inline

Executes the interpolation scheme on the data provided.

The interpolation schemes are all of the form interpolated_value = \sum_{i=0}^{7} scheme_coeffs[i] * v[i], so provided that the coefficients have been set correctly in construction (and the data gathered appropriately), we can run the same for loop for each interpolation scheme.

For slight speedup, the actual sum performed loops over those i such that 0 <= first_nonzero_coeff <= i <= last_nonzero_coeff <= 7.

Parameters

v	Sample datapoints to use in interpolation; v[0] should be the first of 8 values
offset	[Default 0] Read buffer from v[offset] rather than v[0]

Returns

double Interpolated value

is_better_than()

bool InterpolationScheme::is_better_than

(

const InterpolationScheme &

s

)

const

Determines whether another interpScheme has greater value than this one.

Parameters

s	The other interpScheme to compare against

Returns

true This scheme has greater value

false This scheme has lesser, or equal, value to s

num_nonzero_coeffs()

int InterpolationScheme::num_nonzero_coeffs

(

)

const

Compute the number of non-zero coefficients in the interpolation scheme.

Returns

int Number of non-zero coefficients in the interpolation scheme

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

• tdms/include/interpolation_methods.h
• tdms/src/interpolation_methods.cpp