stir::BSpline Namespace Reference

Namespace for functions and classes for B-Spline interpolation in the STIR library. More...

Classes
class	BSplines1DRegularGrid
	Temporary class for 1D B-splines. More...
class	BSplines_Tests
	A simple class to test the BSplines function. More...
class	BSplinesRegularGrid
	A class for n-dimensional BSpline interpolation when the input samples are on a regular grid. More...
class	BSplinesRegularGrid1D_Tests
	A simple class to test the BSplinesRegularGrid class for 1D arrays. More...
class	BSplinesRegularGrid_Tests
	A simple class to BSplinesRegularGrid for 2D arrays. More...

Typedefs
typedef double	pos_type
	The type used for relative positions between the grid points.

Enumerations
enum	BSplineType {   near_n , linear , quadratic , cubic ,   quartic , quintic , oMoms }
	enum providing constants to define the type of B-Spline used for interpolation

Functions
template<class RandIterOut, class IterT, class constantsT>
void	BSplines_coef (RandIterOut c_begin_iterator, RandIterOut c_end_iterator, IterT input_begin_iterator, IterT input_end_iterator, const constantsT z1, const constantsT z2, const constantsT lambda)
	compute BSpline coefficients that gives the BSpline that interpolates the given data
template<typename pos_type>
pos_type	BSplines_1st_der_weight (const pos_type relative_position, const BSplineType spline_type)
	return value of the first derivative of the spline
template<typename pos_type>
pos_type	BSplines_weights (const pos_type relative_position, const BSplineType spline_type)
	return spline value
const PieceWiseFunction< pos_type > &	bspline_function (BSplineType type)
template<typename posT>
posT	cubic_BSplines_weight (const posT relative_position)
template<typename posT>
posT	oMoms_weight (const posT relative_position)
template<typename posT>
posT	cubic_BSplines_1st_der_weight (const posT relative_position)
template<typename posT>
posT	BSplines_1st_der_weight (const posT relative_position, const BSplineType spline_type)
template<typename posT>
posT	BSplines_weights (const posT relative_position, const BSplineType spline_type)

Detailed Description

Namespace for functions and classes for B-Spline interpolation in the STIR library.