/usr/include/InsightToolkit/Common/itkNonUniformBSpline.h is in libinsighttoolkit3-dev 3.20.1-1.
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Program: Insight Segmentation & Registration Toolkit
Module: itkNonUniformBSpline.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkNonUniformBSpline_h
#define __itkNonUniformBSpline_h
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include <vector>
#include "itkPoint.h"
#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkArray.h"
namespace itk {
/**
* \class NonUniformBSpline
* \brief BSpline with nonuniform knot spacing.
*
* This class is a bspline with nonuniform knot spacing. The
* use can specify a set of points and a set of knots and the
* spline will attempt to find the control points which will
* cause the spline to interpolate the points.
*
* CAUTION: THIS CLASS IS STILL UNDER DEVELOPMENT.
*
*/
template < unsigned int TDimension = 3 >
class NonUniformBSpline
: public Object
{
public:
/**
Typedefs
*/
typedef NonUniformBSpline Self;
typedef Object Superclass;
typedef SmartPointer < Self > Pointer;
typedef SmartPointer < const Self > ConstPointer;
typedef double ScalarType;
typedef itk::Point< ScalarType, TDimension > PointType;
typedef std::vector < PointType > PointListType;
typedef PointListType * PointListPointer;
typedef std::vector < double > KnotListType;
typedef std::vector<double> CoordinateListType;
typedef itk::Point<double, TDimension > ControlPointType;
typedef std::vector< ControlPointType > ControlPointListType;
typedef ControlPointListType * ControlPointListPointer;
typedef std::vector<double> ChordLengthListType;
/** Method for creation through the object factory. */
itkNewMacro( Self );
/** Method for creation through the object factory. */
itkTypeMacro( NonUniformBSpline, Object );
/**
* Set points which the spline will attempt to interpolate.
*/
void SetPoints( PointListType & newPoints );
/**
* Get the points the spline is trying to interpolate.
*/
const PointListType & GetPoints() const;
/**
* Set the knot vector. Knots may be nonuniformly spaced.
* Knots will be rescaled to be between 0 and 1.
*/
void SetKnots( KnotListType & newKnots);
/**
* Get the knot vector.
*/
const KnotListType & GetKnots() const;
/**
* Computes the chord lengths based on the points.
*/
void ComputeChordLengths();
/**
* Methods for evaluating the spline.
* The parameterization is always between 0 and 1.
*/
PointType EvaluateSpline(const Array<double> & p) const;
PointType EvaluateSpline( double t ) const;
/**
* Compute the control points.
*/
void ComputeControlPoints();
/**
* Set the control points for the spline.
*/
void SetControlPoints( ControlPointListType& ctrlpts );
/**
* Get the control points for the spline
*/
const ControlPointListType & GetControlPoints() const;
/**
* Evaluate the basis functions directly.
* order - order of the basis function, i.e. 3 = cubic.
* i - basis function number, zero based.
* t - parameter of the spline.
*/
double NonUniformBSplineFunctionRecursive(unsigned int order, unsigned int i, double t) const;
/**
* Set the order of the spline.
*/
itkSetMacro( SplineOrder, unsigned int );
itkGetConstReferenceMacro( SplineOrder, unsigned int );
protected:
/**
* Constructor
*/
NonUniformBSpline();
/**
* Virtual destructor
*/
virtual ~NonUniformBSpline();
/**
* Method to print the object.
*/
virtual void PrintSelf( std::ostream& os, Indent indent ) const;
/**
* Points that the spline attempts to intepolate.
*/
PointListType m_Points;
/**
* The knots of spline.
*/
KnotListType m_Knots;
/**
* The control points of the spline.
*/
ControlPointListType m_ControlPoints;
/**
* The chord length computed from m_Points.
*/
ChordLengthListType m_ChordLength;
/**
* The cumulative chord length computed from m_Points
*/
ChordLengthListType m_CumulativeChordLength;
/**
* The order of the spline.
*/
unsigned int m_SplineOrder;
/**
* The spatial dimension. Saved from the template parameter.
*/
unsigned int m_SpatialDimension;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkNonUniformBSpline.txx"
#endif
#endif // __itkNonUniformBSpline_h
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