itkNonUniformBSpline.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef __itkNonUniformBSpline_h
#define __itkNonUniformBSpline_h


#include <vector>

#include "itkPoint.h"
#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkArray.h"

namespace itk
{
template< unsigned int TDimension = 3 >
class NonUniformBSpline:
  public Object
{
public:
  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;

  itkNewMacro(Self);

  itkTypeMacro(NonUniformBSpline, Object);

  void SetPoints(PointListType & newPoints);

  const PointListType & GetPoints() const;

  void SetKnots(KnotListType & newKnots);

  const KnotListType & GetKnots() const;

  void ComputeChordLengths();

  PointType  EvaluateSpline(const Array< double > & p) const;

  PointType  EvaluateSpline(double t) const;

  void ComputeControlPoints();

  void SetControlPoints(ControlPointListType & ctrlpts);

  const ControlPointListType & GetControlPoints() const;

  double NonUniformBSplineFunctionRecursive(unsigned int order, unsigned int i, double t) const;

  itkSetMacro(SplineOrder, unsigned int);
  itkGetConstReferenceMacro(SplineOrder, unsigned int);
protected:

  NonUniformBSpline();

  virtual ~NonUniformBSpline();

  virtual void PrintSelf(std::ostream & os, Indent indent) const;

  PointListType m_Points;

  KnotListType m_Knots;

  ControlPointListType m_ControlPoints;

  ChordLengthListType m_ChordLength;

  ChordLengthListType m_CumulativeChordLength;

  unsigned int m_SplineOrder;

  unsigned int m_SpatialDimension;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkNonUniformBSpline.hxx"
#endif

#endif // __itkNonUniformBSpline_h