vtkImageBSplineInterpolator.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkImageBSplineInterpolator.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/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 notice for more information.
 
=========================================================================*/
#ifndef vtkImageBSplineInterpolator_h
#define vtkImageBSplineInterpolator_h
 
#include "vtkAbstractImageInterpolator.h"
#include "vtkImagingCoreModule.h" // For export macro
 
#define VTK_IMAGE_BSPLINE_DEGREE_MAX 9
 
class vtkImageData;
struct vtkInterpolationInfo;
 
class VTKIMAGINGCORE_EXPORT vtkImageBSplineInterpolator : public vtkAbstractImageInterpolator
{
public:
  static vtkImageBSplineInterpolator* New();
  vtkTypeMacro(vtkImageBSplineInterpolator, vtkAbstractImageInterpolator);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  void SetSplineDegree(int degree);
  int GetSplineDegree() { return this->SplineDegree; }
  int GetSplineDegreeMinValue() { return 0; }
  int GetSplineDegreeMaxValue() { return VTK_IMAGE_BSPLINE_DEGREE_MAX; }
 
  void ComputeSupportSize(const double matrix[16], int size[3]) override;
 
  bool IsSeparable() override;
 
 
  void PrecomputeWeightsForExtent(const double matrix[16], const int extent[6], int newExtent[6],
    vtkInterpolationWeights*& weights) override;
  void PrecomputeWeightsForExtent(const float matrix[16], const int extent[6], int newExtent[6],
    vtkInterpolationWeights*& weights) override;
 
  void FreePrecomputedWeights(vtkInterpolationWeights*& weights) override;
 
protected:
  vtkImageBSplineInterpolator();
  ~vtkImageBSplineInterpolator() override;
 
  void InternalUpdate() override;
 
  void InternalDeepCopy(vtkAbstractImageInterpolator* obj) override;
 
 
  void GetInterpolationFunc(
    void (**doublefunc)(vtkInterpolationInfo*, const double[3], double*)) override;
  void GetInterpolationFunc(
    void (**floatfunc)(vtkInterpolationInfo*, const float[3], float*)) override;
 
 
  void GetRowInterpolationFunc(
    void (**doublefunc)(vtkInterpolationWeights*, int, int, int, double*, int)) override;
  void GetRowInterpolationFunc(
    void (**floatfunc)(vtkInterpolationWeights*, int, int, int, float*, int)) override;
 
  virtual void BuildKernelLookupTable();
 
  virtual void FreeKernelLookupTable();
 
  int SplineDegree;
  float* KernelLookupTable;
 
private:
  vtkImageBSplineInterpolator(const vtkImageBSplineInterpolator&) = delete;
  void operator=(const vtkImageBSplineInterpolator&) = delete;
};
 
#endif