vtkBSplineTransform.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkBSplineTransform.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 vtkBSplineTransform_h
#define vtkBSplineTransform_h

#include "vtkFiltersHybridModule.h" // For export macro
#include "vtkWarpTransform.h"

class vtkAlgorithmOutput;
class vtkBSplineTransformConnectionHolder;
class vtkImageData;

#define VTK_BSPLINE_EDGE 0
#define VTK_BSPLINE_ZERO 1
#define VTK_BSPLINE_ZERO_AT_BORDER 2

class VTKFILTERSHYBRID_EXPORT vtkBSplineTransform : public vtkWarpTransform
{
public:
  static vtkBSplineTransform *New();
  vtkTypeMacro(vtkBSplineTransform,vtkWarpTransform);
  virtual void PrintSelf(ostream& os, vtkIndent indent);


  virtual void SetCoefficientConnection(vtkAlgorithmOutput*);
  virtual void SetCoefficientData(vtkImageData*);
  virtual vtkImageData* GetCoefficientData();


  vtkSetMacro(DisplacementScale, double);
  vtkGetMacro(DisplacementScale, double);


  vtkSetClampMacro(BorderMode, int,
    VTK_BSPLINE_EDGE, VTK_BSPLINE_ZERO_AT_BORDER);
  void SetBorderModeToEdge() {
    this->SetBorderMode(VTK_BSPLINE_EDGE); }
  void SetBorderModeToZero() {
    this->SetBorderMode(VTK_BSPLINE_ZERO); }
  void SetBorderModeToZeroAtBorder() {
    this->SetBorderMode(VTK_BSPLINE_ZERO_AT_BORDER); }
  vtkGetMacro(BorderMode, int);
  const char *GetBorderModeAsString();

  vtkAbstractTransform *MakeTransform();

  unsigned long GetMTime();

protected:
  vtkBSplineTransform();
  ~vtkBSplineTransform();

  void InternalUpdate();

  void InternalDeepCopy(vtkAbstractTransform *transform);


  void ForwardTransformPoint(const float in[3], float out[3]);
  void ForwardTransformPoint(const double in[3], double out[3]);

  void ForwardTransformDerivative(const float in[3], float out[3],
                                  float derivative[3][3]);
  void ForwardTransformDerivative(const double in[3], double out[3],
                                  double derivative[3][3]);

  void InverseTransformPoint(const float in[3], float out[3]);
  void InverseTransformPoint(const double in[3], double out[3]);

  void InverseTransformDerivative(const float in[3], float out[3],
                                  float derivative[3][3]);
  void InverseTransformDerivative(const double in[3], double out[3],
                                  double derivative[3][3]);

//BTX
  void (*CalculateSpline)(const double point[3], double displacement[3],
                          double derivatives[3][3],
                          void *gridPtr, int inExt[6], vtkIdType inInc[3],
                          int borderMode);
//ETX

  double DisplacementScale;
  int BorderMode;

  void *GridPointer;
  double GridSpacing[3];
  double GridOrigin[3];
  int GridExtent[6];
  vtkIdType GridIncrements[3];

private:
  vtkBSplineTransform(const vtkBSplineTransform&);  // Not implemented.
  void operator=(const vtkBSplineTransform&);  // Not implemented.

  vtkBSplineTransformConnectionHolder* ConnectionHolder;
};

#endif