dox/Rendering/vtkTransformInterpolator.h

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

  Program:   Visualization Toolkit
  Module:    vtkTransformInterpolator.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 __vtkTransformInterpolator_h
#define __vtkTransformInterpolator_h

#include "vtkObject.h"


class vtkTransform;
class vtkMatrix4x4;
class vtkProp3D;
class vtkTupleInterpolator;
class vtkQuaternionInterpolator;
class vtkTransformList;


class VTK_RENDERING_EXPORT vtkTransformInterpolator : public vtkObject
{
public:
  vtkTypeMacro(vtkTransformInterpolator, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkTransformInterpolator* New();

  int GetNumberOfTransforms();


  double GetMinimumT();
  double GetMaximumT();

  void Initialize();
  

  void AddTransform(double t, vtkTransform *xform);
  void AddTransform(double t, vtkMatrix4x4 *matrix);
  void AddTransform(double t, vtkProp3D *prop3D);

  void RemoveTransform(double t);

  void InterpolateTransform(double t, vtkTransform *xform);

//BTX

  enum {INTERPOLATION_TYPE_LINEAR=0,
        INTERPOLATION_TYPE_SPLINE,
        INTERPOLATION_TYPE_MANUAL
  };
//ETX


  vtkSetClampMacro(InterpolationType,int, INTERPOLATION_TYPE_LINEAR,
                   INTERPOLATION_TYPE_MANUAL);
  vtkGetMacro(InterpolationType,int);
  void SetInterpolationTypeToLinear()
    {this->SetInterpolationType(INTERPOLATION_TYPE_LINEAR);}
  void SetInterpolationTypeToSpline()
    {this->SetInterpolationType(INTERPOLATION_TYPE_SPLINE);}
  void SetInterpolationTypeToManual()
    {this->SetInterpolationType(INTERPOLATION_TYPE_MANUAL);}


  virtual void SetPositionInterpolator(vtkTupleInterpolator*);
  vtkGetObjectMacro(PositionInterpolator,vtkTupleInterpolator);


  virtual void SetScaleInterpolator(vtkTupleInterpolator*);
  vtkGetObjectMacro(ScaleInterpolator,vtkTupleInterpolator);


  virtual void SetRotationInterpolator(vtkQuaternionInterpolator*);
  vtkGetObjectMacro(RotationInterpolator,vtkQuaternionInterpolator);

  unsigned long GetMTime();

protected:
  vtkTransformInterpolator();
  virtual ~vtkTransformInterpolator();

  // Control the interpolation type
  int InterpolationType;

  // Interpolators
  vtkTupleInterpolator      *PositionInterpolator;
  vtkTupleInterpolator      *ScaleInterpolator;
  vtkQuaternionInterpolator *RotationInterpolator;
  
  // Initialize the interpolating splines
  int Initialized;
  vtkTimeStamp InitializeTime;
  void InitializeInterpolation();
  
  // Keep track of inserted data
  vtkTransformList *TransformList;

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

};

#endif