vtkTemporalInterpolator.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkTemporalInterpolator.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 vtkTemporalInterpolator_h
#define vtkTemporalInterpolator_h
 
#include "vtkFiltersHybridModule.h" // For export macro
#include "vtkMultiTimeStepAlgorithm.h"
 
class vtkDataSet;
class VTKFILTERSHYBRID_EXPORT vtkTemporalInterpolator : public vtkMultiTimeStepAlgorithm
{
public:
  static vtkTemporalInterpolator* New();
  vtkTypeMacro(vtkTemporalInterpolator, vtkMultiTimeStepAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkSetMacro(DiscreteTimeStepInterval, double);
  vtkGetMacro(DiscreteTimeStepInterval, double);
 
 
  vtkSetMacro(ResampleFactor, int);
  vtkGetMacro(ResampleFactor, int);
 
 
  vtkSetMacro(CacheData, bool);
  vtkGetMacro(CacheData, bool);
 
protected:
  vtkTemporalInterpolator();
  ~vtkTemporalInterpolator() override;
 
  double DiscreteTimeStepInterval;
  int ResampleFactor;
 
  int FillInputPortInformation(int port, vtkInformation* info) override;
  int FillOutputPortInformation(int vtkNotUsed(port), vtkInformation* info) override;
 
  int RequestDataObject(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int Execute(vtkInformation* request, const std::vector<vtkSmartPointer<vtkDataObject>>& inputs,
    vtkInformationVector* outputVector) override;
 
  vtkDataObject* InterpolateDataObject(vtkDataObject* in1, vtkDataObject* in2, double ratio);
 
  virtual vtkDataSet* InterpolateDataSet(vtkDataSet* in1, vtkDataSet* in2, double ratio);
 
  virtual vtkDataArray* InterpolateDataArray(double ratio, vtkDataArray** arrays, vtkIdType N);
 
  enum ArrayMatch
  {
    MATCHED = 0,           
    MISMATCHED_TUPLES = 1, 
    MISMATCHED_COMPS = 2   
  };
 
  virtual ArrayMatch VerifyArrays(vtkDataArray** arrays, int N);
 
  // internally used : Ratio is {0,1} between two time steps
  // DeltaT is time between current 2 steps.
  // These are only valid when 2 time steps are interpolated
  // Higher order schemes will require changes to the API
  double Ratio;
  double DeltaT;
  double Tfrac;
 
private:
  vtkTemporalInterpolator(const vtkTemporalInterpolator&) = delete;
  void operator=(const vtkTemporalInterpolator&) = delete;
};
 
#endif