vtkPeriodicFilter.h

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

  Program:   Visualization Toolkit
  Module:    vtkPeriodicFiler.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 vtkPeriodicFilter_h
#define vtkPeriodicFilter_h

#include "vtkFiltersParallelModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"

#include <set> // For block selection
#include <vector> // For pieces number

class vtkCompositeDataIterator;
class vtkCompositeDataSet;
class vtkDataObjectTreeIterator;
class vtkMultiPieceDataSet;

#define VTK_ITERATION_MODE_DIRECT_NB 0    // Generate a user-provided number of periods
#define VTK_ITERATION_MODE_MAX       1    // Generate a maximum of periods, i.e. a full period.

class VTKFILTERSPARALLEL_EXPORT vtkPeriodicFilter : public vtkMultiBlockDataSetAlgorithm
{
public:
  vtkTypeMacro(vtkPeriodicFilter, vtkMultiBlockDataSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkSetClampMacro(IterationMode, int,
                   VTK_ITERATION_MODE_DIRECT_NB,
                   VTK_ITERATION_MODE_MAX);
  vtkGetMacro(IterationMode, int);
  void SetIterationModeToDirectNb()
    { this->SetIterationMode(VTK_ITERATION_MODE_DIRECT_NB); }
  void SetIterationModeToMax()
    { this->SetIterationMode(VTK_ITERATION_MODE_MAX); }


  vtkSetMacro(NumberOfPeriods, int);
  vtkGetMacro(NumberOfPeriods, int);

  virtual void AddIndex(unsigned int index);

  virtual void RemoveIndex(unsigned int index);

  virtual void RemoveAllIndices();

protected:
  vtkPeriodicFilter();
  ~vtkPeriodicFilter();

  // see algorithm for more info
  virtual int FillInputPortInformation(int port, vtkInformation* info);

  virtual int RequestData(vtkInformation *,
                          vtkInformationVector **,
                          vtkInformationVector *);


  virtual void CreatePeriodicDataSet(vtkCompositeDataIterator* loc,
                                     vtkCompositeDataSet* output,
                                     vtkCompositeDataSet* input) = 0;


  virtual void SetPeriodNumber(vtkCompositeDataIterator* loc,
                               vtkCompositeDataSet* output,
                               int nbPeriod) = 0;

  std::vector<int> PeriodNumbers;     // Periods numbers by leaf
  bool ReducePeriodNumbers;

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

  int IterationMode;
  int NumberOfPeriods;      // User provided number of periods

  std::set<vtkIdType> Indices;          // Selected indices
};

#endif