vtkDataSetAlgorithm.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkDataSetAlgorithm.h,v $

  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 __vtkDataSetAlgorithm_h
#define __vtkDataSetAlgorithm_h

#include "vtkAlgorithm.h"

class vtkDataSet;
class vtkImageData;
class vtkPolyData;
class vtkStructuredPoints;
class vtkStructuredGrid;
class vtkUnstructuredGrid;
class vtkRectilinearGrid;

class VTK_FILTERING_EXPORT vtkDataSetAlgorithm : public vtkAlgorithm
{
public:
  static vtkDataSetAlgorithm *New();
  vtkTypeRevisionMacro(vtkDataSetAlgorithm,vtkAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkDataSet* GetOutput();
  vtkDataSet* GetOutput(int);

  vtkDataObject* GetInput();
  
  vtkPolyData *GetPolyDataOutput();

  vtkStructuredPoints *GetStructuredPointsOutput();

  vtkImageData *GetImageDataOutput();

  vtkStructuredGrid *GetStructuredGridOutput();

  vtkUnstructuredGrid *GetUnstructuredGridOutput();

  vtkRectilinearGrid *GetRectilinearGridOutput();


  void SetInput(vtkDataObject*);
  void SetInput(int, vtkDataObject*);
  void SetInput(vtkDataSet*);
  void SetInput(int, vtkDataSet*);


  void AddInput(vtkDataObject *);
  void AddInput(vtkDataSet*);
  void AddInput(int, vtkDataSet*);
  void AddInput(int, vtkDataObject*);


  virtual int ProcessRequest(vtkInformation* request, 
                             vtkInformationVector** inputVector,
                             vtkInformationVector* outputVector);

protected:
  vtkDataSetAlgorithm();
  ~vtkDataSetAlgorithm() {};


  virtual int RequestDataObject(vtkInformation* request, 
                                vtkInformationVector** inputVector, 
                                vtkInformationVector* outputVector);
  

  virtual int RequestInformation(vtkInformation*, 
                                 vtkInformationVector**, 
                                 vtkInformationVector*) {return 1;};
  

  virtual int RequestData(vtkInformation*, 
                          vtkInformationVector**, 
                          vtkInformationVector*) {return 1;};
  

  virtual int RequestUpdateExtent(vtkInformation*,
                                  vtkInformationVector**,
                                  vtkInformationVector*) 
    {
      return 1;
    };

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

  vtkDataObject *GetInput(int port);

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

#endif

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