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

  Program:   Visualization Toolkit
  Module:    vtkCellDataToPointData.h
  Language:  C++
  Date:      $Date$
  Version:   $Revision$


Copyright (c) 1993-2000 Ken Martin, Will Schroeder, Bill Lorensen 
All rights reserved.

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=========================================================================*/
// .NAME vtkCellDataToPointData - map cell data to point data
// .SECTION Description
// vtkCellDataToPointData is a filter that transforms cell data (i.e., data
// specified per cell) into point data (i.e., data specified at cell
// points). The method of transformation is based on averaging the data
// values of all cells using a particular point. Optionally, the input cell
// data can be passed through to the output as well.

// .SECTION Caveats
// This filter is an abstract filter, that is, the output is an abstract type
// (i.e., vtkDataSet). Use the convenience methods (e.g.,
// vtkGetPolyDataOutput(), GetStructuredPointsOutput(), etc.) to get the type
// of output you want.

// .SECTION See Also
// vtkDataSetToDataSetFilter vtkPointData vtkCellData vtkPointDataToCellData


#ifndef __vtkCellDataToPointData_h
#define __vtkCellDataToPointData_h

#include "vtkDataSetToDataSetFilter.h"

class VTK_EXPORT vtkCellDataToPointData : public vtkDataSetToDataSetFilter
{
public:
  static vtkCellDataToPointData *New();
  vtkTypeMacro(vtkCellDataToPointData,vtkDataSetToDataSetFilter);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // Control whether the input cell data is to be passed to the output. If
  // on, then the input cell data is passed through to the output; otherwise,
  // only generated point data is placed into the output.
  vtkSetMacro(PassCellData,int);
  vtkGetMacro(PassCellData,int);
  vtkBooleanMacro(PassCellData,int);

protected:
  vtkCellDataToPointData();
  ~vtkCellDataToPointData() {};
  vtkCellDataToPointData(const vtkCellDataToPointData&) {};
  void operator=(const vtkCellDataToPointData&) {};

  void Execute();

  int PassCellData;
};

#endif


