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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkDataSetToPolyDataFilter.cxx,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.

=========================================================================*/
#include "vtkDataSetToPolyDataFilter.h"

#include "vtkDataSet.h"

vtkCxxRevisionMacro(vtkDataSetToPolyDataFilter, "$Revision: 1.15 $");

//----------------------------------------------------------------------------
// Specify the input data or filter.
void vtkDataSetToPolyDataFilter::SetInput(vtkDataSet *input)
{
  this->vtkProcessObject::SetNthInput(0, input);
}

//----------------------------------------------------------------------------
// Specify the input data or filter.
vtkDataSet *vtkDataSetToPolyDataFilter::GetInput()
{
  if (this->NumberOfInputs < 1)
    {
    return NULL;
    }
  
  return (vtkDataSet *)(this->Inputs[0]);
}


//----------------------------------------------------------------------------
// Copy the update information across
void vtkDataSetToPolyDataFilter::ComputeInputUpdateExtents(vtkDataObject *output)
{
  vtkDataObject *input = this->GetInput();

  if (input == NULL)
    {
    return;
    }
  
  this->vtkPolyDataSource::ComputeInputUpdateExtents(output);
  input->RequestExactExtentOn();
}

//----------------------------------------------------------------------------
void vtkDataSetToPolyDataFilter::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os,indent);
}
