dox/Graphics/vtkExtractSelection.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkExtractSelection.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 __vtkExtractSelection_h
#define __vtkExtractSelection_h

#include "vtkExtractSelectionBase.h"

class vtkExtractSelectedBlock;
class vtkExtractSelectedFrustum;
class vtkExtractSelectedIds;
class vtkExtractSelectedLocations;
class vtkExtractSelectedThresholds;
class vtkProbeSelectedLocations;
class vtkSelection;

class VTK_GRAPHICS_EXPORT vtkExtractSelection : public vtkExtractSelectionBase
{
public:
  static vtkExtractSelection *New();
  vtkTypeRevisionMacro(vtkExtractSelection, vtkExtractSelectionBase);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkSetMacro(ShowBounds,int);
  vtkGetMacro(ShowBounds,int);
  vtkBooleanMacro(ShowBounds,int);


  vtkSetMacro(UseProbeForLocations, int);
  vtkGetMacro(UseProbeForLocations, int);
  vtkBooleanMacro(UseProbeForLocations, int);

protected:
  vtkExtractSelection();
  ~vtkExtractSelection();

  virtual int FillInputPortInformation(int port, vtkInformation* info);

  //sets up empty output dataset
  virtual int RequestDataObject(vtkInformation* request,
                                vtkInformationVector** inputVector,
                                vtkInformationVector* outputVector);

  // runs the algorithm and fills the output with results
  virtual int RequestData(vtkInformation *, 
                  vtkInformationVector **, 
                  vtkInformationVector *);

  // used for composite, non-hierarhical input.
  vtkDataObject* RequestDataInternal(
    unsigned int composite_index,
    vtkDataSet* input, vtkSelection* sel,
    vtkInformation* outInfo);

  // Used for hierarchical input.
  vtkDataObject* RequestDataInternal(
    unsigned int composite_index,
    unsigned int level,
    unsigned int index,
    vtkDataSet* input, vtkSelection* sel,
    vtkInformation* outInfo);


  // called for non-composite input or for a block in a composite dataset.
  vtkDataObject* RequestDataFromBlock(vtkDataObject* input, 
    vtkSelection* sel, vtkInformation* outInfo);

  vtkExtractSelectedBlock* BlockFilter;
  vtkExtractSelectedIds* IdsFilter;
  vtkExtractSelectedFrustum* FrustumFilter;
  vtkExtractSelectedLocations* LocationsFilter;
  vtkExtractSelectedThresholds* ThresholdsFilter;
  vtkProbeSelectedLocations* ProbeFilter;

  int UseProbeForLocations;
  int ShowBounds;
private:
  vtkExtractSelection(const vtkExtractSelection&);  // Not implemented.
  void operator=(const vtkExtractSelection&);  // Not implemented.
};

#endif

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