---

Rendering/vtkPropPicker.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkPropPicker.h,v $
  Language:  C++

  Copyright (c) 1993-2002 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 __vtkPropPicker_h
#define __vtkPropPicker_h

#include "vtkAbstractPropPicker.h"

class vtkProp;
class vtkWorldPointPicker;

class VTK_RENDERING_EXPORT vtkPropPicker : public vtkAbstractPropPicker
{
public:
  static vtkPropPicker *New();

  vtkTypeRevisionMacro(vtkPropPicker,vtkAbstractPropPicker);
  void PrintSelf(ostream& os, vtkIndent indent);

  int PickProp(float selectionX, float selectionY, vtkRenderer *renderer);  


  int PickProp(float selectionX, float selectionY, vtkRenderer *renderer, 
               vtkPropCollection* pickfrom);  


  int Pick(float selectionX, float selectionY, float selectionZ, 
           vtkRenderer *renderer);  
  int Pick(float selectionPt[3], vtkRenderer *renderer)
    { return this->Pick( selectionPt[0], 
                         selectionPt[1], selectionPt[2], renderer); };  

protected:
  vtkPropPicker();
  ~vtkPropPicker();

  void Initialize();
  
  vtkPropCollection* PickFromProps;
  
  // Used to get x-y-z pick position
  vtkWorldPointPicker *WorldPointPicker;
private:
  vtkPropPicker(const vtkPropPicker&);  // Not implemented.
  void operator=(const vtkPropPicker&);  // Not implemented.
};

#endif

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