dox/Widgets/vtkPolyDataPointPlacer.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkPolyDataPointPlacer.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 __vtkPolyDataPointPlacer_h
#define __vtkPolyDataPointPlacer_h

#include "vtkPointPlacer.h"

class vtkRenderer;
class vtkPropCollection;
class vtkProp;
class vtkPropPicker;

class VTK_WIDGETS_EXPORT vtkPolyDataPointPlacer : public vtkPointPlacer
{
public:
  static vtkPolyDataPointPlacer *New();


  vtkTypeRevisionMacro(vtkPolyDataPointPlacer,vtkPointPlacer);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Descuription:
  // Add an actor (that represents a terrain in a rendererd scene) to the
  // list. Only props in this list are considered by the PointPlacer
  virtual void AddProp( vtkProp * );
  virtual void RemoveViewProp(vtkProp *prop);
  virtual void RemoveAllProps();
  int          HasProp( vtkProp * );
  int          GetNumberOfProps();


  virtual int ComputeWorldPosition( vtkRenderer *ren,
                                    double displayPos[2], 
                                    double worldPos[3],
                                    double worldOrient[9] );
  

  virtual int ComputeWorldPosition( vtkRenderer *ren,
                                    double displayPos[2], 
                                    double refWorldPos[3],
                                    double worldPos[3],
                                    double worldOrient[9] );
  
  virtual int ValidateWorldPosition( double worldPos[3] );
  
  virtual int ValidateDisplayPosition( vtkRenderer *, double displayPos[2] );
  

  virtual int ValidateWorldPosition( double worldPos[3],
                                     double worldOrient[9] );


  vtkGetObjectMacro( PropPicker, vtkPropPicker );  

protected:
  vtkPolyDataPointPlacer();
  ~vtkPolyDataPointPlacer();

  // The props that represents the terrain data (one or more) in a rendered 
  // scene
  vtkPropCollection  *SurfaceProps;
  vtkPropPicker      *PropPicker;
  
private:
  vtkPolyDataPointPlacer(const vtkPolyDataPointPlacer&);  //Not implemented
  void operator=(const vtkPolyDataPointPlacer&);  //Not implemented
};

#endif

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