dox/Rendering/vtkLightActor.h

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

  Program:   Visualization Toolkit
  Module:    vtkLightActor.h

  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 __vtkLightActor_h
#define __vtkLightActor_h

#include "vtkProp3D.h"

class vtkLight;
class vtkConeSource;
class vtkPolyDataMapper;
class vtkActor;
class vtkCamera;
class vtkCameraActor;
class vtkBoundingBox;

class VTK_RENDERING_EXPORT vtkLightActor : public vtkProp3D
{
public:
  static vtkLightActor *New();
  vtkTypeMacro(vtkLightActor,vtkProp3D);
  void PrintSelf(ostream& os, vtkIndent indent);


  void SetLight(vtkLight *light);
  vtkGetObjectMacro(Light,vtkLight);
  

  void SetClippingRange(double dNear,
                        double dFar);
  void SetClippingRange(const double a[2]);
  vtkGetVector2Macro(ClippingRange,double);
  
  virtual int RenderOpaqueGeometry(vtkViewport *viewport);

  virtual int HasTranslucentPolygonalGeometry();

  void ReleaseGraphicsResources(vtkWindow *);

  double *GetBounds();

  unsigned long int GetMTime();
  
protected:
  vtkLightActor();
  ~vtkLightActor();
  
  void UpdateViewProps();
  
  vtkLight *Light;
  double ClippingRange[2];
  
  vtkConeSource *ConeSource;
  vtkPolyDataMapper *ConeMapper;
  vtkActor *ConeActor;
  
  vtkCamera *CameraLight;
  vtkCameraActor *FrustumActor;

  vtkBoundingBox *BoundingBox;
  
private:
  vtkLightActor(const vtkLightActor&);  // Not implemented.
  void operator=(const vtkLightActor&);  // Not implemented.
};

#endif