// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4DrawVoxels.hh,v 1.9 2000/06/06 13:18:55 gcosmo Exp $
// GEANT4 tag $Name: geant4-03-01 $
//
// 
// class G4DrawVoxels
//
// Class description:
//
// Utility class for the visualization of voxels in the detector geometry.
// Define G4DrawVoxelsDebug in the environment at compilation for debugging
// information printed to G4cout.

// History:
// 03/08/1999 The G4VisAttributes have been made member data for lifetime
//            reasons / visualisation - L.G (ask John Allison for further
//            explanation).
// 29/07/1999 First comitted version - L.G.

#ifndef G4DrawVoxels_HH
#define G4DrawVoxels_HH

// *********** what I need to use (include and forward declarations)
//             FOR DRAWING VOXELS ****************
#include "G4Colour.hh"
#include "G4VisAttributes.hh"
#include "G4PlacedPolyhedron.hh" //#include "G4Polyhedron.hh" included

#include "G4SmartVoxelHeader.hh"
#include "G4VoxelLimits.hh"
#include "G4AffineTransform.hh"
#include "G4Vector3D.hh"
#include "G4LogicalVolume.hh"
#include "G4VSolid.hh"

#define voxel_width 0

// ***********************************************************************

class G4DrawVoxels
{
  public: // with description

    G4DrawVoxels();
      // Constructor. It initialises the members data to default colors
      // Copy constructor and assignment operator not supported (array
      // fvoxelcolours ...).

    ~G4DrawVoxels(){};
      // Destructor NOT virtual. Not a base class.
    
    void DrawVoxels(const G4LogicalVolume* lv) const;
    G4PlacedPolyhedronList* CreatePlacedPolyhedra(const G4LogicalVolume*) const;

    void SetVoxelsVisAttributes(G4VisAttributes&,G4VisAttributes&,G4VisAttributes&);
    void SetBoundingBoxVisAttributes(G4VisAttributes&);

  private:
  
    // Member data
    G4VisAttributes fVoxelsVisAttributes[3];
    G4VisAttributes fBoundingBoxVisAttributes;
    
    void ComputeVoxelPolyhedra(const G4LogicalVolume*,const G4SmartVoxelHeader*,G4VoxelLimits&,G4PlacedPolyhedronList*) const;
    
    G4AffineTransform GetAbsoluteTransformation(const G4VPhysicalVolume*) const;
    
    // Copy constructor Assignment operator not supported (array
    // fvoxelcolours ...)
    G4DrawVoxels(const G4DrawVoxels&);	
    G4DrawVoxels operator=(const G4DrawVoxels&);	
};

#endif