de/ddd/G4XXXSGSceneHandler_8hh_source.html

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// John Allison  10th March 2006

// A template for a sophisticated graphics driver with a scene graph.

//?? Lines beginning like this require specialisation for your driver.


#ifndef G4XXXSGSCENEHANDLER_HH

#define G4XXXSGSCENEHANDLER_HH


#include "G4VSceneHandler.hh"


#include "G4PhysicalVolumeModel.hh"

#include <iostream>


namespace JA {

  // Ad hoc tree class and utilities.


  typedef G4PhysicalVolumeModel::G4PhysicalVolumeNodeID PVNodeID;

  typedef std::vector<PVNodeID> PVPath;


  struct Node {

    Node(PVNodeID pvNodeID = PVNodeID(), G4int index = -1):

      fPVNodeID(pvNodeID), fIndex(index) {}

    PVNodeID fPVNodeID;

    G4int fIndex;

    std::vector<Node*> fDaughters;

  };


  void Insert(const PVNodeID* pvPath, size_t pathLength,

        G4int index, Node* node);


  void PrintTree(std::ostream&, Node*);


  void Clear(Node*);

}


typedef JA::Node SceneGraph;


class G4XXXSGSceneHandler: public G4VSceneHandler {


  friend class G4XXXSGViewer;


public:

  G4XXXSGSceneHandler(G4VGraphicsSystem& system,

      const G4String& name);

  virtual ~G4XXXSGSceneHandler();


  // Optional virtual functions...

  void AddSolid(const G4Box&);

  // Further optional AddSolid functions.  Explicitly invoke base

  // class methods if not otherwise defined to avoid warnings about

  // hiding of base class methods.

  void AddSolid(const G4Cons& cons)

  {G4VSceneHandler::AddSolid(cons);}

  void AddSolid(const G4Tubs& tubs)

  {G4VSceneHandler::AddSolid(tubs);}

  void AddSolid(const G4Trd& trd)

  {G4VSceneHandler::AddSolid(trd);}

  void AddSolid(const G4Trap& trap)

  {G4VSceneHandler::AddSolid(trap);}

  void AddSolid(const G4Sphere& sphere)

  {G4VSceneHandler::AddSolid(sphere);}

  void AddSolid(const G4Para& para)

  {G4VSceneHandler::AddSolid(para);}

  void AddSolid(const G4Torus& torus)

  {G4VSceneHandler::AddSolid(torus);}

  void AddSolid(const G4Polycone& polycone)

  {G4VSceneHandler::AddSolid(polycone);}

  void AddSolid(const G4Polyhedra& polyhedra)

  {G4VSceneHandler::AddSolid(polyhedra);}

  void AddSolid(const G4Orb& orb)

  {G4VSceneHandler::AddSolid(orb);}

  void AddSolid(const G4Ellipsoid& ellipsoid)

  {G4VSceneHandler::AddSolid(ellipsoid);}

  void AddSolid(const G4TessellatedSolid& tess)

  {G4VSceneHandler::AddSolid(tess);}

  void AddSolid(const G4VSolid& solid)

  {G4VSceneHandler::AddSolid(solid);}

  // More optional functions...

  // void AddCompound(const G4VTrajectory&);

  // void AddCompound(const G4VHit&);

  // void AddCompound(const G4THitsMap<G4double>&);

  // void AddCompound(const G4THitsMap<G4StatDouble>&);

  void PreAddSolid(const G4Transform3D& objectTransformation,

       const G4VisAttributes&);

  void PostAddSolid();


  // Required implementation of pure virtual functions...


  void AddPrimitive(const G4Polyline&);

  void AddPrimitive(const G4Text&);

  void AddPrimitive(const G4Circle&);

  void AddPrimitive(const G4Square&);

  void AddPrimitive(const G4Polyhedron&);

  // Further optional AddPrimitive methods.  Explicitly invoke base

  // class methods if not otherwise defined to avoid warnings about

  // hiding of base class methods.

  void AddPrimitive(const G4Polymarker& polymarker)

  {G4VSceneHandler::AddPrimitive (polymarker);}

  void AddPrimitive(const G4Scale& scale)

  {G4VSceneHandler::AddPrimitive (scale);}

  // Further related optional virtual functions...

  void BeginPrimitives(const G4Transform3D& objectTransformation);

  void EndPrimitives();


  // Further optional virtual functions...


  // void BeginModeling();

  // void EndModeling();


  // Administration functions.


  void ClearStore ();

  void ClearTransientStore ();


protected:


  static G4int fSceneIdCount;  // Counter for XXXSG scene handlers.


  // Utility for PreAddSolid and BeginPrimitives.

  void CreateCurrentItem(const G4String&);


  //?? Define the scene graph.  (For emulation, use an ad hoc tree class.)

  SceneGraph fSceneGraph;


private:


#ifdef G4XXXFileDEBUG

  void PrintThings();

#endif


};


#endif