G4Scene.hh

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// $Id: G4Scene.hh 66373 2012-12-18 09:41:34Z gcosmo $
//
// 
// Scene  John Allison  19th July 1996.
//
// Class Description:
//
// Defines the viewable scene.

#ifndef G4SCENE_HH
#define G4SCENE_HH

#include "globals.hh"
#include "G4ios.hh"

class G4VPhysicalVolume;

#include "G4VisExtent.hh"
#include "G4Point3D.hh"
#include "G4VModel.hh"
#include <vector>

class G4Scene {

public: // With description

  friend std::ostream& operator << (std::ostream& os, const G4Scene& d);

  enum {UNLIMITED = -1};

  G4Scene (const G4String& name = "scene-with-unspecified-name");
  ~G4Scene ();

  // Makes use of default (compiler generated) copy constructor and
  // assignment operator.

  G4bool operator == (const G4Scene&) const;
  G4bool operator != (const G4Scene&) const;

  // Get functions...

  const G4String& GetName () const;

  G4bool IsEmpty () const;

  struct Model {
    Model(G4VModel* pModel): fActive(true), fpModel(pModel) {}
    G4bool fActive;
    G4VModel* fpModel;
  };

  const std::vector<Model>& GetRunDurationModelList () const;
  // Contains models which are expected to last for the duration of
  // the run, for example geometry volumes.

  const std::vector<Model>& GetEndOfEventModelList () const;
  // Contains models which are described at the end of event when the
  // scene is current.

  const std::vector<Model>& GetEndOfRunModelList () const;
  // Contains models which are described at the end of event when the
  // scene is current.

  const G4VisExtent& GetExtent () const;
  // Overall extent of all objects in the scene.

  const G4Point3D& GetStandardTargetPoint () const;
  // Usually centre of extent.  See G4ViewParameters for definition.

  G4bool GetRefreshAtEndOfEvent () const;
  // If true, the visualization manager will request viewer to refresh
  // "transient" objects, such as hits, at end of event.  Otherwise
  // they will be accumulated.

  G4int GetMaxNumberOfKeptEvents() const;
  // If RefreshAtEndOfEvent is false, events of the current run are
  // kept up to this maximum number.  A negative value means all
  // events of current run are kept.  The events are available for
  // viewing at the end of run, but are deleted just before the start
  // of the next run.

  G4bool GetRefreshAtEndOfRun () const;
  // If true, the visualization manager will request viewer to refresh
  // "transient" objects, such as hits, at end of run.  Otherwise
  // they will be accumulated.

  // Add and Set functions...

  G4bool AddRunDurationModel (G4VModel*, G4bool warn = false);
  // Adds models of type which are expected to last for the duration
  // of the run, for example geometry volumes.
  // Returns false if model is already in the list.
  // Prints warnings if warn is true.

  G4bool AddWorldIfEmpty (G4bool warn = false);
  // In some situations, if the user asks for a drawing and has not
  // yet set any run duration models it makes sense to put the "world"
  // in there by default.
  // Returns false if model is already in the list.
  // Prints warnings if warn is true.

  G4bool AddEndOfEventModel (G4VModel*, G4bool warn = false);
  // Adds models of type which are described at the end of event when
  // the scene is current.
  // Returns false if model is already in the list.
  // Prints warnings if warn is true.

  G4bool AddEndOfRunModel (G4VModel*, G4bool warn = false);
  // Adds models of type which are described at the end of run when
  // the scene is current.
  // Returns false if model is already in the list.
  // Prints warnings if warn is true.

  void SetName (const G4String&);
  // Use with care.  User normally sets scene name by vis commands.

  std::vector<Model>& SetRunDurationModelList ();
  // Allows you to change the model list - do with care!

  std::vector<Model>& SetEndOfEventModelList ();
  // Allows you to change the model list - do with care!

  std::vector<Model>& SetEndOfRunModelList ();
  // Allows you to change the model list - do with care!

  void SetRefreshAtEndOfEvent(G4bool);
  // If set true, the visualization manager will request viewer to
  // refresh "transient" objects, such as hits, at end of event.
  // Otherwise they will be accumulated.

  void SetMaxNumberOfKeptEvents(G4int);
  // If RefreshAtEndOfEvent is false, events of the current run are
  // kept up to this maximum number.  A negative value means all
  // events of current run are kept.  The events are available for
  // viewing at the end of run, but are deleted just before the start
  // of the next run.

  void SetRefreshAtEndOfRun(G4bool);
  // If set true, the visualization manager will request viewer to
  // refresh "transient" objects, such as hits, at end of run.
  // Otherwise they will be accumulated.

  // Other functions...

  void CalculateExtent();
  // (Re-)calculates the extent from the extents of its models.

private:
  G4String fName;
  std::vector<Model> fRunDurationModelList;
  std::vector<Model> fEndOfEventModelList;
  std::vector<Model> fEndOfRunModelList;
  G4VisExtent fExtent;
  G4Point3D   fStandardTargetPoint;
  G4bool      fRefreshAtEndOfEvent;
  G4bool      fRefreshAtEndOfRun;
  G4int       fMaxNumberOfKeptEvents;
};

#include "G4Scene.icc"

#endif