GeoShield.h

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//
// GeoShield
//
// GeoShield is a helper class used by GeoGeometry to manage the
// grouping of detector shield planes into uber-volumes
//
// Author:  S. Kasahara 10/05

#ifndef GEOSHIELD_H
#define GEOSHIELD_H

#include <map>
#include <list>
#include "TObject.h" // base class, in case we decide to persist
#include "Plex/PlexPlaneId.h"

class TGeoVolume;
class UgliDbiSteelPln;
class GeoShieldGroup;
class GeoGeometry;

class GeoShield : public TObject {

  friend class GeoGeometry; // constructs GeoShield
  
 public:

  // Typedefs and enumerations
  enum EGroupType {
    // Shield group. Every shield volume is assigned to only one group
    // and all shield volumes within a group are enclosed by a common
    // mother volume. 
    kFarInnerE, // Inner vertical(|) planes hugging east side of detector
    kFarInnerW, // Inner vertical(|) planes hugging west side of detector
    kFarOuterE, // Outer wall planes of both vertical(|) and slant(e) on east 
    kFarOuterW, // Outer wall planes of both vertical(|) and slant(w) on west 
    kFarTop,    // Planes of type -,/,\ overlaying top of detector
    kUnknown    
  };

  typedef std::map<EGroupType,GeoShieldGroup*>::iterator GroupMapItr;
  typedef std::map<EGroupType,GeoShieldGroup*>::const_iterator 
                                                           GroupMapConstItr;
  
  // Constructors/Destructors
  GeoShield() : fGeoGeometry(0) {} // def ctor
  virtual ~GeoShield(); // dtor
      
  // State testing methods
  std::list<const TGeoVolume*> GetListOfVolumes(EGroupType group) const;
  virtual void Print(Option_t* option="") const;
  static const char* AsString(EGroupType group);

  // State changing methods
  // add volume to group list, volume is not adopted
  EGroupType AddVolume(const TGeoVolume* volume, PlexPlaneId steelId,
                       const UgliDbiSteelPln* stRow); 

 protected:

  GeoShield(GeoGeometry* geo); // normal ctor invoked by friend GeoGeometry
  // invoked by GeoGeometry after all volumes added: 
  void BuildGroupNodes(TGeoVolume* hallVol); 
  
 private:
    
  // Disable copy and assignment ctor by making them private and w/no imp
  GeoShield(const GeoShield& that);
  GeoShield& operator=(const GeoShield& that);
  
  // list of shield volumes of each group type
  GeoGeometry* fGeoGeometry;  
  std::map<EGroupType, GeoShieldGroup* > fGroupMap;
  
  ClassDef(GeoShield,1)
};

#endif // GEOSHIELD_H

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