Gabriele Cosmo
210 lines
7.2 KiB
C++
210 lines
7.2 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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//
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// -----------------------------------------------------------------
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//
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// ------------------- class G4UnitsTable -----------------
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//
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// 17-05-98: first version, M.Maire
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// 13-10-98: Units and symbols printed in fixed length, M.Maire
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// 18-01-00: BestUnit for three vector, M.Maire
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// 06-03-01: Migrated to STL vectors, G.Cosmo
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//
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// Class description:
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//
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// This class maintains a table of Units.
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// A Unit has a name, a symbol, a value and belong to a category (i.e. its
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// dimensional definition): Length, Time, Energy, etc...
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// The Units are grouped by category. The TableOfUnits is a list of categories.
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// The class G4BestUnit allows to convert automaticaly a physical quantity
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// from its internal value into the most appropriate Unit of the same category.
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#ifndef G4UnitsTable_HH
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#define G4UnitsTable_HH
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#include "globals.hh"
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#include <vector>
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#include "G4ThreeVector.hh"
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class G4UnitsCategory;
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class G4UnitDefinition;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#ifdef G4MULTITHREADED
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class G4UnitsTable : public std::vector<G4UnitsCategory*>
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{
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public:
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using std::vector<G4UnitsCategory*>::vector;
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G4UnitsTable();
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~G4UnitsTable();
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public:
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void Synchronize();
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G4bool Contains(const G4UnitDefinition*,const G4String&);
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};
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#else
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typedef std::vector<G4UnitsCategory*> G4UnitsTable;
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#endif
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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class G4UnitDefinition
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{
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public: // with description
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G4UnitDefinition(const G4String& name, const G4String& symbol,
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const G4String& category, G4double value);
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public: // without description
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~G4UnitDefinition();
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G4bool operator==(const G4UnitDefinition&) const;
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G4bool operator!=(const G4UnitDefinition&) const;
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public: // with description
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inline const G4String& GetName() const;
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inline const G4String& GetSymbol() const;
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inline G4double GetValue() const;
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void PrintDefinition();
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static void BuildUnitsTable();
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static void PrintUnitsTable();
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static void ClearUnitsTable();
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static G4UnitsTable& GetUnitsTable();
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static G4bool IsUnitDefined(const G4String&);
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static G4double GetValueOf (const G4String&);
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static G4String GetCategory(const G4String&);
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private:
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G4UnitDefinition(const G4UnitDefinition&);
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G4UnitDefinition& operator=(const G4UnitDefinition&);
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private:
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G4String Name; // SI name
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G4String SymbolName; // SI symbol
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G4double Value; // value in the internal system of units
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static G4ThreadLocal G4UnitsTable *pUnitsTable; // table of Units
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static G4ThreadLocal G4bool unitsTableDestroyed;
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size_t CategoryIndex; // category index of this unit
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#ifdef G4MULTITHREADED
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static G4UnitsTable *pUnitsTableShadow; // shadow of table of Units
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public:
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inline static G4UnitsTable& GetUnitsTableShadow()
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{return *pUnitsTableShadow;}
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#endif
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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typedef std::vector<G4UnitDefinition*> G4UnitsContainer;
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class G4UnitsCategory
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{
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public: // without description
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explicit G4UnitsCategory(const G4String& name);
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~G4UnitsCategory();
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G4bool operator==(const G4UnitsCategory&) const;
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G4bool operator!=(const G4UnitsCategory&) const;
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public: // without description
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inline const G4String& GetName() const;
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inline G4UnitsContainer& GetUnitsList();
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inline G4int GetNameMxLen() const;
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inline G4int GetSymbMxLen() const;
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inline void UpdateNameMxLen(G4int len);
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inline void UpdateSymbMxLen(G4int len);
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void PrintCategory();
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private:
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G4UnitsCategory(const G4UnitsCategory&);
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G4UnitsCategory& operator=(const G4UnitsCategory&);
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private:
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G4String Name; // dimensional family: Length,Volume,Energy
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G4UnitsContainer UnitsList; // List of units in this family
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G4int NameMxLen; // max length of the units name
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G4int SymbMxLen; // max length of the units symbol
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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class G4BestUnit
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{
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public: // with description
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G4BestUnit(G4double internalValue, const G4String& category);
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G4BestUnit(const G4ThreeVector& internalValue, const G4String& category);
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// These constructors convert a physical quantity from its internalValue
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// into the most appropriate unit of the same category.
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// In practice it builds an object VU = (newValue, newUnit)
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~G4BestUnit();
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public: // without description
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inline G4double* GetValue();
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inline const G4String& GetCategory() const;
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inline size_t GetIndexOfCategory() const;
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operator G4String () const; // Conversion to best string.
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public: // with description
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friend std::ostream& operator<<(std::ostream&,G4BestUnit VU);
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// Default format to print the objet VU above.
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private:
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G4double Value[3]; // value in the internal system of units
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G4int nbOfVals; // G4double=1; G4ThreeVector=3
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G4String Category; // dimensional family: Length,Volume,Energy ...
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size_t IndexOfCategory; // position of Category in UnitsTable
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};
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#include "G4UnitsTable.icc"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#endif
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