ShipCompField.h

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// SPDX-License-Identifier: LGPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright CERN for the benefit of the SHiP
// Collaboration
 
#ifndef FIELD_SHIPCOMPFIELD_H_
#define FIELD_SHIPCOMPFIELD_H_
 
#include <span>
#include <string>
#include <vector>
 
#include "TVirtualMagField.h"
 
class ShipCompField : public TVirtualMagField {
 public:
 
  ShipCompField(const std::string& label, TVirtualMagField* firstField);
 
 
  ShipCompField(const std::string& label, TVirtualMagField* firstField,
                TVirtualMagField* secondField);
 
 
  ShipCompField(const std::string& label,
                const std::vector<TVirtualMagField*>& theFields);
 
  virtual ~ShipCompField();
 
 
  virtual void Field(const Double_t* position, Double_t* B);
 
 
  size_t nComposite() const { return theFields_.size(); }
 
 
  std::span<TVirtualMagField* const> getCompFields() const {
    return theFields_;
  }
 
  ClassDef(ShipCompField, 1);
 
 protected:
 private:
  ShipCompField(const ShipCompField&) = delete;
  ShipCompField& operator=(const ShipCompField&) = delete;
 
  std::vector<TVirtualMagField*> theFields_;
};
 
#endif  // FIELD_SHIPCOMPFIELD_H_