field.h

/* 
Beam Delivery Simulation (BDSIM) Copyright (C) BDSIM Collaboration, 2001 - 2026.
 
This file is part of BDSIM.
 
BDSIM is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published 
by the Free Software Foundation version 3 of the License.
 
BDSIM is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with BDSIM.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FIELD_H
#define FIELD_H
 
#include <iomanip>
#include <iostream>
#include <string>
 
#include "published.h"
 
namespace GMAD
{
  class Field : public Published<Field>
  {
  public:
    std::string name;                 
    std::string type;                 
    double      eScaling;             
    double      bScaling;             
    std::string integrator;           
    bool        globalTransform;      
    std::string magneticFile;         
    std::string magneticInterpolator; 
    std::string electricFile;         
    std::string electricInterpolator; 
    std::string fieldModulator;       
 
    double x; 
    double y; 
    double z; 
    double t; 
    double phi;
    double theta;
    double psi;
    double axisX;
    double axisY;
    double axisZ;
    double angle;
    bool   axisAngle; 
 
    bool   autoScale; 
 
    double maximumStepLength;
 
    double maximumStepLengthOverride;
 
    std::string magneticSubField;
    std::string electricSubField;
 
    std::string magneticReflection;
    std::string electricReflection;
 
    std::string fieldParameters;
 
    Field();
    void clear();
    void print()const;
    template <typename T>
    void set_value(std::string property, T value, bool bExit = true);
 
 
  private:
    void PublishMembers();
  };
 
  template <typename T>
  void Field::set_value(std::string property, T value, bool bExit)
  {
#ifdef BDSDEBUG
      std::cout << "field> Setting value " << std::setw(25) << std::left << property << value << std::endl;
#endif
    // member method can throw runtime_error, catch and exit gracefully
    try
      {set(this,property,value);}
    catch (const std::runtime_error&)
      {
        std::cerr << "Error: field> unknown option \"" << property
                  << "\" with value \"" << value << "\"" << std::endl;
        if (bExit)
          {exit(1);}
        else
          {std::rethrow_exception(std::current_exception());} // to be caught by python
      }
    }
  }
 
#endif