BmnFieldCreator.cxx

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#include "BmnFieldCreator.h"
 
#include "BmnFieldConst.h"
#include "BmnFieldMap.h"
#include "BmnFieldMapSym3.h"
#include "BmnNewFieldMap.h"
#include "FairRunAna.h"
#include "FairRuntimeDb.h"
 
#include <iostream>
using std::cerr;
using std::cout;
using std::endl;
 
static BmnFieldCreator gBmnFieldCreator;
 
BmnFieldCreator::BmnFieldCreator()
    : FairFieldFactory()
    , fFieldPar(NULL)
{
#ifdef FairRoot_18_8_0
    fgRinstance = this;
#else
    fCreator = this;
#endif
}
 
BmnFieldCreator::~BmnFieldCreator() {}
 
void BmnFieldCreator::SetParm()
{
    FairRunAna* Run = FairRunAna::Instance();
    FairRuntimeDb* RunDB = Run->GetRuntimeDb();
    fFieldPar = (BmnFieldPar*)RunDB->getContainer("BmnFieldPar");
}
 
FairField* BmnFieldCreator::createFairField()
{
    FairField* fMagneticField = 0;
 
    if (!fFieldPar)
        cerr << "-E-  No field parameters available!" << endl;
    else {
        // Instantiate correct field type
        Int_t fType = fFieldPar->GetType();
        if (fType == 0)
            fMagneticField = new BmnFieldConst(fFieldPar);
        else if (fType == 1)
            fMagneticField = new BmnNewFieldMap(fFieldPar);
        else if (fType == 3)
            fMagneticField = new BmnFieldMapSym3(fFieldPar);
        else
            cerr << "-W- FairRunAna::GetField: Unknown field type " << fType << endl;
 
        // cout << "New field at " << fMagneticField << ", type " << fType << endl;
        //  Initialise field
        if (fMagneticField) {
            fMagneticField->Init();
            // fMagneticField->Print();
        }
    }
    return fMagneticField;
}