// AK20110616 Class to implement a 3D field map
//            Modified from BLCMDfieldmap.cc from G4beamline v2.03
//
#ifndef IFieldMap_hh
#define IFieldMap_hh 1

#include "IElementField.hxx"
#include "IFieldManager.hxx"
#include "IFieldMapDescription.hxx"
#include "IBLFieldMap.hxx"
#include <string>
#include <TClass.h>

namespace COMET {
 class IFieldMap;
 class IElementField;
 class IElementFieldDescription;
}

class COMET::IFieldMap : public COMET::IElementField {
    public:
        //Constructor
        IFieldMap(std::string fieldMapFile, Double_t scaling, 
                  Double_t gradient, Double_t timeOffset, 
                  const TVector3* translation, const TRotation* rotation);

        static IFieldMap* Recreate(const IElementFieldDescription& description);
        static const char* GetTypeOfDescription(){return IFieldMapDescription::Class()->GetName();}

        //Destructor
        ~IFieldMap();

        // addFieldValue() adds the field for this map to the values in field[].
        // point[] is in global coordinates.
        void getFieldValue(const Double_t LocalPoint[4], Double_t LocalField[6]) const;
        Bool_t isGood() {return fIsGood;};

        virtual const COMET::IElementFieldDescription* MakeDescription();

    private:
        std::string fFilename;
        Double_t fScaling;
        Double_t fGradient;
        Double_t fTimeOffset;
        COMET::IBLFieldMap *fMap;
        Bool_t fIsGood;
};

#endif