// $Id$
//
//    File: DMagneticFieldMap.h
// Created: Thu Dec 21 12:50:04 EST 2006
// Creator: davidl (on Linux alkaid 2.6.9-42.0.2.ELsmp x86_64)
//

#ifndef _DMagneticFieldMap_
#define _DMagneticFieldMap_

#include <JANA/jerror.h>

class DMagneticFieldMap{
	public:
	
		DMagneticFieldMap(){}
		virtual ~DMagneticFieldMap(){}
		
		virtual void GetField(double x, double y, double z, double &Bx, double &By, double &Bz, int method=0) const = 0;

		virtual void GetFieldGradient(double x, double y, double z,
                                      double &dBxdx, double &dBxdy,
                                      double &dBxdz,
                                      double &dBydx, double &dBydy,
                                      double &dBydz,
                                      double &dBzdx, double &dBzdy,
				      double &dBzdz) const = 0;
		virtual	void GetFieldBicubic(double x,double y,double z,
				     double &Bx,double &By,double &Bz) const=0;

		virtual void GetFieldAndGradient(double x,double y,double z,
						 double &Bx,double &By,
						 double &Bz,
					         double &dBxdx, 
						 double &dBxdy,
						 double &dBxdz,
						 double &dBydx, 
						 double &dBydy,
						 double &dBydz,
						 double &dBzdx, 
						 double &dBzdy,
						 double &dBzdz) const = 0;


};

#endif // _DMagneticFieldMap_