include/DDRec/IMaterial.h

0001 //==========================================================================
0002 //  AIDA Detector description implementation
0003 //--------------------------------------------------------------------------
0004 // Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
0005 // All rights reserved.
0006 //
0007 // For the licensing terms see $DD4hepINSTALL/LICENSE.
0008 // For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
0009 //
0010 // Author     : F.Gaede
0011 //
0012 //==========================================================================
0013 #ifndef DDREC_IMATERIAL_H
0014 #define DDREC_IMATERIAL_H
0015
0016 #include <string>
0017 #include <ostream>
0018
0019 namespace dd4hep { namespace rec {
0020
0021   /** Interface for material description for tracking.
0022    *
0023    * @author F.Gaede, DESY
0024    * @version $Id$
0025    * @date Apr 6 2014
0026    */
0027
0028   class IMaterial {
0029
0030   protected:
0031     /// Assignment operator
0032     IMaterial& operator=(const IMaterial&) { return *this; }
0033
0034   public:
0035
0036     /// Destructor
0037     virtual ~IMaterial() {}
0038
0039     /// material name
0040     virtual std::string name() const =0 ;
0041
0042     /// averaged atomic number
0043     virtual double A() const =0 ;
0044
0045     /// averaged proton number
0046     virtual double Z() const =0 ;
0047
0048     /// density - units ?
0049     virtual double density() const =0 ;
0050
0051     /// radiation length - units ?
0052     virtual double radiationLength() const =0 ;
0053
0054     /// interaction length - units ?
0055     virtual double interactionLength() const =0 ;
0056
0057   };
0058
0059  /// dump IMaterial operator
0060   inline std::ostream& operator<<( std::ostream& os , const IMaterial& m ) {
0061
0062     os << "  " << m.name() << ", A: " << m.A()  << ", Z: " << m.Z() << ", density: " << m.density() << ", radiationLength: " <<  m.radiationLength()
0063        << ", interactionLength: " << m.interactionLength() ;
0064
0065     return os ;
0066   }
0067
0068   } } /* namespace rec */
0069
0070
0071
0072 #endif // DDREC_IMATERIAL_H