Segmentation.h

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//==========================================================================
//  AIDA Detector description implementation 
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
//==========================================================================
 
/*
 * Segmentation.h
 *
 *  Created on: Jun 27, 2013
 *      Author: Christian Grefe, CERN
 */
 
#ifndef DDSEGMENTATION_SEGMENTATION_H
#define DDSEGMENTATION_SEGMENTATION_H
 
#include <DD4hep/detail/SegmentationsInterna.h>
#include <DDSegmentation/BitFieldCoder.h>
#include <DDSegmentation/SegmentationParameter.h>
 
#include <map>
#include <set>
#include <string>
#include <vector>
 
namespace dd4hep {
  namespace DDSegmentation {
 
    typedef SegmentationParameter* Parameter;
    typedef std::vector<Parameter> Parameters;
    typedef TypedSegmentationParameter<int>* IntParameter;
    typedef TypedSegmentationParameter<float>* FloatParameter;
    typedef TypedSegmentationParameter<double>* DoubleParameter;
    typedef TypedSegmentationParameter<std::string>* StringParameter;
    typedef TypedSegmentationParameter<std::vector<int> >* IntVecParameter;
    typedef TypedSegmentationParameter<std::vector<float> >* FloatVecParameter;
    typedef TypedSegmentationParameter<std::vector<double> >* DoubleVecParameter;
    typedef TypedSegmentationParameter<std::vector<std::string> >* StringVecParameter;
    typedef SegmentationParameter::UnitType UnitType;
 
    struct Vector3D {
      Vector3D(double x_val = 0., double y_val = 0., double z_val = 0.) :
        X(x_val), Y(y_val), Z(z_val) {
      }
      template<typename T> Vector3D(const T& v) {
        X = v.x();
        Y = v.y();
        Z = v.Z();
      }
      double x() const {
        return X;
      }
      double y() const {
        return Y;
      }
      double z() const {
        return Z;
      }
      double X, Y, Z;
    };
 
    class Segmentation {
    public:
      virtual ~Segmentation();
 
      virtual void addSubsegmentation(long key_min, long key_max, Segmentation* entry);
      virtual Vector3D position(const CellID& cellID) const = 0;
      virtual CellID cellID(const Vector3D& localPosition, const Vector3D& globalPosition,
                            const VolumeID& volumeID) const = 0;
      virtual VolumeID volumeID(const CellID& cellID) const;
      virtual void neighbours(const CellID& cellID, std::set<CellID>& neighbours) const;
      virtual std::string fieldDescription() const {
        return _decoder->fieldDescription();
      }
      virtual const std::string& name() const {
        return _name;
      }
      virtual void setName(const std::string& value) {
        _name = value;
      }
      virtual const std::string& type() const {
        return _type;
      }
      virtual const std::string& description() const {
        return _description;
      }
      virtual const BitFieldCoder* decoder()  const {
        return _decoder;
      }
      virtual void setDecoder(const BitFieldCoder* decoder);
      virtual Parameter parameter(const std::string& parameterName) const;
      virtual Parameters parameters() const;
      virtual void setParameters(const Parameters& parameters);
      virtual std::vector<double> cellDimensions(const CellID& cellID) const;
      virtual bool cellsSpanVolumes() const
      {
        return false;
      }
 
    protected:
      Segmentation(const std::string& cellEncoding = "");
      Segmentation(const BitFieldCoder* decoder);
 
      template<typename TYPE> void registerParameter(const std::string& nam, const std::string& desc,
                                                     TYPE& param, const TYPE& defaultVal, UnitType unitTyp = SegmentationParameter::NoUnit,
                                                     bool isOpt = false) {
        _parameters[nam] = new TypedSegmentationParameter<TYPE>(nam,desc,param,defaultVal,unitTyp,isOpt);
      }
      void registerIdentifier(const std::string& nam, const std::string& desc, std::string& ident,
                              const std::string& defaultVal);
 
      static double binToPosition(FieldID bin, double cellSize, double offset = 0.);
      static int positionToBin(double position, double cellSize, double offset = 0.);
 
      static double binToPosition(FieldID bin, std::vector<double> const& cellBoundaries, double offset = 0.);
      static int positionToBin(double position, std::vector<double> const& cellBoundaries, double offset = 0.);
 
      std::string _name;
      std::string _type;
      std::string _description;
      std::map<std::string, Parameter> _parameters;   
      std::map<std::string, StringParameter> _indexIdentifiers;   
      const BitFieldCoder* _decoder = 0;
      bool _ownsDecoder = false;
    private:
      Segmentation(const Segmentation&);
    };
 
  } /* namespace DDSegmentation */
} /* namespace dd4hep */
#endif // DDSEGMENTATION_SEGMENTATION_H