source: JEM-EUSO/esaf_cc_at_lal/packages/simulation/detector/optics/include/DetectorGeometry.hh @ 114

// $Id: DetectorGeometry.hh 2819 2009-03-13 11:48:16Z naumov $
// Author: Alessandro Thea   2005/03/10

/*****************************************************************************
 * ESAF: Euso Simulation and Analysis Framework                              *
 *                                                                           *
 *  Id: DetectorGeometry                                                     *
 *  Package: Optics                                                          *
 *  Coordinator: Alessandro.Thea                                             *
 *                                                                           *
 *****************************************************************************/

#ifndef __DETECTORGEOMETRY_HH__
#define __DETECTORGEOMETRY_HH__

#include "euso.hh"
#include "EsafRefFrame.hh"

class EarthVector;


////////////////////////////////////////////////////////////////////////////////
//                                                                            //
// DetectorGeometry                                                           //
//                                                                            //  
// Contains the fundamental information of the detector seen from "outside":  //
// Position, orientation in the space, external radius and field of view.     //
//                                                                            //  
////////////////////////////////////////////////////////////////////////////////

class DetectorGeometry : public EsafRefFrame {
public:
    DetectorGeometry();
    virtual ~DetectorGeometry();

    virtual Double_t GetRadius() const { return fRadius; }
    virtual Double_t GetOpticsRadius() const { return fOpticsRadius; }
    virtual Double_t GetFoV() const { return fFoV; }
    virtual Double_t GetTargetZ() const { return fTargetZ; }
    // Returns the solid angle made by Euso pupil as seen from a position in the atmosphere
    virtual Double_t SolidAngle(const EarthVector&) const;
    virtual Double_t MaxSolidAngle(const EarthVector&) const;
    
    virtual inline TVector3 OpticalAxis() const { return -fZaxis; }
    
    virtual inline void SetRadius( Double_t r ) { fRadius = r; }
    virtual inline void SetOpticsRadius(Double_t radius ) {fOpticsRadius = radius;}

    virtual inline void SetFoV( Double_t fov ) { fFoV = fov; }
    virtual inline void SetTargetZ( Double_t z ) { fTargetZ = z; }
    
    // tell if incoming direction is in FoV or not
    Bool_t IsInFoV(const TVector3&) const;
    
protected:

    Double_t fRadius;
    Double_t fOpticsRadius; // radius of the entrance pupil (not necessary equal to radius of the telescope)
    Double_t fFoV;
    Double_t fTargetZ;

    ClassDef(DetectorGeometry,0)
};

#endif  /* __DETECTORGEOMETRY_HH__ */