/data/refman/pasoursint/CMSSW_4_2_9_HLT1_bphpatch4/src/Geometry/CommonTopologies/interface/TrapezoidalStripTopology.h

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#ifndef Geometry_CommonTopologies_TrapezoidalStripTopology_H
#define Geometry_CommonTopologies_TrapezoidalStripTopology_H

#include "Geometry/CommonTopologies/interface/StripTopology.h"


class TrapezoidalStripTopology : public StripTopology {
public:

  TrapezoidalStripTopology(int nstrip, float pitch, float detheight,float r0);

  TrapezoidalStripTopology(int nstrip, float pitch, float detheight,float r0, int yAx);

  virtual LocalPoint localPosition(float strip) const;

  virtual LocalPoint localPosition(const MeasurementPoint&) const;
  
  virtual LocalError 
  localError(float strip, float stripErr2) const;
  
  virtual LocalError 
  localError(const MeasurementPoint&, const MeasurementError&) const;
  
  virtual float strip(const LocalPoint&) const;

  virtual MeasurementPoint measurementPosition(const LocalPoint&) const;
    
  virtual MeasurementError 
  measurementError(const LocalPoint&, const LocalError&) const;

  virtual int channel(const LocalPoint&) const;

  virtual float pitch() const; 

  virtual float localPitch(const LocalPoint&) const;
  
  virtual float stripAngle(float strip) const;

  virtual int nstrips() const; 

  virtual float stripLength() const {return theDetHeight;}
  virtual float localStripLength(const LocalPoint& aLP) const;
  
  float radius() const { return theDistToBeam;}

protected:

  virtual float shiftOffset( float pitch_fraction);

private:
  int   theNumberOfStrips;
  float thePitch;    // pitch at the middle of the det. plane
  float theOffset;  
  float theDistToBeam; 
  float theDetHeight; 
  int   theYAxOr;
};


#endif