OffsetRadialStripTopology.h

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#ifndef ABS_OFFSET_RADIAL_STRIP_TOPOLOGY_H
#define ABS_OFFSET_RADIAL_STRIP_TOPOLOGY_H

#include "Geometry/CommonTopologies/interface/CSCRadialStripTopology.h"
#include <iosfwd>

class OffsetRadialStripTopology : public CSCRadialStripTopology {
public:
  OffsetRadialStripTopology(int numberOfStrips,
                            float stripPhiPitch,
                            float detectorHeight,
                            float radialDistance,
                            float stripOffset,
                            float yCentre);

  ~OffsetRadialStripTopology() override{};

  virtual float stripOffset(void) const { return theStripOffset; }

  LocalPoint localPosition(float strip) const override {
    // Pass through to base class since otherwise it is shadowed by the localPosition(const MP&).
    // Note that base class version is OK because it uses stripAngle() which is overridden in ORST!
    // Also note that xOfStrip from base class RST also works for ORST for the same reason.
    return CSCRadialStripTopology::localPosition(strip);
  }

  LocalPoint localPosition(const MeasurementPoint&) const override;

  MeasurementPoint measurementPosition(const LocalPoint&) const override;

  float strip(const LocalPoint&) const override;

  float stripAngle(float strip) const override;

  virtual int channel(int strip) const = 0;
  int channel(const LocalPoint& lp) const override = 0;

  friend std::ostream& operator<<(std::ostream&, const OffsetRadialStripTopology&);

private:
  LocalPoint toLocal(float xprime, float yprime) const;
  LocalPoint toPrime(const LocalPoint&) const;

  float theStripOffset;  // fraction of a strip offset from sym about y
  float theCosOff;       // cosine of angular offset
  float theSinOff;       // sine of angular offset
};

#endif