TkDetUtil.h

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#ifndef TkDetLayers_TkDetUtil_h
#define TkDetLayers_TkDetUtil_h

#include "Geometry/CommonDetUnit/interface/GeomDet.h"
#include "TrackingTools/DetLayers/interface/MeasurementEstimator.h"
#include "DataFormats/GeometryVector/interface/GlobalPoint.h"
#include "TrackingTools/DetLayers/interface/PhiLess.h"
#include "TrackingTools/DetLayers/interface/rangesIntersect.h"

#pragma GCC visibility push(hidden)

class GeomDet;
class Plane;
class TrajectoryStateOnSurface;

namespace tkDetUtil {

  inline
  bool overlapInPhi( float phi, const GeomDet & det, float phiWindow) {
    std::pair<float,float> phiRange(phi-phiWindow, phi+phiWindow);
    return rangesIntersect( phiRange, det.surface().phiSpan(), PhiLess());
  }


  inline
  bool overlapInPhi( GlobalPoint crossPoint,const GeomDet & det, float phiWindow) {
    return overlapInPhi(crossPoint.barePhi(), det,phiWindow);
  }


  
  float computeWindowSize( const GeomDet* det, 
                   const TrajectoryStateOnSurface& tsos, 
                   const MeasurementEstimator& est);


  float 
  calculatePhiWindow( const MeasurementEstimator::Local2DVector& maxDistance, 
              const TrajectoryStateOnSurface& ts, 
              const Plane& plane);


}

#pragma GCC visibility pop
#endif // TkDetLayers_TkDetUtil_h