RealLinearEquation.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
// RealLinearEquation.h, (c) ATLAS Detector software
 
#ifndef TRKEXUTILS_REALLINEAREQUATION_H
#define TRKEXUTILS_REALLINEAREQUATION_H
 
#include <cmath>
#include <utility>
 
namespace Trk {
 
struct RealLinearEquation
{
 
  double yOfX;      
  double segLength; 
 
  RealLinearEquation(double px, double py, double k, double xprime)
  {
    double deltax = xprime - px;
    yOfX = py + k * (deltax);
    double deltay = yOfX - py;
    segLength = sqrt(deltax * deltax + deltay * deltay);
  }
};
 
} // end of namespace
 
#endif