SearchDirection.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2017 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Nils Braun                                               *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
#pragma once
 
#include <tracking/trackFindingCDC/numerics/EForwardBackward.h>
#include <framework/logging/Logger.h>
 
#include <string>
 
namespace Belle2 {
  constexpr inline bool arcLengthInRightDirection(double arcLength2D, TrackFindingCDC::EForwardBackward forwardBackward)
  {
    return forwardBackward * arcLength2D >= 0;
  }
 
  inline TrackFindingCDC::EForwardBackward fromString(const std::string& directionString)
  {
    if (directionString == "forward" or directionString == "above" or directionString == "after") {
      return TrackFindingCDC::EForwardBackward::c_Forward;
    } else if (directionString == "backward" or directionString == "below" or directionString == "before") {
      return TrackFindingCDC::EForwardBackward::c_Backward;
    } else if (directionString == "both" or directionString == "unknown") {
      return TrackFindingCDC::EForwardBackward::c_Unknown;
    } else if (directionString == "none" or directionString == "invalid") {
      return TrackFindingCDC::EForwardBackward::c_Invalid;
    } else {
      B2FATAL("Do not understand direction " << directionString << ". Valid names are " <<
              "forward/above/after, backward/below/before, both/unknown, none/invalid");
    }
  }
}