// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.

// All rights not expressly granted are reserved.

//

// This software is distributed under the terms of the GNU General Public

// License v3 (GPL Version 3), copied verbatim in the file "COPYING".

//

// In applying this license CERN does not waive the privileges and immunities

// granted to it by virtue of its status as an Intergovernmental Organization

// or submit itself to any jurisdiction.

/// @file AlignableSensorHMPID.h

/// @author ruben.shahoyan@cern.ch, michael.lettrich@cern.ch

/// @since 2021-02-01

/// @brief HMPID sensor (chamber)

#include "Align/AlignableSensorHMPID.h"

#include "Align/utils.h"

#include "Framework/Logger.h"

//#include "AliTrackPointArray.h"

//#include "AliESDtrack.h"

#include "Align/AlignmentPoint.h"

#include "Align/AlignableDetector.h"

ClassImp(o2::align::AlignableSensorHMPID);

using namespace o2::align::utils;

using namespace TMath;

namespace o2

{

namespace align

{

//_________________________________________________________

AlignableSensorHMPID::AlignableSensorHMPID(const char* name, int vid, int iid, int isec)

: AlignableSensor(name, vid, iid)

{

// def c-tor

}

//_________________________________________________________

AlignableSensorHMPID::~AlignableSensorHMPID()

{

// d-tor

}

//____________________________________________

void AlignableSensorHMPID::prepareMatrixT2L()

{

// creat T2L matrix

double loc[3] = {0, 0, 0}, glo[3];

getMatrixL2GIdeal().LocalToMaster(loc, glo);

double alp = ATan2(glo[1], glo[0]);

double x = Sqrt(glo[0] * glo[0] + glo[1] * glo[1]);

TGeoHMatrix t2l;

t2l.SetDx(x);

t2l.RotateZ(alp * RadToDeg());

const TGeoHMatrix& l2gi = getMatrixL2GIdeal().Inverse();

t2l.MultiplyLeft(&l2gi);

/*

const TGeoHMatrix* t2l = AliGeomManager::GetTracking2LocalMatrix(getVolID());

if (!t2l) {

Print("long");

AliFatalF("Failed to find T2L matrix for VID:%d %s",getVolID(),getSymName());

}

*/

setMatrixT2L(t2l);

//

}

} // namespace align

} // namespace o2