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[EMCAL-689] EMCAL/Geometry: Add function to load alignment matrix fro… #14237

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Merged
jokonig merged 1 commit into from
May 19, 2025
Merged

[EMCAL-689] EMCAL/Geometry: Add function to load alignment matrix fro… #14237

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9 changes: 8 additions & 1 deletion Detectors/EMCAL/base/include/EMCALBase/Geometry.h
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,9 @@
#include <TNamed.h>
#include <TParticle.h>
#include <TVector3.h>
#include <TObjArray.h>

#include "CCDB/BasicCCDBManager.h"
#include "DataFormatsEMCAL/Constants.h"
#include "EMCALBase/GeometryBase.h"
#include "MathUtils/Cartesian.h"
Expand Down Expand Up @@ -57,7 +59,7 @@ class Geometry
/// | EMCAL_COMPLETE12SMV1_DCAL | Full EMCAL, 10 DCAL Supermodules (not used in practice) |
/// | EMCAL_COMPLETE12SMV1_DCAL_8SM | Full EMCAL, 8 DCAL Supermodules (run2) |
/// | EMCAL_COMPLETE12SMV1_DCAL_DEV | Full EMCAL, DCAL development geometry (not used) |
Geometry(const std::string_view name, const std::string_view mcname = "", const std::string_view mctitle = "");
explicit Geometry(const std::string_view name, const std::string_view mcname = "", const std::string_view mctitle = "");

/// \brief Copy constructor.
Geometry(const Geometry& geom);
Expand Down Expand Up @@ -564,6 +566,11 @@ class Geometry
///
void SetMisalMatrix(const TGeoHMatrix* m, Int_t smod) const;

///
/// Method to set shift-rotational matrixes from CCDB
///
void SetMisalMatrixFromCcdb(const char* path = "Users/m/mhemmer/EMCAL/Config/GeometryAligned", int timestamp = 10000) const;

///
/// Transform clusters cell position into global with alternative method, taking into account the depth calculation.
/// Input are:
Expand Down
31 changes: 28 additions & 3 deletions Detectors/EMCAL/base/src/Geometry.cxx
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Expand Up @@ -8,16 +8,21 @@
// 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.
#include "EMCALBase/Geometry.h"

#include <fairlogger/Logger.h>

#include <iomanip>
#include <string>
#include <algorithm>
#include <cstdio>
#include <tuple>

#include <TGeoBBox.h>
#include <TGeoManager.h>
#include <TGeoMatrix.h>
#include <TList.h>

#include <fairlogger/Logger.h>

#include "EMCALBase/Geometry.h"
#include "EMCALBase/ShishKebabTrd1Module.h"

#include <boost/algorithm/string/predicate.hpp>
Expand Down Expand Up @@ -1557,6 +1562,7 @@ const TGeoHMatrix* Geometry::GetMatrixForSuperModule(Int_t smod) const

if (!SMODULEMATRIX[smod]) {
if (gGeoManager) {
LOG(info) << "Loading EMCAL misalignment matrix for SM " << smod << " from GeoManager.";
SetMisalMatrix(GetMatrixForSuperModuleFromGeoManager(smod), smod);
} else {
LOG(fatal) << "Cannot find EMCAL misalignment matrices! Recover them either: \n"
Expand Down Expand Up @@ -1762,6 +1768,25 @@ void Geometry::SetMisalMatrix(const TGeoHMatrix* m, Int_t smod) const
}
}

void Geometry::SetMisalMatrixFromCcdb(const char* path, int timestamp) const
{
LOG(info) << "Using CCDB to obtain EMCal alignment.";
o2::ccdb::CcdbApi api;
map<string, string> metadata; // can be empty
api.init("http://alice-ccdb.cern.ch");
TObjArray* matrices = api.retrieveFromTFileAny<TObjArray>(path, metadata, timestamp);

for (int iSM = 0; iSM < mNumberOfSuperModules; ++iSM) {
TGeoHMatrix* mat = reinterpret_cast<TGeoHMatrix*>(matrices->At(iSM));
if (mat) {

SetMisalMatrix(mat, iSM);
} else {
LOG(info) << "Could not obtain Alignment Matrix for SM " << iSM;
}
}
}

Bool_t Geometry::IsDCALSM(Int_t iSupMod) const
{
if (mEMCSMSystem[iSupMod] == DCAL_STANDARD || mEMCSMSystem[iSupMod] == DCAL_EXT) {
Expand Down