Add ACTS clusterer

Author: njacazio

Detectors/Upgrades/ALICE3/TRK/reconstruction/include/TRKReconstruction/ClustererACTS.h

@@ -0,0 +1,43 @@
+// Copyright 2019-2026 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 ClustererACTS.h
+/// \brief Definition of the TRK cluster finder
+
+#ifndef ALICEO2_TRK_CLUSTERERACTS_H
+#define ALICEO2_TRK_CLUSTERERACTS_H
+
+#include "TRKReconstruction/Clusterer.h"
+
+namespace o2::trk
+{
+
+class GeometryTGeo;
+
+class ClustererACTS : public Clusterer
+{
+ public:
+  void process(gsl::span<const Digit> digits,
+               gsl::span<const DigROFRecord> digitROFs,
+               std::vector<o2::trk::Cluster>& clusters,
+               std::vector<unsigned char>& patterns,
+               std::vector<o2::trk::ROFRecord>& clusterROFs,
+               const ConstDigitTruth* digitLabels = nullptr,
+               ClusterTruth* clusterLabels = nullptr,
+               gsl::span<const DigMC2ROFRecord> digMC2ROFs = {},
+               std::vector<o2::trk::MC2ROFRecord>* clusterMC2ROFs = nullptr) override;
+
+ private:
+};
+
+} // namespace o2::trk
+
+#endif