ActsExamples/EventData/Graph.hpp

0001 // This file is part of the ACTS project.
0002 //
0003 // Copyright (C) 2016 CERN for the benefit of the ACTS project
0004 //
0005 // This Source Code Form is subject to the terms of the Mozilla Public
0006 // License, v. 2.0. If a copy of the MPL was not distributed with this
0007 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
0008
0009 #pragma once
0010
0011 #include <cstdint>
0012 #include <vector>
0013
0014 namespace ActsExamples {
0015
0016 /// Lightweight graph representation for GNN debugging
0017 ///
0018 struct Graph {
0019   /// The edges-vector contains flattened edge-pairs. Usually, the indices
0020   /// refer to a spacepoint collection.
0021   ///
0022   /// Structure: [ source0, dest0, source1, dest1, ..., sourceN, destN ]
0023   std::vector<std::int64_t> edges;
0024
0025   /// The weight-vector should have half the size of the edges-vector (or
0026   /// be empty if missing).
0027   ///
0028   /// Structure: [ weight0, weight1, ..., weightN ]
0029   std::vector<float> weights;
0030 };
0031
0032 }  // namespace ActsExamples