Acts/EventData/Seed.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 <array>
0012 #include <limits>
0013
0014 namespace Acts {
0015
0016 template <typename external_spacepoint_t, std::size_t N = 3ul>
0017 class Seed {
0018   static_assert(N >= 3ul);
0019
0020  public:
0021   using value_type = external_spacepoint_t;
0022   static constexpr std::size_t DIM = N;
0023
0024   template <typename... args_t>
0025     requires(sizeof...(args_t) == N) &&
0026             (std::same_as<external_spacepoint_t, args_t> && ...)
0027   explicit Seed(const args_t&... points);
0028
0029   void setVertexZ(float vertex);
0030   void setQuality(float seedQuality);
0031
0032   const std::array<const external_spacepoint_t*, N>& sp() const;
0033   float z() const;
0034   float seedQuality() const;
0035
0036  private:
0037   std::array<const external_spacepoint_t*, N> m_spacepoints{};
0038   float m_vertexZ{0.f};
0039   float m_seedQuality{-std::numeric_limits<float>::infinity()};
0040 };
0041
0042 }  // namespace Acts
0043
0044 #include "Acts/EventData/Seed.ipp"