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Ray.hpp
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1 // This file is part of the Acts project.
2 //
3 // Copyright (C) 2018-2019 CERN for the benefit of the Acts project
4 //
5 // This Source Code Form is subject to the terms of the Mozilla Public
6 // License, v. 2.0. If a copy of the MPL was not distributed with this
7 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 
9 #pragma once
10 
13 
14 namespace Acts {
15 
20 template <typename value_t, size_t DIM>
21 class Ray {
22  public:
28  using vertex_array_type = Eigen::Array<value_t, DIM, 1>;
30  using transform_type = Eigen::Transform<value_t, DIM, Eigen::Affine>;
31 
35  Ray(const VertexType& origin, const VertexType& dir);
36 
39  const VertexType& origin() const { return m_origin; }
40 
43  const VertexType& dir() const { return m_dir; }
44 
47  const vertex_array_type& idir() const { return m_idir; }
48 
53 
57  std::ostream& toStream(std::ostream& os) const;
58 
62  template <size_t D = DIM, std::enable_if_t<D == 3, int> = 0>
63  void draw(IVisualization& helper, value_type far_distance = 10) const;
64 
65  private:
69 };
70 
75 template <typename T, size_t D>
76 std::ostream& operator<<(std::ostream& os, const Ray<T, D>& ray) {
77  ray.dump(os);
78  return os;
79 }
80 
83 
84 } // namespace Acts
85 
86 #include "Acts/Utilities/Ray.ipp"