Acts/Utilities/Ray.ipp

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 "Acts/Utilities/Ray.hpp"
0012
0013 template <typename value_t, std::size_t DIM>
0014 Acts::Ray<value_t, DIM>::Ray(const VertexType& origin, const VertexType& dir)
0015     : m_origin(origin), m_dir(dir.normalized()), m_idir(1 / m_dir.array()) {}
0016 template <typename value_t, std::size_t DIM>
0017 std::ostream& Acts::Ray<value_t, DIM>::toStream(std::ostream& os) const {
0018   os << "Ray(";
0019   for (std::size_t i = 0; i < DIM; i++) {
0020     if (i > 0) {
0021       os << ", ";
0022     }
0023     os << m_origin[i];
0024   }
0025   os << " -> ";
0026   for (std::size_t i = 0; i < DIM; i++) {
0027     if (i > 0) {
0028       os << ", ";
0029     }
0030     os << m_dir[i];
0031   }
0032   os << ")";
0033
0034   return os;
0035 }
0036
0037 template <typename value_t, std::size_t DIM>
0038 Acts::Ray<value_t, DIM> Acts::Ray<value_t, DIM>::transformed(
0039     const transform_type& trf) const {
0040   return Ray<value_t, DIM>(trf * m_origin, trf.rotation() * m_dir);
0041 }
0042
0043 template <typename value_t, std::size_t DIM>
0044 void Acts::Ray<value_t, DIM>::draw(IVisualization3D& helper,
0045                                    value_type far_distance) const
0046   requires(DIM == 3)
0047 {
0048   static_assert(DIM == 3, "OBJ is only supported in 3D");
0049
0050   helper.line(m_origin, (m_origin + m_dir * far_distance).eval());
0051 }
0052
0053 template <typename U, std::size_t V>
0054 std::ostream& operator<<(std::ostream& os, const Acts::Ray<U, V>& ray) {
0055   ray.dump(os);
0056   return os;
0057 }