orangeinp/detail/SenseEvaluator.hh

0001 //------------------------------- -*- C++ -*- -------------------------------//
0002 // Copyright Celeritas contributors: see top-level COPYRIGHT file for details
0003 // SPDX-License-Identifier: (Apache-2.0 OR MIT)
0004 //---------------------------------------------------------------------------//
0005 //! \file orange/orangeinp/detail/SenseEvaluator.hh
0006 //---------------------------------------------------------------------------//
0007 #pragma once
0008
0009 #include "corecel/cont/VariantUtils.hh"
0010 #include "orange/OrangeTypes.hh"
0011 #include "orange/surf/VariantSurface.hh"
0012
0013 #include "../CsgTree.hh"
0014
0015 namespace celeritas
0016 {
0017 namespace orangeinp
0018 {
0019 namespace detail
0020 {
0021 //---------------------------------------------------------------------------//
0022 /*!
0023  * Evaluate whether a point is inside a CSG tree node.
0024  *
0025  * This is a construction-time helper that combines \c SenseCalculator with \c
0026  * LogicEvaluator. Its intended use is primarily for testing.
0027  */
0028 class SenseEvaluator
0029 {
0030   public:
0031     //!@{
0032     //! \name Type aliases
0033     using result_type = SignedSense;
0034     using VecSurface = std::vector<VariantSurface>;
0035     //!@}
0036
0037   public:
0038     // Construct with a CSG tree, surfaces, and a point
0039     inline SenseEvaluator(CsgTree const& tree,
0040                           VecSurface const& surfaces,
0041                           Real3 const& pos);
0042
0043     //! Visit from a node ID
0044     result_type operator()(NodeId const& n) const;
0045
0046     //!@{
0047     //! \name Visit a node directly
0048
0049     //! Point is always inside
0050     result_type operator()(True const&) const { return SignedSense::inside; }
0051     //! Point is always outside
0052     result_type operator()(False const&) const { return SignedSense::outside; }
0053     // Evaluate a surface
0054     result_type operator()(Surface const&) const;
0055     // Redirect an alias
0056     result_type operator()(Aliased const&) const;
0057     // Negate the daughter result
0058     result_type operator()(Negated const&) const;
0059     // Visit daughter nodes using short circuit logic
0060     result_type operator()(Joined const&) const;
0061     //!@}
0062
0063   private:
0064     ContainerVisitor<CsgTree const&, NodeId> visit_node_;
0065     VecSurface const& surfaces_;
0066     Real3 pos_;
0067 };
0068
0069 //---------------------------------------------------------------------------//
0070 // INLINE DEFINITIONS
0071 //---------------------------------------------------------------------------//
0072 /*!
0073  * Construct with a CSG tree and the position to test.
0074  */
0075 SenseEvaluator::SenseEvaluator(CsgTree const& tree,
0076                                VecSurface const& surfaces,
0077                                Real3 const& pos)
0078     : visit_node_{tree}, surfaces_{surfaces}, pos_{pos}
0079 {
0080 }
0081
0082 //---------------------------------------------------------------------------//
0083 }  // namespace detail
0084 }  // namespace orangeinp
0085 }  // namespace celeritas