PlanarSurfaceMask.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2020 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#include "Acts/Definitions/Algebra.hpp"
#include "Acts/Geometry/GeometryContext.hpp"
#include "Acts/Surfaces/detail/IntersectionHelper2D.hpp"
#include "Acts/Utilities/Result.hpp"

#include <array>
#include <vector>

namespace Acts {
class Surface;
class AnnulusBounds;
class RadialBounds;
}  // namespace Acts

namespace ActsFatras {

struct PlanarSurfaceMask {
  using Segment2D = std::array<Acts::Vector2, 2>;

  Acts::Result<Segment2D> apply(const Acts::Surface& surface,
                                const Segment2D& segment) const;

  Acts::Result<Segment2D> polygonMask(
      const std::vector<Acts::Vector2>& vertices, const Segment2D& segment,
      bool firstInside) const;

  Acts::Result<Segment2D> radialMask(const Acts::RadialBounds& rBounds,
                                     const Segment2D& segment,
                                     const Segment2D& polarSegment,
                                     bool firstInside) const;

  Acts::Result<Segment2D> annulusMask(const Acts::AnnulusBounds& aBounds,
                                      const Segment2D& segment,
                                      bool firstInside) const;

  Acts::detail::IntersectionHelper2D intersector{};
};

}  // namespace ActsFatras