ApproachDescriptor.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2016-2020 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/.

#pragma once

#include "Acts/Definitions/Algebra.hpp"
#include "Acts/Geometry/GeometryContext.hpp"
#include "Acts/Surfaces/Surface.hpp"
#include "Acts/Utilities/Intersection.hpp"

#include <vector>

namespace Acts {

class Surface;
class Layer;
class BoundaryCheck;

class ApproachDescriptor {
 public:
  ApproachDescriptor() = default;
  virtual ~ApproachDescriptor() = default;

  virtual void registerLayer(const Layer& lay) = 0;

  virtual SurfaceIntersection approachSurface(const GeometryContext& gctx,
                                              const Vector3& position,
                                              const Vector3& direction,
                                              const BoundaryCheck& bcheck,
                                              double pLimit, double oLimit,
                                              double tolerance) const = 0;

  virtual const std::vector<const Surface*>& containedSurfaces() const = 0;

  virtual std::vector<const Surface*>& containedSurfaces() = 0;
};

}  // namespace Acts