concept_acts_1_1_navigator_concept.html

template<typename Navigator, typename Options typename Navigator::Options, typename State typename Navigator::State>

concept Acts::NavigatorConcept =  requires {

  typename Navigator::Config;

  typename Navigator::Options;

  typename Navigator::State;


  requires requires(const Navigator& n, const Options& o, State& s,

                    const Surface& sf, const Vector3& position,

                    const Vector3& direction, Direction propagationDirection) {

    { n.makeState(o) } -> std::same_as<State>;

    { n.currentSurface(s) } -> std::same_as<const Surface*>;

    { n.currentVolume(s) } -> std::same_as<const TrackingVolume*>;

    { n.currentVolumeMaterial(s) } -> std::same_as<const IVolumeMaterial*>;

    { n.startSurface(s) } -> std::same_as<const Surface*>;

    { n.targetSurface(s) } -> std::same_as<const Surface*>;

    { n.endOfWorldReached(s) } -> std::same_as<bool>;

    { n.navigationBreak(s) } -> std::same_as<bool>;

    {

      n.initialize(s, position, direction, propagationDirection)

    } -> std::same_as<Result<void>>;

    { n.nextTarget(s, position, direction) } -> std::same_as<NavigationTarget>;

    { n.checkTargetValid(s, position, direction) } -> std::same_as<bool>;

    {

      n.handleSurfaceReached(s, position, direction, sf)

    } -> std::same_as<void>;

  };

}

Acts::Direction
The direction is always with respect to a given momentum, surface normal or other general axes.
Definition Direction.hpp:22

Acts::Navigator
Steers the propagation through the geometry by providing the next surface to be targeted.
Definition Navigator.hpp:79

Acts::Surface
Abstract Base Class for tracking surfaces.
Definition Surface.hpp:56

Acts::NavigatorConcept
Concept that is satisfied by navigators.
Definition NavigatorConcept.hpp:23

Acts::Vector3
Vector< 3 > Vector3
3-dimensional vector type for e.g. spatial coordinates and momenta
Definition Algebra.hpp:72

Acts::Navigator::Config
The navigator configuration.
Definition Navigator.hpp:108

Acts::Navigator::Options
The navigator options.
Definition Navigator.hpp:121

Acts::Navigator::State
Nested State struct.
Definition Navigator.hpp:138