Struct Acts::SurfaceCollector

template<typename Selector = SurfaceSelector>
struct SurfaceCollector

A Surface Collector struct templated with a Selector type.

Whenever a surface is passed in the propagation that satisfies the selector, it is recorded for further usage in the flow.

Public Types

using result_type = this_result

Public Functions

template<typename propagator_state_t, typename stepper_t>
inline void operator()(propagator_state_t &state, const stepper_t &stepper, result_type &result, const Logger &logger) const

Collector action for the ActionList of the Propagator It checks if the propagator state has a current surface, in which case the action is performed:

  • it records the surface given the configuration

Template Parameters
  • propagator_state_t – is the type of Propagator state

  • stepper_t – Type of the stepper used for the propagation

  • state[inout] is the mutable stepper state object

  • stepper[in] The stepper in use

  • result[inout] is the mutable result object

  • logger – a logger instance

template<typename propagator_state_t, typename stepper_t>
inline void operator()(propagator_state_t&, const stepper_t&, const Logger&) const

Pure observer interface.

  • this does not apply to the surface collector

Public Members

Selector selector

The selector used for this surface.

struct this_result

Simple result struct to be returned It has all the SurfaceHit objects that are collected (and thus have been selected)

Public Members

std::vector<SurfaceHit> collected