Acts::IndexGrid< grid_t > Class Template Reference

This is an index grid based navigation state updator, it uses an extractor type and a filler type to handle the navigation state. More...

#include <Acts/Geometry/IndexGrid.hpp>

Inheritance diagram for Acts::IndexGrid< grid_t >:

Collaboration diagram for Acts::IndexGrid< grid_t >:

Public Types
using	Delegate_t
	Abrivation of the delegate to transform the external point into the grid's coordinate system.
using	grid_type = grid_t
	Broadcast the grid type.

Public Member Functions
	IndexGrid (grid_type &&igrid, const std::array< AxisDirection, grid_type::DIM > &icasts, const Transform3 &itr=Transform3::Identity())
	Constructor for a grid based surface attacher.
	IndexGrid (grid_type &&igrid, const std::array< AxisDirection, grid_type::DIM > &icasts, Delegate_t trfFunc)
	Constructor for a grid based surface attacher with alignable delegate.

Public Attributes
std::array< AxisDirection, grid_type::DIM >	casts {}
	These are the cast parameters - copied from constructor.
grid_type	grid
	The grid where the indices are stored.
Delegate_t	toLocalFrame = nullptr
	Delegate to transform the external points into the grid's coordinate system.

Detailed Description

template<typename grid_t>
class Acts::IndexGrid< grid_t >

This is an index grid based navigation state updator, it uses an extractor type and a filler type to handle the navigation state.

Note

a transform is applied p3l = transform * p3 in order to allow shifted, transformed grids

It can be used for volumes, surfaces at convenience

Template Parameters

navigation_type	distinguishes between internal and external navigation
grid_t	is the type of the grid
extractor_type	is the helper to extract the object
filler_type	is the helper to fill the object into the nState

Member Typedef Documentation

Delegate_t

template<typename grid_t>

using Acts::IndexGrid< grid_t >::Delegate_t

Initial value:

 
      std::function<const Transform3&(const GeometryContext& gctx)>

Abrivation of the delegate to transform the external point into the grid's coordinate system.

Constructor & Destructor Documentation

IndexGrid() [1/2]

template<typename grid_t>

Acts::IndexGrid< grid_t >::IndexGrid	(	grid_type &&	igrid,
		const std::array< AxisDirection, grid_type::DIM > &	icasts,
		const Transform3 &	itr = Transform3::Identity() )

Constructor for a grid based surface attacher.

Parameters

igrid	the grid that is moved into this attacher
icasts	is the cast values array
itr	a transform applied to the global position

IndexGrid() [2/2]

template<typename grid_t>

Acts::IndexGrid< grid_t >::IndexGrid	(	grid_type &&	igrid,
		const std::array< AxisDirection, grid_type::DIM > &	icasts,
		Delegate_t	trfFunc )

Constructor for a grid based surface attacher with alignable delegate.

Parameters

igrid	the grid that is moved into this attacher
icasts	is the cast values array
trfFunc	a transform applied to the global position