Acts::GridAccessHelpers Namespace Reference

Functions
template<typename grid_type, typename local_indices>
grid_type::point_t	accessLocal (const Vector2 &lposition, const local_indices &laccess)
	Access local parameters for a propriate lookup position.
template<typename grid_type, typename cast_container>
grid_type::point_t	castPosition (const Vector3 &position, const cast_container &globalCasts)
	Cast into a lookup position.
template<typename cast_container, typename Array, std::size_t... idx>
void	fillCasts (const Vector3 &position, const cast_container &globalCasts, Array &ra, std::index_sequence< idx... >)
	Unroll the cast loop.
template<typename Array, typename local_indices, std::size_t... idx>
void	fillLocal (const Vector2 &lposition, const local_indices &laccess, Array &ra, std::index_sequence< idx... >)
	Unroll the local position loop.

Function Documentation

accessLocal()

template<typename grid_type, typename local_indices>

grid_type::point_t Acts::GridAccessHelpers::accessLocal	(	const Vector2 &	lposition,
		const local_indices &	laccess )

Access local parameters for a propriate lookup position.

This method allows to transform a local position into a grid position, it only works for 1-D and 2-D grids.

Parameters

lposition	is the position of the update call
laccess	the local accessors

Returns

an array suitable for the grid

castPosition()

template<typename grid_type, typename cast_container>

grid_type::point_t Acts::GridAccessHelpers::castPosition	(	const Vector3 &	position,
		const cast_container &	globalCasts )

Cast into a lookup position.

This method allows to transform a global position into a grid position that is specified by binning values. It casts the global position info into a format suitable for the grid.

Template Parameters

cast_container	is the container type of cast objects
Array	is the array type to be filled

Parameters

position	is the position of the update call
globalCasts	is the cast value vector from global to grid position

Returns

a grid point in an appropriate format

fillCasts()

template<typename cast_container, typename Array, std::size_t... idx>

void Acts::GridAccessHelpers::fillCasts	(	const Vector3 &	position,
		const cast_container &	globalCasts,
		Array &	ra,
		std::index_sequence< idx... >	)

Unroll the cast loop.

Template Parameters

cast_container	is the container type of cast objects
Array	is the array type to be filled

Parameters

position	is the position of the update call
globalCasts	is the cast value vector from global to grid position
ra	is the array to be filled

fillLocal()

template<typename Array, typename local_indices, std::size_t... idx>

void Acts::GridAccessHelpers::fillLocal	(	const Vector2 &	lposition,
		const local_indices &	laccess,
		Array &	ra,
		std::index_sequence< idx... >	)

Unroll the local position loop.

Parameters

lposition	is the local position
laccess	the local accessors
ra	is the array to be filled

Note

void function that fills the provided array