Acts::CylindricalSpacePointGrid Class Reference

A cylindrical space point grid used for seeding in a cylindrical detector geometry. More...

#include <Acts/Seeding/CylindricalSpacePointGrid.hpp>

Inheritance diagram for Acts::CylindricalSpacePointGrid:

Collaboration diagram for Acts::CylindricalSpacePointGrid:

Classes
struct	Config
	Configuration parameters for the cylindrical space point grid. More...

Public Types
using	GridBase
	Type alias for the CRTP base class.
using	PhiAxisType = GridBase::AxisTypeAt<0>
	Type alias for the phi axis (equidistant binning, closed boundaries).
using	RAxisType = GridBase::AxisTypeAt<2>
	Type alias for the r axis (variable binning, open boundaries).
using	ZAxisType = GridBase::AxisTypeAt<1>
	Type alias for the z axis (variable binning, open boundaries).

Public Member Functions
	CylindricalSpacePointGrid (const Config &config, std::unique_ptr< const Logger > logger=getDefaultLogger("CylindricalSpacePointGrid", Logging::Level::INFO))
	Construct a cylindrical space point grid with the given configuration and an optional logger.
std::optional< std::size_t >	binIndex (float phi, float z, float r) const
	Get the bin index for a space point given its azimuthal angle, radial distance, and z-coordinate.
Range1D< float >	computeRadiusRange (const SpacePointContainer &spacePoints) const
	Compute the range of radii in the grid.
std::optional< std::size_t >	insert (const ConstSpacePointProxy &sp)
	Insert a space point into the grid.
std::optional< std::size_t >	insert (SpacePointIndex index, float phi, float z, float r)
	Insert a space point into the grid.
void	sortBinsByR (const SpacePointContainer &spacePoints)
	Sort the bins in the grid by the space point radius, which is required by some algorithms that operate on the grid.

Detailed Description

A cylindrical space point grid used for seeding in a cylindrical detector geometry.

The grid is defined in cylindrical coordinates (phi, z, r) and allows for efficient access to space points based on their azimuthal angle, z-coordinate, and radial distance.

Member Typedef Documentation

GridBase

using Acts::CylindricalSpacePointGrid::GridBase

Initial value:

 
      detail::SpacePointGridBase<CylindricalSpacePointGrid, GridType>

Type alias for the CRTP base class.

Constructor & Destructor Documentation

CylindricalSpacePointGrid()

Acts::CylindricalSpacePointGrid::CylindricalSpacePointGrid ( const Config & config, std::unique_ptr< const Logger > logger = getDefaultLogger("CylindricalSpacePointGrid", Logging::Level::INFO) )

explicit

Construct a cylindrical space point grid with the given configuration and an optional logger.

Parameters

config	Configuration for the cylindrical grid
logger	Optional logger instance for debugging output

Member Function Documentation

binIndex()

std::optional< std::size_t > Acts::CylindricalSpacePointGrid::binIndex	(	float	phi,
		float	z,
		float	r ) const

Get the bin index for a space point given its azimuthal angle, radial distance, and z-coordinate.

Parameters

phi	The azimuthal angle of the space point in radians
z	The z-coordinate of the space point
r	The radial distance of the space point from the origin

Returns

The index of the bin in which the space point is located, or std::nullopt if the space point is outside the grid bounds.

computeRadiusRange()

Range1D< float > Acts::CylindricalSpacePointGrid::computeRadiusRange

(

const SpacePointContainer &

spacePoints

)

const

Compute the range of radii in the grid.

This requires the grid to be filled with space points and sorted by radius. The sorting can be done with the sortBinsByR method.

Parameters

spacePoints

The space point container to compute the radius range

Returns

The range of radii in the grid

insert() [1/2]

std::optional< std::size_t > Acts::CylindricalSpacePointGrid::insert

(

const ConstSpacePointProxy &

sp

)

Insert a space point into the grid.

Parameters

sp	The space point to insert

Returns

The index of the bin in which the space point was inserted, or std::nullopt if the space point is outside the grid bounds.

insert() [2/2]

std::optional< std::size_t > Acts::CylindricalSpacePointGrid::insert	(	SpacePointIndex	index,
		float	phi,
		float	z,
		float	r )

Insert a space point into the grid.

Parameters

index	The index of the space point to insert
phi	The azimuthal angle of the space point in radians
z	The z-coordinate of the space point
r	The radial distance of the space point from the origin

Returns

The index of the bin in which the space point was inserted, or std::nullopt if the space point is outside the grid bounds.

sortBinsByR()

void Acts::CylindricalSpacePointGrid::sortBinsByR

(

const SpacePointContainer &

spacePoints

)

Sort the bins in the grid by the space point radius, which is required by some algorithms that operate on the grid.

Parameters

spacePoints

The space point container to sort the bins by radius