Lookup helper which encapsulates a Grid. More...

#include <acts/blob/master/Core/include/Acts/Surfaces/SurfaceArray.hpp>

Inheritance diagram for Acts::SurfaceArray::SurfaceGridLookup< Axes >:

Collaboration diagram for Acts::SurfaceArray::SurfaceGridLookup< Axes >:

Public Types
using	point_t = std::conditional_t< DIM==1, std::array< double, 1 >, ActsVectorD< DIM >>
	Specifies the local coordinate type. This resolves to `ActsVector<DIM>` for DIM > 1, else `std::array<double, 1>`

using	Grid_t = detail::Grid< SurfaceVector, Axes...>

Public Member Functions
	SurfaceGridLookup (std::function< point_t(const Vector3D &)> globalToLocal, std::function< Vector3D(const point_t &)> localToGlobal, std::tuple< Axes...> axes)
	Default constructor.

void	fill (const GeometryContext &gctx, const SurfaceVector &surfaces) override
	Fill provided surfaces into the contained `Grid`.

size_t	completeBinning (const GeometryContext &gctx, const SurfaceVector &surfaces) override
	Attempts to fix sub-optimal binning by filling closest Surfaces into empty bins.

SurfaceVector &	lookup (const Vector3D &position) override
	Performs lookup at `pos` and returns bin content as reference.

const SurfaceVector &	lookup (const Vector3D &position) const override
	Performs lookup at `pos` and returns bin content as const reference.

SurfaceVector &	lookup (size_t bin) override
	Performs lookup at global bin and returns bin content as reference.

const SurfaceVector &	lookup (size_t bin) const override
	Performs lookup at global bin and returns bin content as const reference.

const SurfaceVector &	neighbors (const Vector3D &position) const override
	Performs a lookup at `pos`, but returns neighbors as well.

size_t	size () const override
	Returns the total size of the grid (including under/overflow bins)

Vector3D	getBinCenter (size_t bin) const override
	Gets the center position of bin `bin` in global coordinates.

std::vector< const IAxis * >	getAxes () const override
	Returns copies of the axes used in the grid as `AnyAxis`.

size_t	dimensions () const override
	Get the number of dimensions of the grid.

bool	isValidBin (size_t bin) const override
	Checks if global bin is valid.

Public Member Functions inherited from Acts::SurfaceArray::ISurfaceGridLookup
virtual	~ISurfaceGridLookup ()=0
	Pure virtual destructor.

Static Public Attributes
static constexpr size_t	DIM = sizeof...(Axes)

Private Member Functions
void	populateNeighborCache ()

template<size_t D = DIM, std::enable_if_t< D!=1, int > = 0>
Vector3D	getBinCenterImpl (size_t bin) const

template<size_t D = DIM, std::enable_if_t< D==1, int > = 0>
Vector3D	getBinCenterImpl (size_t bin) const

Private Attributes
std::function< point_t(const Vector3D &)>	m_globalToLocal

std::function< Vector3D(const point_t &)>	m_localToGlobal

Grid_t	m_grid

std::vector< SurfaceVector >	m_neighborMap

Detailed Description

template<class... Axes>
struct Acts::SurfaceArray::SurfaceGridLookup< Axes >

Lookup helper which encapsulates a Grid.

Template Parameters

Axes	The axes used for the grid

Definition at line 114 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 114 of file SurfaceArray.hpp

Member Typedef Documentation

template<class... Axes>

using Acts::SurfaceArray::SurfaceGridLookup< Axes >::Grid_t = detail::Grid<SurfaceVector, Axes...>

Definition at line 123 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 123 of file SurfaceArray.hpp

template<class... Axes>

using Acts::SurfaceArray::SurfaceGridLookup< Axes >::point_t = std::conditional_t<DIM == 1, std::array<double, 1>, ActsVectorD<DIM>>

Specifies the local coordinate type. This resolves to ActsVector<DIM> for DIM > 1, else std::array<double, 1>

Definition at line 122 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 122 of file SurfaceArray.hpp

Constructor & Destructor Documentation

template<class... Axes>

Acts::SurfaceArray::SurfaceGridLookup< Axes >::SurfaceGridLookup	(	std::function< point_t(const Vector3D &)>	globalToLocal,
		std::function< Vector3D(const point_t &)>	localToGlobal,
		std::tuple< Axes...>	axes
	)

inline

Default constructor.

Parameters

globalToLocal	Callable that converts from global to local
localToGlobal	Callable that converts from local to global
grid	The grid data structure.

Note: Signature of localToGlobal and globalToLocal depends on DIM. If DIM > 1, local coords are ActsVectorD<DIM> else std::array<double, 1>.

Definition at line 133 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 133 of file SurfaceArray.hpp

References Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid, Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_neighborMap, and Acts::detail::Grid< T, Axes >::size().

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Member Function Documentation

template<class... Axes>

size_t Acts::SurfaceArray::SurfaceGridLookup< Axes >::completeBinning	(	const GeometryContext &	gctx,
		const SurfaceVector &	surfaces
	)

inlineoverridevirtual

Attempts to fix sub-optimal binning by filling closest Surfaces into empty bins.

Note: This does not always do what you want.

Parameters

gctx	The current geometry context object, e.g. alignment
surfaces	The surface pointers to fill

Returns: number of bins that were filled

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 169 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 169 of file SurfaceArray.hpp

References b, Acts::binR, Acts::SurfaceArray::SurfaceGridLookup< Axes >::getBinCenter(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::isValidBin(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::lookup(), max, norm, Acts::SurfaceArray::SurfaceGridLookup< Axes >::populateNeighborCache(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::size().

Referenced by Acts::Test::BOOST_FIXTURE_TEST_CASE().

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template<class... Axes>

size_t Acts::SurfaceArray::SurfaceGridLookup< Axes >::dimensions ( ) const

inlineoverridevirtual

Get the number of dimensions of the grid.

Returns: number of dimensions

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 266 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 266 of file SurfaceArray.hpp

References Acts::SurfaceArray::SurfaceGridLookup< Axes >::DIM.

template<class... Axes>

void Acts::SurfaceArray::SurfaceGridLookup< Axes >::fill	(	const GeometryContext &	gctx,
		const SurfaceVector &	surfaces
	)

inlineoverridevirtual

Fill provided surfaces into the contained Grid.

This is done by iterating, accessing the binningPosition, lookup and append. Also populates the neighbor map by combining the filled bins of all bins around a given one.

Parameters

gctx	The current geometry context object, e.g. alignment
surfaces	Input surface pointers

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 152 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 152 of file SurfaceArray.hpp

References Acts::binR, Acts::SurfaceArray::SurfaceGridLookup< Axes >::lookup(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::populateNeighborCache(), and pos().

Referenced by Acts::Test::BOOST_FIXTURE_TEST_CASE().

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template<class... Axes>

std::vector<const IAxis*> Acts::SurfaceArray::SurfaceGridLookup< Axes >::getAxes ( ) const

inlineoverridevirtual

Returns copies of the axes used in the grid as AnyAxis.

Returns: The axes

Note: This returns copies. Use for introspection and querying.

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 259 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 259 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::axes(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid.

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template<class... Axes>

Vector3D Acts::SurfaceArray::SurfaceGridLookup< Axes >::getBinCenter ( size_t bin ) const

inlineoverridevirtual

Gets the center position of bin bin in global coordinates.

Parameters

bin	the global bin index

Returns: The bin center

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 252 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 252 of file SurfaceArray.hpp

References Acts::SurfaceArray::SurfaceGridLookup< Axes >::getBinCenterImpl().

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::completeBinning().

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template<class... Axes>

template<size_t D = DIM, std::enable_if_t< D!=1, int > = 0>

Vector3D Acts::SurfaceArray::SurfaceGridLookup< Axes >::getBinCenterImpl ( size_t bin ) const

inlineprivate

Internal method. This is here, because apparently Eigen doesn't like Vector1D. So SurfaceGridLookup internally uses std::array<double, 1> instead of Vector1D (see the point_t typedef). This needs to be switched here, so as not to attempt an initialization of Vector1D that Eigen will complain about. The SFINAE is hidden in this private method so the public interface stays the same, since we don't care what happens here on the callers end This is the version for DIM>1

Definition at line 317 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 317 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::binCenter(), Acts::detail::Grid< T, Axes >::localBinsFromGlobalBin(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid, and Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_localToGlobal.

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::getBinCenter().

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template<class... Axes>

template<size_t D = DIM, std::enable_if_t< D==1, int > = 0>

Vector3D Acts::SurfaceArray::SurfaceGridLookup< Axes >::getBinCenterImpl ( size_t bin ) const

inlineprivate

Internal method, see above. This is the version for DIM==1

Definition at line 325 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 325 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::binCenter(), Acts::detail::Grid< T, Axes >::localBinsFromGlobalBin(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid, Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_localToGlobal, and pos().

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template<class... Axes>

bool Acts::SurfaceArray::SurfaceGridLookup< Axes >::isValidBin ( size_t bin ) const

inlineoverridevirtual

Checks if global bin is valid.

Parameters

bin	the global bin index

Returns: bool if the bin is valid

Note: Valid means that the index points to a bin which is not a under or overflow bin or out of range in any axis.

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 273 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 273 of file SurfaceArray.hpp

References incremental_prev_tag::idx, Acts::detail::Grid< T, Axes >::localBinsFromGlobalBin(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid, and Acts::detail::Grid< T, Axes >::numLocalBins().

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::completeBinning(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::populateNeighborCache().

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template<class... Axes>

SurfaceVector& Acts::SurfaceArray::SurfaceGridLookup< Axes >::lookup ( const Vector3D & position )

inlineoverridevirtual

Performs lookup at pos and returns bin content as reference.

Parameters

position Lookup position

Returns: SurfaceVector at given bin

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 209 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 209 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::atPosition(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_globalToLocal, and Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid.

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::completeBinning(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::fill().

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template<class... Axes>

const SurfaceVector& Acts::SurfaceArray::SurfaceGridLookup< Axes >::lookup ( const Vector3D & position ) const

inlineoverridevirtual

Performs lookup at pos and returns bin content as const reference.

Parameters

position Lookup position

Returns: SurfaceVector at given bin

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 217 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 217 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::atPosition(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_globalToLocal, and Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid.

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template<class... Axes>

SurfaceVector& Acts::SurfaceArray::SurfaceGridLookup< Axes >::lookup ( size_t bin )

inlineoverridevirtual

Performs lookup at global bin and returns bin content as reference.

Parameters

bin	Global lookup bin

Returns: SurfaceVector at given bin

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 225 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 225 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::at(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid.

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template<class... Axes>

const SurfaceVector& Acts::SurfaceArray::SurfaceGridLookup< Axes >::lookup ( size_t bin ) const

inlineoverridevirtual

Performs lookup at global bin and returns bin content as const reference.

Parameters

bin	Global lookup bin

Returns: SurfaceVector at given bin

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 231 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 231 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::at(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid.

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template<class... Axes>

const SurfaceVector& Acts::SurfaceArray::SurfaceGridLookup< Axes >::neighbors ( const Vector3D & position ) const

inlineoverridevirtual

Performs a lookup at pos, but returns neighbors as well.

Parameters

position Lookup position

Returns: SurfaceVector at given bin. Copy of all bins selected

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 239 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 239 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::globalBinFromPosition(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_globalToLocal, Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid, and Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_neighborMap.

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::populateNeighborCache().

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template<class... Axes>

void Acts::SurfaceArray::SurfaceGridLookup< Axes >::populateNeighborCache ( )

inlineprivate

Definition at line 287 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 287 of file SurfaceArray.hpp

References Acts::detail::Grid< T, Axes >::at(), field_utils::copy(), incremental_prev_tag::idx, Acts::SurfaceArray::SurfaceGridLookup< Axes >::isValidBin(), Acts::detail::Grid< T, Axes >::localBinsFromGlobalBin(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid, Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_neighborMap, Acts::detail::Grid< T, Axes >::neighborHoodIndices(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::neighbors(), Acts::detail::Grid< T, Axes >::size(), and Acts::UnitConstants::u.

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::completeBinning(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::fill().

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template<class... Axes>

size_t Acts::SurfaceArray::SurfaceGridLookup< Axes >::size ( ) const

inlineoverridevirtual

Returns the total size of the grid (including under/overflow bins)

Returns: Size of the grid data structure

Implements Acts::SurfaceArray::ISurfaceGridLookup.

Definition at line 247 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 247 of file SurfaceArray.hpp

References Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid, and Acts::detail::Grid< T, Axes >::size().

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::completeBinning().

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Member Data Documentation

template<class... Axes>

constexpr size_t Acts::SurfaceArray::SurfaceGridLookup< Axes >::DIM = sizeof...(Axes)

static

Definition at line 115 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 115 of file SurfaceArray.hpp

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::dimensions().

template<class... Axes>

std::function<point_t(const Vector3D&)> Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_globalToLocal

private

Definition at line 330 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 330 of file SurfaceArray.hpp

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::lookup(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::neighbors().

template<class... Axes>

Grid_t Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_grid

private

Definition at line 332 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 332 of file SurfaceArray.hpp

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::getAxes(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::getBinCenterImpl(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::isValidBin(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::lookup(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::neighbors(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::populateNeighborCache(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::size(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::SurfaceGridLookup().

template<class... Axes>

std::function<Vector3D(const point_t&)> Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_localToGlobal

private

Definition at line 331 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 331 of file SurfaceArray.hpp

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::getBinCenterImpl().

template<class... Axes>

std::vector<SurfaceVector> Acts::SurfaceArray::SurfaceGridLookup< Axes >::m_neighborMap

private

Definition at line 333 of file SurfaceArray.hpp.

View newest version in sPHENIX GitHub at line 333 of file SurfaceArray.hpp

Referenced by Acts::SurfaceArray::SurfaceGridLookup< Axes >::neighbors(), Acts::SurfaceArray::SurfaceGridLookup< Axes >::populateNeighborCache(), and Acts::SurfaceArray::SurfaceGridLookup< Axes >::SurfaceGridLookup().

The documentation for this struct was generated from the following file:

acts/blob/master/Core/include/Acts/Surfaces/SurfaceArray.hpp

Public Types

Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Detailed Description

template<class... Axes> struct Acts::SurfaceArray::SurfaceGridLookup< Axes >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class... Axes>
struct Acts::SurfaceArray::SurfaceGridLookup< Axes >