Helper methods for polyhedron vertices drawing and inside/outside checks. More...

Functions
std::vector< double >	phiSegments (double phiMin=-M_PI, double phiMax=M_PI, const std::vector< double > &phiRefs={}, double phiTolerance=1e-6)

template<typename vertex_t , typename transform_t >
void	createSegment (std::vector< vertex_t > &vertices, std::pair< double, double > rxy, double phi1, double phi2, unsigned int lseg, int addon=0, const vertex_t &offset=vertex_t::Zero(), const transform_t &transform=transform_t::Identity())

std::vector< Vector2D >	ellipsoidVertices (double innerRx, double innerRy, double outerRx, double outerRy, double avgPhi=0., double halfPhi=M_PI, unsigned int lseg=1)

std::vector< Vector2D >	circularVertices (double innerR, double outerR, double avgPhi=0., double halfPhi=M_PI, unsigned int lseg=1)

template<typename vertex_t , typename vertex_container_t >
bool	isInsidePolygon (const vertex_t &point, const vertex_container_t &vertices)

template<typename vertex_t >
bool	isInsideRectangle (const vertex_t &point, const vertex_t &lowerLeft, const vertex_t &upperRight)

bool	onHyperPlane (const std::vector< Vector3D > &vertices, double tolerance=s_onSurfaceTolerance)

Detailed Description

Helper methods for polyhedron vertices drawing and inside/outside checks.

Function Documentation

std::vector< Acts::Vector2D > Acts::detail::VerticesHelper::circularVertices	(	double	innerR,
		double	outerR,
		double	avgPhi = `0.`,
		double	halfPhi = `M_PI`,
		unsigned int	lseg = `1`
	)

Construct vertices on an disc/wheel-like bound object.

Parameters

innerR	The radius of the inner circle (sector)
outerR	The radius of the outer circle (sector)
avgPhi	The phi direction of the center if sector
halfPhi	The half phi sector if sector
lseg	The number of segments for for a full 2*pi segment

Returns: a vector of 2d-vectors

Definition at line 93 of file VerticesHelper.cpp.

View newest version in sPHENIX GitHub at line 93 of file VerticesHelper.cpp

References ellipsoidVertices().

Referenced by Acts::RadialBounds::vertices().

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template<typename vertex_t , typename transform_t >

void Acts::detail::VerticesHelper::createSegment	(	std::vector< vertex_t > &	vertices,
		std::pair< double, double >	rxy,
		double	phi1,
		double	phi2,
		unsigned int	lseg,
		int	addon = `0`,
		const vertex_t &	offset = `vertex_t::Zero()`,
		const transform_t &	transform = `transform_t::Identity()`
	)

Helper method to create a regular 2 or 3 D segment between two phi values

Template Parameters

vertex_t	Type of vertex to be applied
transform_t	Optional transform

Parameters

vertices	[in,out] The 3D vertices to be filled
rxy	The radius description if first +/= second: ellipse
phi1	The first phi value
phi2	The second phi value
lseg	The number of segments for full 2*PI
addon	The additional segments to be built
offset	The out of plane offset position of the bow
transform	The transform applied (optional)

Definition at line 48 of file VerticesHelper.hpp.

View newest version in sPHENIX GitHub at line 48 of file VerticesHelper.hpp

References kdfinder::abs(), cos(), M_PI, offset, phi, and Acts::Test::transform.

Referenced by Acts::StrawSurface::polyhedronRepresentation(), Acts::ConeSurface::polyhedronRepresentation(), and Acts::CylinderSurface::polyhedronRepresentation().

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std::vector< Acts::Vector2D > Acts::detail::VerticesHelper::ellipsoidVertices	(	double	innerRx,
		double	innerRy,
		double	outerRx,
		double	outerRy,
		double	avgPhi = `0.`,
		double	halfPhi = `M_PI`,
		unsigned int	lseg = `1`
	)

Construct vertices on an ellipse-like bound object.

Parameters

innerRx	The radius of the inner ellipse (in x), 0 if sector
innerRy	The radius of the inner ellipse (in y), 0 if sector
outerRx	The radius of the outer ellipse (in x)
outerRy	The radius of the outer ellipse (in y)
avgPhi	The phi direction of the center if sector
halfPhi	The half phi sector if sector
lseg	The number of segments for for a full 2*pi segment

Returns: a vector of 2d-vectors

Definition at line 47 of file VerticesHelper.cpp.

View newest version in sPHENIX GitHub at line 47 of file VerticesHelper.cpp

References kdfinder::abs(), Acts::closed, M_PI, phiSegments(), and Acts::s_onSurfaceTolerance.

Referenced by circularVertices(), and Acts::EllipseBounds::vertices().

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template<typename vertex_t , typename vertex_container_t >

bool Acts::detail::VerticesHelper::isInsidePolygon	(	const vertex_t &	point,
		const vertex_container_t &	vertices
	)

Check if the point is inside the polygon w/o any tolerances.

Template Parameters

vertex_container_t is an iterable container

Parameters

point	is the Vector2DType to check
vertices	Forward iterable container of convex polygon vertices. Calling `std::begin`/ `std::end` on the container must return an iterator where `*it` must be convertible to an `Vector2DType`.

Returns: bool for inside/outside

Definition at line 107 of file VerticesHelper.hpp.

View newest version in sPHENIX GitHub at line 107 of file VerticesHelper.hpp

References Acts::Test::delta.

Referenced by Acts::BoundaryCheck::distance(), Acts::Polyhedron::extent(), and Acts::BoundaryCheck::isInside().

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template<typename vertex_t >

bool Acts::detail::VerticesHelper::isInsideRectangle	(	const vertex_t &	point,
		const vertex_t &	lowerLeft,
		const vertex_t &	upperRight
	)

Check if the point is inside the rectangle.

Template Parameters

vertex_t is vector with [0],[1] access

Parameters

point	is the Vector2DType to check
vertices	Forward iterable container of convex polygon vertices. Calling `std::begin`/ `std::end` on the container must return an iterator where `*it` must be convertible to an `Vector2DType`.

Returns: bool for inside/outside

Definition at line 153 of file VerticesHelper.hpp.

View newest version in sPHENIX GitHub at line 153 of file VerticesHelper.hpp

Referenced by Acts::BoundaryCheck::distance(), and Acts::BoundaryCheck::isInside().

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bool Acts::detail::VerticesHelper::onHyperPlane	(	const std::vector< Vector3D > &	vertices,
		double	tolerance = `s_onSurfaceTolerance`
	)

This method checks if a cloud of points are on 2D hyper-plane in 3D space.

Parameters

vertices	The list of vertices to test
tolerance	The allowed out of plane tolerance

Returns: boolean to indicate if all points are inside/outside

Definition at line 100 of file VerticesHelper.cpp.

View newest version in sPHENIX GitHub at line 100 of file VerticesHelper.cpp

References ip(), and Acts::Test::tolerance.

Referenced by Acts::detail::Test::BOOST_AUTO_TEST_CASE(), and Acts::Polyhedron::extent().

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std::vector< double > Acts::detail::VerticesHelper::phiSegments	(	double	phiMin = `-M_PI`,
		double	phiMax = `M_PI`,
		const std::vector< double > &	phiRefs = `{}`,
		double	phiTolerance = `1e-6`
	)

A method that inserts the cartesian extrema points and segments a curved segment into sub segments

Parameters

phiMin	the minimum Phi of the bounds object
phiMax	the maximum Phi of the bounds object
phiRef	is a vector of reference phi values to be included as well
phiTolerance	is the tolerance for reference phi insertion

Returns: a vector

Definition at line 11 of file VerticesHelper.cpp.

View newest version in sPHENIX GitHub at line 11 of file VerticesHelper.cpp

References kdfinder::abs(), and M_PI.

Referenced by ellipsoidVertices(), Acts::StrawSurface::polyhedronRepresentation(), Acts::ConeSurface::polyhedronRepresentation(), Acts::CylinderSurface::polyhedronRepresentation(), and Acts::AnnulusBounds::vertices().

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Functions

Detailed Description

Function Documentation