Acts::Polyhedron Class Reference

#include <acts/blob/sPHENIX/Core/include/Acts/Geometry/Polyhedron.hpp>

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Public Types
using	FaceType = std::vector< size_t >

Public Member Functions
	Polyhedron ()=default
	Default constructor.
	Polyhedron (const std::vector< Vector3D > &verticesIn, const std::vector< FaceType > &facesIn, const std::vector< FaceType > &triangularMeshIn, bool isExact=true)
void	merge (const Polyhedron &other)
void	move (const Transform3D &transform)
Extent	extent (const Transform3D &transform=Transform3D::Identity()) const

Public Attributes
std::vector< Vector3D >	vertices
	List of 3D vertices as vectors.
std::vector< FaceType >	faces
std::vector< FaceType >	triangularMesh
bool	exact = true
	Is this an exact representation (approximating curved spaces)

Detailed Description

Struct which contains a cartesian approximation for any surface type. It contains a list of cartesian vertices in the global frame, and additionally a list of lists of indices which indicate which vertices form a face. Each entry in faces is a face, which is in turn a list of vertices that need to be connected to form a face. This allows the objString method to produce a ready-to-go obj output.

Definition at line 31 of file Polyhedron.hpp.

View newest version in sPHENIX GitHub at line 31 of file Polyhedron.hpp

Member Typedef Documentation

using Acts::Polyhedron::FaceType = std::vector<size_t>

Definition at line 32 of file Polyhedron.hpp.

View newest version in sPHENIX GitHub at line 32 of file Polyhedron.hpp

Constructor & Destructor Documentation

Acts::Polyhedron::Polyhedron ( )

default

Default constructor.

Acts::Polyhedron::Polyhedron ( const std::vector< Vector3D > &  verticesIn, const std::vector< FaceType > &  facesIn, const std::vector< FaceType > &  triangularMeshIn, bool  isExact = true  )

inline

Default constructor from a vector of vertices and a vector of faces

Parameters

verticesIn	The 3D global vertices that make up the object
facesIn	List of lists of indices for faces.
triangularMeshIn	List of lists of indices for a triangular mesh
isExact	A dedicated flag if this is exact or not

Note

This creates copies of the input vectors

Definition at line 43 of file Polyhedron.hpp.

View newest version in sPHENIX GitHub at line 43 of file Polyhedron.hpp

Member Function Documentation

Acts::Extent Acts::Polyhedron::extent

(

const Transform3D &

transform = Transform3D::Identity()

)

const

Maximum extent of the polyhedron in space

Parameters

transform

An (optional) transform to apply to the vertices for estimation the extent with respect to a given coordinate frame

Returns

ranges that describe the space taken by this surface

Definition at line 39 of file Polyhedron.cpp.

View newest version in sPHENIX GitHub at line 39 of file Polyhedron.cpp

References Acts::binPhi, Acts::binR, Acts::binZ, Acts::Extent::check(), Acts::UnitConstants::e, Acts::detail::VerticesHelper::isInsidePolygon(), Acts::IntegrationTest::L, M_PI, max, Acts::Extent::medium(), min, Acts::detail::VerticesHelper::onHyperPlane(), Acts::Test::origin(), Acts::Extent::ranges, Acts::Test::transform, and v.

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), and Acts::SurfaceBinningMatcher::operator()().

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void Acts::Polyhedron::merge

(

const Polyhedron &

other

)

Merge another Polyhedron into this one

Parameters

other

is the source representation

Add the new faces with offsets

Definition at line 16 of file Polyhedron.cpp.

View newest version in sPHENIX GitHub at line 16 of file Polyhedron.cpp

References faces, Acts::Test::transform, triangularMesh, vertices, and x.

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

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void Acts::Polyhedron::move

(

const Transform3D &

transform

)

Move the polyhedron with a Transfrom3D

Parameters

transform

The additional transform applied

Definition at line 34 of file Polyhedron.cpp.

View newest version in sPHENIX GitHub at line 34 of file Polyhedron.cpp

References v.

Referenced by Acts::GeometryView3D::drawSurface(), pygaga(), pyptfs(), pyrget(), pyrset(), rluget(), and rluset().

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Member Data Documentation

bool Acts::Polyhedron::exact = true

Is this an exact representation (approximating curved spaces)

Definition at line 65 of file Polyhedron.hpp.

View newest version in sPHENIX GitHub at line 65 of file Polyhedron.hpp

std::vector<FaceType> Acts::Polyhedron::faces

List of faces connecting the vertices. each face is a list of vertices v corresponding to the vertex vector above

Definition at line 57 of file Polyhedron.hpp.

View newest version in sPHENIX GitHub at line 57 of file Polyhedron.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::GeometryView3D::drawPolyhedron(), and merge().

std::vector<FaceType> Acts::Polyhedron::triangularMesh

List of faces connecting the vertices. each face is a list of vertices v

• in this case restricted to a triangular representation

Definition at line 62 of file Polyhedron.hpp.

View newest version in sPHENIX GitHub at line 62 of file Polyhedron.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::GeometryView3D::drawPolyhedron(), and merge().

std::vector<Vector3D> Acts::Polyhedron::vertices

List of 3D vertices as vectors.

Definition at line 52 of file Polyhedron.hpp.

View newest version in sPHENIX GitHub at line 52 of file Polyhedron.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::GeometryView3D::drawPolyhedron(), merge(), and Acts::PlaneSurface::polyhedronRepresentation().

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The documentation for this class was generated from the following files:

• acts/blob/sPHENIX/Core/include/Acts/Geometry/Polyhedron.hpp
• acts/blob/sPHENIX/Core/src/Geometry/Polyhedron.cpp