Acts::Polyhedron Class Reference

Struct which contains a cartesian approximation for any surface type. More...

#include <Acts/Geometry/Polyhedron.hpp>

Collaboration diagram for Acts::Polyhedron:

Public Types
using	FaceType = std::vector<std::size_t>
	Type alias for face definition as vertex indices.

Public Member Functions
	Polyhedron ()=default
	Default constructor.
	Polyhedron (const std::vector< Vector3 > &verticesIn, const std::vector< FaceType > &facesIn, const std::vector< FaceType > &triangularMeshIn, bool isExact=true)
	Default constructor from a vector of vertices and a vector of faces.
Extent	extent (const Transform3 &transform=Transform3::Identity()) const
	Maximum extent of the polyhedron in space.
void	merge (const Polyhedron &other)
	Merge another Polyhedron into this one.
void	move (const Transform3 &transform)
	Move the polyhedron with a Transfrom3D.
void	visualize (IVisualization3D &helper, const ViewConfig &viewConfig={}) const
	Visualize the polyhedron using a visualization helper.

Public Attributes
bool	exact = true
	Is this an exact representation (approximating curved spaces).
std::vector< FaceType >	faces
	List of faces connecting the vertices.
std::vector< FaceType >	triangularMesh
	List of faces connecting the vertices.
std::vector< Vector3 >	vertices
	List of 3D vertices as vectors.

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.

Member Typedef Documentation

FaceType

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

Type alias for face definition as vertex indices.

Constructor & Destructor Documentation

Polyhedron() [1/2]

Acts::Polyhedron::Polyhedron ( )

default

Default constructor.

Polyhedron() [2/2]

Acts::Polyhedron::Polyhedron	(	const std::vector< Vector3 > &	verticesIn,
		const std::vector< FaceType > &	facesIn,
		const std::vector< FaceType > &	triangularMeshIn,
		bool	isExact = true )

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

Member Function Documentation

extent()

Extent Acts::Polyhedron::extent

(

const Transform3 &

transform = Transform3::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

merge()

void Acts::Polyhedron::merge

(

const Polyhedron &

other

)

Merge another Polyhedron into this one.

Parameters

other

is the source representation

move()

void Acts::Polyhedron::move

(

const Transform3 &

transform

)

Move the polyhedron with a Transfrom3D.

Parameters

transform

The additional transform applied

visualize()

void Acts::Polyhedron::visualize	(	IVisualization3D &	helper,
		const ViewConfig &	viewConfig = {} ) const

Visualize the polyhedron using a visualization helper.

Parameters

helper	The visualization interface to use for rendering
viewConfig	Configuration options for visualization appearance

Member Data Documentation

exact

bool Acts::Polyhedron::exact = true

Is this an exact representation (approximating curved spaces).

faces

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

triangularMesh

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

vertices

std::vector<Vector3> Acts::Polyhedron::vertices

List of 3D vertices as vectors.