Class StrawSurface

Inheritance Relationships

Base Type

Class Documentation

class Acts::StrawSurface : public Acts::LineSurface

Class for a StrawSurface in the TrackingGeometry to describe dirft tube and straw like detectors.

_build/doxygen-xml/LineSurface.png

Public Functions

StrawSurface() = delete
~StrawSurface() override = default
std::string name() const final

Return properly formatted class name for screen output */.

StrawSurface &operator=(const StrawSurface &other)

Assignment operator.

Parameters

  • other: is the source surface for copying

Polyhedron polyhedronRepresentation(const GeometryContext &gctx, size_t lseg) const final

Return a Polyhedron for the surfaces.

Note

if lseg is set to 1 then only the straw is created

Return

A list of vertices and a face/facett description of it

Parameters

  • gctx: The current geometry context object, e.g. alignment

  • lseg: Number of segments along curved lines, it represents the full 2*M_PI coverange, if lseg is set to 1 only the extrema are given

SurfaceType type() const final

Return the surface type.

Protected Functions

StrawSurface(const Transform3 &transform, double radius, double halez)

Constructor from Transform3 and bounds.

Parameters

  • transform: the transform that positions the straw in the global frame

  • radius: is the straw radius

  • halez: is the half length in z

StrawSurface(const Transform3 &transform, std::shared_ptr<const LineBounds> lbounds = nullptr)

Constructor from Transform3 and a shared bounds object.

Parameters

  • transform: the transform that positions the straw in the global frame

  • lbounds: are the bounds describing the straw dimensions, can be optionally nullptr

StrawSurface(const std::shared_ptr<const LineBounds> &lbounds, const DetectorElementBase &detelement)

Constructor from DetectorElementBase : Element proxy.

Parameters

  • lbounds: are the bounds describing the straw dimensions, they must not be nullptr

  • detelement: for which this surface is (at least) one representation

StrawSurface(const StrawSurface &other)

Copy constructor.

Parameters

  • slsf: is the source surface for copying

StrawSurface(const GeometryContext &gctx, const StrawSurface &other, const Transform3 &shift)

Copy constructor - with shift.

Parameters

  • gctx: The current geometry context object, e.g. alignment

  • other: is the source cone surface

  • shift: is the additional transfrom applied after copying