ActsPlugins::TGeoSurfaceConverter Struct Reference

Helper struct to convert TGeoShapes into Surface or Volume Bounds. More...

#include <ActsPlugins/Root/TGeoSurfaceConverter.hpp>

Static Public Member Functions
static std::tuple< std::shared_ptr< const Acts::CylinderBounds >, const Acts::Transform3, double >	cylinderComponents (const TGeoShape &tgShape, const Double_t *rotation, const Double_t *translation, const std::string &axes, double scalor=10.) noexcept(false)
	Convert a TGeoShape into cylinder surface components.
static std::tuple< std::shared_ptr< const Acts::DiscBounds >, const Acts::Transform3, double >	discComponents (const TGeoShape &tgShape, const Double_t *rotation, const Double_t *translation, const std::string &axes, double scalor=10.) noexcept(false)
	Convert a TGeoShape into disk surface components.
static std::tuple< std::shared_ptr< const Acts::PlanarBounds >, const Acts::Transform3, double >	planeComponents (const TGeoShape &tgShape, const Double_t *rotation, const Double_t *translation, const std::string &axes, double scalor=10.) noexcept(false)
	Convert a TGeoShape into plane surface components.
static double	toRadian (double deg)
	Translate TGeo degree [0, 360) to radian.
static std::tuple< std::shared_ptr< Acts::Surface >, double >	toSurface (const TGeoShape &tgShape, const TGeoMatrix &tgMatrix, const std::string &axes, double scalor=10.) noexcept(false)
	Convert a TGeoShape to a Surface.

Detailed Description

Helper struct to convert TGeoShapes into Surface or Volume Bounds.

Member Function Documentation

cylinderComponents()

std::tuple< std::shared_ptr< const Acts::CylinderBounds >, const Acts::Transform3, double > ActsPlugins::TGeoSurfaceConverter::cylinderComponents ( const TGeoShape & tgShape, const Double_t * rotation, const Double_t * translation, const std::string & axes, double scalor = 10. )

static

Convert a TGeoShape into cylinder surface components.

Parameters

tgShape	The TGeoShape
rotation	The rotation matrix as Double_t* from root
translation	The translation vector as Double_t* from root
axes	The axes definition
scalor	The unit scalor between TGeo and Acts

Returns

tuple of DiscBounds, Transform, thickness

discComponents()

std::tuple< std::shared_ptr< const Acts::DiscBounds >, const Acts::Transform3, double > ActsPlugins::TGeoSurfaceConverter::discComponents ( const TGeoShape & tgShape, const Double_t * rotation, const Double_t * translation, const std::string & axes, double scalor = 10. )

static

Convert a TGeoShape into disk surface components.

Parameters

tgShape	The TGeoShape
rotation	The rotation matrix as Double_t* from root
translation	The translation vector as Double_t* from root
axes	The axes definition
scalor	The unit scalor between TGeo and Acts

Returns

tuple of DiscBounds, Transform, thickness

planeComponents()

std::tuple< std::shared_ptr< const Acts::PlanarBounds >, const Acts::Transform3, double > ActsPlugins::TGeoSurfaceConverter::planeComponents ( const TGeoShape & tgShape, const Double_t * rotation, const Double_t * translation, const std::string & axes, double scalor = 10. )

static

Convert a TGeoShape into plane surface components.

Parameters

tgShape	The TGeoShape
rotation	The rotation matrix as Double_t* from root
translation	The translation as a Double_t*
axes	The axes definition
scalor	The unit scalor between TGeo and Acts

Returns

tuple of PlanarBounds, Transform, thickness

toRadian()

double ActsPlugins::TGeoSurfaceConverter::toRadian ( double deg )

static

Translate TGeo degree [0, 360) to radian.

• will correct to [-pi,pi)
• it will return any multiple of 360.0 to 2pi

  Parameters

  deg	The input in degree

  Returns

  angle in radians

toSurface()

std::tuple< std::shared_ptr< Acts::Surface >, double > ActsPlugins::TGeoSurfaceConverter::toSurface ( const TGeoShape & tgShape, const TGeoMatrix & tgMatrix, const std::string & axes, double scalor = 10. )

static

Convert a TGeoShape to a Surface.

Parameters

tgShape	The TGeoShape
tgMatrix	The matrix representing the transform
axes	The axes definition
scalor	The unit scalor between TGeo and Acts

Returns

shared pointer to a surface and the original thickness that has been condensed to the surface