File Common.hpp

namespace Acts


This file is foreseen for the Geometry module to replace Extent


enum CoordinateIndices

Components of coordinate vectors.

To be used to access coordinate components by named indices instead of magic numbers. This must be a regular enum and not a scoped enum class to allow implicit conversion to an integer. The enum value are thus visible directly in namespace Acts.

This index enum is not user-configurable (in contrast e.g. to the track parameter index enums) since it must be compatible with varying dimensionality (2d-4d) and other access methods (.{x,y,z}() accessors).


enumerator ePos0
enumerator ePos1
enumerator ePos2
enumerator eTime
enumerator eMom0
enumerator eMom1
enumerator eMom2
enumerator eEnergy
enumerator eX
enumerator eY
enumerator eZ
enum MaterialUpdateStage

This is a steering enum to tell which material update stage:

  • PreUpdate : update on approach of a surface

  • FullUpdate : update when passing a surface

  • PostUpdate : update when leaving a surface


enumerator PreUpdate
enumerator FullUpdate
enumerator PostUpdate
enum NoiseUpdateMode

to tell how to deal with noise term in covariance transport

  • removeNoise: subtract noise term

  • addNoise: add noise term


enumerator removeNoise
enumerator addNoise


std::ostream &operator<<(std::ostream &os, MaterialUpdateStage matUpdate)