“Detector” and “Event” data model

STAR 3D geometry Object Model

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TDataSet Legend:

| "classA”

| |"classB" is derived from

v v the "classA”

TVolume "classB”

^

| "classQ”

| ^ "classQ" has a pointer

TShape | to "classT”

| "classT”

v

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| | | | |

| | | . . . | |

| | | | |

v v v v v

St_PolyLineShape TBRIK TTUBE TPCON TTRD1

| ^

| | R O O T S H A P E S

v | (see GEANT 3.21 shapes as well)

St_PolyLine3D |

|

TPoints3DABC

|

v

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| | | |

| | | |

| | | |

V v v v

StHits3DPoints StHelix3DPoints St_Table3Points St_Points3D

^ ^ ^ ^

| | | |

| | | |

StObjArray StTrack / StHelixD St_TableSorter flat floating

^ point array

| (see St_PolyLine3D as well)

St_Table

S T A R S H A P E S

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