Generic clustering classes for EDM (d0cluster

Generic clustering classes for EDM (package d0cluster_evt)

27nov00 1050
Code version 0.21

An introduction to D0 global tracking may be found at http://www-d0.fnal.gov/global_tracking.

Links to code

The description below includes links to the code contained in this package. This version of the code may not be the most recent.

Description

This package defines generic cluster classes which depend on EDM. Those not depending on EDM may be found in package d0cluster.

The physical components include:

ChunkClusterPtr ( header, source, test )
D0ClusterChunk ( header, source, test, test header )

The component dependencies are illustrated in the [nonexistent] physical dependency diagram.

This package depends on the following external packages:

d0cluster - Generic clustering
trffit - TRF++ fitting classes
trflayer - TRF++ layer classes
trfbase - TRF++ base classes
trfutil - TRF++ utilities
chunkptr - chunk pointer template
ptr - Pointer classes
edm - D0 event data model
identifiers - D0 event data model identifiers
d0om - D0 persistence

The classes defined in the above components are described below. Each class is defined in a component of the same name unless otherwise indicated. The descriptions are brief. See the header files for details.

Pointers

ChunkClusterPointer is a typedef to an instantiation of the template ChunkObjectPtr in package chunkptr. It is appropriate for fetching generic clusters from a generic cluster chunk.

Generic cluster chunk

Clusters used for track finding and fitting must inherit from D0Cluster and must be stored in chunks which inherit from the generic cluster chunk D0ClusterChunk.

Questions or comments to dladams@fnal.gov.