GaudiAlg.Algs.TupleAlgo Class Reference

Inheritance diagram for GaudiAlg.Algs.TupleAlgo:

Collaboration diagram for GaudiAlg.Algs.TupleAlgo:

Detailed Description

*******************************************************************************
*                                                * 'Physisics do not like it, *
*                                                *  physisics do not need it, *
*                                                *  physisics do not use  it' *
*                                                * ****************************
*  Usage:                                                                     *
*                                                                             *
*  from GaudiAlg.Algs import TupleAlgo, SUCCESS                                    *
*                                                                             *
*  class MyClass(TupleAlgo) :                                                 *
*       ' My specific Algorithm, derived from TupleAlgo base class '          *
*       def __init__( self , name , **args ) :                                *
*            'Constructor from algorithm instance name & parameters'          *
*             #invoke the constructor of base class                           *
*             TupleAlgo.__init__(self , name , **args )                       *
*                                                                             *
*       def execute ( self ) :                                                *
*            'Major method (from IAlgorithm interface)'                       *
*                                                                             *
*           # get some data from Transient Event Store                        *
*           tracks = self.get('/Event/Rec/Tracks')                            *
*                                                                             *
*           tup = self.nTuple('My N-Tuple')                                   *
*                                                                             *
*           for track in tracks :                                             *
*                                                                             *
*                 pt   = track.pt   ()                                        *
*                 p    = track.p    ()                                        *
*                 chi2 = track.chi2 ()                                        *
*                                                                             *
*                 #fill N-tuple:                                              *
*                 tup.column ( 'pt'   ,  pt   )                               *
*                 tup.column ( 'p'    ,  p    )                               *
*                 tup.column ( 'chi2' ,  chi2 )                               *
*                 #commit the row                                             *
*                 tup.write  ()                                               *
*                                                                             *
*           return SUCCESS                                                    *
*                                                                             *
*******************************************************************************

Definition at line 882 of file Algs.py.

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The documentation for this class was generated from the following file:

• GaudiAlg/python/GaudiAlg/Algs.py