FPCL FPCL

HepTuple

Histogram/Tuple Wrapper Classes

Classes to provide general Tuple and Histogram support.Abstract classes provide the structure, which concrete classes for HBook and Hippo implement. In the future newer (hopefully better) classes can be used for the underlying implementation.

Intended status:

• Interface developed based on work in CLHEP.
• Implementation written from existing packages.
• Fully supported (documentation, testing, and so forth) freely available to the HEP community.

Development status

• 1/21/97 Preliminary Module Proposal available.
  
• 1/31/97 Preliminary Feature Guide and module proposal submitted to Policy board and for ready viewing and comments by CDF/D0 developers. On this date I will make browsing of the existing package available. Start thinking about what is missing.

• 3/1/97 Existing interface evaluation will be done. Details of proposed extensions to the interface will be proposed.
  
• 3/15/97 Feedback period will be over, and implementation of the proposal will begin.
• 4/15/97 Distribution of documentation enhancements nominally completed. A first release Fermilab supported distribution should be available.
• 5/1/97 A second release based on suggestions made at the 3/16/97 interface review will be available.
• At some point, which we do not have a date for yet, the Fermilab histogram package HistoScope will be used as a concrete implementaion for the HepTuple interface.

User Interface

The HepTuple model is that a user does not always have to specify the concrete class type when creating a Tuple or Histogram. Therefor only minimal modifications to user code will be necessary to switch from one underlying package to the next. There are only 3 main user interface classes: HepTupleManager, HepHistogram, and HepTuple. A class diagram is available. The best way to understand this package is to look at an example.

Source information

Here are the existing sources for HepTuple as of Jan. 31, 1997

Interface classes:

TupleManager.cc
TupleManager.h
Histogram.cc
Histogram.h
Tuple.cc
Tuple.h

Implementation classes:

HBookFile.cc
HBookFile.h
HBookHistogram.cc
HBookHistogram.h
HBookTuple.cc
HBookTuple.h
HippoFile.cc
HippoFile.h
HippoHisto.h
HippoHisto1D.cc
HippoHisto1D.h
HippoHisto2D.cc
HippoHisto2D.h
HippoTuple.cc
HippoTuple.h

Links to Module Information

Object Modle Report for HepTuple Jan. 31, 1997

Module proposal

Testing and Verification Strategy (in development)

Development Roles and Assignments (in development)

Expediters:

• Liz Sexton-Kennedy
  
• John Marraffino
  

Documentation

• Users Guide and/or Features Guide (not yet available)
• Example (Tutorial not yet available)
• Internals and Maintenance (not yet available)
• Class Diagram Design
• Testing, Problem and Enhancement log (not yet available)