1. - GDML - ROOT I/O for Geant4 - General Suggestions SFT Program of Work Meeting Witek Pokorski 03/03/2010

2. GDML: Current status and motivation Geant4 and ROOT interfaces for GDML exist, but are basically unsupported – current effort close to 0 interest from a number of people – discussed in the context of LCD geometry tools useful to convert geometries between Geant4 and TGeo application-independent, extensible, persistent format for the geometry 03/03/102Witek Pokorski

3. GDML: Proposal we should identify effort to work on GDML – technical student/fellow? revise/update the existing code improve the documentation – not mentioned in ROOT manual? provide support for the new users – implement new requested features 03/03/103Witek Pokorski

4. ROOT I/O for G4 geometry: status quite some work done ~2 years ago to allow storing entire Geant4 geometry trees using ROOT I/O latest status (that I remember...) very promising project frozen since then? 03/03/104Witek Pokorski

5. ROOT I/O for Geant4: proposal with the help of the ROOT experts, introduce ROOT I/O (for geometry and not only) in the core Geant4 code – build the Reflex dictionary for G4 classes in the G4 makefiles dictionary of G4 classes should be part of G4 distribution – use PyROOT/CINT for G4 steering 03/03/105Witek Pokorski

6. General suggestions involve ROOT experts in the G4 architecture review setup regular G4<>ROOT code reviews directly involve (put in charge) ROOT expert in the G4 persistency project/module setup a common G4/TGeo geometry working group leading to an integration of the two technologies 03/03/106Witek Pokorski