Issues

The following issues needing infrastruture work were identified at the workshop:

Reconstruction

PFA "template" into which different (clustering etc) algorithms can be inserted
Complete finding/fitting package
Ability to reconstruct event particle by particle
Cluster finding should be steered on physics quantities (interaction lengths, etc)
Track seeded cluster finding.

Some outstanding issues which need discussion
- Add CellID to TrackerHit
- Entry/Exit point for SimTrackerHit

Need example of how to add new items to WIRED (WWWLCSIM-8@jira)
- Need tutorial documentation on HepRep capabilities (WWWLCSIM-7@jira)
Need more advanced examples

Drivers etc (lcsim-103@jira)
- Should be possible to add a subdriver without causing to be explicitly called.
- Driver should provide standard way to control input/output collections
- Logging, should be improved.
  - Improve filter example
Steering file for offline use (adopt Marlin scheme?)
Ability to save MCParticle with cheater clusters
Ability to sort on columns in LCIO Event Browser (lcsim-34@jira)
Event Overlays
Hit neighbour calculation in corners, detector overlap regions
Improve sampling fraction handling in calorimeter
Ability to integrate Marlin/lcsim processors.
DigiSim should produce SimCalorimeterHits?

Should add support for flags (EM,HAD,Digital,Analog etc) for sub-detectors. (gc-34@jira)
Access to properies of materials. Calculation of dE/dx. (GC-66@jira)
- Maybe should add dE/dx calculation to materials subsystem
More realistic LDC geometry description (octagonal calorimeter)

Cuts (wired-71@bugs)
should be able to save user preferences e.g collection visibility (wired-477@bugs)
Wired performance with large number of (e.g.) TPCHits