These are the release notes for LCDD 1.12.0 .

The automatically created links to Jira are listed at the end of the notes.

Summary of Changes Since Last Release

• Bug fixed in combining tracker hits with G4TrackerCombineSD. Energy cut is now performed on the final combined hit rather than individual steps.
• Bug fixed in RZBFieldMap where steps at the boundary caused the algorithm to crash. Action at boundary is now much simpler and doesn't crash.
• Verbose output from sensitive detectors was improved, especially for G4TrackerCombineSD.
• CalorimeterHits can now be aggregated using position or ID of the virtual readout cell.
• A command was added to dump GDML from the command line or macro interface.
• Global field overlay was added and is the default behavior of the field manager.
• Two commands for checking overlaps using the built-in functions of G4LogicalVolume were added to the /lcdd command dir.
• A simple dipole magnet type was added to the LCDD format.
• Interactive commands to loaded sensitive detectors was added in the /detectors macro directory.
• The verbosity of sensitive detectors can be modified at runtime using the /detectors commands.

Bug

• [LCDD-63] - Remove energy cut on single step in G4TrackerCombineSD.
• [LCDD-65] - MCParticles produced by the simulation without hits are still written into the LCIO file.
• [LCDD-66] - Field map geometry causes slic to crash.

Improvement

• [LCDD-32] - Improve verbose output of sensitive detectors.
• [LCDD-33] - Improve printing of Geant4 runtime objects.

New Feature

• [LCDD-3] - aggregate cal hits by matching IDs OR global coordinates
• [LCDD-35] - Add command for dumping GDML.
• [LCDD-43] - Entity resolution using full paths from URL.
• [LCDD-47] - dipole magnet
• [LCDD-48] - Overlay global magnetic fields.
• [LCDD-50] - Improved handling of magnetic fields in LCDD.
• [LCDD-61] - Add macro command to check overlaps of volumes, using the CheckOverlaps() function on the physical volume.
• [LCDD-70] - Macro commands for sensitive detectors.

Task

• [LCDD-27] - Use G4TMP for initial LCDD lib location.
• [LCDD-29] - Investigate G4Material warning.
• [LCDD-36] - GDML build on Darwin.
• [LCDD-40] - Option for setting up schema dir.
• [LCDD-64] - Verbose setting of sensitive detectors should be a Geant4 macro command rather than a value read from the LCDD file.
• [LCDD-69] - Prepend include guard define variables with LCDD_ in all header files.