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Please Join DD4hep developer's meeting via Zoom
Present: M.Frank, T.Madlener, A.Sailer, C.Vuosalo
1) Pending problems
1.1) Pending problems reported by Sang Hyun Ko:
- Cannot setup Birk's constant as material property.
- No analogy to G4PVParametrized. Unclear if a solution is possible.
1.2) Add GFlash parameterisation to DDG4 (issue #802)
1.3) Problems with ROOT-python compatibilities (issue 842)
1.4) DDG4: isotropic gun distribution also forces uniform momentum distribution #862
2) Closed issues and fixed problems
2.1) [CMS] Certain warnings not needed because they report intended behavior (issue #844)
==> Solved internally in CMS-SW
==> Changes to test for rotations in DD4hep un-done (Markus)
2.2) Difficulty properly aligning daughter volumes with trap (issue #837)
==> Closed, no action
2.3) DD4hep ignores tiny rotation for placed volume #870 --> is now reversed (Markus Frank)
==> Closed
3) Round table
3.1) Carl: Warning issues still present from change of units. Is it possible to demote it to INFO ?
See issue #844
3.2) Andre: NTR
3.3) Thomas: Investigating GFlash. Try to bring findings back to DD4hep.
3.4) Markus: Simplification of expression evaluator.
4) AOB
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Next meeting in 2 weeks 28.October 2021