Make TrackFieldExtrapolatorBase and PrVeloUTMagnetTool get the magnetic field as a condition
With DD4hep we cannot use the MagneticFieldSvc
to access the magnetic field grid. The new way to access it is via a condition, which is backward compatible (thanks to LHCb!3107 (merged)).
This MR modified the tack extrapolators to use the condition instead of the MagneticFieldSvc
.
Requires LHCb!3530 (merged) LHCb!3541 (merged) LHCb!3542 (merged) LHCb!3543 (merged).
Edited by Marco Clemencic