Extend the work from #3496 to allow the safe optimization of more
complex step transitions.
- Use the actual safePDC path for short step transitions and breaks,
currently up to 2 cutter diameters. This value is chosen to cover
basically all typical end step-overs, including those with heavy skew.
Extending this much further (up to the break even point for a retract &
rapid) will need some careful thinking for multi pass paths.
- Coordinate offset tolerances with per-operation tessellation
tolerances, to avoid tessellation artifacts messing up paths by
causing false retracts. Such retracts can cause entire steps near
vertical areas to be falsely skipped, which would cause a major
deviation from the target model. By considering per-job tolerances, we
allow users to safely save computational resources by computing roughing
operations with lower precision, or selectively increase precision for
finish passes.
- Refine the default tessellation tolerance to GeometryTolerance / 4.
This makes sure that the job GeometryTolerance is respected by
operation defaults.
72524e9056