Every whole-job engine chooses among the offered stock sizes, and on the
synthetic benchmark nests Default matched or beat StockLadder on all 18
runs (saved sizes, a six-size pool, with and without salvage credit),
costing 30-40% less in total with mixed sizes. Its sheet-swap step never
produced a win over Irregular's tail re-plan.
The registry maps "StockLadder" to Default so saved selections, scripts
and API requests keep working. OrderedPlateNester stays: Fill and the
remnant strategies use it for restricted rotations, and its golden layout
is now pinned through NestJobRunner with the parts requested largest
first, as StockLadder requested them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The multi-phase lattice fill (linear, pairs, rectangle best-fit, remainder) is
no longer meant to be the engine used by default, so it gets a name for what
it does. The registry lists it as Fill and maps the old name Default to it;
PlateFillService, PlateNesterFactory and NestJobOptions use Fill, and every
fill-strategy caller still accepts Default. Console --autonest now validates
engine names through NestingEngineRegistry.ResolveName so renamed names work.
Layouts are unchanged: Default and Fill resolve to the same fillers and the
golden layouts pass under the new name.
DefaultPlateFiller.PackArea (Default, Strip and both Remnant strategies)
now packs leftover parts with the shared maximal-rectangles packer instead
of bottom-left corner points. Every fit rule and pick mode is tried; the
layout placing the most parts, then box area, per priority tier wins, and
the strategy's own fill comparer breaks ties so remnant strategies keep
their clear side. PackBottomLeft and PackEngine are removed.
Rectangle-lane benchmark (91 strict + 77 boxable jobs) against the old
packer: no strategy lost a valid layout; Default, Vertical Remnant,
Horizontal Remnant and Strip complete 2-3 more strict jobs, and Strip
gains a valid one. Cost on jobs complete in both runs falls for every
strategy (Default -0.6% strict, -2.7% boxable). Default is about 7-10%
slower on the changed jobs.
Golden layouts for Default and both Remnant strategies are re-captured;
each is complete, passes NestLayoutCheck and repeats exactly.
Pin committed fulfillment and exact placement poses for Default, Strip,
Vertical Remnant, and Horizontal Remnant through the production
PlateNesterFactory + NestJobRunner path, plus deterministic poses for
OrderedPlateNester via its StockLadder wiring (no legacy counterpart) and
authoritative progress-stage sequences for StockLadder and
FixedStrategyNestingEngine. Captured at 42bbde7 (post ShrinkFiller axis
fix); these fixtures are the regression net for the legacy-engine removal.
Note: Strip is pinned on a rectangle-variety job. On dense mixed-shape
jobs the iterative shrink path intermittently proposes overlapping
candidates (pre-existing scheduling nondeterminism), so its mixed-geometry
layout is deliberately not pinned.
ajandClaude Opus 5.5