Priority worked like a rank (lower first) with a default of 0, and the
Edit Drawing form stopped at 0, so moving one part ahead of the rest
meant renumbering every other drawing. Higher-first lets a user raise a
single part to 1 and leave everything else at the default.
Every engine, filler and candidate comparer now serves the highest tier
first. Stored values keep their order:
- .nest files add `nestPriority` and keep writing the negated value under
`priority`, so older readers nest in the same order; files without
`nestPriority` are negated on read. Drawing packages strip both, so
package hashes are unchanged.
- Library settings send both keys the same way for older clients.
- Server schema v18 negates stored drawing priorities (an older server
refuses the upgraded database).
- Job documents move to version 2; version 1 jobs are converted, and an
older worker refuses version 2 instead of reversing the order.
The Edit Drawing form now accepts negative priorities and says higher
numbers nest first.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
NestPlateStock carries the outline; its usable material (less obstacles,
eroded by the largest edge spacing) becomes the FrontierPacker's
PackBoundary. The layout check and the runner's candidate validation
reject a part outside the outline or over an obstacle, area-based cost
and the area budget use the material area, salvage credits nothing, and
Rectangles, Circles, FlatBar and the fill strategies place nothing on it.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Without salvage credit (desktop Auto Nest on a single plate size) every
complete one-sheet layout costs the same, so engines kept whichever layout
came first. N26-23S nested 27.86" long when turning two parts fits it in
21.3".
NestJobCost.CompactnessOffcut measures the largest full-width/full-length
edge offcut as salvage does, whatever the salvage rate. Default and Circles
(CandidateScore), Rectangles and Circles sheet choice (SheetByStock) and
Irregular sheet and plan ranking use it only after cost, so no cost changes.
Sheet-level keys round to 1e-6 to keep ties platform-independent.
Rectangles layout digests are re-captured: each changed fixture keeps its
sheets, parts and cost and leaves a larger offcut.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Circles packs every part as its minimum enclosing circle at centers tangent
to two of the work-area walls, placed discs and clamp keep-outs, bottom-left
and left-bottom, with hexagonal and square lattice seeds. It bids only when
every part fills at least 0.8 of its enclosing circle and otherwise returns
everything unplaced at once. Default runs it as a third candidate.
Rectangles' sheet-by-sheet stock loop moves to NestingEngines/SheetByStock
(Rectangles output unchanged) and Default's candidate scoring and commit
forwarding become shared helpers. Circles also runs the whole job preferring
each offered stock and keeps the best result. Contract tests take shapes an
engine can override.
Synthetic round jobs, salvage-credited: Circles wins or ties all six with
valid layouts; Default cost falls about 4% versus Irregular alone.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ajandClaude Opus 5.5