Fill paired a 9" angle bracket at 90/270 degrees (75 on a 48 x 96 plate)
while a hand-laid herringbone at 315/135 holds 84. Its pair touches only at
the legs' ends, so it ranked ~888th by pair box area, and pairs are tiled
at the pair's own hull angles, never the part's 45-degree edge.
The pairs phase now also builds herringbone pairs: the part turned so a
hull edge lies along a sheet axis, its 180-degree copy slid onto the row
the part makes along that axis, tiled and remnant-filled like best-fit
pairs. Fill now finds the 84.
The chevron in the learned-angle fixture became a herringbone whatever
angles were learned, so a cross replaces it; the learned-angle and Strip
mixed nests are re-pinned.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Fill tiled 8" gussets on a 16.85 x 60 strip as seven pairs in a 10.35"
column (14) and left a strip too narrow for a gusset square on. Sliding
each pair along its hypotenuse so six span the height narrows the column
to 8.75" and leaves a strip that holds eight more turned 45 degrees (20),
as laid out by hand.
- The pair remnant filler tries strips down to the part's narrowest hull
width and tiles single best-fit pairs as a grid there, taking the grid
only when it places more than the rows of pairs.
- After the pair filler's early exit it also tries skipped candidates
whose grid plus an optimistic leftover-strip estimate could still win,
keeping one only when it places more parts.
- The optimistic remnant bound counts parts by true area, not bounding
box, so interlocking parts no longer prune winning candidates.
The mixed Fill nest pin now places 34 instead of 33; the mixed Strip nest
keeps 35 with its L-shapes laid out differently. Both pass the layout check.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
After the fill strategies, the winning layout's outermost row on each side
is pushed into the edge slack, slid toward one end, and copies of its end
part are slid in from the freed end. Lifting a staggered hexagon row straight
over the one below opens a notch where one more nests: a 7" hex cover on a
60 x 120 sheet now fills 181 instead of 180. The policy's comparer must
prefer the result and the requested quantity caps it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Interlocked rows, such as staggered triangles, cannot slide straight past
their neighbors, so capping the step with a push left them unable to
pattern down. The calculated step now moves the full distance like a fixed
nudge, even off the plate or onto a part; the layout check reports either.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Set Offset Increment gains a "Calculated distance" option. With it on, the
arrow keys move the selection by its own size plus the part spacing,
measured on its geometry like a fill's copy distance, so it lands tight
without a push back. The move stops early at an edge, clamp or part, and a
clone preview steps clear of the copy just placed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A single-drawing selection that fits no one lattice, such as staggered rows
topped by straight ones, now counts as a pattern when its rows share one
pitch along X (or Y). Each row stretches rigidly instead of the selection
falling back to the slow pair search.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A selection that repeats on a lattice (a fill) now has its lattice scaled
along X, then Y, as far as the work area and clearance floors allow, so the
pattern survives. Multi-part motifs stay rigid, no selected gap closes below
the smallest entry gap, and parts never pass through fixed material. Other
selections keep the pair search.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The spiral used only the least-waste rows and columns. Those often make
one pair of blocks the larger on both axes, so it overlapped itself and
placed nothing, leaving Fill at two blocks. It now also tries every
four-block combination and takes one that holds more parts than both the
least-waste spiral and the two-block layout, so ties keep today's layout.
A 9 x 6.5 part on a 60 x 120 sheet goes from 109 to 112.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Engine tests drew the same rectangle, square, L-shape and arc part in
private helpers across the Expander, golden-layout, fill-stack and
fixed-strategy tests. They now use TestDrawingFactory; files whose
helper had its own default size keep a one-line wrapper for it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Expand Spacing measured every ring pair of every part pair for each trial
move, so a packed layout of parts with holes took minutes per spacing
probe. Skip ring pairs, far part pairs and off-path parts whose bounds
already settle the answer.
Every pair was also held at its full starting gap, so parts could not
move toward anything and most layouts stayed at their entry spacing.
Part pairs may now close to the spacing being tried, never below a
smaller starting gap. Cut-offs and clamps keep their full entry gap.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The repo mixed variants such as center/centre and color/colour, so a
name could be spelled either way and searches missed half the hits.
Standardize on the US spelling, matching .NET's own APIs (Color, Center).
Wire values owned by other systems keep their spelling: the material
ledger's "Cancelled" hold status and GitHub's "cancelled" job status.
No behavior change beyond the spelling of a few status messages.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Fill only tried 0 and 90 degrees for parts classified as rectangles, so a long
part filling a 60 x 120 plate four high at 90 degrees left a 55 x 59 strip empty
although two more fit tilted about 33 degrees (a reported nest: 4 placed, 6 fit).
The second tilted part only fits with its corner tucked beside the grid, in the
strip the grid's slack leaves, so a plain rectangular remnant fill finds one.
TiltedRemnant runs after the other strategies. It moves the best layout flush to
one end so leftover room becomes one remnant, and to either end of the other axis
so its slack forms one strip; then tiles the part at the most upright angles that
fit the remnant's height and keeps only copies at least the part spacing from the
layout. It is skipped when the part fits the remnant upright, for circles, for an
explicit rotation range and once the requested quantity is placed.
Fill benchmark (--parallel 1): the synthetic set is unchanged (all valid, same
cost and plates). The reported part needs 1 sheet instead of 2 for 6 parts and
2 instead of 3 for 12.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Grows part-to-part spacing of a selected group with the work area and
non-selected parts as hard boundaries. Doubling + bisection search over
the target spacing; Gauss-Seidel straight-line relaxation with anchor
mover policy (later-index selected part moves, first selection never).
Overlapping input is separated along penetration MTVs instead of being
rejected. Cancel/failure never mutates part positions. Clearance gains
BoundaryDistance for ring-pair gaps (part-in-cutout legality).
ShrinkAxis.Length must shrink the Y extent and ShrinkAxis.Width the X
extent to agree with MeasureDimension/TrimToCount; Box's constructor
takes the X extent first. The estimate previously shrank the wrong
dimension and returned a mis-ordered box. Add a parameterized regression
test over both axes and both translated-remnant orientations.
Repo-wide sweep with the pinned CSharpier 1.3.0 tool. Whitespace and
line-wrapping only; OpenNest.Engine.Tests (109) and OpenNest.IO.Tests
pass after reformat, full solution builds 0 errors.
Added .csharpierignore so csproj/config XML keeps its existing layout
(CSharpier's XML wrapping churns attributes with zero benefit).
Formatting is now enforceable: dotnet csharpier check . passes.
SortStrips measured the gap between only the first two strips in original
placement order and replayed that single value between every strip after
reordering by height/width. Real (non-uniform) geometry produces varying
inter-strip gaps, so resequencing could expand the total footprint beyond
the plate's already-fitted work area, crashing StripPlateNester with
"Candidate placement falls outside the usable stock area." Using the
actual required spacing guarantees the resequenced span never exceeds
the original, since real gaps are always >= spacing.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
ajandClaude Opus 5.5