Longest edges produce the flattest tiling rows and should be tried
first. Also deduplicates angles before sorting.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
FillLinear now accepts optional RemainderPatterns that are tried in
leftover strips after the main grid fill, improving packing density
when pair patterns fit the narrow residual space.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
11 tasks across 3 chunks: extract AccumulatingProgress, ShrinkFiller,
AngleCandidateBuilder, PairFiller, RemnantFiller, then rewire both
engines and NestEngineBase.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add plateNumber parameter to PairFiller.Fill signature.
Document strip direction to ShrinkAxis mapping.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Extract shared algorithms from DefaultNestEngine and StripNestEngine
into focused helper classes: PairFiller, AngleCandidateBuilder,
ShrinkFiller, RemnantFiller, AccumulatingProgress.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Compute the label point from the base drawing's unrotated program
and rotate the cached point instead of recomputing on each rotation.
Prevents label jitter caused by arc discretization differences.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace PathPoints[0] label positioning with polylabel algorithm
to place part ID labels at the visual center of each part. Labels
are now centered and readable even in dense nests.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Two bugs caused the remnant finder to miss valid empty regions:
1. RemoveDominated used an 80% overlap-area threshold that incorrectly
removed L-shaped remnants. A tall strip to one side would "dominate"
wide strips above/below it even though they represent different usable
space. Replaced with geometric containment check — only remove a box
if it's fully inside a larger one.
2. FindTieredRemnants split remnants at the obstacle envelope boundary,
and both pieces could fall below minDimension even though the original
remnant passed the filter (e.g., 6.6" remnant split into 5.35" + 1.25"
with minDim=5.38"). Added fallback to keep the original unsplit.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Address review feedback: add holes parameter for parts with cutouts,
cache label point in program-local coords to survive zoom/pan, add
fallback for degenerate geometry, use ShapeProfile for outer contour
identification.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add plate-free Push overload and CompactIndividual method that pushes
each part individually against all others as obstacles. Disabled in
StripNestEngine pending investigation — compaction opens irregular gaps
that the remnant finder scatters parts into.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Parts created by fill operations share a Program instance via
CloneAtOffset. RotateSelectedParts called Part.Rotate on each,
compounding Program.Rotate on the shared object (1x, 2x, 3x…)
and producing inconsistent bounding boxes. Fix tracks rotated
programs with a HashSet, rotates locations around the group center,
and anchors the bounding box corner to prevent drift.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Skip remnants that are too small to fit any remaining part, avoiding
wasted fill attempts. Recalculated each iteration as quantities deplete.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Remainder items were being filled into the full remnant box without
compaction. Added ShrinkFill helper that fills then shrinks the box
horizontally and vertically while maintaining the same part count.
This matches the strip item's shrink behavior and produces tighter
layouts that leave more usable space for subsequent items.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The iterative remnant fill was mutating shared NestItem.Quantity objects,
causing the second TryOrientation call (left) to see depleted quantities
from the first call (bottom). Use a local dictionary instead so both
orientations start with the full quantities.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace the single-pass guillotine split approach with RemnantFinder-based
iteration. After each fill, re-discover all free rectangles and try all
remaining items again until no more progress is made. This fills gaps that
were previously left empty after the initial strip + remainder layout.
Also change ActiveWorkArea border color from orange to red.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
