Point-in-material used exact Y comparisons, but rings are only nominally
closed: capture admits closure seams and PEP-converted or rotated geometry
carries sub-micro-inch vertex jogs. When a jog straddled the test ray's Y,
the two edges at that shared vertex disagreed which side it was on and the
parity flipped, so a point ten inches outside a material read as interior.
LeadMaterialSnapshot reported leads as entering a neighbour they could not
touch, and the enclosing-perimeter check refused to capture materials whose
rings it misclassified.
Snap the ray comparison by the admitted seam tolerance so both edges at a
shared vertex decide together. Features larger than the tolerance still
count, and containment of a point within the tolerance of an edge stays as
ambiguous as before. On the 93-plate corpus 83 plates are untouched, one
previously refused plate now plans and replays, and 48/93 plates reach
Ready. Accepting more leads also changed one plate's first-found route to a
longer rapid path; that is search ranking, recorded with the measurements.
Also drops an extent-prefilter fast path measured at -6.8% corpus time: it
cleared leads whose native contact was reported beyond any fixed bbox
margin, which NearbyMaterialCheckTests deliberately pins as a refusal.
Capture and preparation agree that a nominal contour may close within
NominalContourClosure.Tolerance inclusively, which converted drawings rely on:
the sampled production corpus carries vertex gaps up to 1e-6. Replay
verification still compared those rings at the exact geometry epsilon, so the
one joint a rotated tool path legitimately bridges refused the whole plate
after the search had already spent its budget.
Census of 91 plates from 60 stored nests: every searched plate containing such
a seam refused with contour-accounting (4 plates, 76.5s of wasted search, worst
71.7s for one 11-part plate), and none of the 42 ready plates had one. Replay
now carries that same admitted endpoint gap as positional and length slack for
the affected ring only. Direction sign, coverage order, retrace detection, ring
counting and selected-emission binding keep the exact epsilon, and capture's
closure admission is unchanged.
With the fix the census yields 45 ready plates instead of 42, no plate changed
any other way, and expansion counts are identical wherever status matched.
P260805-01's 16-part plate plans in 0.76s rather than refusing after 4,129
expansions.
Tests: SeamClosureReplayTests covers seams of 0, 5e-7 and 1e-6 plus four
accounting faults (missing edge, reversed edge, interior shift beyond the
admitted seam, second circuit) that must still refuse, and the beyond-tolerance
capture refusal. OpenNest.Tests 3751, OpenNest.Engine.Tests 690 and
OpenNest.IO.Tests 79 pass; Windows-only projects cannot build on Linux.
Keep cut outlines dark and etch strokes bright green. Assign drawing fills by a golden-angle hue walk with varied saturation/lightness tiers, preserving legacy schemes and rendering-only behavior. Include palette, visibility, persistence, and contrast regressions.
aj