ajandClaude Opus 5.5
1b862dc1a8
Layouts placed exactly at the part spacing can land ~1e-4 short once rotated, rounded (e.g. PEP's 4-decimal exports) and snapped to the Clipper grid, so both validators rejected layouts that were correct in practice. NestTolerances.SpacingSlack (0.0005, far below anything a cutting machine resolves) is now subtracted from the spacing by NestLayoutCheck's inflation and NestJobPlacementValidator's edge-distance check. The frozen LegacyNestValidator takes the same rule so the equivalence tests keep comparing like with like. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
38 lines
2.0 KiB
C#
38 lines
2.0 KiB
C#
using System;
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using OpenNest.Geometry;
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namespace OpenNest.Engine.Jobs;
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/// <summary>Shared numerical contract for layout validation.
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/// Only material contours (SpecialLayers.IsMaterial) count for bounds, clearance and scoring.
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/// Scribe/etch marks never affect these checks or salvage envelopes, even outside the sheet.</summary>
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public static class NestTolerances
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{
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/// <summary>Arc chord tolerance used by both validators. The layout check circumscribes
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/// perimeter arcs and inscribes cutouts; the placement validator uses inscribed arcs.</summary>
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public const double ValidationOutline = 0.001;
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/// <summary>How far under the part spacing a gap may fall and still pass both validators.
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/// Layouts placed exactly at the spacing land up to ~1e-4 short once rotated, rounded
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/// coordinates (e.g. PEP's 4-decimal exports) meet the Clipper grid; 0.0005 covers that
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/// with margin and is far below anything a cutting machine can resolve.</summary>
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public const double SpacingSlack = 0.0005;
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/// <summary>Clipper decimal precision (a 1e-4 coordinate grid).</summary>
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public const int ClipperPrecision = ClipperBridge.Precision;
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/// <summary>Extra pair clearance for an engine whose outline error is bounded by t.
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/// Each of two boundaries contributes ValidationOutline from validator flattening,
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/// one Clipper grid unit from rounding, and t from engine flattening: therefore
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/// 2 * ValidationOutline + 2 * 10^(-ClipperPrecision) + 2 * t.
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/// This budget assumes valid material geometry and bounded chord error on both sides.</summary>
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/// <exception cref="ArgumentOutOfRangeException">Tolerance is negative or non-finite.</exception>
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public static double SafeClearanceMargin(double engineChordTolerance)
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{
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if (!double.IsFinite(engineChordTolerance) || engineChordTolerance < 0)
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throw new ArgumentOutOfRangeException(nameof(engineChordTolerance));
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return 2 * ValidationOutline + 2 * System.Math.Pow(10, -ClipperPrecision)
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+ 2 * engineChordTolerance;
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}
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}
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