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feat(engine): include rotating calipers angle in pair nesting tiling

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PairEvaluator already computes OptimalRotation via RotatingCalipers on
the pair's convex hull, but PairFiller.EvaluateCandidate only passed
hull edge angles to FillPattern. Now includes the optimal rotation
angle (and +90°) so tiling can use the mathematically tightest fit.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
AJ Isaacs
2026-03-19 10:42:29 -04:00
parent 116a386152
commit 1e9640d4fc
1 changed files with 11 additions and 1 deletions
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12
OpenNest.Engine/Fill/PairFiller.cs
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@@ -107,7 +107,17 @@ namespace OpenNest.Engine.Fill
var p90 = FillHelpers.BuildRotatedPattern(pairParts, Angle.HalfPI);
engine.RemainderPatterns = new List<Pattern> { p0, p90 };
return FillHelpers.FillPattern(engine, pairParts, candidate.HullAngles, workArea);
// Include the pair's rotating calipers optimal rotation angle
// alongside the hull edge angles for tiling.
var angles = new List<double>(candidate.HullAngles);
var optAngle = -candidate.OptimalRotation;
if (!angles.Any(a => a.IsEqualTo(optAngle)))
angles.Add(optAngle);
var optAngle90 = Angle.NormalizeRad(optAngle + Angle.HalfPI);
if (!angles.Any(a => a.IsEqualTo(optAngle90)))
angles.Add(optAngle90);
return FillHelpers.FillPattern(engine, pairParts, angles, workArea);
}
private List<BestFitResult> SelectPairCandidates(List<BestFitResult> bestFits, Box workArea)