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ajandClaude Opus 5.5
735c076afb
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>
68 lines
2.4 KiB
C#
68 lines
2.4 KiB
C#
using OpenNest.CNC;
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using OpenNest.Engine.Fill;
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using OpenNest.Engine.Jobs;
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using OpenNest.Engine.Jobs.Placement;
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using OpenNest.Geometry;
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using OpenNest.Math;
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namespace OpenNest.Engine.Tests.Fill;
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/// <summary>
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/// A reported nest: a 9" angle bracket with 2.5" legs on a 48 x 96 plate. Fill paired brackets
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/// at 90°/270° (75); laid by hand at 315°/135°, each row nests its brackets corner into corner
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/// along the sheet and the reversed row interlocks with it, a herringbone of 84.
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/// </summary>
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public class HerringboneFillTests
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{
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/// <summary>The reported drawing's program, in absolute coordinates.</summary>
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private static Drawing AngleBracket()
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{
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var program = new Program();
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foreach (var (x, y) in new[] { (0.0, 0.0), (-6.25, 3.75), (-6.25, 6.25), (-2.5, 0.0) })
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{
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program.MoveTo(x, y);
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program.ArcTo(new Vector(x, y), new Vector(x - 0.28125, y), RotationType.CCW);
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}
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program.MoveTo(-7.78125, -1.25);
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program.LineTo(-7.78125, 7.75);
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program.LineTo(-5.28125, 7.75);
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program.LineTo(-5.28125, 2.25);
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program.ArcTo(new Vector(-4.28125, 1.25), new Vector(-4.28125, 2.25), RotationType.CCW);
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program.LineTo(1.21875, 1.25);
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program.LineTo(1.21875, -1.25);
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program.LineTo(-7.78125, -1.25);
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return new Drawing("Angle Bracket", program);
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}
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[Fact]
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public void FillFindsTheHerringboneOfAngleBrackets()
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{
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var plate = new Plate(new Size(48, 96))
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{
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PartSpacing = 0.25,
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EdgeSpacing = new Spacing(0.5, 0.25, 0.5, 0.25),
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};
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var drawing = AngleBracket();
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var parts = PlateFillService.FillItem("Fill", plate,
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new NestItem { Drawing = drawing, Quantity = 0 }, plate.WorkArea(), null,
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CancellationToken.None);
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Assert.Equal(84, parts.Count);
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Assert.Empty(NestLayoutCheck.Validate(new() { (plate, parts) },
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new Dictionary<Drawing, (string, int)> { [drawing] = ("Angle Bracket", 84) }));
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}
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[Fact]
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public void RotationsLayEachHullEdgeAlongTheSheetInEveryQuarterTurn()
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{
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var degrees = HerringbonePatterns.Rotations(AngleBracket())
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.Select(r => System.Math.Round(Angle.ToDegrees(r)))
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.OrderBy(d => d)
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.ToList();
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Assert.Equal(new[] { 0.0, 45, 90, 135, 180, 225, 270, 315 }, degrees);
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}
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}
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