aj
b688ce896f
Moves the two production plug-in engines into OpenNest.Engine under names that describe the jobs they suit: - Rectangles: plain and near-rectangular plates, maximal-rectangles box packing (was the RectanglesNestingEngine plug-in) - Irregular: irregular profiles, no-fit-polygon frontier packing (was the Opus55NestingEngine plug-in) Their tests and the shared engine contract/layout test kit move into OpenNest.Engine.Tests/NestingEngines. The registry maps the old plug-in names to the new engines, so saved desktop selections, scripts and API requests keep working, and a leftover plug-in DLL under an old name cannot shadow its replacement. Desktop startup passes the registry's lookup when restoring the saved Auto Nest engine.
70 lines
2.6 KiB
C#
70 lines
2.6 KiB
C#
using OpenNest.Engine.NestingEngines.Irregular;
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using System.Linq;
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using Clipper2Lib;
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using OpenNest.CNC;
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using OpenNest.Engine.Jobs;
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using OpenNest.Geometry;
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namespace OpenNest.Engine.Tests.NestingEngines;
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public class IrregularNoFitCacheTests
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{
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[Theory]
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[InlineData(0.0, 0.0)] // B's corner at A's corner: B covers A completely.
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[InlineData(-5.0, -5.0)] // A deep inside B.
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[InlineData(2.0, 0.5)] // Partial overlap.
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public void ForbidsEveryOverlappingOffsetIncludingContainment(double dx, double dy)
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{
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var (small, big) = Orientations();
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var nfp = new NoFitCache(0.1).Get(small, big);
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Assert.True(Forbidden(nfp, new PointD(dx, dy)), $"offset ({dx}, {dy}) should be forbidden");
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}
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[Theory]
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[InlineData(4.0, 0.0)] // Beside A, clear by more than the clearance.
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[InlineData(0.0, -21.0)] // Below A.
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[InlineData(-21.0, 0.0)] // Left of A.
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public void AllowsClearOffsets(double dx, double dy)
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{
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var (small, big) = Orientations();
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var nfp = new NoFitCache(0.1).Get(small, big);
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Assert.False(Forbidden(nfp, new PointD(dx, dy)), $"offset ({dx}, {dy}) should be free");
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}
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/// <summary>A = 3x3 L (concave), B = 20x20 square; both at rotation 0 with origin at the lower-left.</summary>
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private static (Orientation Small, Orientation Big) Orientations()
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{
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var job = new NestJob(
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new[]
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{
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new NestJobPart("small", Snapshot((0, 0), (3, 0), (3, 1), (1, 1), (1, 3), (0, 3)), 1, 0, RotationPolicy.Fixed(0)),
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new NestJobPart("big", Snapshot((0, 0), (20, 0), (20, 20), (0, 20)), 1, 0, RotationPolicy.Fixed(0)),
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},
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new[] { new NestPlateStock("s", new Size(100, 100)) }
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);
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var types = PartCatalog.Build(job);
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return (types[0].Orientations.Single(), types[1].Orientations.Single());
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}
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private static bool Forbidden(Nfp nfp, PointD point)
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{
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var winding = 0;
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foreach (var path in nfp.Region)
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if (Clipper.PointInPolygon(point, path) == PointInPolygonResult.IsInside)
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winding += Clipper.IsPositive(path) ? 1 : -1;
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return winding != 0;
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}
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private static PartGeometrySnapshot Snapshot(params (double X, double Y)[] points)
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{
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var program = new Program();
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program.Codes.Add(new RapidMove(points[0].X, points[0].Y));
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foreach (var (x, y) in points.Skip(1))
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program.Codes.Add(new LinearMove(x, y));
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program.Codes.Add(new LinearMove(points[0].X, points[0].Y));
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return PartGeometrySnapshot.FromProgram(program);
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}
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}
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