62 lines
2.8 KiB
C#
62 lines
2.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Threading;
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namespace OpenNest;
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/// <summary>
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/// A fresh private legacy plate/drawing/item graph for each call. Only returned poses cross the boundary;
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/// legacy quantity mutations are deliberately ignored. Does not certify geometric safety or rotation compliance.
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/// </summary>
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public sealed class LegacyPlateNesterAdapter : IPlateNester
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{
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private readonly Func<Plate, NestEngineBase> engineFactory;
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public LegacyPlateNesterAdapter(Func<Plate, NestEngineBase> engineFactory)
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{
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ArgumentNullException.ThrowIfNull(engineFactory);
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this.engineFactory = engineFactory;
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}
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/// <summary>Minimal built-in selection; never reads or changes NestEngineRegistry.</summary>
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public static IPlateNester Create(string strategy) => strategy == "Default"
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? new LegacyPlateNesterAdapter(plate => new DefaultNestEngine(plate))
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: throw new NotSupportedException($"Unknown placement strategy: {strategy}.");
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public PlateCandidate Place(PlatePlacementRequest request, IProgress<NestJobProgress> progress = null,
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CancellationToken token = default)
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{
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ArgumentNullException.ThrowIfNull(request);
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token.ThrowIfCancellationRequested();
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var plate = DrawingJobMapper.CreatePlate(request.Stock);
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var items = new List<NestItem>();
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var identities = new Dictionary<Drawing, string>(ReferenceEqualityComparer.Instance);
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foreach (var requirement in request.Parts)
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{
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var drawing = DrawingJobMapper.CreateDrawing(requirement);
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identities.Add(drawing, requirement.Id);
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items.Add(new NestItem
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{
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Drawing = drawing,
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Quantity = requirement.Quantity,
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Priority = requirement.Priority,
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StepAngle = DrawingJobMapper.LegacyStep(requirement.Rotation),
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RotationStart = requirement.Rotation.Start,
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RotationEnd = requirement.Rotation.End
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});
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}
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var engine = engineFactory(plate) ?? throw new InvalidOperationException("Legacy engine factory returned null.");
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var parts = engine.Nest(items, null, token);
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token.ThrowIfCancellationRequested();
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if (parts == null) throw new InvalidOperationException("Legacy engine returned null placements.");
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var placements = new List<NestJobPlacement>();
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foreach (var part in parts)
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{
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if (part?.BaseDrawing == null || !identities.TryGetValue(part.BaseDrawing, out var id))
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throw new InvalidOperationException("Legacy placement does not reference a private requirement drawing.");
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placements.Add(new NestJobPlacement(id, 0, part.Location.X, part.Location.Y, part.Rotation));
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}
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return new PlateCandidate(placements);
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}
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}
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