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feat(engine): add FillExtents scaffold with pair construction and column tiling

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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
AJ Isaacs
2026-03-18 00:45:55 -04:00
parent 6e30e24957
commit 7bc9f134f6
2 changed files with 278 additions and 0 deletions
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62
OpenNest.Tests/FillExtentsTests.cs Normal file
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using OpenNest.CNC;
using OpenNest.Geometry;
namespace OpenNest.Tests;
public class FillExtentsTests
{
private static Drawing MakeRightTriangle(double w, double h)
{
var pgm = new Program();
pgm.Codes.Add(new RapidMove(new Vector(0, 0)));
pgm.Codes.Add(new LinearMove(new Vector(w, 0)));
pgm.Codes.Add(new LinearMove(new Vector(0, h)));
pgm.Codes.Add(new LinearMove(new Vector(0, 0)));
return new Drawing("triangle", pgm);
}
private static Drawing MakeRect(double w, double h)
{
var pgm = new Program();
pgm.Codes.Add(new RapidMove(new Vector(0, 0)));
pgm.Codes.Add(new LinearMove(new Vector(w, 0)));
pgm.Codes.Add(new LinearMove(new Vector(w, h)));
pgm.Codes.Add(new LinearMove(new Vector(0, h)));
pgm.Codes.Add(new LinearMove(new Vector(0, 0)));
return new Drawing("rect", pgm);
}
[Fact]
public void Fill_Triangle_ReturnsPartsWithinWorkArea()
{
var workArea = new Box(0, 0, 120, 60);
var filler = new FillExtents(workArea, 0.5);
var drawing = MakeRightTriangle(10, 8);
var parts = filler.Fill(drawing);
Assert.NotNull(parts);
Assert.True(parts.Count > 0, "Should place at least one part");
foreach (var part in parts)
{
Assert.True(part.BoundingBox.Right <= workArea.Right + 0.01,
$"Part right edge {part.BoundingBox.Right} exceeds work area {workArea.Right}");
Assert.True(part.BoundingBox.Top <= workArea.Top + 0.01,
$"Part top edge {part.BoundingBox.Top} exceeds work area {workArea.Top}");
}
}
[Fact]
public void Fill_PartTooLarge_ReturnsEmpty()
{
var workArea = new Box(0, 0, 5, 5);
var filler = new FillExtents(workArea, 0.5);
var drawing = MakeRect(10, 10);
var parts = filler.Fill(drawing);
Assert.NotNull(parts);
Assert.Empty(parts);
}
}