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fix(cutting): emit open contours raw instead of applying lead-in/lead-out

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Open (non-closed) shapes like scribe lines or partial cuts don't have
a meaningful pierce point or closing segment, so applying lead-in/out
would produce invalid toolpaths. Skip the lead-in/out logic and emit
them as raw contours in both Apply and ApplySingle paths.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
AJ Isaacs
2026-04-12 22:37:56 -04:00
parent 838a247ef9
commit a3ae61d993
1 changed files with 21 additions and 5 deletions
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26
OpenNest.Core/CNC/CuttingStrategy/ContourCuttingStrategy.cs
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@@ -69,9 +69,17 @@ namespace OpenNest.CNC.CuttingStrategy
EmitScribeContours(result, scribeEntities);
foreach (var entry in cutoutEntries)
EmitContour(result, entry.Shape, entry.Point, entry.Entity);
{
if (!entry.Shape.IsClosed())
EmitRawContour(result, entry.Shape);
else
EmitContour(result, entry.Shape, entry.Point, entry.Entity);
}
EmitContour(result, profile.Perimeter, perimeterPt, perimeterEntity, ContourType.External);
if (!profile.Perimeter.IsClosed())
EmitRawContour(result, profile.Perimeter);
else
EmitContour(result, profile.Perimeter, perimeterPt, perimeterEntity, ContourType.External);
result.Mode = Mode.Incremental;
@@ -99,10 +107,14 @@ namespace OpenNest.CNC.CuttingStrategy
// Find the target shape that contains the clicked entity
var (targetShape, matchedEntity) = FindTargetShape(profile, point, entity);
// Emit cutouts — only the target gets lead-in/out
// Emit cutouts — only the target gets lead-in/out (skip open contours)
foreach (var cutout in profile.Cutouts)
{
if (cutout == targetShape)
if (!cutout.IsClosed())
{
EmitRawContour(result, cutout);
}
else if (cutout == targetShape)
{
var ct = DetectContourType(cutout);
EmitContour(result, cutout, point, matchedEntity, ct);
@@ -114,7 +126,11 @@ namespace OpenNest.CNC.CuttingStrategy
}
// Emit perimeter
if (profile.Perimeter == targetShape)
if (!profile.Perimeter.IsClosed())
{
EmitRawContour(result, profile.Perimeter);
}
else if (profile.Perimeter == targetShape)
{
EmitContour(result, profile.Perimeter, point, matchedEntity, ContourType.External);
}