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feat: add option to round lead-in angles for circle holes

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Snaps lead-in angles on ArcCircle contours to a configurable
increment (default 5°), reducing unique hole variations from
infinite to 72 max. Rounding happens upstream in EmitContour
so the PlateView and post output stay in sync.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
AJ Isaacs
2026-04-09 12:41:33 -04:00
parent 3481764416
commit de6877ac48
4 changed files with 62 additions and 1 deletions
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16
OpenNest.Core/CNC/CuttingStrategy/ContourCuttingStrategy.cs
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@@ -255,7 +255,23 @@ namespace OpenNest.CNC.CuttingStrategy
var leadOut = SelectLeadOut(contourType);
if (contourType == ContourType.ArcCircle && entity is Circle circle)
{
if (Parameters.RoundLeadInAngles && Parameters.LeadInAngleIncrement > 0)
{
var increment = Angle.ToRadians(Parameters.LeadInAngleIncrement);
normal = System.Math.Round(normal / increment) * increment;
normal = Angle.NormalizeRad(normal);
// Recompute contour start point on the circle at the rounded angle.
// For ArcCircle, normal points inward (toward center), so outward = normal - PI.
var outwardAngle = normal - System.Math.PI;
point = new Vector(
circle.Center.X + circle.Radius * System.Math.Cos(outwardAngle),
circle.Center.Y + circle.Radius * System.Math.Sin(outwardAngle));
}
leadIn = ClampLeadInForCircle(leadIn, circle, point, normal);
}
program.Codes.AddRange(leadIn.Generate(point, normal, winding));

3
OpenNest.Core/CNC/CuttingStrategy/CuttingParameters.cs
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@@ -23,6 +23,9 @@ namespace OpenNest.CNC.CuttingStrategy
public double PierceClearance { get; set; } = 0.0625;
public bool RoundLeadInAngles { get; set; }
public double LeadInAngleIncrement { get; set; } = 5.0;
public double AutoTabMinSize { get; set; }
public double AutoTabMaxSize { get; set; }