Collision stays hand-rolled because it is the reference for a future GPU
kernel, but its inputs now come from Clipper region offsets. Pin down that
lines-only, round-join, 1e-4-precision polygons keep the contact and
part-in-part semantics: a neighbor inside a collapsed slot, a part inside
a hole that shrank by the spacing, and zero-spacing edge contact.
Document which steps are per-polygon preparation to cache and upload once,
and which are per-pair kernel-shaped work.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Its callers now take Clipper region offsets, which never produce the
self-intersections it patched over (and it only caught proper crossings,
so spikes survived it anyway). Polygon.OffsetEntity was its last caller;
the override is required by Entity but has no callers, so it becomes a
Clipper miter offset that keeps the Left/Right semantics and the input
winding. FindCrossing, SplitAtCrossing, SegmentsIntersect and the static
CalculateArea helper go with it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Offsetting entity by entity leaves spikes and inverted loops wherever a
feature is narrower than the spacing, and RemoveSelfIntersections only
catches proper crossings. ClipperBridge flattens a ShapeProfile into one
region (perimeter positive, cutouts negative) and inflates it in a single
Clipper pass with round joins, so narrow features collapse and holes that
close up disappear.
Conservative mode circumscribes perimeter arcs, inscribes cutout arcs and
pads the inflation by the chord tolerance, so the result never
under-estimates the spacing. It replaces the circumscribed-polygon
guarantee the BestFit/PartBoundary callers rely on.
Clipper stays confined to CPU preparation whose output is cached; the
per-pair Collision path remains hand-rolled for GPU portability.
LayoutPart's display offset now goes through the bridge.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Repo-wide sweep with the pinned CSharpier 1.3.0 tool. Whitespace and
line-wrapping only; OpenNest.Engine.Tests (109) and OpenNest.IO.Tests
pass after reformat, full solution builds 0 errors.
Added .csharpierignore so csproj/config XML keeps its existing layout
(CSharpier's XML wrapping churns attributes with zero benefit).
Formatting is now enforceable: dotnet csharpier check . passes.
GeometrySimplifier/ArcFit now fit arcs that pass exactly through run
endpoints while balancing tangency error between trusted and estimated
directions, fixing arcs that previously bulged or broke tangent
continuity at fillet/compound-curve junctions.
GravographIS post processor gains per-layer (engrave/cut) tool passes
via a new GravographISPostConfig, so ENGRAVE/ETCH-tagged geometry runs
as a separate scribe pass with its own feed/depth and an operator
pause before the cut pass (spring-floated spindle needs a tool swap).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Arcs with sweep angles smaller than Tolerance.Epsilon were treated as
full circles by IsBetweenRad's shortcut check, causing UpdateBounds to
expand the bounding box to Center ± Radius. This made zoom-to-fit zoom
out far beyond the actual part extents.
Skip cardinal angle expansion when sweep is near-zero so the bounding
box uses only the arc's start/end points.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Ellipses with extrusion direction Z=-1 had their parametric direction
reversed, causing the curve to appear mirrored. Negate start/end
parameters when Normal.Z < 0 to correct the minor-axis traversal.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Circle.ToPoints() always generated CCW points regardless of the Rotation
property, so reversing a circle contour in the CAD converter had no effect.
Now negates the step angle when Rotation is CW, matching Arc.ToPoints behavior.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Consolidated two stateless classes into one unified API: Dxf.Import(),
Dxf.GetGeometry(), Dxf.ExportPlate(), Dxf.ExportProgram(). Export
state moved into a private ExportContext. Removed bool+out pattern
from GetGeometry in favor of returning empty list on failure.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Spline import now uses SplineConverter (arc-based) so the configurable
precision parameter is obsolete. Removed the setting from the options
dialog, DxfImporter property, Settings files, and all callsites.
Hardcoded 200 as the sampling density for the intermediate point
evaluation that feeds into SplineConverter.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Box constructor and derived properties (Right, Top, Center, Translate, Offset)
had Width and Length swapped — Length is X axis, Width is Y axis. Corrected
across Core geometry, plate bounding box, rectangle packing, fill algorithms,
tests, and UI renderers.
Added FillSpiral with center remnant detection and recursive FillBest on
the gap between the 4 spiral quadrants. RectFill.FillBest now compares
spiral+center vs full best-fit fairly. BestCombination returns a
CombinationResult record instead of out params.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Adds immutable VariableDefinition record to OpenNest.CNC with name,
expression, resolved value, inline, and global flags. Fixes namespace
collision in PatternTilerTests and PolygonHelperTests caused by the new
OpenNest.Tests.CNC namespace.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Move 43 root-level test files into feature-specific subdirectories
mirroring the main codebase structure: Geometry, Fill, BestFit, CutOffs,
CuttingStrategy, Engine, IO. Update namespaces to match folder paths.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
ajandClaude Opus 5.5