NestPlateStock carries the outline; its usable material (less obstacles,
eroded by the largest edge spacing) becomes the FrontierPacker's
PackBoundary. The layout check and the runner's candidate validation
reject a part outside the outline or over an obstacle, area-based cost
and the area budget use the material area, salvage credits nothing, and
Rectangles, Circles, FlatBar and the fill strategies place nothing on it.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Add PackBoundary: a closed outline with obstacles, bound to one
NoFitCache, whose per-orientation inner-fit polygon (the clearance
footprint inside the outline eroded by the other half clearance) is
computed once and shared. FrontierPacker takes an optional boundary and
seeds each region from that inner fit, drops orientations with no fit
and subtracts obstacle no-fit polygons like clamp ones; without a
boundary it is unchanged, so rectangular stock layouts are identical.
CutoutLatticeFill.InnerFit now calls the shared kernel with the same
Clipper operations, so lattice results are unchanged. The engine's
strategy variants are internal so a cutout proposal can reuse them.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
ajandClaude Fable 5.1