Model - Nesting#

type NestOptions
// = {
    parts: NestPartSpec[];
    stock: {
        width: number;
        height: number;
    };
    spacing: number;
    seed: number;
    /** One part's evaluated (already drafting-layer-stamped) flat pattern —
     *  for a linear part this is its centerline + section, not an outline. */
    resolvePart: (key: string) => Entity[];
    partMeta: (key: string) => NestPartMeta | undefined;
    /** mm — stock bar length for the 1D bin-packer. Absent/0 = no linear
     *  parts are placed (they're simply skipped, same fail-soft spirit as
     *  the 2D path's own `!stock.width` early return). */
    stockLength?: number;
    /** mm — saw-blade kerf consumed between adjacent cuts on the same bar. */
    kerfWidth?: number;
}