Item.Create builds the circle packer's view of a part: the minimum
enclosing circle of its outward-flattened perimeter (padded by the
layout check's flattening allowance), its fill ratio, the offset back
to the part origin, and the largest disc clear of material inside its
cutouts. Gears and sprockets pack by their tip circle around their
bore; the fill ratio lets a future engine decide which jobs to bid on
instead of a yes/no round test.
Adds MinimumEnclosingCircle (Welzl, repeatable order) to Core geometry.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ajandClaude Opus 5.5
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