* fix(kernel): name the zero-thickness rim when a shell can't open beside a round
Shelling a body through a face that a convex round meets tangentially, with
the round at least as large as the thickness, puts the cavity wall through
the rim where the round meets the open face. Both shell strategies then fail
and the first one's generic error ("a corner whose faces don't meet the same
way after the move") was reported. The shell now says why and what to change.
Successful shells are unchanged.
Found by fuzz seed 33, which reaches this case now that a disc's two edges can
be rounded to half its thickness.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TWc1smHYwTSVrVc8SNvS44
* fix(kernel): loop fillet as tall as its wall uses the wall up
Rounding a loop with a radius equal to the height of its walls was refused
("the blend is taller than the walls"): r = 2 on the top edge of a 2 mm
disc failed while 1.999 worked. When every wall seam ends exactly where the
wall-side rail would, the walls are consumed: their far edges become the
blend's rails and the walls and seams are removed. Walls used up only in
part, and radii past the limit, are still refused.
Refs #190
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TWc1smHYwTSVrVc8SNvS44
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: bherbruck <brennen.herbruck@gmail.com>
Fillets (local, loop, rolling ball, corner, variable, chord), chamfers
(cutters, local corners, loops, two sides), shell, draft, offset faces,
split face/body, delete face, patch/copy/stitch/trim/extend and
transforms record their history over [body] while they build: faces
rebuilt from the body's, blends in place of edges (corner patches in
place of the edges at the corner), shell walls as offsets, edges as
pieces of the body's or where two faces meet. Multi-step operations
compose each step. The push-face offset fallback now has history, and
the bore union composes its narrowed tool.
A reflection reorders a body's edges, so transforms now match edges by
identity (mirrored copies reported the wrong edges).
Refs #136
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J53sR6gEaVt56soFDpTck8
