woodshop/tests
rob 391bbcb3f9 Real butt-joint geometry (faces, not centerlines)
Boards now connect like real lumber: B's end butts flush against A's surface,
offset from A's centerline by A's cross-section half-extent in B's approach
direction (width/thickness, whichever B faces). Previously B's center landed on
A's centerline, so boards interpenetrated and shared centerlines.

- Added Part.local_frame() (length/width/thickness world axes via composed
  rotation matrices, matching geometry/viewer).
- join() computes the surface-contact offset; handles perpendicular T/L joints
  and vertical legs (leg base butts the rail face).
- Tests: butt joint meets surface not centerline; example sentence updated;
  vertical-leg join still correct. 45 passing.

Default alignment is B centered on A at the attach point. Not yet: joinery cuts
and flush-outer-face alignment options.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-05-29 02:31:20 -03:00
..
test_cutlist.py Add 3D orientation, richer operations, and cut list 2026-05-29 01:42:33 -03:00
test_driver.py Harden command parsing (review fix) 2026-05-29 01:55:12 -03:00
test_scene.py Real butt-joint geometry (faces, not centerlines) 2026-05-29 02:31:20 -03:00