Both walked the picked curve's display polyline: a point a third along an R10 sketch arc was
0.87 µm off (8.6603, 5). They now evaluate the path's exact curves by arc length: lines and arcs
in closed form, a free-form span at the parameter its arc-length integral reaches (body edges by
their record curves, 3D sketch curves by their arc, spline, line or linked exact curves; only a
curve that exists as points alone, an intersection edge or a projected curve, runs along them).
The arc's point is now within 1e-12 mm of (10 cos 30°, 5, 0).
A t outside 0…1 was clamped silently, which the contract (`t: expr, 0…1 along it`) does not
say: it is refused ("t is 1.5: a point along a path is 0 (its start) to 1 (its end) of the way
along it"). The construction cases grade the arc and line to 1e-9 mm, past-the-end is refused,
and a new case takes the middle of a symmetric cubic spline, (20, 7.5).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The shared core (crates/smlib, the grader, doc eval.rs, engine features.rs and the kernel's core)
is in PATHS-ALL; the new areas' copies of it are dropped, so an area reruns on its own files and the
core reruns them all. sheet-metal also watches the sheet commands, the sheet document and the DXF
writer. 116 commands a case now uses leave EXEMPT; 25 geometry commands are still to cover.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
jyviko