jyviko c3f99d0e90 solidcraft-smlib: ssi hands out SMLib's intersection curves exactly, as schema 4 B-splines ...

ssi::intersect took a sample count and gave each intersection curve as
samples: its 3D points, its UV points on each surface and the surfaces at
them. The fork's 947eedc hands out the curves SMLib's intersectors return,
exactly (smlib_ssi_curve_nurbs: degree, knots, control points, weights), and
drops the samples; SMLIB_ABI_VERSION 4.

SsiCurve now holds the 3D curve as a schema 4 Curve::Spline or
Curve::RationalSpline (rational where a weight is not 1) and each UV curve
the method returned as a Curve2, with SMLib's type, deviation estimate and
the 3D curve's natural interval; ssi::intersect loses its sample count. A
curve SMLib does not hold as a B-spline is Error::Unsupported (it is never
approximated); a B-spline whose knot count is not points + degree + 1 is an
argument error.

The SSI corpus scorer (tests/ssi_corpus.rs) samples the exact curves itself
where the corpus runner samples them: 4001 parameters spread evenly over the
3D curve's natural interval and over each UV curve's interval, the surfaces
evaluated at the UV samples, samples that cannot be evaluated dropped. The
unit test plane_through_sphere_is_a_circle evaluates the exact curve.

Nothing else used the samples. SMLIB_REV: the fork at 947eedc.

clippy -p solidcraft-smlib --all-targets, with and without native: clean.
The corpus gate (smlib_global_intersect_at_1e_6) is not run here.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt

2026-10-27 02:28:49 -04:00

..

ssi_score

smlib tests: SSI corpus scorer and its parity with score.py

2026-10-27 02:28:46 -04:00

ssi_corpus.rs

solidcraft-smlib: ssi hands out SMLib's intersection curves exactly, as schema 4 B-splines

2026-10-27 02:28:49 -04:00