bherbruckandClaude Opus 5.5
2db9e66048
Free-form strips (a curved-edge fillet's B-spline bands round a saddle) vary their normal too much along the loop for the loop-direction test, and the hinted nearest-parameter search drifted on them: false 'runs clockwise' reports on faces that round-trip exactly. The check now covers cylinders, cones, spheres and tori (closed surfaces, where a loop read the wrong way silently gives the rest of the surface); volume checks cover the rest. It still flags all 8 sphere corners of a fillet box with their sense flipped. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL