17-loft's expected values were FreeCAD's (OpenCASCADE's Part.makeLoft), which runs each side of
the square to its quarter of the circle at uniform angle (arc length). That correspondence has
no exact rational B-spline form, and SolidCraft keeps its surfaces exact: its ruled loft runs
each side to one rational quarter of the circle's B-spline by their own parameters, 35080.7251
mm^3, 0.13% less (the oracle failed on volume and the second moments). The owner chose this
correspondence. The case is now worked out in tools/oracle-analytic/cases_basic.py: the section
area is quadratic in t with the loops' mixed area, so volume and centroid are closed forms of it
(the mixed area and the wall area by Gauss-Legendre on the exact rational arcs); its note says
why it differs from OpenCASCADE and gives that volume, and its `compare` leaves out the surface
check against OpenCASCADE's reference.stl. All its checks pass.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Thin Extrude builds walls of a set thickness along sketch curves, open chains and closed loops, with the wall centred, inside, outside or on both sides at two thicknesses. Saved under format 20 (thin on an Extrude); an extrude without thin saves as before. Closes#721.
The oracle no longer uses Fusion measurements. tests/oracle/<case>/ now holds the 76 recipes
(our own format, with recorded measurements and tool-specific fields removed) and an
expected.json per case:
- 55 analytic cases: closed-form values from tools/oracle-analytic/ (stdlib Python, formulas
in each case's "method").
- 21 FreeCAD cases: the same recipe built with FreeCAD's public scripting API by
tools/freecad-oracle/ (an external program, not a dependency), with a reference.stl for 20.
solvecraft-cli oracle compares body count, volume, area, centre of mass, bbox, face counts
where the geometry fixes them, and, against reference.stl, the sampled Hausdorff distance and
the principal moments (spatial.rs from #301). cargo xtask oracle reads tests/oracle, writes
docs/oracle.md with the source of each value, and supports known_failure marks for tracked
bugs. CI runs it on every PR; a manual workflow regenerates the FreeCAD values. step-corpus,
seam normalisation and the through-all emulation, which only existed to compare with Fusion,
are removed.
75/76 pass; 75-sm-bracket-holes is a known failure (#296).
Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT
Co-authored-by: bherbruck <bherbruck@herbrucks.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
jyvikoandClaude Opus 5.5
Lasse Lian
