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OneCAD-Simulation/tests/oracle/patch-hex20-reduced/fixture.json
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85ba526663 mesh: one transfinite interpolation for mapped hex and mesh.block; stable oracle report (#52)
* mesh: one transfinite interpolation for mapped hex and mesh.block; stable oracle report

mesh.block's lattice is now built from the structured hex mesher's
transfinite code: faces by quad::transfinite_grid, the interior by the new
quad::transfinite_volume (Gordon-Thiel, blended by the block's graded
parameters), which hex::mapped now calls too. 2D patches are the
transfinite_grid of their sides. Edge curves return their corners exactly.

Oracle: a zero-reference quantity (rounding noise) keeps its absolute
tolerance as its fixture band, and docs/oracle.md shows such noise and
relative errors inside the fixture band as bounds, so the report no longer
changes with the order of floating-point operations (it failed the
'docs/oracle.md is current' check on main after #50). Scordelis-Lo moved by
1.4e-9 relative (an ill-conditioned thin shell of solids: sub-ulp node
changes) and is re-blessed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm

* simplify: shared face filling and lattice index; faces blended like the volume; exact ends for every edge

quad::transfinite_faces fills a block's six faces (with a per-face hook
that hex::mapped uses to project onto its B-rep faces) and
quad::lattice_index fixes the lattice layout for all three users.
transfinite_grid_blended blends faces by the block's graded parameters, so
faces and interior use one parametrisation and mesh.block reproduces its
earlier Gordon-Hall lattice (the Scordelis-Lo fixture is back to its
blessed value). Straight edges also return their corners exactly.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm

---------

Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-13 22:50:20 -04:00

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{
"note": "ModelCraft's accepted results for this case, written by `cargo xtask oracle --bless`. A result outside its band fails CI.",
"values": {
"sxx": {
"band": 1.0000000000000003e-9,
"value": 1.0000000000000002
},
"sxy": {
"band": 1e-9,
"value": -3.738573156315291e-16
},
"syy": {
"band": 2.0000000000000026e-9,
"value": 2.0000000000000027
},
"szz": {
"band": 3.000000000000002e-9,
"value": 3.0000000000000018
},
"ux": {
"band": 2.5000000000000005e-13,
"value": -0.0002499999999999936
},
"uy": {
"band": 1.0000000000000002e-12,
"value": 0.0009999999999999957
},
"uz": {
"band": 2.25e-12,
"value": 0.0022499999999999964
}
}
}