forked from 1b-agent/fieldcraft-upstream
d8b3bb51e0
* mesh: element quality metrics and a certified Jacobian validity check Bernstein-form Jacobian determinants for tet4/tet10/wedge6/hex8/hex20, certified by bounds and subdivision (Johnen-Remacle-Geuzaine 2013); Shewchuk 2002 tet metrics, Knupp 2001 hex/wedge/quad metrics; quality report and the validity gate meshers run on their output. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * engine: mesh.quality command; model documents its node order mesh.quality reports certified validity, volume and per-metric statistics with fixed-range histograms. The model's ElementKind doc states the Abaqus/VTK node order and that deck code reorders formats like Nastran CHEXA20. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * quality: simplify after review; exact orient3d for tet4; gate on raw mesher arrays - tet4 validity from the exact orient3d of the input coordinates - validity_gate_elements takes (label, kind, coordinates) straight from a mesher - one Jacobian per solid; certify caches piece bounds; product weights precomputed - model::check_coordinates shared by set_node and quality; ElementKind is Ord - engine: shared labels() parameter parser Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <[email protected]> Co-authored-by: Claude Opus 5.5 <[email protected]>