forked from 1b-agent/fieldcraft-upstream
jyvikoandClaude Opus 5.5
b73a3bb976
fieldcraft_mesh::mirror reflects a region's tet4, tet10, wedge6, hex8 and hex20 elements across a plane. The copies list their nodes in reflected order (corners swapped, mid-side nodes following their edges), so every copy is right-handed; reflected_faces and reflected_edges give the copy's face and edge over the same nodes. Copies of the nodes on the plane are merged with the originals through join::merge_coincident, so the region and its image form one conforming mesh. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01UhhZMBTviDQxZvwnyP89fo