Commit Graph

1 Commits

Author SHA1 Message Date
Jukka Aho 2693bdf545 feat(assembly): Add nodal assembly data structures
- NodeToElementsMap: Inverse connectivity (node → elements touching it)
- ElementNodeInfo: Tracks element ID and local node index
- get_node_spider() finds all nodes coupling with given node
- NodalStiffnessContribution: Storage for 3×3 blocks per node
- matrix_vector_product_nodal() computes K_i*u at single node
- print_spider_info() debugging diagnostics
- 234 lines: Infrastructure for node-by-node assembly
2025-11-12 01:01:45 +02:00