forked from 1b-agent/fieldcraft-upstream
57b4b2f4d2
* model: split nodes and elements into a mesh module (no behaviour change) Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * model: sets by geometry name, materials and units, sections, couplings, BCs, loads, steps and the check Sets bind to persistent geometry names through the mesh's geometry tags (element, element face/edge and node classification) and resolve against the current mesh, so they survive a remesh. Steps list their active loads and boundary conditions explicitly. Model::check names every missing or bad item; Model::resolve gives the writers' view. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * engine: model definition commands (sets, materials, sections, RPs, couplings, BCs, loads, steps, tags, check) Each definition has create/edit/delete with its model JSON form as parameters; model.step.activate and model.activity drive the explicit step table; mesh.tag records where the mesh lies on the geometry; model.check and model.set.resolve report against the current mesh. Hostile params run against an empty and a fully defined session. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: model definition in architecture and roadmap Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * model, engine: review cleanups Validated deserialization (a file replays through the checked methods), interned geometry tags by index, set resolution with tag bitsets and sorted vectors, one delete policy (a load or BC listed by a step is in use), shared helpers (context, remove_existing, step_mut, opt/req/name/listed), dead code removed, Resolved without a per-element section map. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * model: mesh-independent force distribution, tractions, stable reference point labels Force and moment on a set default to a total, split by consistent nodal weights over the set's faces (or equally over a node set); per_node is an explicit opt-in. Traction is force per area. resolve() expands them to nodal values for every writer and the solver. Reference points keep a stored node label taken from the top of the label range. 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]>
79 lines
6.4 KiB
Markdown
79 lines
6.4 KiB
Markdown
# Capability checklist (reference: Abaqus/CAE)
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What an analyst does in a full CAE pre-processor, grouped by milestone, with ModelCraft's status.
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Scope comes from the public documentation of Abaqus/CAE and public analyst discussion,
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described in our own words; nothing was taken from the product itself (AGENTS.md: no commercial
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products are run, no documentation text is copied). Status: **done**, **started**, **planned**.
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**HEX** marks items centred on hexahedral meshing, the core goal.
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## Where we aim to be better
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| # | Opportunity | Why analysts want it | ModelCraft approach |
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| 1 | Hex meshes without manual partitioning | Partitioning a part into sweepable cells by hand is the most cited chore | Sweep and mapped meshing with automatic decomposition that proposes SolidCraft splits (M5); octree all-hex for anything else (M6) |
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| 2 | Undo, redo, replay, crash recovery | No general undo; replay files are hard to reuse; corrupted model files | Every action is a journalled command with rollback |
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| 3 | Sets that survive changes | Sets and loads break when geometry regenerates or is remeshed | Sets bind to SolidCraft's persistent face, edge and body names and resolve after meshing (M3) |
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| 4 | An API that is not a bundled scripting runtime | Version breakage, slow scripts, geometry picked by position | JSON commands over CLI, control channel and MCP |
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| 5 | Located diagnostics | Generic error messages | Errors name the element, face or keyword; `mesh.quality` lists failing elements |
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| 6 | Lossless deck round trip | Unsupported keywords dropped on import | Deck readers keep unknown keywords and write them back (M9) |
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| 7 | Safe, diffable model files | Binary model databases that corrupt or lock to a version | Text `.modelcraft` model, atomic saves, autosave (M3) |
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| 8 | Geometry checked before meshing | Slivers and tiny faces fail late | Surface preparation reports defects with their location (M1) |
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| 9 | No size caps, any solver | Node limits in learning editions; one solver per tool | Free, open source, three deck formats |
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| 10 | Clear step history | Loads and BCs propagate between steps implicitly | An explicit step × load/BC table (M3) |
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## Checklist
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| Area | Capability | Milestone | HEX | Status |
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|---|---|---|---|---|
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| Geometry | Open SolidCraft designs, bodies, persistent face names, assemblies placed | M1 | | done |
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| Geometry | Face-tagged mesh import (3MF) | M1 | | done |
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| Geometry | Weld, closed/manifold/orientation and self-intersection checks, feature edges | M1 | yes | started |
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| Geometry | Partitions and datums as SolidCraft features (split body/face, construction planes) | M5 | yes | planned |
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| Geometry | Midsurface extraction for shells | M8 | | planned |
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| Mesh | Size field: global, per face and edge seeds, bias, curvature and proximity refinement | M2 | yes | planned |
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| Mesh | Free tet meshing (tet4, tet10 with mid-side nodes on the geometry) | M2 | | started |
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| Mesh | Quality metrics, certified validity, verify per set | M1–M2 | yes | done (metrics, gate) |
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| Mesh | 2D quad meshing of faces | M5 | yes | planned |
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| Mesh | Mapped hex of six-sided regions | M5 | yes | planned |
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| Mesh | Sweep hex (extrusions, revolutions) | M5 | yes | planned |
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| Mesh | Automatic decomposition into sweepable and mappable regions | M5 | yes | planned |
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| Mesh | Conforming interfaces, tet–hex transition with pyramids | M5 | yes | planned |
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| Mesh | Octree/grid-dual all-hex for any part | M6 | yes | planned |
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| Mesh | Hex-dominant by recombination; polycube | M6 | yes | planned |
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| Mesh | Smoothing, untangling, boundary padding, layers through thin walls | M6 | yes | planned |
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| Mesh | Mesh editing (move, merge, split, collapse, remesh region), imported orphan meshes | M6 | yes | started (node/element add/remove) |
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| Model | Sets and surfaces bound to geometry names | M3 | yes | done |
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| Model | Materials: elastic (isotropic, orthotropic), density, unit-system check | M3 | | done |
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| Model | Materials: plasticity, hyperelasticity, damage, thermal | M8 | | planned |
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| Model | Sections: solid, shell, beam profiles; assignment by set | M3 | | done |
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| Model | Composite layups, material orientations, continuum shells | M8 | yes | planned |
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| Model | Element formulation per region (integration, incompatible modes, hybrid) mapped per solver | M3 | yes | done (model; per-solver mapping with the deck writers) |
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| Model | Boundary conditions: fixed, displacement, symmetry | M3 | | done |
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| Model | Loads: force and moment, pressure, gravity, body force | M3 | | done |
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| Model | Reference points, kinematic and distributing coupling | M3 | | done |
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| Model | Steps: linear static, frequency; output presets | M3 | | done |
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| Model | Steps: nonlinear static, explicit dynamics, heat transfer; amplitudes | M7–M8 | | planned |
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| Interaction | Tie between non-matching meshes | M7 | | planned |
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| Interaction | Contact (general and pairs), friction, automatic pair detection | M7 | | planned |
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| Interaction | Bolt pretension, springs, point masses, connectors | M7 | | planned |
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| Decks | Abaqus input writer | M3 | | planned |
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| Decks | Nastran bulk data writer (SOL 101, 103) | M3 | | planned |
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| Decks | LS-DYNA keyword writer (implicit; explicit in M8) | M3 | | planned |
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| Decks | Readers keeping unknown keywords | M9 | | planned |
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| Solve | Own linear static and modal solver, verified against analytic solutions | M4 | yes | planned |
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| Results | Deformed shape, contours, mode shapes, probes, reaction sums | M4 | | planned |
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| Results | XY and path plots, cuts, display groups, free-body forces, animation | M9 | | planned |
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| Results | Readers for public result formats (Nastran OP2, LS-DYNA d3plot, Abaqus `.fil`) | M9 | | planned |
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| Results | Mesh convergence studies | M9 | | planned |
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| App | Desktop viewport, model tree, commands, control channel | continuous | | done |
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| App | Undo/redo on the command journal, autosave, `.modelcraft` file | M3 | | planned |
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| App | MCP server, browser build | continuous | | planned |
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## Deck notes for the writers
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- Node order: the model stores Abaqus/VTK order. Nastran orders the mid-side nodes of 20-node hexes
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and 15-node wedges differently; LS-DYNA takes tets and wedges as degenerate hexes and triangles
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as degenerate quads. Every mapping is tested by the sign of the element Jacobian after writing.
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- Each format's field widths, continuation rules, number forms and label limits are respected by
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the writer and checked by golden-file tests on our own examples.
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