otko/AGENTS.md
smillmorel 8f7bc3cf4f fix: keep the Plotly camera and axis ranges through data updates
Plotly.react resets any scene attribute the incoming layout omits, so every
selection change snapped the camera back to the default and re-fit the
ranges - the pinned framing was meaningless. Data-only pushes now pass
preserveView and html.py merges the live camera and axis ranges into the
incoming layout; only an explicit re-frame sends computed framing.

Also fixes the ordering bug where the framing flag was consumed before the
not-ready early return, which dropped the very first framing on the floor
(show_project runs before loadFinished).

Verified in the browser: user orbit + zoom survive selection and working
plane updates, while reset_camera re-frames. Regression-tested headlessly
by asserting the emitted preserveView flag.
2026-09-16 20:05:35 -04:00

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# AGENTS.md — otko
Pre-alpha SAP2000-style desktop GUI for OpenSeesPy. Python 3.10+; **Windows requires 3.12+** (`openseespywin==3.8.0.0` has no 3.11 wheel). Solver pinned: `openseespy==3.8.0.0`.
## Install
```bash
pip install -e ".[gui,dev]" # desktop: Qt + PyVista + plotly.js backend + dev tools
pip install -e . # headless: core + services only, no Qt (scripts, notebooks, web backends)
python -m otko # launch GUI (src/otko/app.py:run)
```
`scipy`/`pandas` in `[gui]` extras are phantom deps (not imported as of 2026-06) — do not add imports expecting them.
## Architecture (enforced in review — see PR template)
Strict one-way MVVM + services: `views → viewmodels → services → core`.
- `core/` (entities: `project.py`, `geometry/`, `materials/`, `sections/`, `loads/`, `analysis/`, `catalog/`): stdlib + numpy + pydantic only. **No Qt, no openseespy. Period.**
- `services/` (`opensees_runner.py`, `persistence.py`, `results.py`, ...): may use core + h5py + openseespy. **No Qt.**
- `views/`: PySide6/pyvistaqt only. **No direct `import openseespy`** — go through a service.
- `views/canvas3d/` (**PyVista/VTK**, default) and `views/canvas_plotly/` (plotly.js in a `QWebEngineView`) are two backends for the same central 3D view. Both satisfy the `CanvasBackend` protocol in `views/canvas_base.py`, share one `SelectionState` owned by `MainWindow`, and are swapped live via **Options → Canvas Backend** (persisted in `QSettings` under `canvas/backend`). `MainWindow._activate_canvas` keeps both widgets in a `QStackedWidget` — never destroy a canvas mid-session (VTK leaves dangling make-current callbacks). Backend-specific gaps are declared by `CanvasCapabilities` (e.g. Plotly has no force-diagram overlay or video export yet); gate UI on `canvas.capabilities`, never on the backend name. `canvas_plotly/trace_builder.py` is pure (no Qt, no pyvista) and unit-tested headless.
- `views/canvas3d/style.py` (`RenderStyle`) is the single source of truth for colours/sizes on **both** backends; renderers must read it rather than hard-coding a colour. The `STYLE_FIELDS` subset is user-editable via **Options → Plot Properties…** (`views/dialogs/plot_properties.py`), previews live through `MainWindow.set_plot_style(..., persist=False)`, and persists as JSON in `QSettings` under `plot/props`.
- `viewmodels/` bridges core↔Qt (signals, `QUndoStack`); `commands/` holds `QUndoCommand` subclasses.
- Rules: public functions need type hints + docstring; new domain entities go through Pydantic validation; ops >50 ms run off the GUI thread (`AnalysisWorker` in QThread, cancel via `isInterruptionRequested()`, results cross threads as lightweight `ResultsHandle` to HDF5).
Runner emits OpenSeesPy commands in fixed order (`docs/architecture.md`): `wipe → model → node → fix → material → section → geomTransf → element → timeSeries → pattern/load → recorder → system/numberer/... → analyze`. Never reorder.
## Verify (in this order)
```bash
ruff check src tests
ruff format src tests # line-length 100, E501 ignored
mypy src/otko/core src/otko/services
pytest -m "not slow" # CI gate: lint → this, on 3.10/3.11/3.12 × ubuntu/windows/macos
```
Focused runs: `pytest tests/unit` (pure logic, ms), `pytest tests/gui -k <name>` (pytest-qt, needs display), `pytest tests/integration -k <name>` (real OpenSeesPy runs). Single test: `pytest tests/unit/test_project.py::test_name -q`. Markers: `gui`, `slow`. Linux GUI tests need `xvfb-run -a pytest ...` plus system Qt libs (see `ci.yml` apt list).
Notes: `tests/conftest.py` auto-`ops.wipe()`s the OpenSees domain between tests (lazy import so core tests stay Qt/OpenSees-free). Coverage omits `views/`. Commit style: Conventional Commits (`feat:`, `fix:`, ...). `pre-commit install` runs ruff + mypy (mypy hook scoped to `core|services|viewmodels`).
## Git & Forgejo
Remote is a self-hosted Forgejo, SSH-only:
```bash
git remote add origin ssh://git@smill-home.ddns.net/smill/otko.git
```
- Web UI / HTTPS clone: `https://smill-home.ddns.net/forgejo/smill/otko.git` (note the `/forgejo` subpath — SSH URLs don't have it).
- Forgejo SSH runs through the system sshd on **port 22** (`SSH_PORT = 22` in the server's `app.ini`). If the site ever advertises a `:2222` SSH URL again, that config regressed — push/pull with port 22 anyway and flag it.
- Auth is by SSH key (Forgejo → Settings → SSH Keys). Test: `ssh -T git@smill-home.ddns.net` should answer `Hi there, <user>! ... Forgejo does not provide shell access.`
- Default branch `main`. Work on short-lived branches (`fix/<topic>`, `docs/<topic>`), open a PR against `main`. Never commit directly to `main` from an agent session.
- Repo root is `otko/` itself. (On the dev laptop there is also an empty, commit-less parent repo at `Sync/coding/` — ignore it; all git work happens inside `otko/`.)
## Examples & persistence
- `examples/*.py` are source of truth; `examples/*.osmodel` are generated artifacts (checked in). Never hand-edit `.osmodel` — change the script and regen: `python examples/cantilever.py` (each script saves, reloads, asserts clean round-trip).
- Projects persist as single Pydantic-validated JSON `.osmodel` (diffable); analysis output goes to `*.osresults.h5` (HDF5, one group per case).
- Quick smoke: open `examples/cantilever.osmodel` → run `Tip-Load` → M3 peaks 50 kN·m at fixed end.
## Cloned Dependency Source
Read-only dependency source repositories are available under
`.slim/clonedeps/repos/` for inspection. Do not edit these clones. The
structured manifest is `.slim/clonedeps.json`.
- `.slim/clonedeps/repos/yexiang92__opstool/` — `yexiang92/opstool` at `v1.0.26`; the OpenSeesPy
pre/post-processor whose PyVista and Plotly visualization settings
(`opstool/vis/{pyvista,plotly}/plot_utils.py`, `plot_resp_base.py`, `vis_model.py`) are the
reference for otko's canvas look-and-feel. GPL-3.0, and GPLv3 §13 explicitly permits combining
it with otko's AGPL-3.0. Any code actually ported from it must keep the opstool copyright notice
and record that it was modified (GPLv3 §5a/b) — add that entry to `NOTICE` when the port lands.