43 lines
3.6 KiB
Markdown
43 lines
3.6 KiB
Markdown
# Web FreeCAD BitBybit
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FreeCAD-aligned web CAD frontend baseline for the BitBybit runtime boundary.
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本机断网开发、资源同步、校验和恢复入口见 [离线资源库说明](docs/offline-development.zh-CN.md)。
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## Current scope
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- React + Vite frontend shell
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- Three.js `0.185.1` is pinned for the internal Viewport Adapter; React does not import Three.js directly.
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- FreeCAD-style application menus, workbench navigation, Combo View, Task Dock, viewport and Report view
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- Machine-readable workbench and command manifest in `src/freecadManifest.ts`
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- Chinese implementation plan in `docs/web-cad-implementation-plan.zh-CN.md`
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- Full 34-module FreeCAD 1.1.1 scope, Bitbybit/OCCT source-build track and executable task ledger in [docs/freecad-complete-parity-backlog.zh-CN.md](docs/freecad-complete-parity-backlog.zh-CN.md)
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- Executable reference-oracle and R0-R9 delivery order in [docs/freecad-reference-execution-roadmap.zh-CN.md](docs/freecad-reference-execution-roadmap.zh-CN.md)
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- Detailed owner lanes, 83-task WBS, dependencies and gates in [docs/freecad-full-parity-execution-wbs.zh-CN.md](docs/freecad-full-parity-execution-wbs.zh-CN.md)
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- Reproducible 34-module source inventory in [config/freecad-source-inventory.json](config/freecad-source-inventory.json), generated and checked with `./npmw run generate:freecad-inventory` and `./npmw run check:freecad-inventory`
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- Source-traceable TypeId/property candidate inventory in [config/freecad-type-property-inventory.json](config/freecad-type-property-inventory.json), checked with `./npmw run check:freecad-type-properties`
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- Locked FreeCAD 1.1.1 planegcs WASM subset with Dedicated Worker verification for line/circle/curve constraints, SnellsLaw, Ellipse InternalAlignment helpers and clamped cubic B-spline Weight
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The current milestone is a facade-first integration slice. Part Design document transactions and history are executable in the mock domain adapter; the internal SQLite WASM + OPFS Persistence Worker, schema and in-memory fallback are bundled behind `facade.project`. FreeCAD/OCCT geometry, solver behavior, FCStd interoperability and full workbench semantics remain staged behind the documented P3-P7 gates.
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## Development
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```bash
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./npmw install
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./npmw run dev
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```
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The repository uses a project-local, checksum-verified Node.js `22.23.2` runtime and npm `10.9.8`. The wrapper restores it from the local resource library first, or downloads it when online, into the ignored `.runtime/` directory and never changes `/usr/bin/node`; this removes the engine warning caused by running npm with an older system Node. `./nodew` runs the same pinned Node directly. See [docs/project-runtime.zh-CN.md](docs/project-runtime.zh-CN.md) for recovery and CI rules.
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Build verification:
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```bash
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./npmw run verify
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```
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The locked FreeCAD `1.1.1` source build and desktop-oracle replay workflow is documented in [docs/freecad-baseline-and-golden.zh-CN.md](docs/freecad-baseline-and-golden.zh-CN.md). All project Node commands in that workflow use `./npmw`.
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Geometry work follows a Bitbybit-first policy. Existing Bitbybit OCCT Worker, modeling, IO, triangulation and cache APIs are reused first; missing capabilities may be built from locked Bitbybit/OCCT sources as an Emscripten WASM provider behind the Facade. Source commits, patches, ABI, SBOM, hashes and FreeCAD differential fixtures are required before a capability can be promoted.
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The SQLite OPFS worker requires cross-origin isolation headers. Vite dev and preview apply `Cross-Origin-Opener-Policy: same-origin` and `Cross-Origin-Embedder-Policy: require-corp`; deployments must preserve them.
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