forked from 1b-agent/fieldcraft-upstream
jyvikoandClaude Opus 5.5
e2266c692b
An I-beam cantilever from the corpus is opened, hex meshed, defined, solved and shown with von Mises contours and a swinging deformed shape, every step an MCP tool call bridged to the desktop app and every picture the MCP screenshot of the window; ffmpeg encodes the MP4 and GIF. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm
37 lines
2.0 KiB
Markdown
37 lines
2.0 KiB
Markdown
# Demo video
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`make.py` regenerates the README's demo, `docs/media/ibeam-analysis.mp4` and
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`docs/media/ibeam-analysis.gif`: an agent analyses an I-beam cantilever over MCP while the
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desktop app shows each step.
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```sh
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python3 tools/demo-video/make.py # build, run, encode into docs/media
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python3 tools/demo-video/make.py --no-build # with the release binaries already built
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python3 tools/demo-video/make.py --frames /tmp/f # also keep the captured pictures
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```
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Needs Python 3 (standard library only), a display for the app window (the pictures are drawn
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offscreen, so a locked screen is fine) and `ffmpeg` with libx264 on the `PATH` (or `FFMPEG`).
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It honours `CARGO_TARGET_DIR`.
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What it does:
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1. Builds `modelcraft`, `modelcraft-cli` and the testkit's `corpus` tool (release).
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2. Writes the corpus I-beam (`tests/corpus/i-beam`) as a `.solidcraft` design to a temporary
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folder with `corpus --part i-beam --design`.
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3. Starts the app with `--control PORT` and `modelcraft-cli mcp --connect 127.0.0.1:PORT`, and
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speaks MCP (JSON-RPC over stdio) to it. Every step is an MCP tool call: `open` the design,
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`mesh` (`hex_sweep`, 4 mm), `batch` (steel, a solid section, the root clamp, a kinematic
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coupling of the free end to a reference point loaded with 1000 N), `check_model`, `solve`
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(`static`), and `show_results` for the von Mises contours and the deformed shape, its `scale`
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stepped from 1 to 150 and back. Every picture is the MCP `screenshot` tool with
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`source: window` (the whole window drawn offscreen, `ui.capture`), turned to the `iso` or
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`right` view by its `view` argument.
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4. Encodes the pictures at 10 frames per second, each held for its stage, into the MP4 (H.264,
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1280 px) and the GIF (960 px, its own palette), and prints the tip deflection and the peak
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von Mises stress.
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The theme is the app's default (dark). Beam theory for the same beam gives a tip deflection of
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0.143 mm in bending plus about 0.034 mm in shear (0.177 mm) and a root bending stress of 45 MPa;
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the clamped root adds a local peak above that.
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