fcb418f119
- threemf_stream reads Bambu Studio / OrcaSlicer project metadata: plates
(name, objects, preview images), filaments, and each part's type and
extruder. Placements now record which build item and part they belong to.
- convert_3mf.py leaves out negative/modifier/support parts, colours each
part by its filament (a part's extruder 0 falls back to its object's), and
takes --plate N. Geometry is still stored once per (part, colour).
- New threemf_info.py lists plates and filaments without loading geometry
and extracts plate preview images; served via /api/{files,entries}/:id/project.
- /glb?plate=N builds and caches a per-plate preview. Cached GLB names carry
a converter version, so previews made before colours are rebuilt.
- Model detail: plate chips (with the slicer's plate images) under the
viewer — multi-plate projects open on plate 1 — plus "All plates", and a
Filaments section with colour swatches.
- Fingerprints leave out negative/modifier parts, so a project matches the
model it prints.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
53 lines
1.5 KiB
Python
53 lines
1.5 KiB
Python
#!/usr/bin/env python3
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"""Measure mesh files for geometry fingerprints (duplicate detection).
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Usage: fingerprint.py <file> [<file> ...]
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Prints one JSON line per file: {path, fp: {faces, area, volume, extents}} or {path, error}.
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Multi-object files (e.g. 3MF projects) are measured as one combined mesh.
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"""
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import sys
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import json
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import trimesh
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import threemf_stream
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def measure(path):
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if path.lower().endswith(".3mf"):
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# Leave out negative/modifier/support parts, so a project matches the
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# model it prints (e.g. its STL export).
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meshes, placements = threemf_stream.load(path)
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placements = threemf_stream.printable(threemf_stream.read_project(path), placements)
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stats = threemf_stream.measure(meshes, placements)
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if not stats["faces"]:
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raise ValueError("no geometry found")
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return stats
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mesh = trimesh.load(path, force="mesh")
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if mesh is None or len(mesh.faces) == 0:
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raise ValueError("no geometry found")
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try:
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volume = abs(float(mesh.volume))
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except Exception:
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volume = 0.0
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return {
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"faces": int(len(mesh.faces)),
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"area": float(mesh.area),
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"volume": volume,
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"extents": [float(x) for x in mesh.extents],
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}
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def main():
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for path in sys.argv[1:]:
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try:
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out = {"path": path, "fp": measure(path)}
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except Exception as exc:
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out = {"path": path, "error": str(exc)[:200]}
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print(json.dumps(out), flush=True)
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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