* claim: #9715
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Assemblies: mass, centre of mass and inertia per occurrence and rigid group (#9715)
assembly.mass_properties (and Session::mass_properties) gives, for every
occurrence and every rigidly-joined group, mass (kg), centre of mass (mm) and
the inertia tensor about it in world and frame axes (kg mm2), the input
the multibody dynamics work needs. Bodies are measured as Properties
measures them (kernel volume and centre, mesh gyration), once per body,
then moved by each placement and combined by the parallel-axis theorem.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* claim: #8095
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Properties: moment of inertia, principal axes and first moments of a part or assembly (#8095)
component.properties and occurrence.properties report each closed body's
inertia tensor about its centre of mass, and in total the tensor about the
total centre of mass (world axes, g·mm²), its principal moments and axes,
the first moments, and with `about: [x, y, z]` the tensor about any point.
The tensor comes from each body's welded export mesh, tessellated once per
body, scaled to the measured mass and turned by each placement; bodies add
by parallel axes. The maths is a new crates/geom inertia module.
The Properties window shows the first moments, the tensor, the principal
moments and axes, and the view marks the centre of mass with the principal
axes while it is open. Inspect → Measure → Properties now opens that window
(it ran the command and showed nothing).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Properties: Copy matrix, and the whole design's card titled just Properties (#8095)
Copy matrix, under the tensor, puts it on the clipboard as three lines of
tab-separated values at full precision, in the units shown. The card for
the whole design is titled Properties; one opened on a component,
placement or bodies keeps its name.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Properties: measure beside the window, so a large assembly doesn't freeze it (#8095)
Properties ran on the window thread: 18 s on a 144-body design, with the
window answering nothing meanwhile (#5203). In the desktop app the card now
measures on a copy of the session on a worker, the way #4614 made agents'
measures work, says "Measuring…" until the reply is in, and Close drops it.
A quick measure still shows at once; headless, tests and the web measure in
place.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
PaddleStroke