A colour or freeze set in the host on an xref's layers (xref|layer) was lost on save:
the saved view dropped every xref-dependent symbol, layers included, and the DWG save goes
through the same DXF tags. The reader already keeps such layers when the xref loads.
The xref's layers are now written as xref-dependent LAYER records (DXF Reference, LAYER
group 70: 16 externally dependent, 32 resolved), as AutoCAD does with VISRETAIN = 1, with
the xref linetypes they use (same flags): without them a DWG falls back to Continuous.
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
A client could only learn the top-level methods from docs/control-protocol.md;
help, methods, ping and the like all came back as "unknown method". The app
and the headless backend now answer control.methods with each method they
serve ({method, params, description}) and ping with "pong", and an unknown
method's error points to control.methods. A test keeps the app's list equal
to the doc table and checks every listed method is dispatched.
`--control` as the last argument read `args.next()` as None and reset the
port taken from CADCRAFT_CONTROL_PORT, without logging anything, so
`CADCRAFT_CONTROL_PORT=47321 cadcraft --control` started no control
channel. A bare `--control` now keeps the variable's port and logs a
warning either way; a port given on the command line still wins. The
precedence is documented in docs/control-protocol.md.
* Geometry: spline arc length converges on tight bends, so LENGTHEN shortens to the target (fixes#705)
* Geometry: cap adaptive spline quadrature (depth 10, 1e-10 relative) so a hostile spline can't make LENGTHEN slow
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
A command started in one drawing kept running after a programmatic NEW or OPEN made another
drawing current. Finishing it there recorded an undo step holding the first drawing, so undo in
the new drawing brought the other drawing back. Session::new_drawing and open_drawing now end a
running command before the new drawing becomes current, as CLOSE and document.switch already do
and as starting NEW from the command line did: its undo step lands in the drawing it started in.
With no command running, nothing changes (the previous drawing keeps its selection).
The planner marked a drawing as autosaved when it dispatched the write, and the background
worker only logged a failure. An unchanged drawing whose write failed was then never written
again, even once the folder became writable. The worker now reports whether the file was
written; on a failure (or a thread that could not be spawned) the drawing is no longer counted as
autosaved, so the next plan restarts its SAVETIME clock and tries again.
