678 Commits

Author SHA1 Message Date
bherbruck 481687fff3 Modeled threads: the thread runs down to a flat face with no uncut block, so a nut can bottom out (#11782)
* Modeled threads: run down to a flat shoulder so a nut can bottom out

An external thread running the whole face stopped with its groove clear of
a shoulder, leaving up to a turn uncut above it. The groove now runs on past
the plane of the face's end and is trimmed there, so its root reaches the
shoulder at every angle and nothing past the plane is cut.

A shoulder rising back along the face keeps the square stop, as do internal
threads, tapers, runouts and lengths stopping short. Where the kernel refuses
the trimmed cut, the groove also keeps the square stop and the feature warns.

Closes #11610

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel ladder: record the thread cases that now reach their shoulder

Six cases gain the faces of the trimmed last turn; every other case is
unchanged apart from its timing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Thread at a shoulder: review fixes, and a test of the fallback

The shoulder check starts just off the face, as the free-end check does, so
a slope rising from the face counts. A groove the trim leaves nothing of now
falls back to the square stop too. A test forces the fallback and reads its
warning. The ladder's order and report go back to main's, changed only for
the cases this moved.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Thread at a shoulder: check all the radii the groove cuts

The check for a shoulder rising along the face looked a fixed distance out,
which falls short of the groove on an undersized shaft. It now covers the
groove's reach. A test reads how each kind of shoulder is classified.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Thread at a shoulder: test the trim that leaves nothing of the groove

The test now reaches the path where the half-space keeps nothing, which is
the one that must fall back to the square stop.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Thread at a shoulder: say so when the shoulder can't be checked

If the kernel can't make the rising-shoulder check, the groove keeps the square
stop as before, and the feature now warns that its last turn is left uncut.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-04 02:43:36 +00:00
jyviko f74c6605c4 Fillet: Mitre or Swept corners where two rounds meet (#11498)
* SMLib wrapper: a swept or mitred turn for constant rounds (Turn)

Brep::blend_dropping takes a Turn: Mitre (the default, as before) or Swept,
which sets solidcore's FilletSession::set_swept_turns before the corners are
made. A swept turn solidcore refuses at CreateFilletCorners comes back as
Error::TurnRefused with its reason and place (NoRoom at a concave side edge,
else CornerUnsupported). Swept is for Blend::Round only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel: fillet rounds turn in a mitre or swept (FilletTurn)

fillet_removing, fillet_max, fillet_max_each and fillet_each take a
FilletTurn and hand it to SMLib, through the reblend of earlier rounds at a
later corner too. A swept corner solidcore does not build is refused as
invalid input with its reason and place: no smaller radius builds it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Design: a fillet saves its turn, mitre (default) or swept

FeatureKind::Fillet gets `turn` (FilletTurn: mitre, the default and not
saved, or swept), one pending format file. Evaluation hands it to the kernel,
pattern copies included, and refuses a swept turn with a style, fit, corner
or setbacks the kernel's swept corner does not take (SWEPT_TAKES).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* solid.fillet: the turn parameter, and the command's input and output schemas

`turn: mitre|swept` on solid.fillet, refused when unknown or with options a
swept corner does not take. solid.fillet now has its contract (FilletParams)
and reply type (FilletResult), registered with checked!, and leaves
schema/unconverted.txt.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Fillet dialog: a Turns choice, Mitre or Swept

A Constant radius fillet's Turns row sends `turn: swept`; choosing a narrowed
radius or a curvature corner puts it back to Mitre, and Swept puts those back.
Its tooltip says what each does where two rounds turn round a corner edge.
New strings in a pending locale file (en, de, ja, ko, zh); glossary entry.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Fillet turn: the schema tests' fixes and the complete catalogs' strings

The no-contract example in the schema tests is solid.chamfer now that
solid.fillet has one; the reply test checks the mid-radii form against the
contract (solidcore refuses that law's corner yet, #430) instead of building
it; Arabic, Hebrew and Vietnamese, complete catalogs, get the new strings.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Fillet schema test: variable and spline forms checked against the contract

solidcore fails a variable round on a box edge at this pin (status 1001, as
variable_radius_on_a_box_edge), so the reply test checks those forms against
the contract instead of building them.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Fillet turn: the swept rig cases pass; the MCP no-contract example is solid.chamfer

cov-fillet-turn-swept-boss-base-r1 and
cov-fillet-turn-swept-pocket-sharp-corner-refused-r1 pass now that
solid.fillet takes `turn`: off the rig's known-failing list. The MCP bridge
test's example of a command without a contract was solid.fillet, which has
one now.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

---------

Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 20:36:00 -05:00
jyviko e12afd11cc Ellipse and spline extrudes make one wall; coplanar faces never lose their names to a budget (#11687)
* Planar sources: decide coplanar faces by support group, no budgets that drop sources

map_planar_sources kept two budgets, `metadata` (2 MB) and `identity_bytes`
(16 MB), charged by each face's source descriptor and by every extra
candidate on its plane. When one ran out, faces silently lost their source
and with it their persistent name: a 300-hole plate whose top a comb of
grooves cuts into 62 strips lost the cap source from strip ~47 on.

The budgets bounded the real cost: each result face looked at every
candidate on its plane, faces x candidates when many faces are coplanar.
The candidates are now grouped by support once (`same_support` against
each group's first plane, through the existing PlaneIndex), each group's
chosen source, ambiguity and inner flag decided once, and the faces
without a role together with the competing tool faces grouped the same
way. Each result face then looks up its plane's few groups. The decision
is the old one: blocked by an unknown or competing support, else the
first candidate on the plane unless another candidate there has a
different plane, source or role.

Work: grouping looks at each candidate's index window once per group
(each candidate is assigned on its group's first look), and each face
looks at the group representatives near its plane, so the planes looked
at grow with faces + candidates. A counter (`looked`) checks it: n
pieces of one cap and n faces on its plane take exactly 2n looks (n*n
before), 3n with n blocking supports.

Tests: the holed plate keeps the cap source on all 62 strips and the
bottom (fails on the old code: face 352 lost its source); the existing
planar source tests pass.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Extrude: an ellipse or a spline sketch curve sweeps one wall

An extruded ellipse had four side faces (`F2:side:e1#1` to `#4`), one
per conic quarter, and a spline one per span: the profile holds such a
curve as several exact segments and SMLib got each as its own curve.

The Extrude feature's builder (`extrude_whole_sides`) now takes a
`one_curve` test from the caller. Each run of free-form segments of one
degree that it says are one curve goes to SMLib as one B-spline: the
Béziers' control points in a row, knots repeated the degree times at
each joint, each span as long as keeps the speed through the joint the
same (so the curve is C1 there and SMLib makes one face over it, as it
would not over a C0 parametrisation), weights scaled to meet. Exact: the
same curve, reparametrised. A loop starts at a run's start, so no run
wraps round it. The wall's history lists every piece, and its
construction source is its first piece's (as joined collinear lines).

The document says which segments are one curve: ExactSketchCurves now
also holds each free-form sketch curve's exact segments
(`find_free_form`: a segment that is one of them, either way round), and
the profile roles use it, so the wall is named `side:<curve>` from its
history rather than by the curve nearest its mesh centre.

Saved designs rebuild with these walls renamed (`F2:side:e1#k` ->
`F2:side:e1`); accepted, no alias kept.

Tests: kernel `pieces_of_one_curve_extrude_into_one_wall` (an ellipse in
four conics is 3 faces, its volume pi a b h to 1e-6, the wall generated by
all four pieces; a 3-span spline closed by lines is one wall; the same
solid as a face per piece); doc
`an_extruded_ellipse_or_spline_is_one_wall_named_by_its_curve` (one
`F2:side:e1`, no piece names, the same names on a second build and after
reopening).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Tests: a tray's far rim name is checked on the exact B-rep face

The tray test took the point `sheet:...:rim.far` finds as right when it
lay within 1e-3 mm of the strip z = 30, 199 <= y <= 200: a slack sized to
the mesh. It now asserts on the face the name finds, on exact geometry:
the point's distance to that face's surface (FaceSurface::nearest) is
within rounding at the part's scale (1e-12 x its size), and the point is
inside the face's boundary, counted by crossings of its record edges
(each asserted to be a line, the rim being planar).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Tests: delete tests/naming/, the records no test reads since the naming corpus stopped comparing against them

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Viewport test: smooth wall joins drawn from eight G2 spline walls

The PR extrudes each spline or ellipse sketch curve as one wall, so the
offset-ellipse ring the test built has no joins between faces any more.
The test now extrudes a circle drawn as eight cubic splines: eight walls
meeting with one curvature along eight upright edges (24 edges in all).
It still checks that those joins are left out of the shaded view, drawn
in the wireframe and selectable as edges.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel ladder: 009 and 012 record the one-wall extrude (an extruded spline or ellipse sweeps one wall)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

---------

Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 21:27:14 +00:00
bherbruck 1e0bfca819 Release 0.40.0-rc.2 (#11751)
Bumps the version to 0.40.0-rc.2 and folds the pending format changes into format 50. A published pre-release no longer reaches the Flatpak feed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 15:35:34 -05:00
bherbruck c019e2555c Threads: a 12 mm hole now takes an M12 thread, and a modelled M12 builds in it (#11651)
* Threads: a 12 mm hole takes M12, and a modelled thread narrows a bore that is too wide (#11609)

Automatic sizing of a hole now takes the size whose nominal diameter the hole has (a 12 mm hole
is M12, not M14, the size whose tap drill is 12 mm); a hole near no nominal diameter is still
matched by tap drill. A modelled internal thread in a hole as wide as the thread or wider no
longer refuses with "too wide": the bore is filled in to the thread's minor diameter over the
threaded length and the groove cut there, and the feature's warning says so. A size that does
not fit the hole names the size that does.

A saved thread with no designation keeps the old rule through a pending format step, so an
existing design rebuilds with the size it had.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Threads: keep an old automatic size through edits; kernel-rig cases expect the narrowed bore (#11609)

Editing a saved automatic thread keeps `old_auto_size`, so it does not change size. The five
kernel-rig cases that expected a modelled thread in a hole as wide as the thread to be refused
now expect the narrowed bore, with the volume worked out analytically in each case. The thread
dialog's reopen pattern names the new field.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Thread dialog test: a 5 mm hole is suggested M5, its nominal size (#11609)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 17:09:27 +00:00
Mateusz Sych bfb32cd6e1 Align: move bodies by frames that follow sketch and model geometry (#6257) (#7123)
* claim: #6257

* Align: move bodies by frames that follow sketch and model geometry (#6257)

solid.align takes from_frame and to_frame: a joint origin on the model
(a face's or round end's centre, an edge's middle, a corner, found again
by name) or a sketch point or a sketch circle's, arc's or ellipse's
centre. Both are resolved on every evaluation, so the bodies follow
their target when it changes. An optional angle turns the bodies about
the target's direction after the move.

The Align dialog takes sketch points and curves as From and To, offers
the Joint Origin snap and an Angle row.

* Align frames: box the joint origin (clippy large_enum_variant)

* Align frames: every moved body on the frame's component, placed once

* Align frames: a sketch id's length in characters

* Align frames: the dialog test's sketch curve hit carries its point

* Align frames: the dialog test takes Vec2 from solidcore-record

---------

Co-authored-by: MateuszSychXpl <151755914+MateuszSychXpl@users.noreply.github.com>
2026-11-03 15:47:52 +00:00
jyviko dc38349cbf Layer split stage 1: the B-rep record, native body file and Vec/Plane come from solidcore-record (#11496)
* Kernel: the B-rep record and the native body file come from solidcore-record

SolidCraft's portable B-rep record (`solidcraft_geom::brep`: brep.rs, topology, history,
envelope, part, curve2) and the native body file (`solidcraft_kernel::native`: the tagged binary
codec and the container) move to solidcore's `solidcore-record` crate: geometry as data, with
structural validation and no maths (solidcore's docs/layers.md, stage 1). Every caller uses
`solidcore_record::brep` and `solidcore_record::native`; the old copies are deleted.

What computes from coordinates stays with the kernel, in geom's `brep`:
- `brep::check`: the record's geometric checks (orthonormal frames, non-degenerate planes,
  unit revolution axes, non-singular placements). `check::validate` and
  `check::validate_built` are the record's validation and these together, and every caller of
  `Brep::validate` uses them, so what is accepted is unchanged;
- `brep::label`: a surface's natural ranges (a cone's apex), `curve_interval`,
  `edge_curve_interval` and `form_turns`;
- `brep::pcurve::eval`: a pcurve's point;
- `geometry::check`, `placement::moved` and `split_edges` become functions on the record.

The kernel's native module keeps the conversion between a body and its saved record
(metadata.rs) and checks the decoded record's geometry. `native/analytic.rs`, which no module
declared, is deleted.

solidcore-record is pinned to its rev on solidcore's `layer-record` branch.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKMbMFSQU8tzRtoJhtT

* Geometry: Vec2, Vec3, Plane and the profile types come from solidcore-record

The plain data of vectors and points, sketch planes and planar profiles (`Seg2`, `Loop2`,
`Region2`) moves to `solidcore-record`, with its constants and component-wise operators only
(owner decision, solidcore layer split). Their geometry stays in geom as traits:
`Vec2Geom`, `Vec3Geom`, `PlaneGeom`, `Seg2Geom`, `Loop2Geom`, `Region2Geom`, `Seg2ArcFit`,
`Loop2ArcFit` and `Region2ArcFit`, in scope with `use solidcraft_geom::prelude::*`. Every caller
names the types from `solidcore_record`; geom no longer defines or re-exports them.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKMbMFSQU8tzRtoJhtT

* Kernel: pin solidcore-record to solidcore main f5e8e9a29

solidcore-record is merged on solidcore main (tangency-labs/solidcore#2519); its crate there is
identical to the rev pinned before but for its clippy configuration. The lock is regenerated
against the merged rev.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKMbMFSQU8tzRtoJhtT

---------

Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 09:04:26 -05:00
bherbruck 2aa7e3e51c Release 0.40.0-rc.1 (#11457)
Bumps the version to 0.40.0-rc.1 and folds the pending format changes into format 49. The default-layout header test now expects the room the version really takes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 00:59:58 -05:00
jyviko ac3e6e0105 A panic solidcore's guard catches reaches the engine as EngineError::Internal
smlib's run() catches a solidcore panic and replaces the kernel (kept: the app does not die
natively), returning Error::Internal; the kernel turned it into KernelError::Failed and the
engine into Other, so hostile_params_never_panic and the fuzzer no longer saw kernel panics.
Now the kernel's wrapper errors go through KernelError::smlib, which keeps Internal; a body the
wrapper could not take because of a panic is Internal too. A feature whose evaluation hit it
records the result as internal (not cached: the kernel was replaced), and the command that
made it, or any command whose kernel call returns it, fails with EngineError::Internal under
its own id. Crash reports mark a panic inside a solidcore call recovered (kernel::guarded), and
the crash test's kernel mode panics inside a solidcore call.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ
2026-11-02 21:39:02 -05:00
jyviko 440fdaed13 Kernel work runs on threads with solidcore's 8 MiB stack
solidcore's algorithms recurse (subdivision, intersection, filleting) and its README asks for
8 MiB, a native main thread's stack; Rust starts other threads with 2 MiB, and only the web
build set more. kernel::KERNEL_STACK is 8 MiB and kernel::kernel_thread a thread builder with it.
The kernel's parallel map runs on a pool of its own with that stack (on a worker of a pool
already, as in map_with_local_pools, it stays on that pool as before), the one-thread mesh pools
and map_on_threads' helpers have it, and so do the engine's interference worker and the
evaluator's plan-mesh thread. A test recurses 5 MiB deep on each.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ
2026-11-02 21:38:50 -05:00
brett19 8a730c6273 Fillets on solidcore: the largest size that fits is still the one the search builds; the kernel's names the edge
solidcore's fit is the largest size less a margin (34.99 where the L bracket's bend builds 35,
4.29 where #3435's ring builds 4.3), so the feature's search keeps naming the size, and solidcore's
is the answer only where the search finds none. The refusal keeps its words, "larger than the
faces beside its edges allow", with the edge after them.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz
2026-11-02 20:13:26 -05:00
brett19 881899bee1 Fillets on solidcore: a blend too large names the largest size that fits and its edge, from the kernel; the crossing-rails mixed corner is not supported (solidcore#2256)
solidcore sizes a blend it refuses as too large (the session's fit, SolidError::FilletRefused under
fillet_gn_section_generator). The smlib crate gives it as Error::TooLarge with the size, what it
sizes and a point halfway along its edge (an equal chamfer's ball radius turned back into its
distance); the kernel words it as the fillet feature's search does (largest_fit_note), and the
feature runs no search when the refusal names it. The 3x2 mixed corner whose rails cross, which
solidcore refuses (fillet_refuse_mixed_corner_crossing_rails), is not supported yet, citing
solidcore#2256.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz
2026-11-02 20:13:18 -05:00
jyviko ea772a0438 Merge develop into main: SolidCraft on the SMLib kernel (v1.1.0-alpha) (#11351)
* UI: rim and wall picking tests for a circle of arcs that is one wall

A circle drawn as two half arcs now extrudes to one full-turn wall with its
seam edge, and each rim is one closed edge (tangency-labs/smlib#67). The tests
keep their intent on that body: a rim clicked once is one item, measured and
highlighted whole and picked from either side; a wall picked either side of
its seam is the same surface, lit whole, and toggles off from the other side;
every face is its own patch.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Fillets: a later round at a corner where earlier rounds meet blends them again with it

The owner's ruling of 2026-10-30: a later fillet on an edge at a vertex where earlier
rounds already meet in a mitre makes the corner rounding all of them at once makes, one
smooth patch, the mitre gone. A body made by constant-radius rounds keeps what they were
made on and which edges they rounded at which radius; a later round reaching such a corner
blends the earlier rounds' edges (from the earliest of those meeting there on) with the new
edges in one SMLib blend of the body before them. The result's history is put over the body
the later round was given: an earlier round's face is that face trimmed anew (its name
kept), the corner patch and the new rounds are the later fillet's. A picked mitre seam has
no round of its own: it is refused unless a new edge of its radius meets it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: a later r3 round at an r2 mitre, through the Fillet feature, makes the all-at-once corner

Two box edges rounded r2 in one fillet, then the upright edge at their mitre r3 in a second
fillet (tangent chain on, so the seam comes with it): 10 faces, 7928.743041 mm³ as
fillet_radii of the box gives, the r2 rounds' names kept, the r3 round and the corner patch
the second fillet's.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel: a body's record of rounds goes with its history, and can be read back

The rounds that made a body are over the body its history is over: a new history (an
operation carrying a step's result back to its own operands) leaves the record out, so a
later round never reads one history against another body. Body::rounds gives the record and
Body::with_rounds_of takes one back, checked (edges of the body before them, a fillet's
radii, the body's history over that body), for a saved model to keep it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Model cache: a body made by rounds keeps them, so a later round blends them the same after opening

A design gave another body when opened from its model cache: the rounds a body was made of
lived only in memory, so a later round at their mitre was built sequentially (or refused, as
too large) after opening and blended with them when evaluated anew. The saved model now
records, per kernel body made by rounds, the body they were made on (a place in the bodies,
stored once though no state holds it) and the edges with their radii; reading it attaches
them back down each chain, and a thinned model keeps those bodies with the bodies made from
them. Model cache format 7.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: a corner patch of rounds 2/3/4 takes no more than the strips leave in its block

three_rounds_at_a_corner bounded the patch's extra cut at 3 mm³ beyond the strips, a figure
with no derivation; SMLib's all-at-once body at radii 2, 3, 4 takes 3.099 (V 7878.579574
against strips 7881.678). That body is the strips' outside the block its patch lies in: its
rounds are the strips' cylinders ending at a's section y = rc, b's x = 20 − rc and c's rails
where they meet a's and b's (the patch's four corners, now asserted), so the patch takes at
most what the strips leave in that block (11.86 at 2/2/3, 32.69 at 2/3/4). The lower bound is
that block; the upper one, at most the strips' volume, stays.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: the io crate's hand-built saved models list their rounds, as format 7 records do

Model cache format 7 (f3cf0c4f3) records a `rounds` list in every saved model, and reading one
without it is refused ("saved model: rounds"), as is a model without any of its other lists:
the states, the preview and the thinned model all came back empty. The io tests' saved_model
and timeline_model wrote format-6 records, so six tests (the round trip, the repeated part
stored once, and the four too-big-for-the-file cases) read nothing. Their bodies are none made
by rounds: the list is empty, and every expectation stays as it was.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* SMLib: pin eaa998a (tangency-labs/smlib#68, #69, #70)

Batch 4: drafts and loops, mitre corners, rim chamfers, rulings, tight box, stitch, point
classification, eased corners. Batch 5: a face's tight box divides its cells at the surface's
knots (thread boxes exact); a cylinder, cone, sphere or torus is extended along its own circles.
Batch 6: a revolution's extension closes its turn; a dropped point's foot is the converged one.
The C API is ABI 5 (smlib_blend_dropping and smlib_brep_classify_point are new; nothing existing
changed), so the binding expects 5.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: a strip's tangent and curvature run-offs are the distance long across the surface

SMLib measures an extension's distance across the surface (smlib_extend_sheet corrects
CreateExtendedSurface until the parameter line through the side's middle is that long), so each
run-off of the cylinder strip, swept 20 along z, adds 5 x 20: 10 pi/2 20 + 100 = 414.159 for
both. The parabola-length formula (418.18) was truck's.

Ruling d2 (2026-10-30).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel: one smooth angle, and a round too small to change the part is refused

The blend's tangent angle is the shaded view's half degree (smooth_edges::ANGLE), one value
for smooth. A constant round lies r (sec(d/2) - 1) inside the crease it replaces (about
r d^2/8); below the edge's tolerance it changes nothing and is refused before SMLib (which
answered SM_ERR_INVALID_INPUT), naming the smallest radius that rounds,
tolerance / (sec(d/2) - 1). d is the least turn along the edge
(tangent_edge::least_angle_along, at tangent_all_along's stations).

Ruling d3 (2026-10-30). The block's tolerance is 2e-5 mm, not 0.1 um: at 1 deg the smallest
radius is 0.526 mm, so R2 and R20 reach SMLib, which still calls an edge within 2 deg smooth
(SmEdge::GetBlendEdgeuse); that test is ignored until SMLib uses 0.5 deg.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Fillet rig: the knife-edge chamfers name SMLib's cause, a cusp's ball radius of 0

smlib_chamfer turns the distance into a ball radius d sqrt((1 - c)/(1 + c)), c the faces'
binormals' dot (capi chamfer_radius); at #851's cusp the binormals agree, the radius is 0 and
the call is SM_ERR_INVALID_INPUT before the fillet executive runs (gdb: chamfer_edges sees
radius 0; the dump's why is empty). SolidCraft hands every chamfer to SMLib, so the
ball-contact chord (the ball of radius d: 3.822 wide at d = 2, 159.2365 removed) is SMLib's to
build.

Ruling d4 (2026-10-30).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel tests: a corner round wider than its faces overflows and takes the corner's other edges

R21 on a 20 mm cube's edge builds (6107.529370, closed form, to 2e-12). With R5 on the
corner's other edges the R21 takes the faces they lie on, so the body is R21's alone; SMLib
fails that blend (status 1001, fillet error 4, Unable to Trim Rail Curve) and the test is
ignored until it builds. It replaces the refusal test that expected TooLarge.

Ruling d8 (2026-10-30).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: a 1 degree crease rounds, and the knife edge's chamfers build, on SMLib smlib-batch-4-rulings

With SMLib's smooth limit at half a degree (422e6f1) the 1 degree crease rounds R2 and R20
(the test is no longer ignored), and with a cusp's chamfer the ball of radius d (d231547) the
The 0.5 one stays, for its own cause (the chamfer face left apart from the body). Two corner
cases the same SMLib (replay/1.0.1 and those commits) builds come off too.

Needs SMLIB_REV at that SMLib once it is pushed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel, doc: an overflowing round goes first; an edge it removes is gone, and the fillet says so

SMLib (smlib-batch-4-rulings 0e83cca, SMLIB_ABI_VERSION 5) rounds the edges whose rounds overflow
their faces first and then what is left of the others; smlib_blend_dropping says which picks'
edges the overflow removed whole. The smlib crate binds it (Brep::blend_dropping), the kernel
returns those picks (fillet_removing), and a fillet notes them as its warning: "the edge at
(0, 0, 10) was removed by the larger round, so it is not rounded" (a 50 x 50 x 20 block, R21 on
its bottom front edge with the front left upright: the block is R21's alone, in closed form).

Ruling d8: [21, 5, 5] on a 20 cube builds as R21 alone (6107.529370); the test is no longer
ignored. R25 with R2 at a corner (blend_corner) builds the same way, R25's alone in closed form,
where it was refused. The rig's 1080 notched block outline at R8 builds now and comes off the
known-failing list.

Needs SMLIB_REV at that SMLib once it is pushed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Fillet rig: the knife edge's 0.5 chamfer builds

SMLib's trim took a fillet meeting its face at more than 78 degrees for one with no side
(smlib-batch-4-rulings 971e567); the chord of the knife edge's 0.5 chamfer meets the flat face at
81 degrees. The case comes off the known-failing list.

Needs SMLIB_REV at that SMLib once it is pushed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: a 15° tapered text builds, every letter grown, exact where its outline gives it

Owner ruling d6: the letter t of "tres long" was drafted inward by SMLib (its
loop's normal, summed from the cross products of its chords, pointed down;
fixed in SMLib). With the fix every letter grows, and the join builds at 3°
and 15° by the Round rule and by the default rule (tangent for spline
outlines), where before 15° was expected to be refused.

Exact where the outline derives it: a letter's section at height z is its
outline offset by e = z tan a, by the Round rule of area A + P e + C e² while
the offset trims nothing (Steiner; C half each loop's turning less
tan(t/2) - t/2 at each reflex corner), so the letter is
A h + P k h²/2 + C k² h³/3. Each extruded alone, the t at 3° and s, l and o
at 3° and 15° are checked to 1e-6 (SMLib measures them within 1.3e-9; its
mass properties integrate to 1e-8). The concave joins of r, n, g and e are
tighter than e already at 3° (their swallowtails trimmed: r 1.1e-3 under the
formula), the t's by 15° (9.9e-5 over), and on the block the letters grow
into each other, so the whole word is checked for what holds exactly: one
closed body with the block, and half-way up every point of each straight
letter's outline inside the solid (the t drafted inward failed that).

With SMLib's fix (smlib-batch-4-text-loops 82133b2).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: a sloped basin's mitred rim rounds are checked tangent along their contact lines

1080-fillet-sloped-basin-1-mm-rim-r0-5-4-edges asked G1 at every blend seam. Its front wall
leans 19 over 20 and the others 10 over 20, so at each rim corner the two mitred rounds meet the
sloped corner edge at different heights (0.155625 and 0.276393 below the top): the deeper round
runs on past the corner edge and is cut by the plane of the other's wall, a crease by
construction, the gap below the shallower round filled on that plane. The check now measures
the rounds' contact seams, on the top and on each wall, where the rounds are tangent. The
volume is unchanged.

With SMLib smlib-batch-4-mitre (1c15364): the case passes (V 144530.427946 against
144530.427909, 15 faces, sound); before it, only the four corner creases failed the check.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* smlib: Brep::classify_point says exactly where a point lies against a body

Binds the fork's smlib_brep_classify_point (SmBrep::Point3DClassify at the body's own zone
tolerance): inside, outside, or on the boundary within that tolerance of a face, an edge or a
vertex. A box and a cylinder just off its curved wall in measure's tests.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKQ2rEZvcXNQnhE3Sgs

* kernel: Body::classify_point decides inside, outside or on the boundary exactly

SMLib's point classification at the body's own tolerance, on the exact faces and edges, in
place of a mesh at a chord of 2e-3 of the body's size (about 0.4 mm on a 200 mm part). A point
within the tolerance of a face, edge or vertex is OnBoundary, never decided by a ray. A mesh
body's triangles are its exact shape: on them within the record's tolerance, else by ray
crossings. The kernel's own probes move to it; Body::contains goes once its last callers have.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKQ2rEZvcXNQnhE3Sgs

* doc: a hole decides whether it exits at its drill point's shoulder exactly

Material past the depth needs a body with the point inside, air before it needs every body to
have it outside; a point within a body's tolerance of the exit face is neither.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKQ2rEZvcXNQnhE3Sgs

* engine tests: probes ask for the exact point class

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKQ2rEZvcXNQnhE3Sgs

* ui, cli tests: probes ask for the exact point class

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKQ2rEZvcXNQnhE3Sgs

* kernel: Body::contains, the mesh test, is gone

Every caller asks Body::classify_point now.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NvoxKQ2rEZvcXNQnhE3Sgs

* kernel tests: the rim chamfers running off their rims build, on SMLib 737c392

chamfer_wider_than_sloped_basin_rim_builds and a_rim_loop_chamfer_running_off_its_rim_builds
waited for SMLib to build the cliff overflow (CloseRemovalRegion refused it,
SM_FILERR_NO_ROOM). The pinned SMLib builds it (eddf0ede4, bba9914b6): both pass on aarch64
Linux and are no longer ignored.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Fillet rig: the cases SMLib 737c392 builds come off the known-failing list

The gate on aarch64 Linux reports 16 fillet cases FIXED with the pinned SMLib: the sloped and
equal-slope basin rim chamfers and rounds past their rims (1080-*, 5835-*), the pocket rim
chamfer past the floor, and the three pocket rim rounds now mitred at the pocket's corners
(every-pocket-*). No other area's gate reports a case fixed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel: the re-blend's removed picks formatted as rustfmt lays them out

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel: blend_smlib laid out by the 2024 edition's rustfmt

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Skills: the tests skill's unit-test example stays under the 3600-character limit

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Fillet: the radius-too-large choice in plain nouns

"If too large: Stop and say so / Largest that fits / Narrow where needed"
becomes "Face limits: Exact radius / Largest radius / Narrowed radius", in
every language of the catalog, with the error and the tip that name them.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel: a round that would cut through its wall into a hollow is refused

The owner's rule of 2026-10-30: a round running past a rim of its faces
into open air builds; one whose section would remove material through to
a hollow behind its edge (a slit into the hollow, a cut through the part)
is refused as too large, so the fillet names the largest radius that fits.

Decided exactly in the section of a straight convex edge between planar
faces: the round's centre is at depth r below both planes, and it opens
where its arc uncovers a boundary point strictly inside the wedge with no
material beyond it toward the centre (the body's exact point
classification). Looked at: straight edges parallel to the round's (a
hollow's corner), cylinders about parallel axes (a rounded corner), and a
picked concave parallel edge's own round, which fills the corner.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Fillet rig: 1668's R7 past the inside corner is refused at 4 + 2 sqrt2

The round's centre (32 - r, 42 - r) leaves the hollow's corner (30, 40)
outside its circle, opening the wall, where sqrt2 (r - 2) = r: the case
expects the refusal naming 6.828. 2852's R30, refused naming 25.24, now
passes too: both come off the known-failing list.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* xtask: known-failing grades a nextest junit report against tests/KNOWN_FAILING_TESTS

`cargo xtask known-failing --junit PATH` reads nextest's junit (a file, or every .xml under a
directory, so all of a run's junit artifacts at once) and fails on a test that failed and the
list does not name, and on a listed test that passed (FIXED: take its line off, as the kernel
rig's gate does). A listed test that did not run is neither, since a pull request tests only the
packages it touches. The list has the rig's KNOWN_FAILING format (`<test> <cause>`, sorted, the
rig's own parser), with `<test>` nextest's `<binary id>::<test name>`; `cargo xtask lists`
checks it is sorted. The list starts empty.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* CI: the test jobs grade their junit against tests/KNOWN_FAILING_TESTS

Native Linux tests and the GPU path test shards no longer fail on any failed test: nextest's
"tests failed" exit (100) goes to `cargo xtask known-failing --junit`, which fails on a failure
the list does not name and on a listed test that passes. Any other nextest exit (a build error,
a bad filter) still fails the step at once. The tests skill says to list a failing test with its
cause, in place of ignoring it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: the known-failing list takes develop's 10 failing tests

Develop 38fd4a4f6 (CI run 41157648345, after the SMLib eaa998a pin) fails 10 cargo tests; each
is listed with the cause its failure message gives. Seven are SMLib refusals or results off
their derived volumes (fillet, chamfer and shell), the cli action matrix and naming corpus
among them; the two corner_g2 tests are the fitted G2 corner patch bulging past the box, which
the explicit G2 corner fixes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Reference tests: the eight cases that fail on SMLib eaa998a name their cause as known failures

Develop 38fd4a4f6's Reference tests fail 34, 35, 77, 78 and 81 (STEP export finds fillet edges
4.6e-5 to 6.1e-5 off their surfaces against 2e-5), 37 (the apex blend 0.193 off), 80 (the
taper-to-fit area) and 83 (thicken status 1001). Each expected.json names its cause in
known_failure, which the oracle already reads: a known failure that passes fails the job.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Sweep path: a curve of several pieces is turned round whole

The path chain oriented its first piece, not its first curve: a first curve
of several exact pieces (a fit spline, an ellipse, a projected free-form
edge) was never turned round, so a path whose next curve meets it at its
start was refused as "not connected end to end". The chain now orients
curve by curve: the first runs toward the second where they meet at one
end only (else from the end nearest the profile), each next one starts
where the previous ended, with one joint tolerance for both questions.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* SMLib: pin 2fc375f (tangency-labs/smlib#71, #72, #73)

A sheet's side is extended exactly the distance asked, or the call says it cannot (#71);
NVIDIA's -Werror build passes again (#72); a body splits by a sheet of several faces as it
is, smlib_split_body_by_sheet (#73). The C API is ABI 6 (the new entry), so the binding
expects 6.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel: Extend grows a surface of several faces face by face

A surface body of more than one face (a fit-point spline's spans extruded, #3830) was refused.
Each face with a picked edge is now extended alone by SMLib's extension of its surface, and the
faces are sewn back together, each the face it was. A side that lengthens onto a face meeting it
tangent takes that face along, past its edge continuing the picked one; across a crease the
neighbour grows only when its edge is picked too, otherwise the extension is refused. Faces whose
lengthened sides no longer meet are refused. Up to a target keeps the pieces every grown face
lies in.

3830's extensions now build; its split still fails (the tool point picks one span, and a face
tool cuts with that face's surface alone), so it stays on the list with that reason.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel: Split Body by a face of a smooth sheet cuts with the whole sheet

A face tool cut with that face's surface alone, so a face of a surface body made of spans joined
tangent (a fit-point spline extruded, #3830) cut nothing where its span ends inside the body.
Split Body by a face of a surface body now takes the faces joined to it tangentially (the exact
check Extend uses, within the one angle for smooth) and slices with them as they are, through
SMLib's slice by a sheet (smlib_split_body_by_sheet, tangency-labs/smlib 7a01f1b), its sides those
of the picked face. A sheet that only nicks the body cuts nothing, as before; a lone face, or a
face of a solid, still cuts with its surface extended.

3830 comes off the booleans list. Its answer counted the two halves of the cup and not the surface
that cut it, which stays as a body of its own (4879 removes its surface for that reason): three
bodies, the volume unchanged.

Needs SMLib 7a01f1b pinned (SMLIB_REV, prebuilt; its SMLIB_ABI_VERSION 6, which crates/smlib now expects) to link.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: a cylinder strip's run-offs are 100 pi + 100 to 1e-6, SMLib's exact area

The tangent and curvature run-offs of the quarter cylinder r 10 strip, 5 across the surface,
are its section swept 20 along z: exactly 10 pi/2 20 + 5 x 20 = 414.159265. measure is SMLib's
integration on the exact surface (1e-8), not a mesh, so the run-off check is 1e-6 relative and
the 'measured on meshes' notes go. Red until SMLib's extension is solved to its distance
(smlib-extend-converges 590d8a1): eaa998a's curvature run-off is 4.986 long, area 413.882.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* kernel: an extension SMLib cannot make exact says so, naming the length asked

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Sketch: a control spline can carry its own knots and weights

A sketch spline over control points was always the clamped uniform B-spline
over them, so a free-form edge whose knots are not evenly spaced (or whose
weights are not 1) could only come into a sketch as one curve per Bezier
span. A control spline now may save `nurbs`: its clamped knots and its
weights. Its points, polyline, exact pieces (one a knot span; conics for a
rational quadratic), the solver's distance and curvature, links, parallel
re-projection and inspect.sketch all read them; a loaded design's are
checked. One pending format file (spline-knots).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Sketch projection: a free-form edge comes in as the one exact spline it is

A projected spline edge of several Bezier spans came into the sketch as one
curve per span (#1508), so a G2 round's bottom edge was 16 curves and a path
naming the corner named one span of it (#3604). The kernel now reads such an
edge (a spline, or an elliptical arc of several spans) as the one clamped
B-spline it is over the edge's interval, its knots and weights its own, and
the sketch takes it as one control spline whose ends sit on the edge's
vertices. Planar regions still read edges span by span. The 3604 case builds
with its original path and leaves KNOWN_FAILING.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Fillet rig: blends past an outer rim of their faces build, on SMLib smlib-blends-past-rims

The owner's ruling: a round or chamfer that runs past an outer edge of its face into open air
builds, tangent where it has room and cut by the face beyond where it runs out. SMLib's branch
smlib-blends-past-rims builds them by the rig's analytic answers. Off the known-failing list:
the disc's rim past its 2 mm wall (190), the hole's top rim R12 past the plate's bottom, the
chamfer past the cylinder's bottom (2893), each closing on the wall continued as itself, and
926's chamfer ending on the boss's wall, which now builds to its answer too.

The sloped basins' R4 rim rounds (1080, mitred rounds built together where one overflows) build
to their analytic volumes (to 6e-9), and stay listed with that reason: their continuity check
(g1 at every blend seam) takes in the mitres' creases, G0 by the mitre ruling.
2893-chamfer-two-distances-elliptical-rim is graded as a solid (the owner: it builds) and stays
listed, waiting on the ruling on unequal chamfers along a rim whose angle varies.
5158-fillet-round-just-past-a-10mm-face stays listed with its cause found: the round passes
5e-6 under the box's top back edge, inside the body's tolerance.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Naming: test that a round of a round's end has no seam with that round's faces

The r1 round of a block's top edge, chained onto the end curve of the r2
round of its arc at a cylinder (rig fillets/every-block-cylinder-crease-
top-edge-after-arc-round-r1), ends where it runs into the cylinder. That
edge is no seam of the r1 round: the cylinder is a face of the r2 round,
not of the r1. blend_seams takes it for one today (the r2 round's name
F3:blend:F1:+z|F2:side holds a | of its own), and the rig reads it as a
contact seam at 60 degrees.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Naming: a blend's seams split its edge's name at the | between its two faces

A blend face's name holds the edge it replaced, <face>|<face>, and a side
of that edge can be a blend face whose own name holds a |. Whether a face
is a contact of the blend was read as the edge's name starting or ending
with the face's name next to a |, so the r2 round's own face F2:side read
as a contact of the r1 round F4:blend:F1:+y|F3:blend:F1:+z|F2:side. The
edge's name is now split into its two faces, a blend side read whole as
the two faces of its own edge.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Fillet rig: five refused blends build, off the known-failing list

926 (the chamfer ending on the boss's wall), the oblique cut's r0.1
round, the every-block r1 round (its seam with the cylinder is no
contact seam, after the blend_seams fix), the up-down squares' concave
chamfers and the shelled box's lip chamfer build with SMLib branch
smlib-blend-refusals (f8650b8 and later). 1207 r0.5 passes SMLib's check
on its rails now and stays listed for the next cause: its end rib on the
boss, which starts where the round and the boss are tangent.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the trough and the pocket whose floors fall to a drain build

SMLib now offsets a vertex where four faces meet (two walls and two facets at the floor's
corners, four facets at the drain) to two vertices joined by a new edge (tangency-labs/smlib
branch smlib-shells). Both volumes match their closed forms. The pocket's lining, hanging from
the top's rim round the pocket, stands apart from the slab's outer walls with the cavity rising
between them to the open top: the case says two shells in the one body.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the plate with a hole through its arc side shells open at its far end

SMLib's merge now intersects the offsets of an edge's faces where they could not be mated along
it (the hole's offset poking out through the half-round side's; tangency-labs/solidcore#1795):
one closed valid solid with the one face open, as the owner ruled.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the ring cut frame and the up-down join shell

SMLib's inset now keeps only the regions that are cavity, not the one the offsets close where
they overlap (between the two faces of #545's 0.5 floor, round the up-down join's two empty
octants). The frame's core under the recess is hollowed to a sealed void, so the case says two
shells and its closed form, 21044 mm³.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: #616's lid shells open at a rib's side, with the 0.15 lip

SMLib keeps the skirt top's offset where its loops wind the other way under the opening, the
cavity's floor (the owner's ruling of 2026-10-31: build it; a lip thinner than the wall is no
break-through).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Known failing tests: the action matrix's shells and chamfers as they fail with SMLib batch 7

The ring cut frame's and the up-down join's shells build now, and so do the up-down join's and
modern-plastic's chamfers (SMLib smlib-blend-refusals). #616's lid in the corpus still fails
SMLib's loop check, the shelled box shelled again at an inner wall is unchanged, and the
oblique cut of a cylinder's fillet still fails SmSurfOfRevolution's Test #7: 3 actions of 7.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* SMLib: pin 26cc451 (batch 7: rounds past a rim, blend refusals that build, shells)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Known failing tests: the shell after a cut whose end touches an arc side builds on SMLib batch 7

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Surface fair test: the energy falls strictly, the face moves, and the edges are read after the fair

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Sketch scaling test: the first dimension sets l1 to 40 and scales both joined rectangles about the origin

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Frames tests: a pick on a moved component or an instance removes the exact round and bore volumes

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Issue 1080 tests: the rib's rounds and the mitred corner chamfers and rounds have their exact volumes

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Engine tests: lip_after_boss checks each lip's and groove's exact band, hole_as_deep_as_the_plate each hole's exact bore

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Robustness tests: lip_after_boss and hole_as_deep_as_the_plate live once, in the engine's tests.rs with exact volumes

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Engine tests: loft_cut goes; loft_spacing's hollow elbow covers its section counts and more

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel loft test: the square-to-circle loft has the oracle's exact ruled volume, without printing

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tessellation lens test: the lens's triangles fill exactly the rhombus through its arcs' midpoints

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Pattern test: six chamfered holes take exactly five more holes' bore and chamfer rings

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel pocket floor fillet test: the corner rounds and the floor loop round add their exact volumes, by Pappus at the corners

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Shell regression: the saddle-corner shell opened on the top box's side has its exact volume

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* SMLib history test: every operand's order is the identity on its record's faces and edges

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Boolean history tests: the SMLib module's box-minus-sphere, box-minus-cylinder and box-union-box copies go; the top-level ones check more

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Modify history tests: shell, offset and thicken are one test each through the public API, with the volumes, refusals and history the SMLib copies checked

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Chamfer history test: the chamfer after each box cut is exactly one face on the painted block too

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Grid test: a pole side's face is the five triangles fanned from its one grid node, none degenerate

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel tests: the twelve ignored print-only debug tests and surveys go; coplanar_curved_booleans checks the flush-capped cylinder cuts and unions they printed

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel: the #883 board fixture generator is an example, not an ignored test

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* STEP import test: a seam sphere whose meridian stops short of the pole imports as the whole 2 mm ball

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Material tests: the nine copies in material_properties go; the persistence file checks the library copy's card and formats 20 and 21 in one loop

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Sample test: one loop checks every sample builds cleanly and without a panic; the robustness copy goes

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Known failing: the non-antipodal seam sphere import, refused for a loop of no (u, v) area

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: rustfmt the board fixture example and the coplanar asserts

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the two 3871 cone cases were byte-for-byte the 258 cases; the 258 cases carry their sources

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: a volume or area can be graded as a hand-derived range where analysis only bounds it

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: fillets keeps one case per regime; 17 replications of a case in the same regime go

The sloped-basin chamfers and rounds at 0.5 mm rims repeat the 1 mm rim's regimes; two of the
three knife-edge chamfer tips, the r1 and box r3 curvature corners, the r1 tangent corner, the
1 mm pocket-rim and hole-rim chamfers short of the floor and the r1 together-round each repeat a kept case's regime
and grades. #854 moves to 851-chamfer-arc-top-edge-9-5, and the cases that cited a dropped one
cite the kept one or state its formula.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: five cases outside fillets repeat a kept case's regime and go

A square cut is the slanted plane's ordinary crossing; the cam's half turn is the quarter turn's
contact at a symmetric angle; the r15 slab stands inside the same coincidence tolerance as the r10;
the 90 degree unfold and the 40 degree flange repeat the 72 degree and 20 degree cases' formulas.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 3243 rim and tooth join graded on its volume (rim plus the trimmed tooth less their 0.01 mm overlap)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 3782 emboss on a cylinder graded on its volume, area, faces and box (the wrapped 4 x 5 badge raised 1 mm)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 3604 G2 swept-tool cut graded on a volume range (filleted box minus the swept corner section)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 4505 coil joined through a cylinder wall graded on its volume, area and box (cylinder plus the wire's screw-swept segment outside r 76)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 4879 window cut through a thickened spline revolve graded on a volume range and its faces

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 4623 join of crossing pleated loft skins graded on its volume and box (both skins less their overlap)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 831 tapered glyph extrude graded on a volume range and box (the font's S drafted in by 10 deg)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 2357 ring of 90 cylinder segments graded on its volume and box (the segments less their 90 joint overlaps)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 4542 fluted wall joined on a revolved base graded on its volume and box (the base by Pappus plus the fit-spline ring)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 1985 and 2243 STEP-export enclosures graded on their volume and box (the outline less the cavity, plus gusset and standoffs)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: both 4092 loft, ribs and pad unions graded on their volume and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 1525 graded on its volume (the convex body's exact 2 mm inward offset), faces and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 1494 graded on its volume (box and cylinder less the 1 mm-offset cavity, sharp to rounded concave edges) and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 4492 graded on its box and a volume range (the face's 19 mm sweep added, within the block's sides)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 745 graded on its volume (the end moved 1 mm plus the spline boss's exact area), faces and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 4567 graded on its volume (the revolved spline less its revolved 2 mm offset), faces and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the up-down squares shell graded on its volume (the columns less the 0.346 mm-offset cavity, sharp to rounded concave edges) and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 545 graded on its volume (the frame less its 0.5 mm-offset cavity, sharp to rounded concave edges), its sealed pillar void and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the shell-again case graded on its volume (the shelled box less the 0.5 mm-offset cavity in its walls) and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the arc-sided plate shell graded on its volume (sharp to rounded at the hole's bottom), faces and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 616 graded on its volume (the lid less its 0.5 mm-offset cavity, sharp to rounded concave edges) and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 391 graded on its volume (the shelled housing, sharp to rounded at the flange, less the letters' 0.6 mm deboss) and box

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: shell/3576 was the ladder's drafted box with rounds shelled, recipe for recipe; the ladder case grades it and carries #3576 and #3573

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the two 851 chamfers of 2 graded on their volume (the cone's sweep, and its union with the front edge's prism)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the chamfered corner of the lipped shell graded on its volume (the chamfer's triangle through the wall)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the concave round into the peg's cylinder graded on a volume range (the torus it must add, the band it can't leave)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the two folded 72 degree trays graded on their volume (flat area x thickness) and the walls' reach

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the flanged rhombus graded on its volume (flat area x thickness, all four reliefs cut) and its walls' ends

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the base with two adjacent flanges and a hole graded on its volume (base, bends and panels folded)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the flange beside the ledge graded on a volume range (the flange's two readings of its length)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the two G0 window patches graded on the box the part they close keeps

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the hub's six swept grooves graded on its volume (the revolved hub less each tube's part inside it)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the cut mirrored loft graded on the box its sections pin

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the three modelled-thread joins and the fine M48 graded on their volume (the basic profile's groove, Pappus)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the oblique-cut round graded by its seams (tangent, not curvature-continuous); the flanged rhombus says what it tests (its reliefs stay apart at 60 mm)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 3841 is 168's rim touching its coin along a circle, and 4092's reduced recipe is its report less a flange clear of the failing join; the kept cases carry their sources

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the oblique-cut round keeps its old grade until the new blend algorithm lands

Its seams grade needs the continuity check to skip the body the round is not on. Fillet cases
wait for the new algorithm.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: 1985's enclosure is 78 x 77 (74 and 73 inside, 2 mm walls); its volume 38063.827 by hand

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the three spline walls' face counts wait for the one-wall decision; their volumes grade them

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* STEP import: a face bounded by seams alone runs its loop the other way, never turns over

A loop that uses each of its edges once each way (a whole torus within its tube and ring seams)
is the same set of uses run backwards, so it says nothing of the face's side. One written
clockwise in (u, v) turned the face over, against its same_sense: the torus came in inside out
with a warning. Such a loop is now reversed and the face keeps its side.

Test: seam_only_torus_imports_as_a_whole_ring, both orders of the two seams, volume 2π²Rr².

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* STEP import: a face bounded by a slit alone is the whole of its closed surface

A loop that runs out along a chain of edges and straight back (a meridian from a sphere's pole
stopping short of the other, out and back) encloses no (u, v) area, yet on a closed surface it
bounds all of it less a cut of none. The reader only read such a face when the slit already ran
pole to pole (and moved the sphere's frame onto it only then), so the 2 mm ball whose meridian
stops at 2.5 rad was refused for its empty loop.

The slit is now made the face's seams, so its loop bounds the surface's whole domain: on a
sphere, a revolution whose profile ends on its axis, or a spline closed round u that collapses
at both ends, the slit's meridian is run on to both poles, out and back (a sphere's frame put
on the slit first, whichever two points it joins); on a torus, the circle the slit lies along is
closed and the other circle through its start is the second seam. The seams on a sphere are its
own meridians (angle 0 on the equator), so their pcurves are exact lines on its form.

Tests: non_antipodal_seam_sphere_imports_as_a_whole_ball passes (its known-failing line goes);
seam_only_torus_imports_as_a_whole_ring adds a torus bounded by a slit along its tube.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Rig: the test-peg's concave arc and front top edge rounded together stay within the body's box

A new fillet case, report-fillet-concave-arc-and-front-top-edge-together-solver-residues:
the reported part's bar (with the sketch solver's residues) whose sides run tangent into the
cylinder, its concave arc and front top edge rounded r2 together. The plane of the front face
bounds the whole body, so every blend lies within the unblended body's exact box (SMLib's tight
box); graded to 4e-5, the corner patch's own tolerance. On SMLib 2fc375f the corner patch
stands 0.0374 out of the front face (box y min 0.0205): listed in KNOWN_FAILING.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Rig: the test-peg corner at r5 and r7

Two more fillet cases, the reported part's concave arc and front top edge rounded together at
r5 and r7, with the same exact-box containment check (graded to 4e-5, the corner patch's
tolerance). On SMLib 2fc375f the corner patch stands 0.128 (r5) and 0.230 (r7) out of the
bar's front face (box y min -0.0699 and -0.1723): listed in KNOWN_FAILING.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Rig: blends that end where their face runs tangent into another

Fifteen fillet cases on the test-peg's shape with clean numbers: a bar 40 x 16 x 10 whose far
end is a half disc R8, a disc R8 standing 10 on its top, joined, so the front face runs tangent
into the cylinder along x = 40 and the front top edge (convex) meets the concave arc of the top
tangentially there. Each blend ends on a face tangent to the one it rolls on.

- Rounds: both edges together at r2 and r5; one after the other in either order at r2, and at
  r1.5 and r3; the front edge alone as a curvature round, whose end on the cylinder is a
  semicubical cusp. The containment invariant (the unblended body's exact box, to 4e-5) and
  G1 seams, or the analytic volume where the blend has a closed section.
- Chamfers: the front edge alone and the concave arc alone (analytic volumes: the section along
  x up to the wall, the cone's spandrel ring clipped by the sides), both together, and one after
  the other (1 then 2).
- STEP: the peg written to STEP and read back, its front edge rounded (analytic) and both edges
  rounded together.
- A cone: the peg drafted 5 deg, whose front face runs tangent into a cone along a generator,
  its front edge alone and both edges together.

The quadratures are tanh-sinh, converged to 1e-13; SMLib's own volumes of the passing analytic
cases agree to 4e-9. A sphere is left out: a plane meets a sphere tangentially at a point, not
along a seam, so it is not this ending.

On SMLib 2fc375f eight fail, listed in KNOWN_FAILING: every chamfer that ends tangent (status
1001, SmFilletNx1Corner), the two rounds together (the corner patch 0.0374 at r2 and 0.128 at r5
out of the front face, and the rounds meeting with normals 180 degrees apart where their
contact lines on the top cross), the same on the STEP-read peg (status 1001) and on the drafted
peg (its corner refused as unsupported).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Rig: fillet corners graded curvature-continuous, the default to be

Six fillet cases that pick their edges with no type, so they take the fillet's default, which the
owner has ruled is to be curvature-continuous (G2) at every corner, with circular rounds kept as
an option. Each grades every seam of the rounds and of the corner patch G2, on one valid body:

- an oblique convex corner (a block drafted 15 deg);
- a four-edge and a five-edge apex corner (pyramids lofted to a point);
- a pocket's concave corner;
- a mixed corner (a step: one concave edge, two convex);
- a corner beside a cylinder (the top corner of a half cylinder).

All six fail on SMLib 2fc375f, listed in KNOWN_FAILING: today's default is the circular round,
whose seams jump in curvature by 1/r. On the five-edge apex the corner patch also meets two
rounds at 8.45 degrees (G0).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Rig: the test-peg's front chamfer builds

With the SMLib fork's smlib-tangent-ends (a rail's end on its side edge is the rail/edge
crossing), report-peg-front-chamfer-d2 passes. Its line leaves KNOWN_FAILING, for the pin that
carries that fix.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Rig: the curvature-continuous corner cases pick the curvature fillet

The six corner cases added in 3a854104a took the fillet's default type, on the premise that the
default would become curvature-continuous. The default stays the circular round, so each case
now asks for the curvature fillet itself (type curvature: curvature-continuous sections and
corner patches) and keeps its grading: every seam of the rounds and of the corner patch G2, one
valid body. They are renamed from cov-fillet-g2-default-* to cov-fillet-g2-*.

The oblique three-edge corner (a block drafted 15 deg) and the pocket corner pass. Four fail, as
KNOWN_FAILING now says:

- the corner beside a cylinder: the curvature fillet builds its sections only between planar
  faces;
- the four- and five-edge apex corners: refused because the default setback is shorter than
  where the rounds' contact lines meet (3.90 and 3.51 mm from the apex);
- the mixed corner: SMLib sets back a corner only where its edges are all convex or all
  concave.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Rig: the test-peg's concave chamfer, alone and after the front chamfer, builds

With SMLib's tangent end as an event of the fillet's trace (blend-end-event 6d73e4f), the
concave chamfer's rail on the cylinder ends where it crosses the seam along which the front
face runs tangent into the cylinder, continued past the vertex, and its end rib on the front
face is built from there. report-peg-concave-chamfer-d2 and
report-peg-front-chamfer-d1-then-concave-chamfer-d2 pass and leave KNOWN_FAILING. The two
chamfers together still fail, now at the mixed-convexity corner where they meet: its line says
so. Rig against SMLib 0cc48bd: no area regresses (963/993 pass, 961 on a87c502), ladder 168/168,
kernel lib only its listed failures.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: constant rounds of the exact classes, and a tee's round

A plane cutting a cylinder or a cone at an angle, a sphere or a cone coaxial with the other face, a
cone and a cylinder touching one ball, two pipes touching at a point: their rounds' centre lines
are rational, so the rounds are rational surfaces of degrees fixed by the construction ((4, 2),
(2, 2) revolved, (6, 2), (12, 2)). The tee's centre line is not rational; its round is graded on
its volume. Volumes from the divergence theorem over the exact pieces, at rel 1e-6. The six that
SMLib 0cc48bd traces are listed in KNOWN_FAILING with what they come out as.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the exact-class rounds pass on SMLib's classified exact rounds

The rounds now come as the rational surfaces their classes give, closed ones as two faces split
at their seams, the touching pipes' as four: one splines entry a face, each of the class's degrees.
Their KNOWN_FAILING lines go.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* SMLib: pin 7ac037e (the new blend's tangent-end event, zero-speed G2 ends, and its exact-class rounds)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the fillets known-failing list is the 22 cases that fail on SMLib 7ac037e

Twelve listed cases build on the new blend's end event and exact classes, or were already
built on develop: they come off the list.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: #316's bottom rounds as large as the wall, or larger, shell with a step wall at the opening, not refused

Where the round meets the open bottom the cavity's wall steps down along the bottom's normal, so the
round meets it at 90 degrees and the opening is exactly the picked face. The cases are renamed and
graded on the exact volumes, and come off the shell known-failing list.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Merge fixes: every crate and test target compiles on the merged tree, but for crates/geom's hlr

world_state, view::bounds, home_camera and scene return Result on develop; new
main code takes that with ? or session_world. New fixtures carry the spline's
nurbs. ForeignCopy::of returns Result. occurrence_placement_with walks the path
with its moves, since the placement index holds pending_moves only.

The hlr port is separate and still to come: this commit does not compile as it
stands in crates/geom/src/hlr.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Drawings hidden lines: read develop's B-rep records

Edges come from the record's edge list, cut to their interval (C3::of_edge), and
faces from its face list; a cylinder, cone, sphere or torus chart takes its bounds
from where its NURBS form lies on its label (S3::of_face). A rigidly placed
revolution has main's revolution chart; other placements stay refused. Moving a body
to its centre goes through Brep::moved. Loops are read against the natural normal of
the face's parameters where a chart wraps.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Hidden-line fixtures: build develop's records from the fixtures' data

Fixtures keep their bounded curves and surfaces and their own edge numbers; a private
builder makes the canonical record, and the local prepare puts the edges back in the
fixture's numbering. Assertions are unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Hidden lines: tests of the bounded edges, face charts and placed revolutions

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* drawing-hlr doc: what is drawn and refused on develop's records

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* hlr tests: a placed revolution is refused when its placement is not rigid

The new model has one record for main's Revolution, which was drawn, and its
PlacedRevolution, which was refused. An identity placement is now the former, so
this test's fixture takes a non-rigid one. The refusal it asserts is unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Hidden lines: a traced intersection is drawn only where its spline lies on both surfaces

A leader off either surface is refused like a curve with no spline to follow. Tests: a traced rim
drawn on the circle and plane within tolerance, the same leader 1 mm off refused, and kernel bodies
with arcs through the production prepare against closed forms.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Hidden lines: kernel bodies through the production prepare against closed forms

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Tests from main: the world state is a Result here

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* A blend's pick measures close edges on their curves, not their polylines

A polyline can be a chord off its edge, more than two edges are apart near a
tangent point. A pick exactly on a ball's rim took the straight edge the rim is
tangent to, and solidcore built a chamfer of that edge with a clean check.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk
(cherry picked from commit c786db6bf4)

* Merge fixes from the first SMLib test pass

Model cache key covers the crates develop's kernel adds under doc (profile, smlib, step).
A piece taking a name also takes the feature that made it: SMLib lists a cut's pieces in another
order, and the swap left the name on a piece of the wrong feature.
A replaced analysis keeps its status slot. A command with no world picks does not place the model
first, so assembly.mass_properties answers for a flattening placement. FeatureCommon loses the
touching key the merge added; only the contracts that read it take it.
Two of main's tests listed as failing on SMLib, with why.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Merge fixes from the ui test pass and the gates

Main's thread.direction keys go with develop's thread hand, which replaced them. Vietnamese for the
messages develop added while main made vi a complete catalog. CGA and 1-bit themes set develop's
comb and section hatch colours. A ribbon button with a persistent effect is pressed only while its
tool runs, so persistent_ribbon_pressed alone decides how its effect is shown; other analyses stay
pressed while on. Two of main's ui tests listed as failing on SMLib, with why.
Gates: fixed thread tables become slices, one collapsed if, rustfmt.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* A silhouette takes its facing from the surface's normals

A flat triangle beside the outline can tip the other way from the surface it approximates, and its
edges joined the outline. On SMLib's sphere that made 192 segments instead of the equator's 64, 100
curves and 95 profiles from the tight fit of #7989. Each corner's normal is used where it is close
to the triangle's own; a mesh without such normals (none, zero, not numbers, or averaged across
creases) keeps the triangle's normal, as before.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Clippy and rustfmt on the merged tree

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNXLXkZLQ6T7TSi4wswcmk

* Stepwise open checks every feature under the session's mode

OpenSteps::start evaluated under the default check mode, and finish kept those results under the session's mode: an each_step or off session opened in steps recomputed nothing. start now takes the mode (the app passes its session's), and a mode that changed before finish evaluates the design again under the new one.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* Clippy without SMLib: the planar-sheet edge reader is built only with it

Its one caller is in the smlib-only sheets module, so without the feature it was dead code and
clippy -D warnings refused the kernel.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* SMLib: pin d01d7b0 (the new blend's one Gⁿ section generator: the chord, circle and curvature sections, and the variable rounds as the union of their balls)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the section orders, chord, circle and curvature section, on planes and against a cylinder

Eight fillet cases for the blend's cross-section by its order of contact with the faces, each
graded on its analytic volume at rel 1e-7 and its exact continuity (the order, and not the next):

- a box's top back edge chamfered 3 (G0), rounded r3 (G1) and curvature-rounded 3 (G2): the
  areas cut off the corner s^2/2, (1 - pi/4) s^2 and 113/756 s^2, the last by the default
  thumbweight's definition;
- a pipe R10 dipping into a plate, its concave edge chamfered 2 (the chord between the contacts of
  the ball SMLib rolls for that setback, radius 1), rounded r2 and curvature-rounded 2, each
  section's added area by Green's theorem along the plate, the section and the pipe's arc; the
  order-2 section is built from the faces' feet of the point at distance d from both, which on
  the pipe are not linear in d;
- a boss root curvature-rounded 2, the square corner's section revolved (Pappus);
- a variable round r1 to r5 along a box edge (rel 1e-5): the balls' envelope is a circular cone,
  and the volume is the cone's sections integrated along the edge.

Three fail today and are listed: the two curvature rounds whose faces are not a square corner of
planes (SMLib's quintic blend curve, not the order-2 section: rel 6.5e-7 and 1.2e-5) and the
variable round (great circles, not the envelope's: rel 4.8e-5). The other five pass on SMLib
7ac037e.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the curvature fillets' expected bodies from the order-2 section at thumbweight 0

SMLIB_BLEND_CURVATURE's section is now the order-2 G^n section at thumbweight 0. Between two
planes square to each other it cuts A = 0.154192655384275 s^2 off the corner, its first moment
about either face 0.0291753295725360 s^3 (Green's theorem on the section): the curvature cases
built on that corner (862, 2708, every-box-edge, every-hole-top-rim, every-l-bracket,
every-block-cylinder-crease, the three-edges-at-bar-corner reports, 3604's fillet) take their
volumes from it by their own methods, the peg's front blend 23.3237146876 (its section along x
up to the wall). Between planes the section's t^3 term vanishes (their feet are linear in the
distance): the box edge case is exactly G3. The boss root is a certified fit, G3 to the plate and
G2 to the wall at Continuity Analysis's tolerances: at least G2. The boss root and the pipe on
the plate pass on SMLib's section and leave the known-failing list.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Curvature fillets: the section's default thumbweight is equal area, so the round's volumes are the circle's

On the round's rails the order-2 section takes off what the ball's circle does: (1 - pi/4) s^2 at a
square corner, first moment 0.0474559669443 s^3 (w = -0.5252123889). The kernel and engine tests
and the curvature rig cases take their volumes from it by their own methods; the pipe on the plate
from its own wedge (70.52878 degrees, w = -0.8544103493). The G2 corner patch's seam test is listed
until the corner step.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: four G2 corners wait for the corner step: their patch meets the new section's rounds G1 at one face seam

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the turn at a corner of two rounds, Mitre (the default) and Swept, at a pocket's floor and a boss's base, by exact volumes

A round's spandrel A = (1 - pi/4) r^2 and its first moment about its wall M = r^3 (5/6 - pi/4):
Mitre adds L A -+ 2 M per edge (cut at, or run on to, the corners' bisector planes), Swept turns
the section about a convex corner's edge, (pi/2) M a corner, and refuses a concave corner rounded
less than the ball. The pocket's tangent chain round its R3 corners is a torus each. Graded to
1e-7, where Mitre and Swept differ by 6.6e-6. The Swept cases are listed until solid.fillet
takes a turn.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: a junction family: oblique wedges 30 to 150 degrees rounded and chamfered (exact), bosses upright and tilted, pipe tees and a Y junction

Four are listed with their causes: the equal-pipe tee (its exact conic-pair rounds meet at the
ellipses' crossings in a corner the old corner code cannot join), the tilted bosses (1001, before the
blend rework too) and the Y junction (refused for room at its triple points).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Variable rounds: graded by the union of their balls (their envelope), not the balls' great circles

The smlib crate's laws and ladder 005, 006, 007 and 012 take the volumes the balls' envelope
removes; the law with a corner is its own test, listed as failing until the corner step.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel tests: variable rounds graded by the union of their balls, the removed volume to 1e-4 of itself

removed_by_balls integrates, in each plane square to a right-angled edge, the corner the union
of the balls leaves (by rays from the edge, the least entry over the balls), cut to the body's
section. The law with a corner through a middle point is its own test, listed as failing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel tests: a spline radius whose balls fold over one another at its peak is refused

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: the variable round on its cone passes (the round is the balls' envelope)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Tests: three rounds of different radii at a corner listed: the corner's transition kinks with the balls' touch circles

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Ladder: the variable rounds graded to 1e-6 by the union of their balls; 012 by its law going on past the edge

At the default 1e-3 the great circles' volumes (4e-6 off) passed too. SMLib builds each within
1.6e-7. The golden takes the new volumes and areas; counts unchanged. The G2 corner test listed
as failing passes on SMLib's step 3 and leaves the list.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Reference tests: the variable rounds 77, 78 and 81 pass on SMLib d01d7b0; their known-failure marks come off

The new section builds their edges on the surfaces, so STEP export no longer finds them 4.6e-5
to 6.1e-5 off. develop's Reference tests (60393a718) report all three as passing while marked.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* STEP import: a ball's halves whose seams are off each other's quarter lines each form within one turn

A sphere split into two halves along a circle about its axis, each half covering a pole with no
seam, gets a seam per half from the first vertex of its loop to the pole. The circles between the
halves group their frames so they turn together, and when the two seams are not a whole number of
quarters apart no one turn fits both: the group kept its frames, a half's form ran past one turn,
SMLib's trim (SMLib and solidcore alike) across the form's end crossed the face, and the mesh
folded over the ball (a rotor's ball showed torn; its half had 196 times its area in triangles).

When no one turn fits the group, each spilling face is now turned on its own to start on a quarter
line. On the rotor file this also clears three other faces that were filled leniently and a
0.076 mm edge gap; regression test in step_in/tests.rs with the area and volume of each half.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz
(cherry picked from commit b3188e005d427043b918267449c2336a1777e54f)

* SMLib: pin 5e8c9c1 (the new blend's corners: Ball and End/Join; exact fold and room checks with fit sizes; overflow in place; the round as its definition)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel tests: a law's dip shows its corner ball's sphere, a peak's two rounds cross (the reasons had them swapped)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Reference tests: the variable rounds 77, 78, 80 and 81 expect the union of their balls

A variable round is the envelope of the balls rolled along the edge, which takes less than a
quarter round in each section. The expectations are now that union, the law continued past the
edge's ends along its end slopes, integrated by Gauss-Legendre panels in x and t; 2, 4 and 8
panels agree to 1e-9 of the body's values, and 77's removed volume matches a brute-force union of
balls to 2.5e-10. The nearest-ball search now scans the balls the ray meets around ball x
(|x - s| < r(s) sqrt(sin 2t)) on their own, which near the faces and where 78's radius closes to 0
are narrower than the global scan's step. Regenerating keeps each case's known_failure. 79, a
constant radius, is unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Known failing: the law corners' kernel and crate tests and rig 1207 pass on SMLib 48ea616

SMLib builds a variable round's law corners as its balls' union (the corner
ball's zone at a dip, the sides' crossing at a peak): the kernel's corner
through a middle point (39.5410) and the crate's 4 -> 2 -> 4 law (39.5421) pass.
Rig 1207 (the bar's top edge rounded after the boss's arc, r0.5) builds and
grades on the same SMLib; it failed on c820346.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Kernel rig: every fillet and chamfer case rounds its tangent chain

The owner's ruling of 2026-11-01: the rig and the ladder round with tangent_chain true, how a
user's default pick behaves. The 38 fillets-area recipes and the ladder's 07-fillets/016 and 018
that passed false now pass true. The shell recipes keep theirs: a shell's tangent_chain is its
open-face chain, a different feature.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: the partial-selection cases kept as -partial-chain copies, tangent chain off

Where a case's point is one edge of a tangent chain rounded alone, a copy keeps tangent_chain
false as its own case (SMLib rounds exactly the picked edges, ending at the smooth vertex); their
expectations stay as they were, to be re-derived:
- fillets/1207-fillet-box-end-edge-into-unblended-round-partial-chain;
- fillets/every-fillet-after-fillet-curvature-front-then-side-r3-partial-chain;
- fillets/1207-fillet-bar-top-edge-after-boss-arc-round-partial-chain, renamed from
  ...-no-tangent-chain: with the chain on it is exactly 1207-fillet-bar-top-edge-after-boss-arc-round,
  which the rig already has;
- ladder/07-fillets/020 and 021, the r5/r3/r7 and r5/r3/r2 corners (016 and 018) with the r3 on
  its edge alone: with the chain on, the r3 runs on along the r5 round's end arc and down the
  vertical edge the third round was to take.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: the concave arc between the block's tangent sides kept with tangent chain off

fillets/every-block-cylinder-tangent-concave-arc-r2-partial-chain: the pick takes one piece of the
concave half circle, which SMLib splits; with the chain off its other pieces are left out, and the
blend is refused at the piece's end (the base gate's outcome). With the chain on the case rounds
the whole half circle. The copy keeps its expectation, to be re-derived.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: two chains that now build graded by their exact volumes

With the tangent chain on, two cases round more than the edge they pick, and their old
expectations were the single edge's:
- 1207-fillet-box-end-edge-into-unblended-round: the r1 chain is the end face's top edge, the r3
  round's end arc and the back upright; 34 A + (pi/2) A (3 - c) by Pappus on the arc:
  V = 7953.139216 (it built 7953.139216, the old 7957.505 passed only inside 1e-3), 10 faces.
- 851-fillet-top-front-then-front-left-upright: the upright's chain runs up the first round's
  end arc on x = 0 and along the left top edge, so the corner becomes the R2 ball's eighth:
  V0 less the first round's spandrel to the wall (35.344727) less 27 (4 - pi) + 2 pi/3:
  V = 9530.777979 (built 9530.777987), 10 faces.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: a curvature chain round a round's end refused for its size; the concave half circle builds

- every-fillet-after-fillet-curvature-front-then-side-r3: the side edge's chain runs round the
  first curvature round's end curve, whose radius of curvature has a weighted mean of 3 (its
  setback) and is unbounded at the ends, so somewhere below 3: the size-3 blend's contact line
  folds back on itself. Refused, "larger than the faces beside its edges allow", as ladder
  07-fillets/016's r7 on the r5 arc. (It was solid or refused for running on tangentially.)
- every-block-cylinder-tangent-concave-arc-r2-no-tangent-chain: the chain takes every piece of
  the half circle and ends at the convex edges it runs on into; it builds the analytic 19091.9620,
  so the outcome is solid (the refusal alternative was the chain-off one's).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Known failing: two 851 chains whose corner piece is a ball of tube-centre radius 0

851-fillet-arc-then-top-front and 851-fillet-top-front-then-upright: with the tangent chain on,
each R2 chain runs along the end curve of an R2 round on a curved face (the arc round's end on the
front face; the first round's end on the wall), where the rolling ball sits on that round's own
centre line, so the piece is the ball about (39.2538, -19, 8): the three-edge rolling-ball corner.
SMLib fails with status 1001; the same piece on a plane end arc builds (front-left upright).
Expectations unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Ladder: 016 and 018 refused, their r3 chain takes the vertical edge; 020 and 021 recorded

With the tangent chain on, 016's and 018's r3 runs on along the r5 round's end arc and down the
vertical edge, so the third pick (60, 40, 8) is 3 from both of that round's contact lines and
names no edge: refused, asking for a point along one edge. The corners they were made for are
020 and 021 (the r3 alone), whose golden entries are 016's and 018's (021 measured on f12a101).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel tests: three rounds at a box corner end on one rational patch on the ball's sphere, not an analytic sphere

SMLib's Ball corner is always the rational patch exactly on the sphere (owner ruling, blend
design §23), so the corner counts as an 'other' face beside the three cylinders and six planes.
The removed volume still checks the corner against r³ − πr³/6.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: the curvature round on a pipe on a plate is listed: a seam grades G3 where exactly G2 is wanted

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel tests: the box-and-fillet wire fixture records the round's cylinder frame as SMLib now keeps it

The round's cylinder keeps the frame it was made on when it is turned (SMLib's SwapUV no longer
re-derives it): its origin sits at x = −20 on the same axis line, (x, 2, 8) along x, radius 2.
Same cylinder; one number in the record moves.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Known failing: two kernel tests' reasons as they fail on SMLib 5e8c9c1 (a partial selection running into an unblended tangent edge)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: two curvature rounds get 600 s, past the 180 s default, while G2 certification is slow (tangency-labs/smlib#96)

On the CI runners the boss root and the hole rim, both size-2/size-1 curvature rounds, build
correctly but take more than 180 s: the order-2 section's span certificate and the round's
definition are evaluated station by station. The per-case limit is the one the thread cases use.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Lid ring sketch test: find the ring under the pick, not by main's kernel's name

On SMLib the lip join's exact history names the lid underside's ring a piece
of the lid's own start (F14:start#[...]), as the naming rule says for a face
that came from the feature's input; main's kernel named it after the case's
top it rests on (F2:top). The test looked the ring up by that name and so
stopped before the attachment it guards. It now takes the underside piece
under the pick point, which the cap certificate attaches on either kernel.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* Viewport culling test: each box's triangles from its mesh, not 12

SMLib meshes a 10 mm box in 108 triangles, so the hard-coded 12 a box stopped
the test before it reached the culling. The expected counts are now each
body's span in the scene.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* Timeline chip test: a fillet that really reduces

The R20 fillet with fit reduce on one top edge of a 10 mm box builds on SMLib
without a reduced-radius warning, so the fixture had no warned feature. It
now rounds the four vertical edges at R6, reduced to the full round (5), as
the copy-warning test beside it does, and checks the warning says so.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* Oracle: 34-chamfer-then-fillet and 35-fillet-curved-curved pass on SMLib 5e8c9c1 (their STEP edges are on their surfaces)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Known-failing: the shell of a fully rounded box opened at one face fails on SMLib 5e8c9c1 (tangency-labs/smlib#102)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Known-failing: the action matrix's oblique cylinder cut fillet passes on SMLib 5e8c9c1; two shells still fail

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: the boss root's curvature round gets the rig's 1800 s cap: on the CI runners, 8 cases at a time, its G2 certification passed 600 s (tangency-labs/smlib#96)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: a case's continuity can ask for an order per seam (seams: [{order, edges, exact}])

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: the pipe on a plate's curvature round meets the plate G2 and the pipe G3, 40307.8856312 (option B's order-2 jets, tangency-labs/solidcraft#10845)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Edge names: a seam names its one face once; the curve-id test reads every edge kernel-neutrally

A seam's two sides are the same face, and edge names list each face an edge
bounds once, so SMLib's extruded circle names its side's seam F2:side:c1, with
no separator. The name grammar now says one face also means a seam. The #5858
test no longer counts one '|' an edge: every part of every edge name is a
whole face name of the edge, one per face it bounds, two for the rims and one
only for the side's seam (checked to run bottom to top on the circle).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* rustfmt on the merged tree

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* Known failing on SMLib: two of main's new tests assume truck's box mesh and fillet torus

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* SMLib: pin f916a8d (a round on a definition face is its definition; the G1 setback fill certified convex, setbacks too short refused naming the least; the G2 certificate halves a span no level can certify at once)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Fillet: a setback too short for its corner is refused naming the least that builds (smlib_blend_fit_size)

SMLib's setback corner takes a G1 fill only once certified convex, and refuses a setback too
short for that as SMLIB_ERR_NO_ROOM with SMLIB_FIT_SETBACK_AT_LEAST, the smallest setback that
builds. The kernel reads it (solidcraft-smlib binds smlib_blend_fit_size) and names it; the
Fillet dialog says it in plain words. Other room refusals keep their words. The r5 box corner
set back 5.5 is refused naming 5.962, which builds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel tests: three rounds of different radii at a corner meet in SMLib's setback corner

Each round runs whole to its section square to its edge at its setback (the owner's rule, at
least 1.5 r, scaled to the least at which the G1 fill is certified convex), and the hole is the
setback split: one patch per round and the triangle in three quadrilaterals, 15 faces, G1.
Outside the box the sections span the body is the three strips', so its volume is theirs within
that box's. A later r3 round at the mitred corner makes the body all three at once make
(7928.142563938, 15 faces), as the engine and the model-cache tests have it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel tests: SMLib's own corner between curvature rounds is curvature continuous, as the G2 patch is

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: the boss root's and the hole rim's curvature rounds take the default timeout again (37 s and 34 s on the box under the rig's parallel load, tangency-labs/smlib#96)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Agents: model decisions use exact geometry; a mesh is for display, export, previews and mesh bodies

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* xtask: mesh-decisions, model decisions use exact geometry; today's 176 mesh decision sites are listed and the list only shrinks

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Sheet metal: cuts and holes pass over sheets and bends by their exact boxes, never a mesh's

A primitive cut skips the sheets kernel::apart (exact bounds grown by the record tolerance)
finds clear of its tool; the bend check leaves the clear case to kernel::boolean, which answers
it from the same exact boxes with no intersection work. The mesh-box helpers are gone, and their
four lines leave xtask/mesh-decisions.txt (172 sites left).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Agents: AGENTS.md loses a stray merge-conflict marker line at its end

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Locales: Vietnamese for the setback-too-short refusal, now that vi is a complete catalog

Main made vi a complete catalog; develop's new message (ui.fillet_error_setback_short) had no vi
entry, so every_complete_catalog_carries_every_english_message failed on the merged tree.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: exact volumes for 1213's bent-tube round and 4782's bar round, rel 1e-6

1213: the loft is a cubic skin through the five sections (ellipses between
them), not a torus; its volume 131601.597487935 by quadrature less the exact
rolling-ball removal 233.662461919 gives 131367.935026 (was a Pappus estimate
on a torus, 131360.148, at rel 5e-4).

4782: the section's area in closed form, 25 pi/3 - 5 sqrt(75) + 25, so
V = 630.2934873 (was a grid estimate, 630.293125).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* Kernel rig: the boss root's and the hole rim's curvature rounds take 600 s again: under CI's parallel load they pass the 180 s default (develop 820b7b6)

They take 37 s and 34 s alone on the box, but CI runs 8 cases at once on slower runners. Their
G2 certificate cost is the open item (tangency-labs/smlib#106, moved to solidcore#2344).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* After the merge: clippy's auto-deref, and the mesh-decisions list for the merged tree

Develop's list was taken on develop alone. Main's code (tap-marking reach, cut and hole box
checks, join pieces, print faces, placed measuring, selection items, imported mesh payloads) and
the branch's own exact_edges and named_vertex use meshes too; three listed functions were renamed
by main (face_outline and plate_recesses into FaceSlice, paste into build).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* After the merge: main's new tests on the SMLib kernel

- Cut To the far side of a curved wall (#8634): the tool stops past the first crossing of the
  face ahead of the profile; SMLib's whole bore is one face that a line crosses twice, so the
  single-crossing rule found none and the cut took nothing.
- Clearing view analyses goes through refresh_display, as main's #10687 made the others, so an
  open feature editor keeps OK and Cancel after Zebra.
- vi, a complete catalog on main, gets the setback-too-short message.
- fillets/KNOWN_FAILING: 4782's cause is now its continuity check (SMLib f916a8d builds the
  expected volume).
- Known failing, as main's tests assume truck: the spline wall's spans as one mesh patch, a
  hole touching an edge at a point leaving one body, and a copy of a copy's triangles matching
  a fresh mesh.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEu4Lr3moCCisdZShKz

* Twisted sweep: circles about a straight path are exact cylinders (solidcore#2184)

A twist about a straight path maps a profile circle centred on the path's
line onto itself, so its swept wall is exactly the cylinder. The skin
through the stations stayed within 3.9e-9 of it (6.6e-9 on the outer wall),
and a boolean with another body on that cylinder failed with status 1001
(solidcore#2184; the kernel's handling of a B-spline face lying on a
cylinder stays open there).

sweep_controlled now builds those walls exactly when the path is lines
along the profile's normal and there is no end scale or rails: a profile
whose every loop is such a circle is swept untwisted, and such holes in
another outer loop are cut as exact cylinders from the skinned sweep of
the rest. Other loops, and an axis-centred arc inside a loop of other
curves, are skinned as before; a failed cut falls back to skinning all.

Regression test in smlib_sweeps_tests.rs: #2184's tubes joined at 10, 16,
18, 20 and 30 degrees give one closed body of 11.5625 pi with cylinder
walls; a twisted hexagon with the bore keeps a cylinder bore.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SdcgEtwSrdwZxqTQp5MfnU

* After the merge: a hole that misses is found by exact boxes; a face is a one-face patch; main's mesh-box helpers gone

- `hole_misses` (main's #10701, through brett's branch) decided from the targets' mesh boxes. It now uses their exact boxes (`Body::exact_bounds`). An unknown box still leaves the hole not known to miss.
- With #10303's two shortcuts and `hole_misses` off the mesh, `body_box`, `mesh_box` and `padded_box` have no caller left, and are deleted.
- `project`'s intersection link passes its one face to `meeting_edges` as a one-element patch. This branch picks one face, not #9009's mesh patch.
- xtask/mesh-decisions.txt drops the six sites that no longer use a mesh here: `apply_traced_with`, `cut_end_past_face`, `beyond_cylinder_reach`, `hole_misses`, `body_box`/`mesh_box`/`padded_box`.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* After the merge: split_move's Result reaches its callers; to_local's duplicated move check goes

`frames::split_move` returns a Result on this branch: an unplaceable model is an error, not a silent no-split.
- Move/Copy of a component (main's #9914) propagates it, as its other calls do.
- `to_local` had the solid.move check twice after the merge (brett's Option one and ours). Ours stays, after the no-picks/not-placed return.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* After the merge: main's two new tests take world_state's Result, as the rest of their files do

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Native B-rep: a ball patch is its own surface kind, read from and written to SMLib's flat kind 6

SMLib's flat arrays now carry the corner of three equal rounds as `SURFACE_BALL_PATCH` (kind 6): its net as a NURBS face's block, with its sphere's centre and radius as its definition (ids 36 and 166). The record reads it as `ball_patch {center, radius}`, a label like the analytic kinds, with the net as its `nurbs`. A plain sphere with a form won't do: the net is not a piece of SMLib's sphere NURBS, so SMLib's `IsNurbSurfaceSphere` would refuse it.

Written back, a ball patch is kind 6 with the same definition, which SMLib takes once its net is certified on that sphere. Elsewhere:
- Offsets classify it as its sphere, so its offsets stay exact and collapse at the centre.
- Face kinds count it as a sphere: fillet_three_edges_at_a_corner's corner is now `sphere`, no longer `other`.
- STEP, which has no ball-patch entity, gets the net as the face's B-spline surface, pcurves included.
- Iso curves and SSI of the label are refused; the face's form is what evaluates.

Test: a_rounded_cubes_ball_patches_go_round_with_their_spheres. The cube's eight corners are ball patches about the corners pulled in by r. Points of each patch lie on its sphere to 1e-12. The patches are kind 6 again after import, with the same definitions bit for bit, and the closed-form volume holds.

Format: pending/ball-patch-faces.rs. Docs: docs/native-brep.md and the rig README's `surface_types` (`ball_patch`).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* SMLib: pin v1.1.0-alpha (a18bbe5): the generic blend's step-4 corners, the Ball's sphere patch through the flat arrays, all-target CI

Since f916a8d:
- #120: every target again, plus the warnings fix;
- #121: the Ball's patch as flat kind 6 with its sphere, read by the previous commit;
- #122: tests gated on counts;
- #123: the Mixed corner;
- #124: the End at a smooth vertex;
- #125: four or more rounds, and open setbacks;
- #126: the equal-area thumbweight guard;
- #127: the trunk merge.

The SMLIB_PREBUILT checksums are from the release prebuilt-a18bbe5…, written by `scripts/fetch-smlib.sh --pin`.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* smlib export tests: rustfmt's line for the rounded cube's edge midpoints

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: the fillet and ladder results on SMLib v1.1.0-alpha, the new failures recorded with their reasons

Fixed (off the known-failing list): the Mixed corner's peg cases and the concave arc with the front top edge (smlib #123), and the 40° boss junction (smlib #124). Eight cases in all.

New failures, recorded as they are, each with its reason. They passed on f916a8d.
- **Six cases grade a blend seam G0 where G1 (or G2) is wanted,** at the end of the round's contact seam, after smlib #124's End at a smooth vertex. Two of them also shift in volume.
- **Four cases come back unsupported** after smlib #125, which leaves setbacks to the Setback's corners only.
- **Ladder 07/012** makes 9 faces, 20 edges and 13 vertices, where its golden had 8, 18 and 12. Its golden entry is the new result, with the reason added.

Whether each change is by design or a defect is being established. A defect is fixed in solidcore, where the End and the Setback are being brought over (#2364, #2365), not in the frozen SMLib.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel ladder: 07/021 and 06/018 recorded as they are on SMLib v1.1.0-alpha, each with its reason

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel ladder: a golden case marked unstable is gated on its status, and 06/018 is marked

On SMLib v1.1.0-alpha, 06/018 makes 597 or 594 edges from the same input:
the union's post-process keeps pointers to edges it has deleted. A golden
entry's `unstable` reason makes the gate compare that case's status only
and name it in its output; recording keeps the reason, and only an edit of
the golden removes it. v1.1.0-alpha.1 fixes the cause and removes the mark.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* After the merge with main: its new code on develop's exact bounds, types and thread fields

- The sheet cut's cull (#10301) and the tapped wall's (#10227) use each
  body's exact box (`exact_box`), not its display mesh.
- model.threads replies with develop's thread fields: form, hand (right,
  left or both) and starts.
- surface.boundary's schema checks a network curve's continuity as the
  handler does, and words a list entry's error as it does.
- Main's new tests take develop's Hole fields and world_state's Result.
- mesh-decisions: contact_sweep's triangle check is now `depth` (main
  split `hits`).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Known failing: the 14 cargo tests SMLib v1.1.0-alpha fails, with what each sees; two cases that pass now

Develop's CI after the a18bbe5 pin (run 41522001173) fails 14 tests that
passed on f916a8d, and passes two listed ones. Each new line says what the
test sees on v1.1.0-alpha; v1.1.0-alpha.1 fixes the setback hole's cause.
shell_tangent_chain_that_opens_every_face_explains_how_to_keep_walls and
oracle 37-pyramid-apex-blend pass and leave their lists.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Cargo.lock: develop's profile, smlib and step crates at main's 0.30.1

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: main's six new sketch-only commands are exempt from a kernel case

sketch.construction_line (and its horizontal and vertical forms) and
sketch.spline.insert_point, remove_point and reverse change only the 2D
sketch.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Cuts leave the bodies their tools can't reach, by exact boxes (#10225 on exact geometry)

- The per-target cut loop skips a body whose exact box lies clear of
  every tool's, as main's version did with mesh boxes. The sheet culls
  (#10226, #10301) and this one now leave the far sheets and bodies alone:
  a_cut_leaves_bodies_it_cannot_reach_as_they_were passes and leaves the
  known-failing list.
- a_cut_still_runs_where_its_tool_touches_grazes_or_meets_a_curved_face:
  a tool 0.5 µm clear of the block is now left out (exact boxes; 0.5 µm is
  far past the bodies' tolerances); touching and 0.1 mm in still cut.
- Known failing, with reasons: main's edge lookup by a stored point
  (#11286, on the display mesh) is not taken; SMLib refuses the
  wrong-way chamfer for its tangent chain first.
- EXEMPT: main's eight new sketch-only commands.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: main's new view, rendering, appearance and settings commands are exempt from a case

62 of the commands main added change no geometry: the view and render
panes, rendering lights and results, appearance tools, settings profiles,
point clouds (drawn as points, never a body), the selection, two sketch
edits, component links and History bar visibility, edit.repeat,
timeline.play, inspect.compare_picture (a picture against the outline),
and component.paste_from_design, which pastes the app's cross-window
clipboard that no command fills. Each joins EXEMPT's first section under
its family's reason.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: construct.plane.axis_point gets construction cases

The plane through a box edge and its far corner, graded against its
closed-form normal (0,-2,3)/sqrt(13) through the origin, and the refusal
of a point on the axis.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: assembly cases for mass properties, align, find limits and moving items between parts

- assembly.mass_properties: two boxes (2 g/cm3) in a rigid group: mass
  0.006 kg, centre (18.333,5,5), inertia diag(0.1, 1.0333, 1.0333) kg mm2
  by the parallel-axis theorem.
- occurrence.align: a block's end face onto a base's top face: a quarter
  turn about y, centre (70,20,20), box (65,15,10)-(75,25,30).
- joint.find_limits: a slider between two stops: min -20, max 10 mm.
- component.move_features, browser.reparent and
  component.move_sketches.to_parts: items moved into a turned and moved
  part keep their world place (volumes, centres and boxes by hand).

The mass case assigns a material it creates, so material.create and
material.assign leave EXEMPT. PATHS names the new command modules.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

* Kernel rig: export and print face cases in the import area

- file.export_step, export_stl, export_3mf, export_obj: a 30x20x10 box
  written and read back (the meshes converted to a solid): V 6000,
  A 2200, 6 faces, box (5,-10,0)-(35,10,10).
- file.export_urdf: a hinged arm on a grounded base: 3 links, 2 joints,
  and the base's mesh, written in metres, reads back as the
  1 x 0.5 x 0.2 box (V 0.1, A 1.6).
- body.print_face: a cylinder's flat end is accepted, its side refused.

PATHS adds the URDF writer and the print face modules.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DtL5M41G8Nua7HvuFPZkmJ

---------

Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: brett19 <brett19@gmail.com>
2026-11-02 22:53:32 +00:00
bherbruck 59ffd38019 Timeline: selecting a joining extrude no longer lights round walls an earlier feature made (#11263) (#11286)
A join that reports no history names faces by comparing the meshes before and
after. When the join makes the body bigger, round walls are meshed differently
and miss their old mesh at the naming tolerance, so they were named as the new
feature's faces. A curved face with no match now looks again within the two
meshes' chord tolerances. An edge name saved while a wall had the wrong name
falls back to the edge at its stored point.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 19:40:17 +00:00
Mateusz Sych 7bdaec8f4d Joints: large assemblies with many closed loops no longer leave a new joint in conflict (#9687) (#11146)
* claim: #9687

* Joints: Edit Joint and Unsuppress meet a conflicting loop joint as Joint does (#9687)

joint.create (#10371) turns an angle a half turn when a new loop-closing joint
comes out as a conflict, so a second planar joint whose faces point the same way
meets. joint.edit never did, so a design saved before that (the report's rail on
two planar joints) kept the conflict however the joint was edited, and a joint
unsuppressed after its part was turned away stayed one too, though Move's hint
says to edit the conflicting joint.

An edit that places the joint again (type, offset, angle, flip, a side, or
unsuppressing it) now tries the same half turns. A rename alone moves nothing.

* Joints: a loop group over the solver's values still moves the loops that need to (#9687)

A frame held by many planar joints (the report's printer: six planar joints
between two profiles, and more) ties its loops into one group through the
shared values. Past MAX_LOOP_VALUES (64) such a group was only checked, so a
new joint closing a loop in it (Joint35, the rail on the 450 mm profile, which
took the group from 63 to 69 values) stayed a conflict, and nothing in the
group could be driven or dragged any more.

Such a group now moves the values of the loops that need to move, those open
at the start or reading a held value that moves, when they are few enough,
while every loop of the group stays a residual, so the others stay closed.
Groups within the cap solve as before.

* Joints: closed loops through a moving value follow on their own closing joint (#9687)

In a loop group over the solver's values, a closed loop that runs through a
value the open or driven loops move (a part slid on one planar joint and held
by a second) kept its closing joint's values, so its gap opened and the solve
failed. Those closing joints' values move too: they are on no tree path, so
freeing them pulls in no further loop.

* Joints: loops a motion link ties to a following closing joint follow too (#9687)

A followed closing joint whose value a motion link sets moves the value its
link chain starts from; closed loops through that value now follow on their own
closing joints as well, until no more do or the values pass the solver's cap.

* Joints: say what the narrowed loop solve does not find (#9687)

* Joints test: measure the peg's 30 degree turn from where the loop left P0 (#9687)

---------

Co-authored-by: MateuszSychXpl <151755914+MateuszSychXpl@users.noreply.github.com>
2026-11-02 19:38:17 +00:00
kaltenbrunnermarkus 0d8eebbea6 Sheet metal: a hole leaves sheet parts it cannot reach untouched (#10226)
A hole in a design with sheet metal first tried to bore every sheet of its
component, building each panel and running a boolean on it, and then
checked every sheet again to see whether the drill met it at all. For a
sheet far from the hole both only found nothing: with 50 sheet parts that
was most of a hole's time. Now a sheet whose box lies clear of the
drill's box is left out of both, with the same grown boxes the other
sheet cuts use, so a drill into a sheet's rim still bores it. A drill a
sheet would refuse whatever it meets (an invalid one, or one more bore
than a sheet may hold) is still put to every sheet as before.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 19:14:28 +00:00
semmelrinde 861fb8ad56 Hole: a countersink cuts nothing outside its diameter above the face (#5041) (#8261)
The countersink tool was a cone started at the run-on height above the
face, so above the face it was wider than the countersink and kept
widening: a wall or step just past the rim was notched. The tool is now
one revolved profile: the cone from just above the face down into the
hole, and above it a cylinder of the countersink's own diameter. The cone
is the profile's first segment, so its face keeps the name csink:side:0.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 18:55:37 +00:00
NOWN-DEV 9432cdfee8 Sheet metal: material joined in the plane of a panel is kept (#6843) (#6855)
* claim: #6843

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PsiqyXWBFGTCX9J51bhysc

* Sheet metal: material joined in the plane of a panel is kept (#6843)

An extrude join through sheet metal went through the generic boolean:
the body grew, but the sheet model didn't, so the flat pattern, DXF and
bend table were refused, and the next sheet feature (a refold) dropped
the material ("what ... changed is not kept").

An untapered extrude join one sheet thick in the plane of a panel (the
base or a flange's panel, unfolded or folded) now joins the sheet model:
each region of its sketch becomes part of the one panel it is one piece
with, apart from every bend zone and the other panels, so the flat
pattern, its DXF and a refold keep it, and it follows its sketch's
parameters as a cut made there does. Cut-outs it covers are filled. A
join of another depth, out of every panel's plane, touching a bend zone
or another panel, or over a pocket, label, bore or perforation keeps the
generic path and its warning.

The extrude records its sketch plane and depth for a join too (its
profile grows into the material it joins, so it never counted as
untrimmed). The test that refused a joined tab beside a plain base now
refuses a block standing on the sheet instead; the tab is kept.

Fixes #6843.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 18:31:33 +00:00
kaltenbrunnermarkus ca4796921f Tapped holes: read only the bodies along the drill line for the wall (#10227)
A tapped hole looked for the cylindrical wall its marking lies on in
every face of every body of the design, measuring each face over all of
its body's triangles. A body is now passed over when the drill line,
widened by the hole's radius and a margin, misses its box (from the
mesh it keeps, which the wall's triangles are part of): no face there
can be the wall, so the marking stays the same.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 18:13:12 +00:00
kaltenbrunnermarkus 686056e4de Opening: a design saved by 0.24 opens with its sketches in later versions (#8151) (#10379)
* claim: #8151

* Opening: a design saved by 0.24 keeps the body a Join To Object runs to (#8151)

Since 0.24.1 a Join extrude To Object also joins the body it runs to
(#6424). Designs saved by 0.24.0 and earlier were built without that,
so on 0.25 the reported box swallowed its lid: the lid's sketch, the
holes, the cut and the moves after it failed.

An extent may now save `to_body_apart: true`, which leaves that body
apart. One pending format change sets it on every Join extrude To
Object of a design of format 39 or older as it opens; designs of
format 40 and later keep the join. Editing the extrude keeps the field.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Markus Kaltenbrunner <kaltenbrunnermarkus@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 18:13:04 +00:00
semmelrinde d7ad69e64f Pattern and Mirror: a hole placed by edge distances can be copied (#8055) (#8231)
A pattern or mirror replays its source hole's definition, so a hole with
reference edges finds its centre again from them. That happens after the
hole is drilled: through the part, the centre is then in the opening, and
the check that the centre lies on the face refused every copy. The replay
now skips that check; placing the hole itself still makes it.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 17:16:51 +00:00
kaltenbrunnermarkus a0ec7dbdf0 Sheet metal: a cut leaves sheets it cannot reach untouched without a check (#10301)
Before a cut ran, every sheet metal body of its component went through a
boolean with the tool, to make sure the cut would not take material the
flat pattern cannot keep. For a sheet the tool does not reach, that check
only found nothing: in a design of 50 sheet parts it was about an eighth
of a hole's time. Now a sheet whose box lies clear of every tool's box is
left out of the check, with the same grown boxes the cut itself uses
(#10225), so a tool that touches or grazes a sheet is still checked.
Sheets shown in another frame and Intersect are checked as before.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 17:16:27 +00:00
bherbruck 6cee7a91b9 Release 0.30.1 (#11176)
Bumps the version to 0.30.1 and folds the pending format changes into format 48.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 11:10:02 -05:00
NOWN-DEV e33b8cfb07 Sheet metal convert: trays made in SolidCraft convert back (#7529) (#7580)
Convert to Sheet Metal refused a tray made with SolidCraft's own sheet metal, exported and
imported again: its walls run on past each bend's end (notch, tear and round corner reliefs), so
the edges beside the bend cylinder's edge never reach the other face's plane and the face could
not be trimmed ("a face beside a chamfer picked as a bend does not reach the face across it").
Where that edge is round or runs on along the bend's line, the face now keeps its corner and
steps down square to the other plane, a step the bend's setback takes up again; the inset drops
an edge the setback leaves shorter than the tolerance.

Test: trays_of_its_own_sheet_metal_convert_back (notch, tear and round, the walls made in one
flange feature, and notch and round with the short walls in a second one): the volume, the flat's
size and outline area and every bend's length are the source's.

Fixes #7529.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 14:04:39 +00:00
Dahak Builds 768dc253dd Fix mirror/pattern feature copy dropping bottom slice on hollow parts (#6452) (#7994)
* claim: #6452

* Engine: a pattern or mirror copy of a join keeps its ends as drawn (#6452)

The copy's tool is rebuilt against the current state, which already holds
the source feature's own material; the embedded-join-end trim (#2059)
read that material as the target already filling the copy's bottom band
and trimmed it away before the copy matrix was applied. Mirroring or
patterning a join on a hollow part silently lost the floor-level slice.
Copies now skip the trim: their ends are where the source drew them.

* chore: re-trigger duplicate PR check

---------

Co-authored-by: Dahak Builds <dahakbuilds@users.noreply.github.com>
2026-11-02 14:03:53 +00:00
semmelrinde 9b431fea16 Hole: on a cone or torus face, drill along the face's normal, not a facet's (#10698) (#10885)
A hole placed on the side of a cone with no direction drilled along
the nearest display-mesh triangle's normal, up to 2.6° off the
surface's normal and sideways. Planes, cylinders and spheres already
gave their exact normal; cones and tori now do too, from the surface
the kernel reports for the face.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 13:48:20 +00:00
Steve Jason f484457c3b Expressions: sign(0) is 0, not 1 (#10996) 2026-11-02 13:47:34 +00:00
Christian Glombek 39163148d9 Sheet metal: an edge flange on part of a stepped outline spans that part (#11034) (#11046)
A flange picked on one segment of a stepped base outline ran the base
face's whole length: trimming the picked edge back to the bend line
merged it with the outline's own edge on that line beyond the step, and
the flange took the merged edge. It now stays off the base's edges that
already lay on the bend line, so it spans the segment picked, with no
relief there: the base is already back at the bend line. The same
outline made by cutting notches into a rectangle gave the right flange
already.

Assisted-by: LLM
2026-11-02 13:45:56 +00:00
Dahak Builds ef939b52eb Parameters: one meaning for value in every reply; round reported numbers (#10747) (#10812)
* claim: #10747

* Parameters: value is mm/degrees in every reply; round reported numbers (#10747)

---------

Co-authored-by: Dahak Builds <dahakbuilds@users.noreply.github.com>
2026-11-02 08:26:24 +00:00
semmelrinde 29a6bbdb43 Hole: say when a hole removes no material, or all of a body (#10701, #10702) (#10836)
* Hole: a hole moved off the material says it removes no material (#10701)

A hole whose position, parameter or sketch point moves it off the part
cut nothing and said nothing: the feature had no warning, and a
parameter sweep listed the value as fine. A hole whose tool is clear of
every body it cuts now warns "the hole removes no material" ("1 of 2
holes remove no material" for several), as a pattern does of its
copies. The check compares boxes only, from the meshes the hole already
found its face on, so a large hole pattern costs no extra booleans.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Hole: a hole wider than the part says it removes all of it (#10702)

A through hole wider than the part removed the whole body with no
message, also when a parameter widened it later. The hole now warns
"the hole removes all of Body1" when a body it cuts is gone after the
cut.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 07:13:00 +00:00
kaltenbrunnermarkus 073bbc3f00 Assemblies: a construction axis follows its component when the component rotates (#10127) (#10212)
* claim: #10127

* Assemblies: a construction axis follows its component when the component rotates (#10127)

A construction axis or point built on a body now goes with that body when
Move/Copy moves or turns it. Each construction records the bodies its picks
lie on; the Move feature (not a copy) carries along every construction whose
bodies it all moved, with the same transform in the construction's component
frame. One that also reads something fixed stays where it is.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Markus Kaltenbrunner <kaltenbrunnermarkus@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 06:40:58 +00:00
alfonsotames 9e5e143ac3 Sheet metal: a fold crosses slanted or curved edges of any panel (#10621) (#10922)
sheet.fold refused any fold whose bend zone wasn't a rectangle. It now
crosses the sheet's own outer edges, slanted or on any curve: the outline
is cut exactly across the zone, the panels keep their real outlines, and
flanges and other folds still go on them. The flat pattern's DXF keeps the
curve as drawn. A sharp corner in the zone stays refused.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 05:24:50 +00:00
SilentWolf75 1cbebe21bf Edit Hole: seed the face where the hole is now (#10689) (#10860)
* claim: #10689

Co-authored-by: Cursor <cursoragent@cursor.com>

* Edit Hole: seed the face where the hole is now (#10689)

Project the stored position onto the drilled face along the hole direction when opening the editor, matching evaluation, so OK works after a parameter moves the face.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-11-02 02:39:25 +00:00
kaltenbrunnermarkus 12ebc80e15 Cosmetic tap markings: look for their cylinder only in nearby bodies (#10303)
* Holes and cuts: count the bodies a cut works on in the cost tests

A test helper, cut_work, adds a feature at the end of a design and reports
how many bodies its cut ran booleans on and which bodies it left exactly
as they were (same geometry, key and face names). A new test pins that a
cut still goes through the boolean where its tool touches a face, runs
along an edge, passes a hair beside a body or drills into a dome.

The sheet metal hole (#10226) and cosmetic thread (#10227) work reuse the
helper for their own shortcuts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Holes and cuts: leave bodies the tool cannot reach untouched without a full cut

A cut ran a whole boolean against every body of its component, and for a
body its tool does not reach that boolean only handed the body back: about
7 ms per body, so a hole in a design of 200 blocks took 1.3 s. Now a body
whose box lies clear of every tool's box is left as it is. Both boxes are
their meshes' grown past how far the exact faces can curve out from them,
the same test sheet metal cuts already use, so a tool that touches a body,
grazes it or drills into a dome still goes through the boolean. Bodies
shown in another frame, mesh bodies and Intersect (which removes the
bodies it misses) are unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Cosmetic tap markings: look for their cylinder only in nearby bodies

A tap marking (a Thread feature, or the marking of a tapped hole) looked
for the cylinder at its point in every body of the design, and each
search meshes the body afresh: with many bodies and many markings that
grew quadratically (200 markings on 200 cylinders: 33 s of a 33 s run).
A body is now passed over when its box, from the mesh it keeps and
grown past that mesh's deflection, lies farther from the point than the
search itself would look (a twentieth of the body's size, plus its own
mesh's deflection). The search finds no face there, so the marking and
everything else stay the same.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 02:15:18 +00:00
dudedagger42 96509412e9 Extrude: a Cut To the far side of a curved wall takes the wall (#8634)
A Cut To Object on a curved face ran the tool through the target and kept
the tool less the body, the piece at the start. From outside a curved wall
to its inside face that piece is the air before the wall: the cut took
nothing, or the tool lay in the curved face and the boolean failed on the
coincident faces.

Where the target's material ends at the picked face under the whole
profile (rays over the profile cross it once, material before, none
after), the tool now ends flat halfway across the gap beyond the face. It
takes what lies before the face and meets no face of the body. Otherwise
the trim is as before.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 02:01:42 +00:00
raykholo e91f5d73bd Joints: a typed joint that closes a loop starts where its parts are (#6061) (#10336)
A relation given no values already started from where its parts sit
(relation_values), so the part moves no further than it must. A typed joint
(planar, revolute, cylindrical ...) added between parts another joint
already relates started its values at 0 instead, so the loop solver began
far from the current placement and could report a conflict for a joint that
agrees with how the parts are placed.

Seed every loop-closing joint, typed or relation, from the current
placement when no values are given. Joints in an open chain and joints with
explicit values keep their initial values as before.
2026-11-02 00:24:33 +00:00
austin62jake a735620aa8 Circular pattern: the axis origin takes length expressions and follows them (#10852) (#10855)
* claim: #10852

* Circular pattern: the axis origin takes length expressions and follows them (#10852)

solid.pattern.circular with axis {origin, dir} kept its origin as plain
numbers, so a pattern about a parameter-driven point stayed where the
point was when the pattern was made: the seed moved with the parameter
and the copies did not. Expressions were refused (#248).

The pattern's origin is now a point of expressions, as a Mirror plane's
origin is: numbers or length expressions, evaluated on each rebuild, and
renamed with their parameters. Plain numbers are saved as numbers, as
before. timeline.edit sets pattern.origin as expressions, and editing the
pattern in its dialog keeps them. One pending format change.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-11-02 00:17:15 +00:00
jeromehzl e016c40f43 Sketch Intersect: picked faces meet as their whole surface, not the span under the pick (#9009) (#9107)
A surface extruded from a fit-point spline is one B-rep face per span,
joined by hidden seams; the viewport picks and highlights it as one face
(Mesh::surface_patch). sketch.intersection_curve turned a face pick into
the single nearest face, so the curve stopped at that span's ends.

project3d::mesh_of now returns the picked face's surface patch and
mesh_intersection keeps the triangles of every face in it. Body sources
and Project to Surface are unchanged.
2026-11-02 00:16:06 +00:00
Christian Glombek d7a17de3d9 Sheet metal: a perforation field bounded by a sketch's outline (#732) (#10754)
`sheet.perforate` takes an optional `sketch` (and `profiles`): the field's
outline. Holes go only inside its closed profiles, out of their inner loops,
`margin` clear of its edges, on a grid from the outline's lower-left corner.
On a folded sheet the outline maps through each panel the sketch lies on and
is clipped to it, so it never reaches a flange in the flat; a sketch on no
face of the sheet is refused. A mirrored copy mirrors the outline, and an
edit that names no sketch (the Perforate dialog has no outline) keeps it.
Without a sketch the field covers the whole sheet as before.

The feature saves `sketch` and `profiles`, a sheet's perforation its outline
in flat coordinates: one pending format note, no migration.

Assisted-by: LLM
2026-11-02 00:14:41 +00:00
leValdemar19 a33619fd2b Tangent Plane: line it up with a reference plane, at an angle (#8822) (#9002)
* claim: #8822

* Tangent Plane: line it up with a reference plane, at an angle (#8822)

`construct.plane.tangent` takes an optional `reference` (a plane or planar
face) and `angle`. On a cylinder, cone or torus the plane touches where the
face turns towards the reference, turned by the angle about the face's axis,
on the side of the pick; on a sphere it is parallel to the reference. The
plane follows the reference when it moves. The Tangent Plane dialog gets a
Reference plane input and, once one is picked, an Angle field; editing the
plane brings both back. Saved as a pending format change.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 00:13:22 +00:00
austin62jake 5ad2503503 Timeline folders: editing a feature in a folder leaves no stale id, and such designs open again (#9373) (#9393)
* claim: #9373

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Timeline folders: editing a feature in a folder leaves no stale id, and such designs open again (#9373)

timeline.redefine runs the edited feature's command on a scratch copy with the marker just after
the feature, and takes the new definition from the feature that run makes. Inside a timeline
folder that trial feature joined the folder too; it was removed from the feature list but not
from the folder, and its id, handed back, was the next feature's. Each edit left that id in the
folder (the same one, edit after edit), naming no feature or, once a later feature took it, a
feature twice, and the reader then refused the design: "damaged design: invalid feature in a
timeline folder". The trial feature now leaves the folders as it leaves the feature list.

The reader drops a folder entry naming a feature or joint the design doesn't have, or one a
folder already holds, and opens the design: folders only group the timeline, so nothing else is
lost. A folder damaged in itself is still refused.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-11-02 00:12:50 +00:00
Sebastian Höpfl 6f73bd95c4 Assemblies: dragging a part with mirrored copies no longer meshes them on every frame (#10101)
A mirror of placed bodies follows its source, so each frame of a drag evaluated
it and made new copies with empty mesh cells. A reflection can't share its
source's triangles, so every copy was tessellated from nothing, and so was
anything an evaluated feature after the mirror made.

Keep the first copy of a body with its source: each later copy is a proper rigid
move of it, so a world state draws them from one set of triangles. The model
keeps each copy's own lazy mesh. A feature evaluated again that gives the same
solids (an import) keeps its meshes.

A mirror of placed bodies no longer searches its copies' revolved faces when no
later feature can build on bodies. That depends on the design alone and is part
of the mirror's placement digest.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 00:11:45 +00:00
bherbruck 3125a79827 Release 0.30.0 (#10894)
Bump the workspace to 0.30.0 and fold the pending design format changes into format 47.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 21:55:11 -05:00
Colin Faulkingham eaf34d2528 Construction planes: refuse duplicate feature names (#10707) (#10743)
* claim: #10707

* Fix construction plane name collisions (#10707)
2026-11-02 00:06:59 +00:00
semmelrinde eac1425661 Hole: a face name shared by two bodies is no split face (#10699) (#10872)
* Face names: one name on two bodies is no split face (#10699)

A hole placed on the top of one of two bodies an extrude made, or on a
piece of a split body, warned "face `F2:top` was split; using the piece
nearest the picked point": the face name is on both bodies, and any
name found more than once counted as split. A name on several bodies,
one face on each, now finds the face the point lies on without the
note; pieces on one body, or a point on none of them, still say split.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Hole: look for a face name shared by two bodies on the body the point is on (#10699)

The lookup over every body counts a name on several bodies as split on
purpose (a copy's face is not a piece of the source's, see
`the_same_face_on_a_copy_is_not_a_piece_of_the_named_bodys_face`), so
the first change, which made it unique there, is undone. A hole whose
face name is found split while its point lies on one of those faces now
looks again on that body alone: one face of the name there is the face,
whole; pieces on that body still say split.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 00:06:43 +00:00
Sebastian Höpfl cfc46448a8 Joints: an edge origin shares the joint faces' measurement (#10866)
`face_of` called `Body::faces`, which tessellates the whole body, on every
solve. Face origins went through the cached `ModelBody::joint_faces`, at
the same tolerance, but edge origins never did, so one edge origin on a
large body cost a drag or a Drive Joints step far more than the solve.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 22:51:42 +00:00
Kushagra Kumar 446590dca1 fix(engine): report design variant in timeline.inspect and accept in timeline.add (#10748) (#10792)
* fix(engine): report design variant in timeline.inspect and accept in timeline.add (#10748)

* ci: refresh checks to clear cancelled workflow run
2026-11-01 21:00:44 +00:00
Thodoris Tsagkogeorgas 0ad74f2577 Revolve: keep the angle grab point when the sweep is zero (#9601) (#9602)
A revolve of 0° still builds no solid. The handle stays on the profile so the angle can be dragged back into range.
2026-11-01 20:18:27 +00:00
semmelrinde 89cb651084 Warnings: quote a long generated name by its start and end (#8673)
A chamfer's warning quoted the full generated names of fourteen split edges,
122,701 characters (#8541). Names over about 80 characters are now quoted by
their first 48 and last 24 characters.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 20:12:42 +00:00
P'tite Tête 3017641b41 fix: Projection d'une silhouette à congés coniques fermée en un profil (#10773)
- snap_tangent_arcs : chaque extrémité d'arc prend la ligne la plus proche
- une ligne ne prend qu'une extrémité d'un arc ; l'autre passe à sa ligne suivante
- une ligne plus loin sur le contour est ignorée quand l'extrémité touche déjà une autre pièce
- tests : 4 unitaires (project_order.rs) et the_silhouette_of_conic_rounds_closes

Co-authored-by: P'tite Tête <asso@ptitetete.com>
2026-11-01 19:41:32 +00:00