* Iterate instead of indexing in nine loops
Replace index loops that look up neighbours by position with enumerate,
zip(cycle().skip(1)) for wrap-around pairs and zip(skip(1)) for
consecutive pairs. No behaviour change.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: ring_edges for the edges of a closed ring
Every walk over a polygon's edges, the last back to the first, spelled
x.iter().zip(x.iter().cycle().skip(1)); eighteen of them now call
geom::ring_edges. Three redundant take(len) calls go with them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: Ring, a closed ring that knows it is closed
A Ring holds items in order around a closed polygon, loop or fan; edges()
walks each with the next and the last with the first, corners() each
with both neighbours. Ring<Vec2> has signed_area and even-odd contains.
Loop2::polyline returns a Ring, as do doc's face_loops and
boundary_loops, kernel's coplanar wire samples, CapLoop's segments,
tess pieces' rings, the gizmo's plane quads and the navigation cube's
facets. Their walks take edges() or corners() instead of wrapping an
index; sketch's text-hole test and doc's poly_area become contains and
signed_area. Loop2::joints pairs each segment with the next.
Replaces the ring_edges free function.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: Chain, Ring and Path; bounds for a chain of points
Ring becomes Chain<T, Closed> beside Path = Chain<T, Open>: edges()
closes a ring and stops at a path's end, Path::close makes the ring,
and bounds() (the empty box for no points) serves both. Eight
hand-rolled min/max folds over a loop's polyline call bounds(); doc's
flat_polyline returns a Ring.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: area and inside on Ring for any planar point
Ring's signed_area and contains take any Planar point (Vec2 or
[f64; 2]). The cam profile in joints_cam is a Ring: its own even-odd
test goes, and its edge walks, gap and area take edges(). face_params'
loop area, the text path's winding, tess pieces' ring area and the
copies in three tests call signed_area or contains; the formulas are
the same term for term.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* doc: sheet's closed outlines go through Ring
dedup takes and returns a Ring (dropping a last point back on the first
is what makes it a ring's), near_outline walks a Ring's edges, and the
copy of it beside fold checks calls it. point_in goes: its callers ask
the Ring. Its formula anchored each crossing on the other end of the
edge, so the two can differ only for a point on an edge to the last
digit; one caller sets such points aside first, the others test a
region's interior point, a cut's midpoint or another outline's corners.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* doc: cam tests build their outlines with Ring::from
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: area_vector on Ring<Vec3>; three Newell sums use it
Ring<Vec3>::area_vector is half the sum of a × b round the ring. heal's
loop_area, lip's outer-loop turning and the revolve's loop orientation
summed it by hand with a wrapped index; they take it from the Ring
(the half is exact, and two of them only read its sign).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: Aabb3 from points; boxes built and asked through it
Aabb3 collects from points (skipping non-finite ones, as add does) and
gains inflated, contains and meets. Fifteen hand-rolled min/max folds
over points or boxes in kernel, doc and engine become collect or union,
and their "within tol of the box" tests become inflated(tol).contains.
blend's refused-edge boxes and naming's face index hold an Aabb3.
A NaN point is now outside every box, where the old negated
comparisons let it in; an infinite point no longer stretches a box.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: Aabb2, the plane's box; 2D folds and box tuples use it
Aabb2 mirrors Aabb3 (collect, add, union, inflated, contains, meets)
and adds relative, a point's place in the box. sketch's link and
link_loops each had that formula; link_loops' boundaries, prism's
segment and loop boxes, profiles' shape boxes and grid, and ends'
segment box hold an Aabb2 instead of a (low, high) pair. Folds in the
cam, sketch bounds, sheet's perforation grid and the sketch clipboard
collect one.
Boxes are built from the same terms (a round's box keeps c - r - tol).
As with Aabb3, a NaN point is outside every box and an infinite point
no longer stretches one.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* kernel: prism's segment boxes are plain Aabb2s
The SegBox alias named a (low, high) pair; Aabb2 says it itself.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: Chain::bounds is an Aabb2; the boxes #2382 left as pairs follow
Chain::bounds returns an Aabb2. Its callers keep it: sheet's hole and
cut boxes (loop_box), letter boxes, island outlines and line-near-cut
test use meets, contains and inflated; profile's outline overlap and
max_clearance, profiles' box tests and the cam test read its corners.
flat_size and the flat pattern's JSON size are the union of the loops'
boxes (0 × 0 for no loop, where the pair fold gave -∞).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* geom: Aabb3::intersection; hand-grown and hand-met boxes use the box
Aabb3::intersection is the box both hold. ops' four overlap boxes of a
boolean's operands take it, and seven boxes grown by hand (ops' body
boxes, the distance set's bounds, coplanar's face box, eval_more's
padded mesh box, compare's group and region boxes) call inflated with
the same amount on every side.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: bherbruck <brennen.herbruck@gmail.com>
* Fix large modeled threads and thin crest reconstruction
Helix stations follow the pitch (radial chord error under 1% of it, 48 to
720 stations), and the faceted rebuild retries at the BSP's precision when
the usual weld tolerance collapses a thin crest facet.
Rebased onto main as one commit (the branch's own commits touched UI files
that later moved to #2263 and #2264). Adapted to main's UnitVec3 thread
axis: `*k` in thread_groove and `*cylinder.axis` in the new flange test.
* Fix icon review revisions for same-timestamp edits
The groove's facets came in sweep order, and the BSP takes each list's first
polygon as its splitter, so the tree was as deep as the list: quadratic time and
memory. An M8 x 60 mm thread ran out of tree depth after 12.9 GB. A fixed shuffle
gives a shallow tree and the same result (volume and faces equal to 1e-9).
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
truck's face and edge IDs are their addresses, so walking maps keyed by them followed heap layout, and the ribbed lid's side-wall hole passed or failed by chance. The planar boolean's rebuild and glue now take truck's connected components in the shell's order, and the planar boolean's own maps are ordered. Healing's union-find keeps the lesser root and takes a run's ends in order of use. The face classification after an intersection orders each component's faces by the shell first. The lid now builds the same body on every run, with a test that builds it six times in one process. Its 0.5 mm side-wall holes, and one sensor enclosure hole of the same kind, now fail every time and are marked failing in the baseline.
Fixes#707.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Two L's extruded up and down from one 2 x 2 grid now join into one solid (the planar rebuild gives each fan of faces around a pinched vertex its own vertex copy), and a pad whose end lies half past the edge of the face it stands on fuses exactly: contact faces are imprinted with each other's outline and the common faces glued away, still held to the retry guard. Face splitting handles a line crossing an edge twice; glue matches differently parametrised curves and keeps several pieces apart. Robustness seed 16 now fuses with the exact volume.
Fixes#679, fixes#674.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Joining ribs flush with a lid's window left a zero-thickness slit far from the rib (the planar fallback glued back only one of the faces its pieces shared) and displaced the tool on the other joins. Gluing now joins every shared face pair, coincident-face separation checks there is material behind a pushed face for every join, and any join or cut that needed a retry must be closed, keep volume monotonic and leave the part unchanged outside the tool's box, or it is refused with an error. Feature command replies carry the feature's warning.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
EdgeOrigin::Meet now names each side as a Side: the sorted, de-duplicated
origins of the face there. substitute maps a side to the union of the inner
faces' origins, so a meeting with a face an inner operation merged keeps its
lineage; meeting() derives sides from whole faces. Fillets after box cuts
that leave coplanar pieces now report exact history. Prism lineage meets a
cap of several origins and resolves wall junctions away from shared
vertices by the operand's one edge between the walls. bore_union's recut
reports history only for a one-face bore (pieces of a two-arc bore's recut
wall were given both arcs).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J53sR6gEaVt56soFDpTck8
ops::boolean's result carries its history over [a, b] whichever path made
it, recorded by the code that builds the faces:
- truck path (incl. jitter retries): shapeops history mapped through the
order-preserving copies and the cut's turned tool, then through healing
- heal records which input faces each healed face merges and which input
edges each joined or exact edge replaces (HealMap); opt-in, so heal_keep
callers pay nothing
- trivial shortcuts, the void, glue, faces pushed apart (push_faces records
its own history; the slab cut back on a union maps to the operands'
faces in that plane), the nudged retry, by_lumps and join composition
- prism booleans: section segments carry tags (operand cap edge, the wall
beside it, its vertices) through the 2D boolean; walls, caps and edges of
the extruded or sewn result follow from them
- planar and faceted polygon booleans: polygons carry their operand face;
faces join the pieces across edges, edges come from the pieces either side
History gains renumber/over (and consuming forms) for composition;
record gains regions/traced/build helpers. truck-shapeops
*_with_history now return the solid with an Option history. Paths that
cannot report (bore narrowing via offset, inexpressible lineage) leave the
result without history. Boolean results, tolerances and fallback order are
unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J53sR6gEaVt56soFDpTck8
The loft's top lies in the pocket floor. truck's boolean cannot take coincident faces, and the exact polygon fallback (planar_boolean) only takes bodies whose faces are all planar, so the hole's cylinder ruled out the only path that handles this cut. planar_boolean now first tries a sliced form: when an axis-aligned slab holds the tool and none of the body's curved faces, the body is split on the slab's planes (planes clear of the body's own faces), the planar middle piece takes the exact boolean, and the pieces outside are glued back on along the cut faces (the middle piece is healed first so its edges match theirs). Pieces in several parts are refused rather than glued into one shell. split_by_plane's half-space code is now ops::half_space, which this uses.
Tests: loft_cut_beside_a_round_hole replays examples/regressions/loft_cut_beside_round_hole.json and checks the exact volume (slab - pocket - prismatoid - hole; fails on main). With the hole made after the loft, the body is the same (volume, area, 19 faces, 42 edges).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Export: ExportCommand/CLI --out/MCP export with .3mf write a 3MF Core package
([Content_Types].xml, _rels/.rels, 3D/3dmodel.model; millimetres), one
mesh object and build item per body, named after it, vertices shared and
welded watertight (T-junctions between faces split), base-material colours
when bodies carry one (STEP colours now ride on bodies). Tessellation as
for STL. File > Export 3MF.
Import: doc.open/drag-drop/CLI/MCP open accept .3mf and .stl; Insert Mesh
(ParaMeshInsertAlignCommand) adds them to a design as a MeshImport feature.
Kernel mesh bodies render, measure exactly, move and export; solid
features refuse them with a clear error. 3MF reading flattens components
and build transforms, converts units, reads colours; sizes, entries,
nesting and element counts are capped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL
Colin Faulkingham
NOWN-DEV
phanoob
Erikas
Iraklis KourtisandClaude Opus 5.5
CypherNaugh_0x