Copy, unstitch, reverse and remove faces, Patch (a sketch region, or a planar loop
of a body's edges) and Extend work on the body's record: Parts puts any faces,
edges and vertices into canonical order, and each face taken is the body's face
(Kept), its edges the body's. Sheets are SMLib's sweeps with no caps (extrude,
revolve, curve sweep, stations for twist/scale/orientation/rails), a chain at a
time; a loft lofts each column of matched segments and stitches the columns.
History: a wall comes from the segments its edges in the start plane lie along.
Stitch joins the bodies' records and sews them with smlib_stitch, faces and edges
carried back to the bodies through SMLib's tags. Offset Surface offsets each face
on its own with smlib_offset_sheet and stitches the offsets within the tolerance:
smooth neighbours stay joined, sharp ones come apart, as before; the fitted
offset surfaces and their fold check are gone. Thicken is SMLib's thicken.
Not yet: a surface sweep along a path with corners (refused). Tests ported;
the fold-radius message test now checks only the refusal.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
loft_rails.rs placed stations between truck wires. Its law now works on the
sections' exact NURBS curves (Section, from the sketch segments' record curves)
and returns the sections and stations, each a curve list a loft is skinned
through; nothing of truck is left.
Case 4056 (a keel rail lying in the bow's sketch plane): rail() anchored every
section at the rail's first crossing of the section's plane after the section
before. A rail lying in the last section's plane crosses it all along, first at
the far section, 100 mm from the bow's curve, and the loft was refused ("a guide
rail crosses section 2's plane"). A rail runs from the first section to the
last, so the last section is met where the rail ends; the sections between are
met at their first crossing, as before.
smlib_sweeps.rs's solid loft_rails keeps its own copy of the anchoring and has
the same cause; it should call loft_rails::railed.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
freeform.rs turned each free-form sketch segment into a truck edge. It now gives
every segment (lines, arcs, Béziers, conics) as a record curve and its pcurve on
the sketch plane's own surface, on one parameter with the same knots and weights,
so the pcurve lifts onto the edge exactly.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
trim_keep told each piece's side of the tool from the tool's field at the
centres of its mesh triangles. Each piece now takes one point on its own
surface inside its trims (SMLib's CalculateAnInternalPoint, through
smlib_face_points), mapped to the record's face order through SMLib's
numbering of the split body; the tool's field there says the side. A piece
whose side can't be told is an error, never guessed.
(not built: base in progress; no errors in this file)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
planar_regularize now calls the fork's smlib_merge_faces as it is
(SmBrep::RemoveTopologicalEdgesAndVertices with the edges under the kept points
staying): every edge the lineage does not choose is kept by a point at its
middle, so SMLib joins the faces across the chosen ones only. A body with more
kept edges than one call takes stays as it is, as the other budgets leave it.
splitface, planar_sources and planar_regularize read the body's record in place
(Body::record) and a face's use from Body::face_forward; the two-lump test body
is Body::from_record of the two records side by side.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
planar_sources reads each face's oriented plane from the body's record
(actual_planes: the surface's plane, turned with the face's use) instead of
truck faces; the lineage rules are unchanged. planar_regularize picks the edges
to remove as before (two faces of one shell on one certified plane, from one
source unless generated walls, off every split line) from the record's edge
uses, and SMLib joins the faces across them (Brep::merge_faces: each edge
removed where SmEdge::IsTopological finds the faces' surfaces coincide), so the
merged face is SMLib's and the history its own tags (Merged), composed through
the body's. SmBrep::Simplify is not this operation: it refits curves and
surfaces by knot removal and sampling.
The planar_sources tests read face points, edges and planes from the record;
the two-lump body is built from the two records side by side, each face given
the source of its own operand's face on that plane. Deleted:
planar_regularize's alternate_adjacency_path_cannot_remove_protected_internal_edge,
a test of the truck face builder merged_face (only listed edges are removed now,
so no other path can remove a protected one).
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
coplanar.rs (coincident faces pushed apart, faces glued back to back, bores and
insets joined, imprint unions), seam_faces.rs (round faces halved before a
retried boolean) and planar_faces.rs (flat B-spline faces made planes so the
coplanar strategies see them) existed to get round the mesh-based boolean's
coincident faces and seam loops. SMLib's boolean classifies coincident faces
itself (SmMerge::ManifoldBoolean, step 2), so these are retries and second
paths around the operation, not operations: deleted, not ported.
Their tests of what the boolean gives keep their volume, lump and validity
assertions and now run against the boolean itself (coplanar_tests.rs and
seam_faces_tests.rs need their own mod lines in lib.rs); the assertions on the
strategies used, and the tests of push_faces, grow_faces_exact, trim_exact,
planarized, coincident_planes and halved, go with them.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
A tool is now a set of schema 4 record surfaces, each over a parameter box,
unbounded where the tool is: a plane; a face's surface over its own box; a
sketch curve as one patch per segment swept along the direction (a line a plane
strip, an arc swept square to its sketch a cylinder strip, any other segment its
exact rational Bezier extruded), an open curve continued along its end tangents
past the body. SMLib cuts the faces where the patches meet them
(Brep::split_faces: its intersection curves trimmed to each face by
MergeCurvesOnSurface) and slices a body with one patch (Brep::split_body); the
history is SMLib's own tags. Nothing is traced on a mesh, sampled or fitted.
Which side of the tool a point is on is its offset along the normal of the
nearest patch, each patch's surface prepared once with its projection grid
(ToolSide), never per point. ToolSide::of and side_of_point take the body the
tool must reach past; face_side becomes face_sides (every face of a body, one
mesh); analytic_field becomes analytic_face (a face of a body, on its record);
split_any returns the face map instead of the truck imprint. split_edges_at and
fit (a Catmull-Rom fit through samples) are deleted with the truck code.
ssi::Surface::from_record turns a record surface over a box into SMLib's.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
face_params and outline are gone (no callers on the record). The fork head adds the 2D planar
boolean (smlib_planar_faces, smlib_boolean2d), the grazing-curve crossing rule (solidcore#480) and
untrim's parameter-box status.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
It imprinted two bodies touching back to back on each other along the outline of their
contact and glued them, for the old boolean's coplanar unions that could not join the pieces
its own imprint left. SMLib's boolean is the one path, and nothing calls it any more. Its tests
of the union itself (a lip swept on a round rim joins it, the lip's foot is a plane) stay as
boolean tests, without the old retry diagnostics.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
Its sampled parameter loops (points projected back onto the surface, the outer loop guessed by
area) and its iso-curves of truck surfaces served Untrim and Extend, which no longer use them;
on the schema 4 record a face's loops in (u, v) are its exact pcurves, the outer loop the one
running counter-clockwise about the natural normal. The only use left is a truck test in
native.rs's seam fixtures.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
geom's NURBS curves and surfaces become the record's rational splines, weights kept.
tensor_face builds a whole tensor surface as a one-face sheet (assemble's new Assembly::sheet:
one open shell in the infinite region): the net's first and last rows and columns as edges on
the surface's own knots, sharing the corners, each with its exact pcurve (an iso-line, the
edge's parameter being the surface's along it), and returns the body.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
plane_through gives a plane record (its natural normal turning with the loop); EdgeSampler
samples a record edge through CurveEval in the direction a loop runs along it (an intersection
curve traced as the record holds it, with the evaluator's own hint); planar_face certifies a
loop of record edges from their records (lines by their ends, circles and ellipses by their
frames, polylines and splines by their points with positive weights, intersection curves by a
plane among their surfaces) and returns the plane, the caller building the face on the record.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
A face's reach into a region comes from its record surface: planes (as offset::surf_of reads
them) lie in their triangles, a spline face's control net bounds it (its hull, read off the
record's points and positive weights), walls along the direction are prism::wall_along's, and
round faces keep their span and side. Truck's surfaces and the guard around them are gone.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The exact step of the distance between bodies works on the record: analytic faces in closed
form as before, other faces through SurfaceEval::project, edges by a bracketed golden-section
search of the record curve's own points from the nearest of evenly spaced ones (one method for
every curve kind, traced intersections included), the direction there from the curve's
derivative. Truck's point inversion is gone with it.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
face_surface is the record face's analytic surface (offset::surf_of); edge_circle takes a
circle record's centre, axis and angle exactly (its parameter is the angle about the frame's
z), and for any other curve keeps the test that its points all lie on one circle (SMLib holds
its primitives' circles as rational splines). The spindle torus's signed major radius is gone
with the old kernel: the record's tori are ring tori.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
Seams and merged topology tell faces on one surface apart by the record's own surfaces
(offset::surf_of: plane, cylinder, sphere, cone, torus) and, for free-form faces, by the very
same surface record, never by fitting circles, spheres and cones to mesh vertices or by
comparing mesh normals along an edge. Edges are welded by their record vertices and middle
point, split lines and pinches read the record edge's points, a cone's apex is checked against
its faces' record vertices. The mesh still gives faces of no area and a cylinder face's extent
along its axis; a cylinder's side (hole or boss) is the record's.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
planar_regions_boolean replaced each free-form loop (a font's curves, an ellipse) with arcs
fitted within PLANAR_FIT_TOL before its own line/arc arrangement, and a loop the operation
cut kept those arcs: a cut free-form outline was extruded inexactly. Now each operand is a
sheet of planar faces built from its loops' own curves (Brep::planar_faces; lines, arcs and
the Béziers and conics as NURBS, exactly) and SM_API's 2D boolean combines them
(Brep::boolean2d): SMLib's topology intersector, the one the solid booleans use, splits the
operands' edges where they cross and the result's edges are copies of those curves. The
faces read back exactly (prism_curve::projected: lines, arcs, each Bézier span as the
segment it is). The Rust arrangement (crossings, ray parity, chaining, the fit and the
"exact again" restoration) is deleted: one source, no fitting.
extrude_planar_regions unites its regions the same way (balanced unions of one-region
sheets) and refuses pieces of the union that share a vertex, read off the result's
topology instead of a line/arc crossing test on fitted arcs.
Signatures stay (doc/sheet.rs and mesh_convert call them as before); `tolerance` is the gap
a loop may close within and the least tolerance edges are read back at. PLANAR_FIT_TOL
stays for doc/engine's flat patterns, which fit their own loops. smlib_sweeps::curve (the
Seg2 to SMLib curve conversion) is made pub(crate) for the sheets.
Tests: those of the deleted helpers (crossings, ray parity, closest_param, segment boxes)
are gone; the free-form test now asserts what the exact boolean gives (the half-ellipse
notch is the ellipse's own conics, area exact to 1e-6; the joined ellipses are conics), and
the fitted-arc budget assertion is dropped. Without the smlib feature the booleans are
refused ("not supported yet").
(not built: base in progress; cargo check shows no errors in prism.rs or smlib_sweeps.rs
with and without the smlib feature)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The general fill (G1/G2 patches, patches through points, loops that bound no height
field) is solidcraft_geom::fill_iso's patch on the loop's own edges: each line or spline
edge, on its interval and run the loop's way, is a side, so its pcurve is a straight line
in (u, v), exact. The frames across a G1/G2 edge are read off the one face beside it in
the record: its outward normal, the way it leaves the edge, and for G2 its normal
curvature from the surface's exact second derivatives. Corners whose neighbours' tangent
planes disagree are exempt from the angle tolerance. Loops of five or more edges, and
conic, rational or traced edges, are refused by name.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
A solid body's volume, area and centre are SMLib's mass properties at its documented 1e-4 and its
box SMLib's exact one; a body SMLib cannot measure is an error. The three-mesh measure and the
mesh cross-check beside SMLib's numbers are gone, and with them the kernel switch
(SOLIDCRAFT_KERNEL, Backend): SMLib is the kernel. The smlib feature gates in the crate root, the
validity check and the offset backend go, since SMLib's crate is always linked (answering not
built without the feature).
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
Encoding writes the body's own record and decoding makes the body from it: the adapter to and
from the old kernel is gone. A record goes into SMLib as given (SMLib's own form); one SMLib
refuses is an error that names why, never sent through SMLib's healer. A body made by SMLib keeps
the SMLib body. The bounded preview of a decoded body is a coarse mesh from the planner, charged
to its triangle budget.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
A boolean is SMLib's boolean, its history SMLib's tags: the jittered retries, tool nudges, prism
and coaxial routes, the retry result guard and their diagnostics are gone. A rigid placement moves
the record; any other matrix goes through SMLib's transform (new Brep::transformed over
smlib_brep_transform). Bodies apart join as their records side by side (brep part::compound),
with each piece's faces, sources and history; apart means their exact boxes do not meet. A split
is the intersection with a half-space box, with no faces pushed off the plane.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The fork head carries untrim and extend shims with their history tags, the local solvers that
take no value from a failed evaluation (solidcore#481), the B-spline curve radius check
(#475), the torus minor-interval check (#482), the blend rail along its face's rim (#485) and the
intersection path's statuses.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
What stays is the composition of a multi-step operation's histories (composed, placed, kept,
through, operand, of_pair, Traced). healed(body) is crate::heal::heal with the body's split
lines kept, its history over [body] SMLib's, each face keeping the construction source its
faces shared and the body its regularization protection (as the prism result's healing did).
Deleted with the old kernel: heal_build, truck_result, heal_body and heal_prism_result (heal
and record::after replace them), Shapeops and shapeops (truck's boolean history), edges_evaluate
(sampling truck's intersection curves), copied and void (truck copies and the void boolean,
no callers left), join (records apart join through brep::part::compound) and parts_of (a lump's
history is history::of_part). Tests: the truck-retry tests (shifted attempts, the nudged tool)
deleted; shell counts read the record.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
Body::from_record takes the finished record as the body, so its faces and edges are the
record's and the history needs no round trip through SMLib's numbering. The edge origins
(kept edges, pieces) go to record::attach, which gives every other edge its faces' meeting.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
An operation that builds its result says, per result face, what it is made from (an operand
face it is the whole of or a piece of, profile segments, caps, operand edges a blend replaces),
and per result edge the operand edges it is or is a piece of (pieces_of); of_faces and attach
make the history of the result's record from that, every other edge the meeting of its two
faces, operand faces under several result faces marked Split. That is the one model in place
of the identity-based Operand, Rebuild/Was, traced/build/build_placed, edge_index/face_index/
edge_origins/edge_provs/edges_by_identity, from_faces, solid_counts and rebuilt/rebuilt_body,
and of the truck sweep followers (ruled, follow, columns, Column, swept_face), all deleted.
The face constructors, regions, counts, after and meeting stay. Tests read edge_faces of the
body's record.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The SMLib point sweep refused a polyline whose points turn gently (a smooth run
of more than two points), a branch on the shape of the input: a polyline is
the path its points make, and SMLib's cornered sweep mitres it at each point.
Curves with an exact form no longer reach the kernel as points (previous
commit); what still does (curves projected onto a face, intersection and iso
curves, sweep_path's point lists) is followed as those points.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
A sweep path through 3D sketch curves sampled every planar sketch curve in it
into a 0.01 mm polyline, and took every linked 3D curve as the points its link
stored, so SMLib got a many-cornered polyline (and refused a smooth one). Now:
- a planar sketch curve in such a path is its exact segments
(PathPiece::Segs of PathSeg::of_sketch over exact_segs);
- a linked curve whose source has an exact curve keeps it: Wire::exact holds
the record curves (WireCurve: schema 4 curve + interval) end to end along the
wire, set with the wire when the link is resolved: an included body edge its
record edge (kernel::brep_record), an included sketch curve leaving the plane
its segments (kernel::sketch_record_curve). Wire::map carries them with a
placement. The sweep follows them through kernel::curve_path (line, arc,
ellipse as rational quadratic spans, polyline, B-spline as Bézier spans).
- curves known only as points (projected onto a face, intersection and iso
curves: the link resolves them on the mesh) stay points.
Kernel, for the sheet and blend ports: planar_face_record (a profile face as a
schema 4 sheet record with exact pcurves), smlib_sweeps::chain_curves (a
segment chain as SMLib curves), body_from_record (any record into SMLib,
checked), sketch_record_curve; record curves from design files are checked in
curve_path. Format: pending/wire-exact-curves.rs.
lib.rs (coordinator): export SpaceBezier, curve_path, edge_path,
sketch_record_curve and planar_face_record from the kernel.
(not built: base in progress; kernel and sketch check clean, doc not reachable)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
PathSeg::Bezier(SpaceBezier) replaces PathSeg::Cubic: a rational Bézier span in
space of degree 1 to 9 (homogeneous control points), so a drawn spline's cubic
spans and an edge's own curve are one kind of segment, swept by SMLib as the
NURBS it is. SpaceBezier evaluates, differentiates (quotient rule on the
hodograph), measures and walks by length (Gauss-Legendre), reverses and maps.
edge_path gives a body edge's record curve as path segments exactly: a line,
an arc, an ellipse as rational quadratic spans, a polyline's lines, a B-spline
as its Bézier spans between knots (bspline::segment); an intersection curve
(no exact curve in the record) is refused. PathPiece::Segs carries such exact
curves in a point path; PathSeg gains reversed, mapped (a placement) and
of_sketch (a sketch segment on its plane). The cubic_* helpers are deleted.
surfaces.rs: its one PathSeg::Cubic arm follows the rename.
lib.rs (coordinator): export SpaceBezier and edge_path from point_path.
(not built: base in progress; cargo check shows no error in these files)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
extend_surface keeps its signature, options and error messages. One model:
SMLib extends the surface past a side of the face's parameter box
(smlib_extend_sheet, CreateExtendedSurface: natural continues the end spans,
tangent G1, curvature G2) and the face stays one face on it, tagged so the
face is Modified and its sides keep their edges. Several picked sides grow
the box on each. Up to a target, the face is extended 50 body sizes past
its edge and trimmed back with trim_keep (SMLib's exact intersection),
keeping the piece the face lies in. Back to the bounds is untrim of the
picked edge's face, in place, with its holes; one already there is
refused. A plane's straight edges with neighbours lengthened still go
through surfaces::extend. Edges are picked on the schema 4 record (samples
of each edge's curve), an edge two faces share or of a hole refused as before.
Not ported (every far edge there was a cubic fitted through marched
samples, which the exact-B-splines rule forbids): an edge that is not a
whole side of its surface's box (trimmed edges, curved planar edges such as
a disc's, a notch), mitred corners on such faces, sides run square to the
edge on a non-box face, and bodies of more than one face. These now answer
"not supported yet: ...". Tangent and curvature no longer add a separate
run-off face: SMLib's G1/G2 extension is one face (the engine's
surface.extend description says so).
Tests ported keeping their assertions: the planar extension, the cylinder
strip along its axis, around and both (now an extruded arc, not a truck
revolution), the extruded strip, the parabola extended naturally (now a
conic extruded), back to bounds (the saddle from loft_sheet and trim),
hostile requests. Deleted, as what they test no longer exists:
neighbours_lengthened_or_square, self_intersecting_extensions_are_refused,
a_disc_grows_by_its_curved_edges, neighbouring_faces_extend_together, the
tangent/curvature run-off half of the B-spline test, and
a_continued_bspline_is_unchanged_on_its_range (the deleted continue_span).
SMLIB_REV: fork 9531966 (tags carried through untrim and extend).
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
untrim keeps its signature and messages. The face is picked in SMLib by a
point inside it (the centre of its largest mesh triangle), holes by their
points; SMLib deletes the holes or rebuilds the face over its surface's
parameter box with the holes kept (fork c6c7fb4). The body goes tagged as
operand 0, so faces and edges come back with their origins; the untrimmed
face is Modified. A face whose span goes all the way round its surface now
closes on the seam instead of being refused.
solidcraft-smlib: Brep::untrim_face (ffi/trim.rs, trim.rs) and
Error::NotExact for SMLIB_ERR_NOT_EXACT.
Tests: ported to the record (loops counted on brep_record; the saddle made by
loft_sheet and trim instead of truck types; the torus face copied out by a
point). Deleted: the_outer_loop_is_found_whatever_order_the_loops_are_in: it
built a truck face listing its hole first; SMLib's import always puts the
outer loop first, so the case no longer exists.
(not built: base in progress)
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
trim / trim_keep / mutual_trim keep their signatures and behaviour; the
truck walk over the split solid is gone. The body is split where the tool
meets it (splitface::split_any), each piece's side is the tool's field at
the centre of its mesh triangle where the field is largest (the record
mesher), regions come from splitface::regions, and the pieces not kept go
through remove_faces, whose history record::after carries back to the
body. A mutual trim's nearest boundary edge is found on the schema 4
record: edges one face uses once, their middles through CurveEval.
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
A solid body holds its record (canonical faces, edges and vertices are the body's everywhere) and
builds its SMLib body from it on first use, or keeps the one the operation made. Queries read the
record: planar faces, outline and exact bounds, counts, closed shells, lumps from its material
regions (record parts, with their history), shell nesting from its regions. The orientation mesh,
the revolved-face rephasing, kept tolerances and the old kernel's mesh caches are gone. History's
edge faces come from the record's edge uses. The kernel no longer depends on the old kernel's
crates; SMLib's crate is a plain dependency (without the smlib feature it answers not built).
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
patch_loop picks the closed loop among the record's edges, certifies a plane (lines by
their ends, splines by their control points, conics by centre and tilt, traced curves by
a planar support) or fits the height field, and assembles one face on the body's own edge
records; the height field's parameters are plane coordinates, so each line or spline
edge's pcurve is its exact projection (segmented to the edge's interval). The history
marks the face generated and each edge the body's own. A fit on circular, elliptic or
traced edges, whose pcurves on the spline have no exact form, is refused by name, as is
the general fill (G1/G2, points, loops bounding no height field) until it is ported.
Tests ported to the record; the general-fill ones stay and fail until then.
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
corner_g2_patch builds the same tensor patch and returns CornerPatch: the B-spline
surface record, its v = 0 boundary line (the net's first column on the same u knots)
and each side's interval of it, so the seams lie on the patch exactly without cutting
the curve. The fold check and seam_error read the record surface through SurfaceEval.
Tests ported (the rolling ball is a sphere record).
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
Edges, the faces each bounds and each face's outward side come from the schema 4
record; stations on the edge's curve (CurveEval::derivs for its tangent) are projected
onto each face's SurfaceEval, and the normal curvature across the seam is read from the
surface's exact second derivatives (SurfaceEval::second). Behaviour, budgets and
messages unchanged.
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
fair_bspline_curve/_surface and fair_nurbs_curve/_surface take and give the schema 4
record's Spline and RationalSpline kinds (the weights kept, the knots unchanged).
fair_faces fairs the picked faces' surfaces in the body's record, keeps its loops,
edges, vertices and pcurves, and has SMLib build the body; its history marks the
faired faces modified and every edge kept when SMLib keeps the record's order, and is
left off otherwise. Tests ported to the record types with their assertions.
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The faces' descriptions become a record with exactly the topology they give: vertices
and edges shared by key (lines, circles or flat arcs as their exact rational quadratic,
Bezier chains as B-splines), planes about the boundary's mean, revolved lines as
cylinders, cones or planes, extruded arcs as cylinders, ruled walls as B-splines with
exact iso-line pcurves. assemble() groups faces into shells, puts closed shells in
regions (a cavity where the outward normals enclose negative volume, in the solid whose
winding number about it is one), orders everything canonically and validates it.
SMLib imports the record as trusted; the body and the face each body face came from
follow SMLib's order. The edge-sheet and vertex-fan logic for touching bodies is kept.
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
assemble (records rebuilt after removing and adding faces) joins; the boolean guards that re-ran
a failed boolean with a changed tool (bore_guard, candidate_reach, sphere_lens, tangent_cylinders,
touching_walls) are gone; the lens-cut result stays as a boolean test. SMLIB_REV at the fork's
integration head with smlib_merge_faces.
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
heal: a body's faces on one surface merged and its edges on one curve joined by SMLib
(Brep::merge_faces, SmBrep::RemoveTopologicalEdgesAndVertices), the edges along its split lines
kept, with SMLib's history over the body. Its booleans already end the same way
(SmMerge::BooleanPostProcess). The truck healing is deleted with what only it did: coplanar and
collinear merges by hand, flat surfaces rebuilt as planes, and approximate edges refitted as
lines or arcs from samples. on_split_line stays; edge_points reads a record edge.
Deleted, with no port: the retries around the old boolean's failures (touching_walls,
bore_guard, tangent_cylinders, sphere_lens, tool_reseam, candidate_reach). Each re-ran a failed
boolean with a changed tool or split faces; SMLib's boolean is the one path, and a case it
fails is its defect to fix there. Their own tests go with them (the helpers' unit tests in
issue_788_tests, bore_union_tests, candidate_reach_tests, and sphere_lens' relaxed-tool test);
the #2750 lens cut's result test stays, as a boolean test, without the retry diagnostics.
Heal's tests built truck prisms and a truck spline edge: deleted.
(not built: base in progress)
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The neighbours of the deleted faces are rebuilt from the body's record: each keeps its own
plane (every moved corner lies on it) and its edges away from the gap; corners on the gap move
to where the neighbouring planes meet, and the gap closes with straight edges shared between
the rebuilt faces. Moved and restored edges are recorded as pieces of the edges they replace
(assemble.rs: Assembly::piece), so the history is as before: untouched faces kept, neighbours
modified, edges kept, pieces of their edges, or where their faces meet.
Test deleted: delete_pocket_keeps_an_imported_face_around_it bowed the edges of a truck body in
place to show that a face losing only whole loops keeps its surface; a record body has no such
in-place edit, and every rebuilt face now keeps its own surface.
(not built: base in progress)
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The band is built on the body's record: the face keeps its other loop and the band's edge, the
walls rise along the face's loop (continuing the walls below) and along the band's edge
(planes along lines, cylinders along arcs), and the band's top is the face's plane moved up.
Each face is given with its outside, so no orientation is tried: the eight flips the old
construction tried in turn are gone. rim_band reads the loop's lines and arcs from the record.
History as before (the trimmed face, each wall from its loop edge, the top an offset).
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The emboss is built from the body's record: the wall's face loses the profiles' footprints,
each profile adds planar walls and its cap on the wall's cylinder at the new radius, and SMLib
builds the body from the finished record (assemble.rs: a record taken apart and finished again
in canonical order, pcurves from the record's routine for new uses, the record's own for kept
ones). surf_of and with_same_surface read the record's analytic surfaces; the topological
offset and draft that only the old kernel used are deleted (SMLib's offset faces and draft in
offset_backend replace them).
#3782: the saved pick had to lie on the half of the wall the sketch is tangent to (its angle
inside that face's span). The wall is every exterior cylindrical face of the body (a stepped or
interrupted cylinder is refused before), so the pick is checked on the cylinder between the
endcaps. The sleeve test's far-side pick now succeeds; a pick on the bore is still refused.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The fork's shims now hold an operation SMLib reports done to having done
something (SMLIB_ERR_NO_EFFECT, -1107: a blend that made no face, a face
move or draft that moved no face). It maps to Error::NoEffect, and the
kernel says "SMLib made no change: ..." for blends and for offset, shell
and draft. Case 1080 (chamfer over openings) returned an unchanged body
as success.
The fork pin moves to 6bb2938: the chamfer side fix of the piecewise
merge, the no-effect contract, and SmStatus marked must-use with the
dropped statuses of the shims and of the fillet, boolean, offset and sweep code passed on.
(not built: base in progress)
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
faceted_boolean (a body with a closed triangle mesh) faceted the body's curved faces and ran
its own BSP polygon boolean, then rebuilt a truck solid. It now builds the mesh into a
solid: each run of coplanar triangles sharing edges (corners within `tol` of each other's
planes) one planar face, its boundary chained into loops (split where a loop passes a vertex
twice, holes given to the innermost outer loop), sewn with sew_touching; SMLib's boolean
takes it with the body, whose faces stay exact. The history over [a, mesh] is the boolean's
over [a, tool] with the tool's own over the mesh substituted: each tool face from its
triangles, each tool edge the meeting of the runs either side.
Deleted with the BSP and the rebuild: planar_boolean and sliced_planar_boolean (the truck
boolean's exact fallback for touching planar faces: on SMLib the boolean is one path),
reassembled and split_beside (prism_local's), components_in_order (truck shell order) and
the tests of what no longer exists (face_planes diagnostics, the planar fallback beside a
plate's small rounds).
lib.rs (coordinator): `pub use polybool::faceted_boolean;` (planar_boolean is gone).
(not built: base in progress)
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Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
The prism module kept two things: the 2D arrangement of planar regions
(planar_regions_boolean, and extrude_planar_regions, which normalises the material with it,
proves the pieces apart and extrudes them with crate::extrude, SMLib's extrusion with its
face sources), and a second route to the solid boolean: prism operands read section by
section, the result sewn and its history rebuilt from section tags (prism_boolean,
prism_union_between_caps, the stacked and free-form variants, prism_lineage.rs) and the
column-local variant (prism_local.rs). On SMLib a boolean is smlib_boolean, with SMLib's
own history: the second route is deleted, with its tests (prism_spline_tests.rs, the
stack/prism tests in planar_tests) of what no longer exists.
The section tags shrink to what the arrangement uses: the free-form segment a fitted arc
stands for. wall_along reads a record surface (cylinder, revolved line, spline net) for
clearance.rs. The 2D tests and the wall test keep their assertions.
lib.rs (coordinator): drop `mod prism_local;`.
(not built: base in progress)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017itGh5fpMEousnZ91cYcVt
jyvikoandClaude Opus 5.5