The feature existed for one reason: truck's mesh and boolean crates reach
`vtkio → xz2 → lzma-sys`, a C library that cannot cross-compile to wasm32. So
the web build dropped it, and with it the Model tab, solid tessellation and
ACIS import — all of which quietly did nothing in the browser.
cadkernel is pure Rust and has no C dependency, so none of that holds any
more. The feature gated exactly two things by the end, `acis_export` and the
save-path sync that calls it, and both are as portable as everything around
them. Removing it means the web build makes primitives, runs booleans, draws
ACIS solids read from a file, and writes them back out as exact geometry — the
same as the desktop build.
Verified against all three: native, `--no-default-features`, and an actual
`wasm32-unknown-unknown` check rather than an assumption about one.
The docs claimed otherwise in four places and are corrected. `tessellation.md`
in particular was organised around whether an entity "goes through truck",
which is no longer a question anything can be asked — the three paths are now
a kernel B-rep mesh, a curve sampled through `entities::curve`, or geometry
emitted directly, and the per-entity table is updated to match.
`index.html` no longer passes `data-cargo-no-default-features`; there are no
features left to turn off.
Co-Authored-By: Claude Opus 5 <[email protected]>
Two things the truck removal broke without saying so, both found by auditing
what is left in the manifest rather than by anything failing.
The cfg gate on `acis_export` ended up on `acad_to_render` instead, when that
module was put back after being deleted by mistake. `acad_to_render` is what
every entity converts through, so gating it left the wasm build — which is
what `--no-default-features` stands in for — unable to resolve it from thirty
places. It built at the commit before the migration and builds again now.
And deleting TRUCK_CHORD_FRAC took the constant but left its doc comment and
its `#[cfg]` behind, so the attribute landed on the next constant down and
gated a boundary-sampling tolerance that has nothing to do with solids.
lzma-sys was the last dependency in the manifest with nothing using it: no
code references it and nothing else in the tree pulls it in. The `solid3d`
feature it hung off still gates four places, so the feature stays.
Everything else declared is used. `getrandom` and `iced_widget` look unused
by grep and are not — the first is declared to turn on the feature the wasm
target needs from a crate half the tree pulls in, and the second is a
`[patch]` entry rather than a dependency at all.
Co-Authored-By: Claude Opus 5 <[email protected]>
The last four truck crates are gone from the manifest. What they were doing
falls into three parts, and each now has one answer instead of two.
NURBS evaluation. truck was carrying B-spline curves and surfaces for the
SPLINE entity, hatch boundaries, BLEND's endpoint frames, the spline preview
and ACIS spline-surface faces. The kernel now has both, over one de Boor
written across however many coordinates a control point holds — so a plane
curve and a space curve cannot drift apart, and a surface is the same
algorithm applied twice. The rational and the polynomial cases stop being
separate types: weights absent means polynomial.
The entity conversion. Every LINE, ARC, ELLIPSE, SPLINE and polyline was
built into truck topology purely so it could be sampled back into points.
They are sampled through `entities::curve` now, which is where each one's
geometry is already defined once and what EXTRUDE and REVOLVE read — so a
circle drawn on screen and a circle handed to the Model tab come from the
same definition. That retires four of TruckObject's variants and the module
is renamed for what it does.
SWEEP and LOFT. Both only ever produced a mesh, so both are built from point
lists: a band of quads per span, and a lid where a profile closes. Lofting
profiles of different densities resamples them by distance rather than by
index, so a circle lofted to a square no longer twists.
Two things worth noting for anyone reading the old comments. The tolerance
globals that lived in the tessellation module were never about truck at all —
they are the per-frame chord height, and they move to `curve_tol`. And the
rule that a profile handed over as `Lines` silently broke EXTRUDE and REVOLVE
no longer holds: those read the curve directly and never look at this channel.
The two `automation` test failures are unchanged from before this and are not
caused by it.
Co-Authored-By: Claude Opus 5 <[email protected]>
Every 3-D solid OCS makes or opens now goes through cadkernel, which holds
analytic surfaces — a cylinder is a cylinder record, not a spline that looks
like one. That is what lets a solid built here be written back out as exact
ACIS instead of a triangulation, and a facetted export is a one-way door: the
next application to open the file would have no way back to the circle.
The Model tab's seven primitives, the Design-group booleans, 3DROTATE,
3DMIRROR, 3DALIGN, SLICE, SECTION, POLYSOLID and PYRAMID all come from the
kernel now, and `scene.solid_models` holds a `Body`. A mirrored solid needed
its own care before; the kernel reverses the loops on the way through, so it
comes back the right way out rather than lighting black.
EXTRUDE and REVOLVE sweep the profile `entities::curve` already defines, so a
circle, an arc-bulged polyline and a closed spline arrive as the same thing.
A circle extrudes into four cylinder patches rather than a run of chords, and
a profile turned about an axis becomes a cone, a sphere or a torus. A spline
profile has no analytic side wall and is refused rather than approximated.
ACIS goes both ways through the codec's own bridge: `lift` to read and
`append` to write. That drops the 679-line truck conversion and the planar-
only exporter, and the tessellator keeps its bespoke sampler as a fallback for
whatever the kernel cannot yet express — reported rather than passed off as
whole, since a mesh missing a wall looks finished.
truck-shapeops is no longer used and is gone from the manifest. truck-modeling
stays for now: fourteen files use it as a 3-D NURBS evaluator, which the
kernel has no answer for yet, and SWEEP and LOFT have no kernel operation
behind them either.
The two `automation` test failures are unchanged from before this and are not
caused by it.
Co-Authored-By: Claude Opus 5 <[email protected]>
An entity from an application we have no reader for — e.g. an Autodesk Raster
Design embedded raster image — now arrives as `Unknown` (acadrust 769741d) and
rendered as nothing at all, so the drawing silently lost it with no hint that
anything was there.
Such entities almost always ship proxy graphics: the vector preview their author
cached for precisely this case, and what AutoCAD itself falls back to when the
object enabler is absent. Decode it and draw it, so the entity holds its real
place and size.
The record grammar has no reference implementation to copy — LibreDWG keeps the
blob raw ("see par 29") and ACadSharp stores the bytes without parsing them — so
rather than infer a general decoder from one sample, `proxy_graphics` accepts a
single polyline record and only when the blob matches it byte-for-byte: sizes
must agree, the points must consume every remaining byte, and coordinates must
be finite. Anything else returns None and draws nothing, exactly as before, so
a file this does not model cannot regress or sprout invented geometry.
Verified on a Raster Design drawing: its 140-byte preview decodes with 0 bytes
left over to the image frame (1192.149 x 877.824, closed), matching what ODA
reports for the same entity. Unit-tested against that real blob.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Linetypes converted from MicroStation DGN keep their pattern in DGN line-style
objects (empty standard LTYPE), so entities using them drew as a plain line and
lost the symbols (e.g. a pipe's end circles). Walk the line-style tree
(resolved by name to its LSDefinition), collect the symbol components' anonymous
blocks, and draw each at the host polyline's endpoints, scaled by the symbol's
decoded scale (geometry / scale) so it matches the drawing (verified: a 0.75
ellipse renders at the file's intended 0.375 radius).
Bumps acadrust to 8e18c6b (DGN line-style symbol-scale decode). First pass: the
stroke dash pattern and exact per-vertex placement need more of the line-style
leaf decoded; the base line still draws solid.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
OCS models 3-D solids with truck, but extrude/boolean results carried no ACIS
body, so other CAD apps dropped them on open. Add an exact planar exporter and
run it at save time.
- scene::convert::acis_export::planar_solid_to_sat walks a truck Solid whose
faces are all planes bounded by straight edges into a vertex/face-ring mesh
and builds an exact ACIS body via acadrust's build_planar_body. Curved
faces/edges return None (left for the NURBS path). A signed-volume check
flips the winding if the shell comes out inside-out.
- OpenCADStudio::sync_truck_solids_to_acis fills in ACIS geometry for every
cached truck solid that still has none, just before a Save / Save-As, so the
written DWG/DXF carries real modeler geometry.
- Bump acadrust to 9142a50 (build_planar_body + classic-ACIS AcDs roundtrip fix).
Booleans (already cached as truck solids) now export exact geometry. Extruded
polygons will too once the EXTRUDE command caches its truck solid (a separate
change kept out of this commit because command_driver.rs holds unrelated
in-progress edits).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
scene/tess.rs held the free parallel-tessellation functions
(tessellate_entity, lod_stub_wire, entity_aabb, …) that the giant-file
split had left at the scene root. They belong with the rest of the
tessellation code, so move the file to scene/convert/tess.rs alongside
tessellate.rs / tess_util.rs and re-point the re-export.
Leaves the scene/ root as a consistent set of `impl Scene` method
groups; the free-function outlier is gone.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
First step toward a web build: the library now compiles for
wasm32-unknown-unknown with --no-default-features.
- Add a `solid3d` feature (default on) gating truck-meshalgo /
truck-shapeops / lzma-sys. These pull vtkio → xz2 → lzma-sys (C),
which cannot cross-compile to wasm. Without the feature the 3-D
solid path (tessellation, booleans, ACIS import) becomes no-ops;
2-D CAD is unaffected. Native builds keep the feature by default.
- Move native-only crates (ureq, open) to non-wasm target deps and
add cfg shims: update-check is a no-op on wasm, and a new `sys`
module provides open_url + handle_path (rfd FileHandle → PathBuf;
synthesizes a name-based path on the web).
Native build + all 75 tests unchanged. Browser runtime wiring
(entry point, trunk, real file I/O) is a follow-up.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Move the 30 flat modules under src/scene/ into six folders by role:
convert (entity→geometry), text (fonts/shaping), model (render models),
pick (hit-test/selection/grips/xclip), view (camera/transform/render),
cache (block + property caches). pipeline/ is unchanged.
Full path migration — all `scene::X` references become
`scene::<group>::X`, no compatibility re-exports. render.rs items that
were `pub(super)` (parent was scene) become `pub(in crate::scene)` to
keep their original scene-wide visibility.
No behavior change; build and tests are green.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Hakan Seven