Extends the Phase 2.2 per-entity memo to the common modify commands, which
still did a full bump_geometry (whole-model re-tess + block rebuild):
- transform_entities (MOVE / ROTATE / SCALE / MIRROR) marks each
transformed handle dirty, then bump_geometry_no_blocks;
- erase_entities drops the deleted handles from the memo and
bump_geometry_no_blocks;
- copy_entities' new handles are natural memo misses, so just
bump_geometry_no_blocks.
All three are top-level operations (including on inserts) that can't change
a block definition, so keeping the block cache is sound. Each now
re-tessellates only the touched entities and reuses the memoized wires for
the rest, matching the grip / line-commit path.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 2.2. wires_for_block_culled re-tessellated every visible entity on
any geometry bump, so a single-entity edit cost a full model re-tess
(~30ms baseline after the block_epoch fix).
Add a per-entity memo (tess_memo: Handle -> Arc<Vec<WireModel>>) on the
culled Model render path. It's guarded by a hash of the tessellation
parameters (tol / view / anno / world_offset / bg / entered viewport); a
mismatch (zoom, layout switch) clears it. The render path now classifies
the visible set against the memo, materializes hits and tessellates only
the misses in parallel, then stores the misses back.
- bump_geometry clears the memo (structural change — safe default);
- incremental edits drop just the changed handle via mark_entity_dirty
and bump with bump_geometry_no_blocks: line commit (new handle is a
natural miss) and grip commit / Esc-cancel (mark the dragged handle).
The hit-test (view_aabb == None), paper and per-viewport paths bypass the
memo so their differing cull parameters don't thrash it. A single-entity
edit now skips the per-entity geometry math for the entire unchanged set;
the Vec assembly + batched-buffer upload stay O(N).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The block-definition tessellation cache (BlockCache::build — every block
defn) was keyed on geometry_epoch, so every edit rebuilt all block defns.
On a block-heavy drawing that turned the ~30ms visible-wire re-tess into a
~400ms spike at line-commit, grip first-move and grip release.
Key the block cache on a separate block_epoch. bump_geometry bumps both
geometry_epoch and block_epoch (safe default — xref, block create,
explode, REFCLOSE, undo, open all keep rebuilding blocks). Operations that
provably can't change a block definition now call bump_geometry_no_blocks,
which bumps only geometry_epoch so the visible wires re-tessellate against
the reused block cache:
- add_entity for a non-Insert/Block entity (line, arc, text, hatch, …) —
scene.add_entity only ever routes to model/paper space, never block
content;
- grip drag hide / commit / Esc-cancel — moving a top-level entity or an
insert never edits a block defn.
Line-commit and grip start/end drop from ~400ms to the ~30ms baseline.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Command-preview / interim / grip-drag wires were appended into the main
wire buffer (all_wires), so every drag frame re-packed and re-uploaded the
entire batched base set — O(N) per move even though only the small overlay
changed.
Split them out: build_primitive keeps `wires` as the cached base only and
passes the overlay as a separate `preview_wires` Arc. The base keeps the
stable tile content id (no per-frame nonce), so its buffer stays resident
and is not re-uploaded during a drag. The overlay uploads to its own small
gpu_preview_wires buffer each frame and draws on top in the wire pass
(same pipeline, same order/depth). The dragged entity still renders
highlighted via its selected-path tessellation.
With the no-re-tess changes, a grip / command drag now costs a single
small overlay upload per move and nothing else.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 2.2 (partial). Dragging an entity's grip called scene.apply_grip on
every mouse move, which bumped geometry and re-tessellated the whole model
per move (plus an O(N) clone of every wire to exclude the edited one from
snapping). On a large drawing that's the 30ms->400ms spike, per frame, for
the duration of the drag.
apply_grip no longer bumps. The drag flow now:
- first move: hide the edited entity from the base tessellation (one
re-tess) and record it in grip_preview_handle;
- each move: apply the grip to the doc (no bump) and show the entity as a
one-entity overlay preview (set_preview_wires) — the base is a cache hit;
- commit on release / Esc: un-hide, drop the preview, one final re-tess.
Because the edited entity is hidden, it's already absent from
hit_test_wires, so snapping runs against the cached set directly — no
per-move clone and no self-snap. Two re-tessellations per drag instead of
one per move.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 2.2 (partial). set_preview_wires / clear_preview_wire /
set_interim_wire called bump_geometry, so every rubber-band frame of a
drawing command invalidated the wire cache and re-tessellated the whole
model — the same 30ms->400ms spike as selection, but while drawing.
Preview / interim wires are an overlay appended to the cached base wire
set in build_primitive; they are not part of the tessellation cache, so
they no longer bump geometry. The base model-tile tessellation stays a
cache hit (static camera, no geometry bump), and the overlay still forces
a GPU wire re-upload through the has_overlay content-id path. Real commits
(commit_entity / transform / copy) bump geometry on their own, so finished
edits and preview-clear still render correctly. Snap/hit-test via
entity_wires_arc also stops re-tessellating per preview frame.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Picking an entity called bump_geometry, which invalidated the wire cache
and re-tessellated the entire model just to repaint one entity — 30ms to
400ms on a large drawing (visible as a tess-ms spike on the PERF HUD).
Selection highlight is no longer baked into tessellation. wires_for_block_
culled now feeds tessellate_entity an empty selection set, so wires are
always base-coloured and the wire cache is selection-independent. The
highlight is applied in the GPU xray overlay: prepare filters the cached
wires by the live `selected ∪ hover` handle set, recolours them to
WireModel::SELECTED, and batches them — rebuilt only when a new
selection_generation (or the underlying wire content) changes.
Pure select / deselect / hover paths now call bump_selection instead of
bump_geometry, so a pick refreshes just the overlay — no re-tessellation,
no main wire re-upload (geometry_epoch and wire_content_id are unchanged).
Geometry edits, undo and file-open still bump_geometry and rebuild
everything. Grips/properties refresh through their existing app paths.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 3.3. upload_wires built one GPU instance buffer + one draw call per
WireModel — tens of thousands on a large drawing, a major per-frame CPU /
driver cost. Merge maximal runs of consecutive wires that share scissor +
mesh-edge state into one concatenated instance buffer each (WireGpu::
from_run); the existing draw loop then issues a single draw per run. A 2D
model (uniform None scissor, no mesh edges) collapses to one buffer + one
draw.
Runs are consecutive, never globally regrouped, so the sorted wire order
is preserved exactly — depth-biased overlap and alpha blending both
resolve in submission order, so the image is unchanged. from_run
guarantees instance order (index-ordered collect + sequential flatten).
The WireInstance layout, shader, scissor projection and draw loop are
untouched; only buffer packing changed. Selection overlay stays per-wire.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
build_primitive ran split_face3d_wires every frame — for each wire a
string-parse + document handle lookup + clone, to separate Face3D wires
from the rest — even when a pan had just reused the tessellation. The
split is content-only, so memoize it by the Model-tile wire content id:
a pan-reuse (same id) reuses the split, and the common no-overlay frame
returns the cached `other` Arc with zero clone. Preview/interim frames
clone once to append. Non-tile paths split inline as before.
Completes the cheap-pan path: a pure pan now reuses the CPU
tessellation, the Face3D split, and the GPU wire upload — only the
view_proj uniform and per-frame scissors recompute.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 3.2 (wire pan path). Wire vertex buffers are world-space, so a
camera move changes only the view_proj uniform (uploaded every frame),
never the wire data — yet upload_wires re-ran on every camera_generation
tick, re-packing vertices and re-writing the GPU buffer on each pan.
Stamp every Model-tile re-tessellation with a monotonic content id
(WIRE_CONTENT_GEN), reused when a pan reuses the tessellation. The
pipeline records the resident buffer's id and skips upload_wires when the
incoming id matches. The gate is pulled out of the (epoch, camera_gen)
block so a preview/interim wire change still uploads even with a static
camera; non-tile paths and overlay frames force a fresh id, preserving
current behaviour. Monotonic id sidesteps the ABA hazard a freed/realloc'd
Arc pointer would carry.
Pairs with the pan tessellation reuse: a pan now skips both the CPU
re-tessellation and the GPU wire upload.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 3.1 (partial — pan). The Model-tile wire cache keyed on the exact
camera hash, so every pan re-tessellated the whole tile even though pan
changes neither the curve tol nor the culled set (beyond a shift). Re-key
on (geometry_epoch, pan_invariant_hash, tessellated_region):
- pan_invariant_hash covers rotation + wpp (tol) but excludes the pan
target, so a pure pan keeps it stable;
- the wires were culled to a 1.25x-margin region, recorded with the entry;
- a hit now also requires the tile's current visible rect to still fit
inside that region, guaranteeing every on-screen wire is present.
Result: panning within the existing margin reuses the tessellation (tess
ms -> ~0 on the PERF HUD) with no missing geometry. Zoom, orbit and edits
change the signature/epoch and rebuild as before; the cull margin is
unchanged so miss cost — and zoom behaviour — is identical. GPU still
re-uploads per camera_generation (diff upload is Phase 3.2).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Extends Phase 2.1. compute_block_aabbs resolved each defn's union AABB
serially via defn_aabb_recursive, which only reads the finished defns map
and re-walks shared nested defns with no memoization — real cost on
block-heavy drawings. Split into a parallel read phase (per-name resolves
fan out over rayon) and a serial write-back phase. BlockCache is Sync, so
sharing &self across the read phase is sound.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 5.3 (CPU tessellation slice). Add a `PERF` command that toggles an
overlay on the active viewport showing the cost of the most recent wire
re-tessellation: ms, wire count, geometry epoch. Anchored top-left via
position_canvas_overlay.
Timing is captured at the wire-cache miss paths (model_tile_wires_arc,
paper_sheet_wires_arc) and stored in Cells on Scene, read directly by the
UI view (Scene is single-threaded / Rc-based, so build_primitive and view
share a thread). Reads ~0 ms on a warm cache, so it isolates the exact
work a miss costs — the slice 2.2 / 3.1 / 3.3 each move, making them
PR-to-PR comparable.
GPU upload/draw/GPU-wait spans (need wgpu timestamp queries) remain open.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 3.1 (partial). set_hover_highlight bumped the geometry epoch on
every hover-target change, forcing a full model re-tessellation. The
hover handle is folded into the tessellation highlight set as
selected ∪ {hover}, so hovering an already-selected entity contributes
nothing — the effective set and every resulting WireModel are identical.
Guard the bump on the effective highlight contribution actually changing;
hovering over or between selected entities is now free. The field is
still updated so hit-test / UI state stays current.
The full camera/selection-from-tessellation cache split (3.1 / 2.2) is
left open: highlight colour is baked into WireModel.color across several
tessellation sites, so decoupling it needs running-app verification.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 2.1. build_defn stores nested INSERTs as by-name references and
never expands them at build time, so each block defn depends only on the
read-only doc — the builds are independent, not topologically ordered as
the roadmap assumed. Replace the serial loop with a rayon
par_iter().collect(). render_style_for / tessellate already run under
rayon in build_derived_caches, so thread-safety is established.
compute_block_aabbs stays serial (resolves nested refs, cheap post-pass).
Cuts first-frame block tessellation on insert-heavy drawings.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 5.2. Time each open phase — parse, purge, derived-cache build on
the loader thread, plus xref resolve on the UI thread — and emit a
breakdown line on open completion:
parse 1240ms · purge 80ms · caches 340ms · xref 60ms · total 1820ms
Makes open-time regressions (and the wins from 1.1 / 2.4) visible at a
glance. Timings ride back on DerivedCaches; total is wall time from the
Open click to post-xref.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 4.1. Handle / u64 keys dominate the hot maps (block_defn,
hatch / image / mesh caches, draw-depth map, viewport wire caches);
the default SipHash is wasted work on integer keys. Alias the std
types to rustc_hash::FxHashMap / FxHashSet crate-wide so every map and
set — including the cross-module draw-depth map shared between scene
and the GPU pipelines — uses the faster hasher consistently.
Mechanical: no behavioural change. Constructors moved from ::new() to
::default() (Fx variants carry no RandomState). Build + 13 tests green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Phase 1.1: resolve_xrefs now purges corrupt entities inline as it
merges each xref and returns the dropped count, removing the second
full-document purge_corrupt_entities walk in the FileOpened handler.
Every xref-bearing open saves one O(N) entities() pass.
Phase 2.4: split compute_world_offset into offset_prep / offset_centroid
/ world_offset_from_centers; centroid accumulation now rides the existing
cache-handle walk in build_derived_caches. Two O(N) entity walks collapse
into one, with identical MSPACE-membership filtering preserved.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Joining the OpenAEC Foundation (open-aec.com). Crate/struct become
OpenCADStudio, user-facing strings use the spaced "Open CAD Studio"
form, repo URLs point to HakanSeven12/open-cad-studio. Logo (window
icon + assets/logo.svg) redrawn with OCS initials. Drop examples/
binaries — unused.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Tracks planned work for cutting file open time and per-frame render
cost: single-pass entity walk, incremental wire cache, batched wire
pipeline, hardware-instanced block inserts, and profiling spans.
Unignore ROADMAP.md so it's tracked.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Lists 33 stub commands across Insert, View, Manage, and Annotate tabs
with descriptions and Low/Medium/High complexity estimates.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Refactors solid3d_tess to share tessellate_sat() across Solid3D,
Region (2D planar ACIS body), and Body (3D ACIS body).
populate_meshes_from_document() and add_entity() now tessellate
all three entity types into GPU MeshModels when ACIS SAT data
is available.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Opens a reference panel listing all built-in keyboard shortcuts
(F3-F12, Ctrl+N/O/S/Z/C/X/V, etc.) and any user-defined overrides.
SHORTCUTS LIST — open the panel
SHORTCUTS SET <k> <c> — add/update a custom shortcut label
SHORTCUTS CLEAR <k> — remove a custom entry
Custom shortcuts are stored in app state (runtime only) and shown
in the panel alongside the hardcoded bindings.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds active_theme: Theme field to app state and wires the daemon's
.theme() callback to use it dynamically. COLORSCHEME <name> switches
among all 19 built-in iced themes (Dark, Light, Dracula, Nord, Tokyo
Night, Gruvbox, Kanagawa, Moonfly, Nightfly, etc.).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Panel overlay showing all layouts with their active status.
Supports: select, rename, new, delete, reorder (◀▶), set current.
Also adds Scene::swap_layout_order() for tab-order resequencing.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Opens a panel overlay showing all 255 ACI entries with their current
overrides (color, lineweight, screening). Allows editing entries
interactively, creating a new identity table when none is loaded,
and saving the modified table back to a CTB/STB file.
Commands: PLOTSTYLEPANEL, PLOTSTYLEEDITOR, STYLESMANAGER
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
BOX, SPHERE, and CYLINDER build truck topology solids and tessellate
them into MeshModels stored alongside a Solid3D placeholder entity so
the GPU mesh pipeline renders them immediately.
EXTRUDE picks any closed 2D profile (Circle, LwPolyline, etc.),
attaches a planar face via try_attach_plane, and translational-sweeps
it (tsweep Face → Solid) along Z by the given height.
REVOLVE picks a profile, two axis points, and an angle (default 360°),
then rotational-sweeps the wire (rsweep) around the axis.
Three new CmdResult variants drive the operations:
CommitSolid3D, ExtrudeEntity, RevolveEntity.
Scene::layer_color() added to retrieve the active layer's RGBA color.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
REFEDIT picks an INSERT, extracts the block entities into model space
with the INSERT transform applied (translate + rotate + uniform scale),
and enters an editing session. Any normal modify command works on the
temporary entities.
REFCLOSE SAVE applies the inverse transform, replaces the block
definition, and rebuilds all derived caches (hatch/image/mesh), so
every INSERT of that block reflects the edits immediately.
REFCLOSE DISCARD removes the temp entities without changing the block.
Non-uniform-scale inserts are rejected with an error message.
RefEditSession is stored on DocumentTab; undo snapshots bracket the
begin and close operations.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
All main render pipelines (wire, hatch, image, mesh) now use 4×
multisampling. Drawing passes render to a dedicated MSAA color buffer;
a final empty resolve pass transfers the anti-aliased result to the
iced surface target. The ViewCube renders post-resolve at 1× to avoid
pipeline incompatibility. Depth buffer also upgraded to 4× MSAA.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Exports all tessellated 3D mesh models in the current drawing to a
binary STL file via a save-file dialog. Normals are taken from the
MeshModel where available, otherwise computed from triangle vertices.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Three-dimensional rectangular array: prompts for rows, columns, levels
and their respective spacings, then generates copies translated along
X (columns), Z (rows in drawing plane), and Y (levels / height).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Viewport right-click now shows a proper widget-based context menu:
- When a command is active: Cancel / Enter
- Otherwise: Repeat last commands, Delete/Move/Copy (if selected),
Select All, Zoom Extents
CONSTRUCTIONLINE added as an alias for XLINE (XL).
Canvas-drawn placeholder removed; context menu closes on Escape,
click-outside, or when any action is taken.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
When inserting a block that contains AttributeDefinition entities,
the INSERT command now enters an attribute-filling phase: each attdef
is prompted tag-by-tag (showing its prompt text and default value).
Pressing Enter accepts the default. The completed AttributeEntity list
is embedded in the Insert before committing.
Blocks without attdefs continue to insert immediately as before.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- snap/mod.rs: Snapper gains otrack_enabled, tracking_points, dwell state;
update_otrack_dwell() acquires a snap point after DWELL_THRESHOLD=4
consecutive moves near the same position; otrack_snap() returns an
H/V alignment snap position; clear_tracking() resets state on command end
- overlay.rs: selection_overlay accepts ost_points + cursor_screen;
draws light-blue dashed H/V lines from acquired points + small cross marker
- statusbar.rs: OTRACK pill (F11) added next to DYN
- view.rs: projects tracking_points to screen, passes to selection_overlay
- update.rs: calls update_otrack_dwell + otrack_snap in ViewportMove;
overrides effective point with OST alignment when no normal snap is active
- ROADMAP.md: Object Snap Tracking marked ✅
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- ordinate_dim.rs: OrdinateDimCommand picks feature point then leader
endpoint; auto-detects X vs Y ordinate from movement direction
- Ordinate dim added to the Dimensions dropdown in the Annotate ribbon
- ROADMAP.md: DIMORDINATE ✅, Named UCS (already implemented) ✅
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- attedit.rs: AtteditCommand picks an INSERT entity then iterates through
each attribute tag prompting for a new value (Enter keeps existing)
- attedit_pending_handle() / attedit_set_attrs() trait methods inject
attribute data into the command after entity-pick (avoids document access
in the command itself)
- cmd_result.rs: NeedPoint handler injects attr data; ReplaceEntity detects
the __ATTEDIT__ sentinel and calls apply_attedit() on the document
- apply_attedit() encodes tag/value pairs as __ATTEDIT__tag\x01val\x02...
- ROADMAP.md: ATTEDIT marked ✅
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- splinedit.rs: SplineditCommand picks a spline (entity-pick phase) then
accepts CLOSE/OPEN/REVERSE/EXIT sub-commands via text input
- apply_spline_op() mutates the spline in the document directly, with knot
vector regeneration via generate_clamped_knots()
- Sentinel XLine trick: ReplaceEntity with a magic __SPLINEDIT_* layer name
is intercepted in cmd_result.rs before erasing the original entity
- Control-point dragging already works via the existing grip editing system
- ROADMAP.md: SPLINEDIT marked ✅
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- overlay.rs: dynamic_input_overlay() canvas widget draws a semi-transparent
coordinate tooltip near the cursor; shows X/Y in absolute mode or
dist/angle relative to last_point when a command base point exists
- statusbar: DYN toggle pill with F12 tooltip (calls ToggleDynInput)
- app/mod.rs: dyn_input: bool field (default true), ToggleDynInput message
- view.rs: builds DYN label and pushes overlay into viewport_stack when
dyn_input=true and a command is active
- document.rs: last_cursor_screen: iced::Point — updated on every ViewportMove
- ROADMAP.md: Dynamic Input overlay marked ✅
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- src/modules/insert/wblock.rs: extract_block_to_doc() copies a named
block's entities into a fresh CadDocument; extract_entities_to_doc()
does the same for a selection set; layer definitions are carried over
- WBLOCK <name> writes the named block; WBLOCK * writes selected entities
- WblockSave / WblockSaveResult messages drive the async save-dialog flow
- ROADMAP.md: 1.10 WBLOCK marked ✅
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Grid snap (F9):
• snap spacing now tracks the visible grid zoom level — computed via
compute_grid_step() (same adaptive pow-of-5 logic as draw_grid),
updated on every ViewportMove so zooming in/out keeps snap aligned
with the grid lines on screen
Polar tracking (F10):
• configurable angle increment stored in polar_increment_deg (default 45°)
• right-click the POLAR pill to cycle through 15 → 30 → 45 → 90°
• pill label shows current angle ("POLAR 45°")
• visual guide line: while drawing with polar on, a dashed cyan line is
drawn from last_point along the snapped direction across the viewport
• SetPolarAngle message + handler; all polar_constrain() calls use the
stored increment instead of the hardcoded 45°
ROADMAP updated: Grid snap and Polar tracking marked ✅.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Both commands detect which terminal segment/vertex is nearest to the
pick point, compute the new endpoint along the segment direction, and
move only that terminal vertex — preserving all other vertices and bulge
values intact. ROADMAP updated: EXTEND and LENGTHEN marked ✅.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add shared spline_ops module with:
- spline_to_bspline / bspline_to_spline: acadrust ↔ truck BSplineCurve conversion
- spline_sample_xy: sample DXF-XY projection at N+1 points with parameters
- spline_nearest_t: nearest-parameter search via coarse+bisection
- spline_pts_wire: world-space wire points for WireModel preview
TRIM: Spline entities can now be used as cutting boundaries (Geo::Spline
sampled into polyline segments) and as entities being trimmed; uses
BSplineCurve::cut() to produce surviving pieces.
EXTEND: extend_spline() shoots a tangent ray from the nearest endpoint
and appends a control point at the first boundary hit.
OFFSET: offset_spline() offsets each sample point along the local
perpendicular normal and rebuilds a new spline from the offset control pts.
BREAK: break_spline() uses spline_nearest_t() + BSplineCurve::cut() to
split the spline at one or two click points.
LENGTHEN: lengthen_spline() uses numerical arc-length integration +
bisection to cut the spline at the parameter corresponding to the new
requested length.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Decomposes Dimension (Linear, Aligned, Radius, Diameter, Angular2Ln,
Angular3Pt, Ordinate) into constituent Lines (extension lines, dimension
line) plus a Text entity for the dimension label value.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
