Add lengthen_ellipse() that approximates the arc length via 128-point
numerical integration, then bisects to find the new angular span matching
the requested delta/total/percent, and adjusts the nearer endpoint.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Add offset_ellipse() that scales both semi-axes uniformly by the offset
distance (inside vs outside determined by projecting side_pt onto the
ellipse local frame). This is the standard CAD approximation; a true
offset of an ellipse is a higher-order Lamé curve.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Add break_ellipse() that projects the two break points onto the ellipse
parameter space (eccentric anomaly) and removes the CCW segment between
them, producing a partial Ellipse entity — matching AutoCAD break behaviour.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
- Add Ellipse variant to the Geo boundary enum
- Implement algebraic line-ellipse intersection (le()) for fast boundary checks
- Add ellipse_seg_ts() using bisection for all boundary types including
Arc/Circle/Ellipse boundaries (64-sample sign-change + 32-step bisection)
- Add trim_ellipse() producing partial Ellipse entities with updated parameters
- Add extend_ellipse() to stretch an ellipse arc to the nearest boundary
- Wire Ellipse into TrimCommand and ExtendCommand: on_entity_pick,
on_entity_replaced, and on_hover_entity (live red/cyan preview)
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
- MLSTYLE command: LIST, NEW, SET, DEL subcommands
- Multiline Style Manager dialog: style list, element details (offset,
color, linetype), Set Current / New / Delete buttons
- MLINE/ML command now reads document header.multiline_style to apply
the current style to newly created MLine entities
- MlineCommand.with_style() constructor for style-aware multiline drawing
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Entity pick → text input subcommands:
C / CLOSE → set closed flag
O / OPEN → clear closed flag
W <value> → set uniform width on LwPolyline vertices
X / EXIT → cancel
Command stays active after each op (CmdResult::PeditOp) for multiple edits.
Supports LwPolyline and Polyline2D.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Pick vertices, Enter to finish (≥2 pts). Text input while picking:
C / CLOSE → close and commit (≥3 pts)
S <value> → set scale factor (default 1.0)
S alone → prompt for scale then continue
Uses acadrust MLine::from_points / closed_from_points + scale_factor field.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Pick polygon corners, Enter to close. Each edge is subdivided into arc
bumps (bulge = 0.5 ≈ 53° arcs). Result is a closed LwPolyline.
Arc bump length defaults to 1.0 drawing units.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Options via text input after entity pick:
DE <delta> — extend by delta (negative trims)
TO <total> — set absolute total length / arc length
P <percent> — scale by percentage
<number> — plain number treated as DE delta
Closest end to pick point is modified. Uses CmdResult::LengthenEntity.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Selection-gathering mode: select objects, press Enter to apply.
- Lines: checks collinearity + no-gap, merges into single line span
- Arcs: checks same center/radius + contiguous angles, merges to Arc or Circle
- Uses CmdResult::JoinEntities; geometry computed in cmd_result from document
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
3-step interactive flow:
1. Entity pick (first break point recorded at click location)
2. Optional first point refinement
3. Second break point → CmdResult::BreakEntity applied in cmd_result
Geometry:
- Line: project p1/p2 onto line parameter space → two line fragments
- Arc: project p1/p2 to arc angles → trim CCW from p1 to p2
- Circle: same as Arc, converts Circle → Arc
- LwPolyline: nearest-vertex split → two polyline fragments
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Add three classic CAD measurement commands:
- DIST (DI): two-point pick → distance, angle, delta XYZ
- ID: one-point pick → coordinates
- AREA: multi-point polygon pick (Enter to close) → area + perimeter
New CmdResult::Measurement(String) variant ends active command and
prints result to command line without modifying the document.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
- Deactivate ribbon tool highlight when command ends (issue #1)
- Reset last_point on new command dispatch to fix polar snap offset (issue #2)
- FILLET/CHAMFER: disable text input during entity pick so clicks reach viewport (issue #3)
- Dropdown icon buttons now use RibbonToolClick so they highlight blue when active
- FILLET/CHAMFER: AutoCAD-style sub-step UX — typing R/D + Enter prompts for value
- Fix FILLET arc preview plane: arc was rendering in XZ instead of XY
- Bump version to 0.1.1
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
Each command implementation is now in the same file as its ribbon
tool definition. Groups moved to a dedicated groups/ toolbar folder.
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
