A limits style whose upper and lower offsets are both zero prints the plain
value in AutoCAD, not a stack of two equal numbers. A three-point angular
dimension whose extension point sits on its vertex has no measurable angle;
AutoCAD keeps showing the angle it stored, and the text now does too instead
of reading 0 degrees. Both cases came out of comparing saved picture blocks
with regenerated text across a set of production drawings.
Dimensions with DIMLIM on were regenerated as the nominal value plus a
separate stacked pair, and the pair was built from the unscaled
measurement. AutoCAD prints only the upper limit over the lower one, with
the offsets applied to the DIMLFAC-scaled, DIMRND-rounded value, and keeps
both halves at the same number of decimals under DIMTZIN. Drawings with a
limits-only style looked right on load, from their saved picture blocks,
and gained an extra number as soon as an associative refresh dropped the
picture.
Fit and fill estimates now count visible cells, so a stack is as wide as
its wider half at DIMTFAC, and the text-to-line offset uses the stacked
height.
Grid snap locks to SNAPUNIT instead of magnetizing; snapped 3D points keep elevation instead of flattening to z=0. New SnapTypes Vertex/EdgeMidpoint/FaceCenter/Knot/FacePerpendicular/NearestFace with their own F4 master toggle and mode set, tiers, and markers, fully independent of the 2D master. Solid B-rep corners/edge-midpoints/face-centers from mesh edges and kernel faces, spline knot points, and live perpendicular/nearest-to-face on mesh triangles merged priority-aware in move/click paths. Drafting Settings 3D Object Snap tab is fully live (was dead placeholders); Nearest-to-face off by default. TDD: behavioral LINE-to-solid tests plus engine/scene unit tests.
Drafting Settings dialog gets text inputs for Snap X/Y spacing plus a working Equal X and Y checkbox (mirrored inputs, Y follows X on apply). Snapper gains fixed snap_spacing_x/y (persisted in UserSettings, default 10) decoupled from the adaptive visible-grid step. Grid snap no longer aperture-gated: with Snap On it rounds every point to the grid, object snaps still override by tier. Adds parse/lock regression tests.
Port press-to-capture dialog safeguards to the alias editor: transient top draft row with explicit accept, duplicate-alias and unknown-command danger styling plus persistent banners, reset-to-defaults with inline confirmation, Apply and Apply-and-Exit, alias count, Esc-cancels-draft-first, and unsaved-changes guard on close.
Refresh associations after complete SpaceMouse camera updates and recognize imported paper-space owners without Layout objects. Use kernel containment, intersection, perpendicular and spline tangent solving; pin cadkernel 7ce27f2 and add regressions.
Remove the dead catalog entry for the deleted XREF dead-end text and add the 389 source strings missing from the catalog (data extraction, drafting settings, panels, commands). Every locale gets the English text as placeholder under common/insert following existing practice. scripts/test_locales.py passes (5077 lookups).
Each menu row is now a single mouse_area that publishes on PRESS instead of a button nested in a mouse_area. iced_aw ContextMenu keeps its overlay element in the widget struct, so every view rebuild wipes the overlay subtree state - including a button's is_pressed between press and release - and release-time clicks published nothing. Headless simulator tests through the real overlay guard row clicks, flyout clicks, the Change Path Type hover trigger, and pin the subtree-reset mechanism. Requires iced_test as a dev-dependency; the Cargo.lock gpu-allocator/windows edge is pinned back to 0.62.2 (see docs/review-context-menu-click-delivery.md).
Row menu Select New Path and Find and Replace now act on the right-clicked row via dedicated XrefRowPathPick / XrefRowFindReplacePrompt messages (prefill + command-line focus, XOPEN output included). Rows use a RightClickArea wrapper so right-click selects the row even though ContextMenu captures the press, and opening or acting on the menu resets the Change Path Type flyout state.
The Change Path Type row shows a right-triangle affordance and reveals the Make Absolute / Make Relative / Remove Path submenu beside it. The flyout opens on hover only and a shared submenu-row style removes dead code from the earlier iterations.
Row right-click menu is exactly Open, Attach..., Unload, Reload, Detach, Change Path Type group with Make Absolute, Make Relative, Remove Path, Select New Path, Find and Replace. Change Path Type renders as indented group. Open uses OCS for DWG and OS default for images and PDFs. Preview decodes on selection change, not only at refresh. Details shows placed display width and height for image instances.
Detach and Bind on nested rows report the CLI-worded per-entry error instead of skipping silently. Adds GUI-path regression tests for every row operation on direct and nested rows, plus Reload All, Overlay, Change Path, and Find and Replace coverage.
External References dock default 360 to 460 for the column-rich table. Attach split button reads Attach DWG with Attach Image and Attach PDF options, all menu rows full width. List view shows one distinct glyph and theme color per reference status.
Right-click actions bound to the row under the cursor, split-button toolbar groups with shared borders and hover states, and a notice when an operation needs a selection first.
XREF command with status, reload, unload, detach, path, pathtype, bind, overlay, and attach options, plus guided XATTACH with unique naming and placement prompts.
Path normalization with stable keys, relative/absolute/none pathtypes, wildcard matching, and reference entries with loaded, stale, missing, and unreferenced states.
Problem
The open guard rejects circles and arcs with a radius below 1e-10. A normal
open fails when a drawing contains one. The user gets the recovery prompt.
AutoCAD and nanoCAD open these drawings.
The check came from ace99541. Its comment says the tessellator cannot sample
a degenerate curve. That was true of truck's parameter_division. Commit
8c7ebdc9 removed truck. Commit 96be8214 made the kernel sample circles and
arcs by sweep angle with a floored segment count. The reason for the check
no longer exists.
Change
- Remove the near-zero radius check for circles and arcs.
- Keep the checks for non-finite values and radii above 1e10.
- Update the guard comments. The purge rejects parser desync. It does not
reject degenerate geometry. Be generous in what you accept and strict in
what you produce.
- Add tests: a zero radius passes the guard, an absurd radius does not.
- Change the automation purge test sample from radius 0 to radius 1e11.
Behavior
- Zero-radius circles and arcs load. They render as dots.
- Tessellation, hit testing, snapping, and hatch boundaries accept a zero
radius.
- The DXF writer does not change.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Christopher Overbeck