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docs: refresh gaps.md and parity docs for landed features (#625) 

Squash of PR #625 by @vangel76.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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docs/file-format-parity.md
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# File-format parity
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (DXF/DWG saved at a chosen version 2000–2018, binary DXF written, #421) · **Target:** Autodesk AutoCAD 2027
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (code pages, #505; native MULTILEADER, #459; foreign data kept, #528; PDF text, layers and sheets, #567, #571; templates and user files, #552; plotter devices, #564) · **Target:** Autodesk AutoCAD 2027
Every format AutoCAD 2027 reads or writes, with CADCraft's support, fidelity and tests. Work
items are in [gaps.md](gaps.md#file-formats); the weighted score feeds
@ -63,8 +63,8 @@ early (#175), but the throughput problem remains. **DWG ≈ 30% read, ≈ 15% wr
| R12 binary | read, write | **no** (binary parser expects R13+ 2-byte group codes) | no |
| R13–R2018, ASCII | read, write each of 2000/2004/2007/2010/2013/2018 | yes, one reader for all versions | yes, each of 2000–2018 (#421): R2000 structure (later versions add only optional groups) with that `$ACADVER`; UTF-8 text from 2007; no CLASS instance counts (91) |
| R13–R2018, binary | read, write | yes | yes, each of 2000–2018 (SAVEAS `binary`; a binary file stays binary on QSAVE) |
| Code pages (`$DWGCODEPAGE`, ANSI_932/936/949/950/125x) | yes | **no**: UTF-8, else Latin-1, so pre-2007 CJK and Cyrillic files are garbled | writes `\U+` escapes (#169), which is correct |
| `\U+`/`\M+` escapes | yes | `\U+` yes; `\M+` not checked | `\U+` yes |
| Code pages (`$DWGCODEPAGE`, ANSI_932/936/949/950/125x) | yes | yes (#505): ASCII and binary DXF before 2007 decode from their code page (ANSI_874/932/936/949/950/1250–1258, DOS437/850/852/866, ISO 8859, Macintosh); a file that is valid UTF-8 reads as UTF-8; Johab and other DOS code pages read as ANSI_1252 (`dxf/src/codepage.rs`) | writes `\U+` escapes (#169), which is correct; declares `ANSI_1252` |
| `\U+`/`\M+` escapes | yes | yes (`\M+` since #505; Johab `\M+4` stays literal) | `\U+` yes |
### DXF content: read and write by object type
@ -75,21 +75,24 @@ early (#175), but the throughput problem remains. **DWG ≈ 30% read, ≈ 15% wr
| TEXT, MTEXT, ATTDEF, INSERT + ATTRIB | yes | yes | ATTDEF prompt kept (#137) |
| DIMENSION (all 7 kinds) | yes | yes, with anonymous `*D` blocks | a reopened dimension's `*D` block is regenerated under its name, unreferenced ones dropped (#495); DIMASSOC objects written |
| LEADER | yes | yes | |
| MULTILEADER | **no** (becomes Unknown) | **no**: our MLeaders are written as LEADER + MTEXT | MULTILEADER is AutoCAD's default leader since 2008 |
| MULTILEADER | yes (#459) | yes, native MULTILEADER with MLEADERSTYLE (#459) | several landings per multileader are folded into one; per-object overrides and annotative scale contexts not kept |
| HATCH pattern / solid | yes | yes | |
| HATCH gradient | yes | yes (#162, fixes #80) | |
| SOLID, TRACE, 3DFACE | yes | yes | |
| ACAD_TABLE | yes | yes (entity + block) | |
| VIEWPORT | yes | yes; frozen-layer lists kept (#150) | VP layer colour overrides lost (#99, PR #197) |
| IMAGE | partial (no IMAGEDEF, so the file path is empty) | **dropped** | |
| IMAGE | yes, with IMAGEDEF | yes, with IMAGEDEF and IMAGEDEF_REACTOR | no attach command or display of the picture yet (FF10) |
| WIPEOUT | yes | yes (#147, fixes #79) | |
| MLINE, REGION, 3DSOLID, BODY, SURFACE, MESH, TOLERANCE, SHAPE, HELIX, UNDERLAY, OLE2FRAME, LIGHT, CAMERA, SECTION, POINTCLOUD, proxy entities | kept as Unknown (raw tags) | written back as read, with their CLASS records (#528); **dropped by DWG save** (acadrust) | only their layer follows edits |
| MLINE (+ MLINESTYLE), HELIX, TOLERANCE | yes (#510, #420) | yes | |
| REGION | other programs' REGIONs (ACIS data) kept as Unknown | our regions are written as closed polylines tagged with CADCraft xdata (#510; ACIS has no public spec) | |
| 3DSOLID, BODY, SURFACE, MESH, SHAPE, UNDERLAY, OLE2FRAME, LIGHT, CAMERA, SECTION, POINTCLOUD, proxy entities | kept as Unknown (raw tags) | written back as read, with their CLASS records (#528); **dropped by DWG save** (acadrust) | only their layer follows edits |
| Header variables | all read | 36 written | AutoCAD writes about 280 |
| Tables: LAYER (+ transparency, description), LTYPE, STYLE, DIMSTYLE, BLOCK_RECORD | yes | yes | |
| Tables: VPORT, VIEW, UCS, APPID | **not read** | VPORT one record; VIEW and UCS empty; APPID yes | named views and UCSs lost |
| Tables: VPORT, VIEW, UCS, APPID | yes | yes: saved viewport configurations (#504), named views, UCSs | UCS elevation lost |
| Objects: LAYOUT, DICTIONARY, XRECORD, TABLESTYLE, DIMASSOC | yes | yes | |
| Objects: GROUP, MLINESTYLE, MLEADERSTYLE, IMAGEDEF, SCALE, VISUALSTYLE, PLOTSETTINGS, materials, field objects | ignored | not written (ACAD_GROUP empty) | groups lost |
| Foreign xdata, extension dictionaries, reactors | **not kept** | — | third-party application data lost |
| Objects: GROUP, MLINESTYLE, MLEADERSTYLE, IMAGEDEF, SCALE | yes | yes (groups #417, scale list #468) | |
| Objects: VISUALSTYLE, PLOTSETTINGS, materials, field objects and other unmodelled objects | kept raw (#528) | written back as read | not editable |
| Foreign xdata, extension dictionaries, reactors, unmodelled objects, colour books | kept raw (#528) | written back, handles remapped, references to deleted objects dropped | through DWG: xdata on table records and blocks, entity colour books and reactors, custom-class objects lost (acadrust) |
| Handles and owners | entity handles kept; others regenerated | consistent | stable across CADCraft re-saves (#495); other programs' table and object handles renumbered once |
**DXF ≈ 50% read, ≈ 30% write** (estimated; weights: common 2D entities 50%, annotation objects
@ -99,9 +102,9 @@ early (#175), but the throughput problem remains. **DWG ≈ 30% read, ≈ 15% wr
| Format | AutoCAD 2027 | CADCraft | Hours to parity (est.) |
|---|---|---|---|
| DWT templates | open, save | no (no template support) | 3–5 |
| DWT templates | open, save | NEW/QNEW from `.dwt` and `.dxf` templates, SAVEAS `.dwt` (#552) | 0–1 |
| DWS standards | open, save, CHECKSTANDARDS | no | 6–10 |
| PDF output (PLOT, EXPORTPDF) | multi-sheet, layers, searchable text, hyperlinks | vector PDF 1.4, one page, lineweights; **no font objects** (text is strokes), no layers (OCG), no multi-sheet | 10–15 |
| PDF output (PLOT, EXPORTPDF) | multi-sheet, layers, searchable text, hyperlinks | vector PDF with lineweights, real text in embedded TrueType subsets, layers (OCG), several sheets per file and hyperlinks (#567, #571) | 1–2 |
| PDF import (PDFIMPORT) and PDF underlays (PDFATTACH) | yes | no | 15–25 |
| Raster images attach (PNG, JPEG, TIFF, BMP …) | yes | IMAGE entity exists, no attach/loading/display path | 6–10 |
| PNG / JPEG / BMP / TIFF export | PNGOUT, JPGOUT, BMPOUT, TIFOUT | PNG; SVG too (AutoCAD doesn't export SVG) | 1–2 |
@ -109,13 +112,13 @@ early (#175), but the throughput problem remains. **DWG ≈ 30% read, ≈ 15% wr
| DGN import/export/underlay | yes | no (needs a public spec; owner decision) | 25–40 |
| WMF, EPS, ACIS SAT, STL, FBX, IGES/STEP (Windows), 3DS | various | no; most are 3D and wait for M11 | 20–40 |
| SHX fonts (`.shx`, big fonts) | read | **not parsed**: our stroke font or FONTALT stands in, so text metrics differ from AutoCAD | 8–12 |
| Linetype (`.lin`) and hatch pattern (`.pat`) files | load user files | own built-in library only; user files can't be loaded | 3–5 |
| Plot styles (`.ctb`, `.stb`), plotter configs (`.pc3`), `.pmp` | yes | plot style tables in our own JSON format ([plot-styles.md](plot-styles.md)) and kept in the drawing; binary `.ctb`/`.stb` not read (no public spec); no `.pc3`/`.pmp` | 6–10 |
| Linetype (`.lin`) and hatch pattern (`.pat`) files | load user files | user files load (#552); linetype shape (SHX) elements are skipped | 1–2 |
| Plot styles (`.ctb`, `.stb`), plotter configs (`.pc3`), `.pmp` | yes | plot style tables in our own JSON format ([plot-styles.md](plot-styles.md)) and kept in the drawing; plotter devices with papers and printable areas in our own JSON format ([plotters.md](plotters.md), #564); binary `.ctb`/`.stb`/`.pc3`/`.pmp` not read (no public spec) | 4–8 |
| Scripts (`.scr`) | SCRIPT | script text through the CLI, MCP and control channel; no SCRIPT command reading a `.scr` file | 1–2 |
| Aliases (`.pgp`), CUI(x), workspaces | yes | no | 6–10 |
| **SVG import** (Inkscape .svg/.svgz) | yes (via scripts) | partial (module compiled, 11 tests pass, dispatch works, open-dialoog filter updated) | 2–4 |
| Aliases (`.pgp`), CUI(x), workspaces | yes | user alias files and ALIASEDIT (#552); no CUI(x) or workspaces | 4–8 |
| SVG import (`.svg`, `.svgz`) | yes (via scripts) | OPEN reads shapes, paths, groups and Inkscape layers into entities (#636); no CSS classes, `use`, fills, text or images | 2–4 |
| AutoLISP (`.lsp`, `.fas`, `.vlx`), `.dll`/`.arx` plug-ins | yes | no | see [gaps.md](gaps.md) (M12) |
| Data extraction (`.csv`, `.xls`) and data links | yes | no | 6–10 |
| Data extraction (`.csv`, `.xls`) and data links | yes | DATAEXTRACTION/EATTEXT to CSV or a table (#433); table data links read CSV (#534); no `.xls`, no `.dxe` templates | 3–5 |
| eTransmit (`.zip` packages) | yes | no | 4–6 |
## Tests
@ -131,6 +134,7 @@ our output in AutoCAD black-box.
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | Rows refreshed for merged work: code pages and `\M+` (#505), MULTILEADER (#459), IMAGE, MLINE/HELIX/REGION/TOLERANCE, VPORT/VIEW/UCS tables, modelled and raw objects, foreign data (#528), DWT templates and user `.lin`/`.pat`/`.pgp` files (#552), PDF output (#567, #571), plotter devices (#564), data extraction (#433, #534); weighted percentages not re-measured |
| 2026-10-11 | minor | DXF (ASCII and binary) and DWG saved at 2000–2018, 2018 by default (#421) |
| 2026-10-10 | minor | WIPEOUT and gradients written since #147/#162; other save losses remain (#201, #204, #208, #209, #213, #223) |
| 2026-10-10 | major | First file-format parity doc: DWG and DXF version by version, per-object read/write, other formats |

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# Where CADCraft falls short of AutoCAD
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (German catalog landed, L2 narrowed; SPLINE, MTEXT and MLEADER prompt options landed, #408: top-10 row 5, F1 and F10 narrowed) · **Target:** Autodesk AutoCAD 2027
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (refreshed for landed features: code pages, tracking, grips, dynamic input, SPLINEDIT, MULTILEADER, arrays, annotative scaling, plotting and more; four top-10 rows and F18, U2, U8, U9 closed; German catalog landed, L2 narrowed) · **Target:** Autodesk AutoCAD 2027
Every known shortfall, one row each, ranked within each section by user impact. This is the work
list: agents pick from here (top of a section first), and remove or update a row in the same PR
@ -13,42 +13,37 @@ do them first.
| # | Gap | Why it ranks here | Est. | Doc |
|---|---|---|---|---|
| 1 | **[alpha blocker]** **Saving DWG drops what we don't model** (DXF now writes back unknown entities and objects, foreign xdata, extension dictionaries, reactors, layer states and colour books, #528; through DWG, acadrust drops custom-class entities and objects, xdata on table records and blocks, entity colour books and reactors; MULTILEADER is still written as LEADER+MTEXT) | Opening a colleague's DWG and saving it still deletes some content: the one thing a CAD user can't forgive | 6–10 | [file formats](file-format-parity.md) |
| 1 | **[alpha blocker]** **Saving DWG drops what we don't model** (DXF now writes back unknown entities and objects, foreign xdata, extension dictionaries, reactors, layer states and colour books, #528, and native MULTILEADERs, #459 (not yet tested through DWG); through DWG, acadrust drops custom-class entities and objects, xdata on table records and blocks, entity colour books and reactors) | Opening a colleague's DWG and saving it still deletes some content: the one thing a CAD user can't forgive | 6–10 | [file formats](file-format-parity.md) |
| 2 | **[alpha blocker]** **No real-file test corpus and no check in AutoCAD** | All 36 file tests are synthetic; nobody has verified a CADCraft DWG/DXF opens cleanly in AutoCAD | 10–15 + human | [file formats](file-format-parity.md#tests) |
| 3 | **Tracking leftovers** (object snap tracking, Extension, Parallel and Apparent Intersection landed, #379): polar angles relative to the last segment, PolarSnap, temporary tracking point | Small now; ranks lower at the next review | 3–5 | [ui](ui-parity.md#tracking-polar-ortho-grid-and-snap--70) |
| 4 | **No code pages when reading pre-2007 files** (saving DWG/DXF at 2000–2018 and binary DXF landed, #421) | Pre-2007 CJK/Cyrillic files are garbled | 3–5 | [file formats](file-format-parity.md) |
| 5 | **[alpha blocker]** **Stubbed prompt options** left in PEDIT Edit vertex, SPLINEDIT and MTEXT columns | Scripts and muscle memory hit "not available yet" (the most-used commands are done) | 3–6 | [features](#features) |
| 6 | **Ellipse and spline geometry is tessellated** (intersections, offsets, closest points; polyline offset ignores bulges) | Coordinates are subtly wrong; offsets of ellipses come out as polylines | 30–50 | [geometry](geometry-parity.md) |
| 7 | **[alpha blocker]** **No xrefs, block editor, dynamic blocks or groups** | Most production drawings use them | 80–120 | [features](#features) |
| 8 | **No autosave in the web build** (the desktop app has SAVETIME autosave, Drawing Recovery, AUDIT and RECOVER since #406) | Browser users lose unsaved work when the tab or the browser goes down | 3–5 | [features](#features) |
| 9 | **Dynamic input lacks grip input; no TK; grip options ignored** (FROM, M2P/MTP, point filters, `*` and `<a` landed, #392) | Precision entry at the cursor is how AutoCAD is taught today | 12–20 | [ui](ui-parity.md) |
| 10 | **No CI runs the Rust tests on pull requests** (`cargo fmt` on main is fixed) | open PRs land without a gate; regressions go unseen | 2–3 | [stability](#stability) |
| 3 | **Ellipse and spline geometry is tessellated** (intersections, offsets, closest points; polyline offset ignores bulges) | Coordinates are subtly wrong; offsets of ellipses come out as polylines | 30–50 | [geometry](geometry-parity.md) |
| 4 | **[alpha blocker]** **No block editor or dynamic blocks; xrefs can't be edited in place or clipped** (xrefs, #525, and groups, #417, landed) | Most production drawings use them | 65–100 | [features](#features) |
| 5 | **No autosave in the web build** (the desktop app has SAVETIME autosave, Drawing Recovery, AUDIT and RECOVER since #406) | Browser users lose unsaved work when the tab or the browser goes down | 3–5 | [features](#features) |
| 6 | **No CI runs the Rust tests on pull requests** (`cargo fmt` on main is fixed) | open PRs land without a gate; regressions go unseen | 2–3 | [stability](#stability) |
## Features
| # | Gap | Evidence | User impact | Est. |
|---|---|---|---|---|
| F1 | **[alpha blocker]** Prompt options print "not available yet": PEDIT Edit vertex Break/Regen/Tangent, some SPLINEDIT options; MTEXT Dynamic/Static columns (no column model). SPLINE, MTEXT and MLEADER options done (#408): closed splines keep but ignore a fit tolerance, SPLINE Object fits the polyline's vertices (no spline frame is kept) (TRIM/EXTEND, PLINE arc mode and Length, XLINE done (#397); OFFSET, ROTATE and FILLET options done earlier) | `modify2.rs:594,783,806`, `cmd/mtext_opts.rs` | Medium: the most-used commands are done | 3–6 |
| F1 | **[alpha blocker]** Prompt options that still print "not available yet": STRETCH polygon and fence selection (crossing window only), -ATTEDIT one-at-a-time Position, Height, Angle and Style, colour books in -ATTEDIT Color, -RENAME of materials, plot styles and viewport configurations. SPLINEDIT Join, Edit vertex Add and Elevate order (#559), PEDIT Edit vertex and the other SPLINEDIT options (#558) done: Edit vertex Tangent directions last for the PEDIT session only (LWPOLYLINE stores none). MTEXT Dynamic/Static columns done (#547). SPLINE, MTEXT and MLEADER options done (#408): SPLINE Object fits the polyline's vertices (no spline frame is kept) (TRIM/EXTEND, PLINE arc mode and Length, XLINE done (#397); OFFSET, ROTATE and FILLET options done earlier) | `cmd/modify.rs`, `cmd/blocks/attedit.rs`, `cmd/props/rename.rs` | Low: the most-used commands are done | 2–4 |
| F2 | XREF editing in place and clipping: REFEDIT and XCLIP are missing. XATTACH, the External References palette, -XREF (Bind/Detach/Path/Unload/Reload/Overlay), XBIND, XOPEN, overlays, relative paths and loading at open are done (#525). Unloaded state and xref-layer overrides last only for the session | `cmd/blocks/xref.rs` | Medium: xrefs can't be edited in place or clipped | 15–25 |
| F3 | **[alpha blocker]** (block editor and REFEDIT; dynamic-block authoring is beta) No block editor (BEDIT) or dynamic blocks (parameters, actions, visibility, lookup); dynamic blocks from other files lose their behaviour | issue #185 offers help | High: standard libraries are dynamic | 50–75 |
| F4 | Autosave leftovers: no autosave in the web build (browser storage); autosave files are DXF, not DWG; no AUDITCTL `.adt` log and no separate RECOVER mode in the file readers (SAVETIME, Drawing Recovery, AUDIT and RECOVER landed with #406) | `engine/src/autosave.rs`, `engine/src/audit.rs` | Low-medium (web users) | 3–5 |
| F5 | Arrays are not associative: no ARRAYEDIT; ARRAY/ARRAYRECT/ARRAYPOLAR edit the array in an option loop, then create plain copies (ASsociative, Levels, polar ROWs and grip editing print "not available yet") | `cmd/array.rs` | Medium-high | 8–12 |
| F7 | Dimensions: no DIMSTYLE manager dialog; 43 of ~80 DIMSTYLE variables (DIMTOFL, DIMATFIT, DIMTMOVE, DIMLTYPE, DIMLWD, DIMFXL, DIMTOLJ, DIMALTU …); no smart DIM; no DIMJOGGED, DIMJOGLINE, DIMBREAK, oblique DIMEDIT, inspection; QDIM continuous only (SETVAR DIM* now become style overrides, #129) | `doc/src/tables.rs:223-266`, `annotate.rs:64,364` | High for detailers | 25–35 |
| F5 | Associative arrays (ASsociative, Levels, polar ROWs, ARRAYEDIT, ARRAYCLOSE) landed (#448); left: grip editing of arrays (count/spacing grips), ARRAYPATH is not associative, ARRAYEDIT has no item deletion (CTRL+click) and no Key point base points, levels only shift Z (no 3D view) | `cmd/array.rs`, `cmd/array/edit.rs` | Medium | 4–6 |
| F7 | Dimensions: no DIMSTYLE manager dialog; no smart DIM; DIMTFILL/DIMTFILLCLR, DIMALTTD/DIMALTTZ, DIMUPT and DIMTXTDIRECTION not modelled; jog height and break size not style settings; DIMBREAK breaks don't follow moved objects (style variables, DIMJOGGED, DIMJOGLINE, DIMBREAK, DIMEDIT, DIMINSPECT and QDIM modes done, #507) | `doc/src/tables.rs`, `cmd/annotate_dimedit.rs`, `cmd/annotate_qdim.rs` | Medium | 10–15 |
| F8 | TOLERANCE leftovers (feature control frames landed, #420: model, our own symbol drawing, DXF, command-line prompts, explode, grips): no Geometric Tolerance dialog, no LEADER/QLEADER tolerance annotation, no in-place editing of a frame's contents | `cmd/tolerance.rs` | Low-medium (mechanical) | 2–4 |
| F9 | MTEXT editor is a dialog box, not in place; no columns, bullets, numbering, tabs, indents; no fields (FIELD, UPDATEFIELD); no spell check (SPELL) | `ui-egui/dialogs.rs:188-240` | Medium-high | 30–45 |
| F9 | MTEXT is edited in a dialog box, not in place (no ruler for indents and tabs, no formatting toolbar on the canvas); no fields (FIELD, UPDATEFIELD) and no spell check (SPELL): open PR #551. Paragraph indents, tabs, bullets, numbering and columns landed (#547) | `ui-egui/dialogs.rs` | Medium | 15–25 |
| F10 | MLEADER: no MLEADEREDIT/ALIGN/COLLECT; MLEADERSTYLE has 5 fields (block content and spline/no-leader types are per command, not in the style; block content has no attributes) | `annotate.rs`, `cmd/mleader_content.rs`, `tables.rs:417` | Medium | 8–12 |
| F11 | Tables (cell styles, formulas, TABLEDIT, TABLEEXPORT, table breaking and CSV data links landed, #534): formulas aren't read from or written as AutoCAD FIELD objects (other programs see values); number formats apply to formula results only; cell text doesn't wrap; custom cell styles, breaks and data links travel as CADCraft xdata (not through DWG); data links read CSV only (no Excel ranges, no write-back, not on the web); no cell-style tab in the Table Style dialog | `cmd/table/*`, `io/dxf_table.rs` | Low-medium | 6–10 |
| F12 | Annotative scaling: the flag is stored, nothing scales; no scale list, no "Annotative Object Scale" commands | 4 uncovered menu items | Medium-high in layouts | 10–15 |
| F12 | Annotative scaling done (#468): scale list (SCALELISTEDIT), CANNOSCALE, OBJECTSCALE, ANNOALLVISIBLE/ANNOAUTOSCALE, viewport scale, DXF, status bar list. Left: per-scale positions (ANNORESET is a no-op), a viewport annotation scale apart from its viewport scale, annotative objects inside blocks and old LEADERs, AutoCAD files' per-object scale contexts (read as not annotative) | `cmd/annoscale.rs`, `doc/src/anno.rs` | Low-medium | 4–8 |
| F13 | Hatch: 23 patterns (AutoCAD ~85; ours must stay original); no hatch dialog (HATCH and HATCHEDIT options work at the command line and in JSON), no MPolygon; HATCHEDIT can't add or remove boundaries; a hatch copied with its boundary isn't linked to the copy; HPGAPTOL closes gaps between curve ends only | `doc/src/library.rs`, `cmd/hatch.rs`, `cmd/hatch/edit.rs` | Medium | 8–12 |
| F14 | **[alpha blocker]** No plot preview, plotter devices, PUBLISH/batch plot; Print opens no plot dialog (#160, PR #200). Plot styles (CTB and STB, [plot-styles.md](plot-styles.md)) apply since #410; their end/join/fill styles aren't applied and binary `.ctb`/`.stb` files can't be read | `palettes.rs:666` | High for sheet output | 15–25 |
| F15 | Viewports: no polygonal, object or clipped viewports; no viewport scale control in the UI | menu items uncovered | Medium | 6–10 |
| F14 | **[alpha blocker]** Plotting leftovers: binary `.ctb`/`.stb`/`.pc3` files can't be read; model-space PDF plots keep the default margins (a device paper's margins apply to layouts and PNG plots); no system printers (H3). The Plot dialog (#160), Plot Preview and PUBLISH (#186), plot styles (CTB and STB, [plot-styles.md](plot-styles.md), #410) with their end, join and fill styles, and plotter devices with paper sizes and printable areas ([plotters.md](plotters.md), #564) landed | `io/src/plotter.rs`, `cmd/plotters.rs` | Medium | 4–8 |
| F15 | Viewports: MVIEW Restore prints "not available yet" (named viewport configurations into a layout, see U11); a clipped viewport and its clip boundary move and scale separately. Polygonal, object and clipped viewports, VPCLIP, MVIEW ON/OFF/Lock/2/3/4 and the status-bar scale list landed (#453) | `cmd/layout/viewports.rs` | Low | 2–4 |
| F16 | Groups: no group bounding box or single grip when a group is selected (GROUPDISPLAYMODE), copying a whole group does not make a new group, no Object Grouping dialog (GROUP, GROUPEDIT, UNGROUP, -GROUP, PICKSTYLE group selection and the DXF/DWG round trip landed, #417); PICKSTYLE's associative-hatch bit is stored but unused | `cmd/groups.rs` | Low | 2–4 |
| F17 | Attributes: BATTMAN lists only; no ATTSYNC, EATTEXT, global ATTEDIT | `blocks.rs:300` | Medium | 6–10 |
| F18 | Layer bugs: edits change geometry on locked layers (#87, PR #196); delete/purge removes layers used by blocks (#72, PR #189); rename misses paper space and blocks (#75, PR #191); linetype rename breaks assignments (#74, PR #195); rejected freeze changes colour (#71, PR #188) | issues | High (correctness) | 3–5 (PRs open) |
| F17 | Attributes (ATTSYNC, global -ATTEDIT, BATTMAN editing and DATAEXTRACTION/EATTEXT landed, #433): no verify, preset, lock-position or multiple-lines modes, so BATTMAN can't set them; data extraction covers block references and attribute values (CSV or a table) only — no wizard, nested blocks, other objects' properties, `.dxe` templates or spreadsheet output | `cmd/blocks/battman.rs`, `cmd/blocks/extract.rs` | Low | 4–6 |
| F19 | MATCHPROP Settings is a keyword prompt (no dialog) and has no material, shadow or centre-object settings; TEXTTOFRONT and HATCHTOBACK act on the current space only; OVERKILL doesn't compare polyline segments with other objects (picker and Settings, DRAWORDER Above/Under, TEXTTOFRONT, HATCHTOBACK, OVERKILL tolerance/ignore/overlap/end-to-end options landed, #439) | `props/matchprop.rs`, `draworder.rs`, `overkill.rs` | Low | 2–4 |
| F20 | OPTIONS/Preferences dialog missing (#23) (UNITS has a dialog since #38) | — | Medium | 6–10 |
| F20 | OPTIONS dialog done (#23): Display, Open and Save, Drafting, Selection, User Preferences and Profiles tabs, and the user profile (object snap modes, drafting toggles, Dynamic Input, PICKBOX, APERTURE, GRIPSIZE, CURSORSIZE, PICKFIRST, PICKADD, QPMODE, model and paper background, snap marker size, system cursor) survives restarts. Left: right-click customization, the autosave interval and default save version on Open and Save (the features themselves landed, #406, #421), AutoSnap magnet and tooltip toggles, colours of the other drawing-area elements, named profiles with import and export | `ui-egui/src/options/` | Low | 2–4 |
| F21 | MLINE, REGION and HELIX are objects since #510, with gaps: MLEDIT has no Merged Tee and tees trim square; UNION/SUBTRACT/INTERSECT only combine regions whose boundaries don't meet; regions are saved as closed polylines (no ACIS data); PURGE skips multiline styles | `draw2/mline.rs`, `inquiry/regions.rs`, `dxf_region.rs` | Low | 6–10 |
| F22 | Inquiry: MASSPROP approximate; COUNT counts model-space inserts only; no QuickCalc palette (CAL is an evaluator); no DWG Compare | `utility.rs:203,310-352`, `inquiry.rs:305` | Low-medium | 15–25 |
| F22 | Inquiry leftovers (COUNT across spaces and nested blocks, the QuickCalc palette and COMPARE landed, #563; MASSPROP on regions, #510): COMPARE compares the tab shown, not every layout at once, and has no COMPAREEXPORT report; QuickCalc keeps its history and variables for the session only | `file/compare.rs`, `palettes/quickcalc.rs` | Low | 3–5 |
| F23 | No Sheet Set Manager, eTransmit, Share, Traces, Markup Import, Activity Insights | menu items uncovered | Low-medium (team workflows) | 40–70 |
| F24 | No 3D: UCS, 3D views, orbit, solids, surfaces, meshes, sections, visual styles, materials, lights, rendering (150 menu items) | [parity-checklist](parity-checklist.md) | Medium (3D users) | 300–450 |
@ -58,17 +53,14 @@ Detail and evidence: [ui-parity.md](ui-parity.md).
| # | Gap | User impact | Est. |
|---|---|---|---|
| U2 | Dynamic input: grip dimensional input, lock icons, DYNPROMPT options menu (pointer boxes with Tab and relative entry landed in #60) | Medium | 3–5 |
| U4 | Tab snap cycling offers the closest snap of each mode, not every candidate. Typed snap overrides (`END`, `MID` … `NON`), the Shift/Ctrl+right-click snap menu and Tab cycling landed (#393), the menu's Temporary track point in #441 | Low | 1 |
| U5 | Hot-grip options (Base point, Copy, Undo, Reference) are shown but ignored; multiple hot grips; multifunctional grip menus (Add/Remove Vertex, Convert to Arc) | Medium-high | 6–10 |
| U5 | Grip menus open on right-click only (no hover menu, no Ctrl to cycle the options); no multifunctional grips on dimensions, MLEADER, hatches or text; Add Vertex on an arc segment straightens it. Hot-grip options (Base point, Copy, Undo, Reference, eXit), multiple hot grips and the polyline/line/arc grip menus landed (#425) | Low-medium | 2–4 |
| U6 | Selection: lasso; selection cycling (a list of overlapping objects, SELECTIONCYCLING); the CLass keyword; isolation saved with the drawing (OBJECTISOLATIONMODE 1) and the status-bar isolate button. Press-drag windows (#63), the W, C, F, WP and CP keywords (#226), BOX, AUto, SIngle, Multiple, Group, Add, Remove and Undo, SELECTSIMILAR, and ISOLATEOBJECTS/HIDEOBJECTS/UNISOLATEOBJECTS (#428) landed | Medium | 3–5 |
| U7 | Right-click context menus (canvas, selection, command, command line, palettes, tabs) | Medium-high | 6–10 |
| U8 | Snaps missing on some objects: MID on circles/ellipses/splines; NOD on dimension points; INS on ATTDEF/MLEADER; TAN on ellipses/splines; GCEN on splines | Medium | 4–6 |
| U9 | Isometric snap/grid and ISODRAFT (dead toggle). Polar additional angles, angles relative to the last segment and PolarSnap landed (#441) | Medium | 2–4 |
| U10 | UNDO Mark/Back/BEgin/End/Auto; SETVAR coverage (~60 of ~1,000 variables) | Medium | 6–10 |
| U7 | Right-click menus: no in-place layout tab rename or Move or Copy dialog, no Select All Layouts, no Paste to command line; palette menus are on the Layers rows and the Properties background only. The command menu (held right-click: Enter, Cancel, Recent Input, options, Snap Overrides, Pan/Zoom), the selection menu with object edits, command line, drawing tab, layout tab and palette menus landed (#512) | Low | 1–2 |
| U10 | SETVAR covers about 150 of ~1,000 variables (UNDO options, MREDO and UNDOCTL, and header variables such as CIRCLERAD, OFFSETDIST, POLYSIDES, HPNAME and the dimension variables in SETVAR ? landed, #461); typing a variable name as a command doesn't run SETVAR | Low-medium | 3–5 |
| U11 | MVIEW Restore (a saved viewport configuration into a layout); VIEW Orthographic, UCS and background settings; view twist is kept but not shown (Zoom Realtime and Dynamic, ZOOMFACTOR, named views (VIEW) and tiled model viewports with saved configurations (VPORTS) landed in #463) | Low | 1–2 |
| U12 | Workspaces, navigation bar, CUI customisation, alias editor, ViewCube drag (#7) | Low-medium | 15–25 |
| U13 | Window controls misaligned on macOS (#161); `.dxf` from Finder fails to open (#158) | Medium | 2–4 |
| U13 | `.dxf` from Finder fails to open on macOS (#158) (window controls fixed, #161) | Medium | 1–2 |
## File formats
@ -77,15 +69,15 @@ Detail: [file-format-parity.md](file-format-parity.md).
| # | Gap | User impact | Est. |
|---|---|---|---|
| FF1 | **[alpha blocker]** Round-trip what we don't model. DXF done (#528): unknown entities and objects (with their CLASS records), foreign xdata (hyperlinks included), extension dictionaries, persistent reactors, DICTIONARYVAR and XRECORDs, layer states, colour book colours, references remapped on save; IMAGE, VIEW/UCS, groups, block descriptions, true colours, transparency (#201, #204, #208, #209, #213, #223); WIPEOUT and gradients (#147, #162). Left: through DWG, acadrust drops custom-class entities and objects, xdata on table records and blocks, entity colour book names and reactors; UCS elevation; MTEXT background colours; unknown entities follow only layer edits, and renamed layers and blocks lose their foreign data | High | 6–10 |
| FF2 | **[alpha blocker]** Native MULTILEADER objects (read and write) | High | 6–10 |
| FF2 | Multileader leftovers (native MULTILEADER read/write landed, #459): several landings per multileader (extra leader roots are folded into the lines), per-object overrides (leader colour and linetype, arrowhead symbol, text frame), annotative scale contexts; check the text placement of our MULTILEADER output in AutoCAD | Medium | 3–5 |
| FF3 | Save-version leftovers (DXF/DWG 2000–2018, binary DXF, SAVEAS `version`/`binary` and the default save version landed, #421): no R14 DWG or R12 DXF output; the Save dialog can't pick the version per file (the file picker doesn't report the chosen type; File > Default Save Format sets it); no command-line SAVEAS format prompt | Low | 2–4 |
| FF4 | Code pages (`$DWGCODEPAGE`, ANSI_932/936/949/950/125x) when reading pre-2007 files | Medium-high (Asia, Eastern Europe) | 3–5 |
| FF4 | Code-page leftovers (pre-2007 DXF read in their `$DWGCODEPAGE` landed, #505): Johab (ANSI_1361) and DOS 855/857/860–865/869 read as ANSI_1252; saving declares `ANSI_1252` instead of the file's code page (the text is pure ASCII, so still correct); acadrust approximates DOS code pages in pre-2007 DWG (DOS437 as 866, DOS850 as 1252) | Low | 1–2 |
| FF5 | **[alpha blocker]** Real-file corpus (`storytold/cadcraft-corpus`), open → save → reopen tests, black-box check in AutoCAD | High | 10–15 + human |
| FF6 | **[alpha blocker]** DWG throughput: a 10 MB DWG took ~2 min to fail (#57) | High for real projects | 6–10 |
| FF7 | Table record and object handles from other programs' files are renumbered on the first save (entity handles are kept; `*D` blocks no longer duplicate and once reopened, CADCraft's own files keep every handle across saves, #495) | Low | 4–6 |
| FF8 | SHX fonts (shape and big fonts) not read | Medium-high (text metrics differ) | 8–12 |
| FF9 | `.pc3` plotter configuration files; linetype shape (SHX) elements are skipped (templates and `.dwt`, user `.lin`/`.pat` and `.pgp` alias files landed, #552; `.ctb`/`.stb`, #410) | Low-medium | 5–10 |
| FF10 | PDF: text as real fonts, layers (OCG), multi-sheet; PDF import and underlays; raster image attach | Medium | 30–50 |
| FF10 | PDF import and underlays (PDFATTACH); raster image attach (IMAGEATTACH). PDF export has real text in embedded TrueType subsets, PDF layers, several sheets per file and hyperlinks (#567, #571) | Medium | 20–35 |
| FF11 | DWF/DWFx, DGN, WMF, EPS, ACIS/STL and other exchange formats | Low-medium | 50–100 |
| FF12 | DWG in the web build | Medium | 6–10 |
| FF13 | R12 binary DXF, pre-R13 DWG | Low | 10–20 |
@ -120,8 +112,8 @@ Detail: [localization-parity.md](localization-parity.md).
|---|---|---|---|
| S1 | No CI runs `cargo xtask ci` on pull requests (only packaging lint and release builds) | `.github/workflows/` | 2–3 |
| S2 | ~~`cargo fmt --check` fails on main~~ fixed on main (8fceaaf) | — | 0 |
| S3 | 47 open PRs, many community bug fixes awaiting review | `gh pr list` | 10–20 |
| S4 | Open correctness issues: extents union far-apart geometry (#166), lines not visible mid-command (#44, PR #56), browser save/plot deliver nothing (#133, #134), closing a tab switches drawings (#76, PR #192) | issues | 6–10 |
| S3 | 40 open PRs, many community bug fixes awaiting review | `gh pr list` | 10–20 |
| S4 | Open correctness issues: extents union far-apart geometry (#166), lines not visible mid-command (#44), browser plot shows raw PDF bytes (#134) (closing a tab and browser saves fixed, #76, #133) | issues | 4–6 |
| S5 | No smoke test of every command through the UI (PR #42 proposes one) | — | 6–10 |
| S6 | No property-based or fuzz tests for geometry; hostile-input tests cover parsing only | [geometry-parity](geometry-parity.md#tests) | 4–6 |
@ -129,7 +121,7 @@ Detail: [localization-parity.md](localization-parity.md).
| # | Gap | Est. |
|---|---|---|
| P1 | Web build: File > Open does nothing (#55, PR #199), saves don't download (#133, PR #193), plot shows raw PDF bytes (#134), no DWG | 6–10 |
| P1 | Web build: plot shows raw PDF bytes (#134), no DWG (File > Open and save downloads fixed, #55, #133) | 3–5 |
| P2 | Windows and Linux get little runtime testing; Linux Mint mouse delay (#25); Windows magnifier (#39) | 6–10 |
| P3 | macOS file associations: opening `.dxf` from Finder fails (#158) | 1–2 |
@ -155,6 +147,7 @@ Detail: [localization-parity.md](localization-parity.md).
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | Refreshed for merged features: code pages (#505), tracking leftovers (#441), dynamic input/grip input (#519, #425) and SPLINEDIT Join/Add/Elevate (#559) closed their top-10 rows (top 10 now has 6 rows until the next review re-ranks); MULTILEADER (#459) and xrefs (#525) narrowed rows 1 and 4; F1 narrowed to the remaining stubs (#558, #559, #547); F5, F7, F9, F12, F14, F15, F17, F20, F22, U5, U7, U10, FF2, FF4, FF10 narrowed; F18, U2, U8, U9 removed (done); U13, S3, S4, P1 updated for merged fixes |
| 2026-10-11 | minor | German interface catalog landed: L1 row count 936 → 989, L2 narrowed (de done; 40–60 → 35–55 h) |
| 2026-10-11 | minor | SPLINE Knots/Tangency/toLerance/Object, MTEXT Height/Justify/Line spacing/Rotation/Style/Width/Columns, MLEADER spline and no-leader types and block content landed (#408): top-10 row 5, F1 and F10 narrowed |
| 2026-10-11 | minor | Object snap tracking, Extension, Parallel and true Apparent Intersection landed (#379): top-10 row 3 and U1 narrowed to the leftovers |

5
docs/geometry-parity.md
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@ -1,6 +1,6 @@
# Geometry parity
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (FILLET, EXTEND, JOIN and LENGTHEN on elliptical arcs and splines; FILLET/CHAMFER with polyline segments; a closed spline trims to one piece, #466) · **Target:** Autodesk AutoCAD 2027
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (constraint solver: DOF report, G2 Smooth, ellipse/spline/block geometry, CONSTRAINTINFER, #546) · **Target:** Autodesk AutoCAD 2027
CAD users trust numbers: a trimmed endpoint, an offset, an intersection or an area is either right
to the last displayed digit or the tool is unusable for production drawings. This document
@ -140,7 +140,7 @@ exist for parsing, not for numerics.
origin and at 1e6–1e7 coordinates. 8–12 h.
4. Exact areas and MASSPROP for bulge polylines, regions (2D) and hatch loops. 6–10 h.
5. Hatch gap tolerance and curved boundaries. 8–12 h.
6. Solver: DOF reporting, G2 Smooth, ellipse/spline geometry, constraint inference. 20–30 h.
6. ~~Solver: DOF reporting, G2 Smooth, ellipse/spline geometry, constraint inference.~~ Done (#546).
7. Spline fit options (end tangents, knot parameterisation, fit tolerance, periodic). 6–10 h.
Total ≈ 90–140 h; items 1–6 parallelise across two or three agents.
@ -153,3 +153,4 @@ Total ≈ 90–140 h; items 1–6 parallelise across two or three agents.
| 2026-10-11 | minor | EXTEND, JOIN and LENGTHEN on elliptical arcs and splines; closed splines trim to one piece; trim/extend section 45% → 55% (#466) |
| 2026-10-11 | minor | FILLET with elliptical arcs and splines; trim/extend section 55% → 65% (#466) |
| 2026-10-11 | minor | FILLET/CHAMFER with polyline segments (same polyline, end segment with a line); section 65% → 70% (#466) |
| 2026-10-11 | minor | Constraint solver (#546): DOF report, G2 Smooth, ellipse/spline/block geometry, CONSTRAINTINFER |

9
docs/roadmap.md
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@ -1,6 +1,6 @@
# CADCraft roadmap detail
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-10 · **Change:** minor (merged main: fmt fixed, Ukrainian catalog in M13; alpha gate added earlier today) · **Target:** Autodesk AutoCAD 2027
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (alpha-gate evidence refreshed: xrefs, plot dialog, preview, PUBLISH, plotter devices, DXF round trip) · **Target:** Autodesk AutoCAD 2027
Forward-looking plan: milestones with status, the current focus, and what comes next with
estimates. The summary is [ROADMAP.md](../ROADMAP.md); the work items behind every line are in
@ -34,9 +34,9 @@ the alpha checklist. Main platform: macOS.
|---|---|---|---|
| Draw and modify precisely with object snaps and tracking | **partial, blocking** | Running snaps, polar, ortho and coordinate entry work; object snap tracking, extension and parallel snaps are toggles with no behaviour; no FROM/M2P/TK or typed snap overrides; TRIM/EXTEND standard mode, OFFSET Erase/Layer/Multiple, ROTATE Reference print "not available yet"; ellipse/spline intersections approximate ([ui-parity.md](ui-parity.md), [gaps.md](gaps.md) U1, U3, U4, F1) | 35–50 |
| Dimension and annotate | partial, not blocking | All core DIM types, associativity, DIMSTYLE variables (43 of ~80), TEXT/MTEXT, MLEADER, tables work; no DIMSTYLE dialog, MTEXT editor not in place, MLEADER thin (F7, F9, F10). A drafter can dimension a sheet end to end | 0 for the gate (beta work) |
| Use blocks (insert library blocks, edit them, attributes, xrefs) | **partial, blocking** | Static BLOCK/INSERT/attributes work; no block editor (BEDIT) or REFEDIT, so a block can't be edited in place; no xrefs; dynamic blocks from other drawings lose their behaviour (F2, F3) | 35–55 |
| Layers, layouts and plotting a sheet | **partial, blocking** | Layers, layouts, viewports, page setups, PDF output and plot styles (CTB/STB, #410) work; no plot preview or plot dialog (#160); printers/plotters only via PDF (F14, H3) | 15–25 |
| Save DWG that AutoCAD opens without loss, and reopen others' DWGs | **no** | Saving drops every entity and object we don't model (Unknown, IMAGE, WIPEOUT, gradients, groups, views, foreign xdata); MULTILEADER becomes LEADER+MTEXT; never checked in AutoCAD; no real-file tests; a 10 MB DWG failed after ~2 min (#57) (FF1–FF6) | 40–60 + owner (real-file corpus, AutoCAD check) |
| Use blocks (insert library blocks, edit them, attributes, xrefs) | **partial, blocking** | Static BLOCK/INSERT/attributes, ATTSYNC, BATTMAN editing and xrefs (#525) work; no block editor (BEDIT) or REFEDIT, so a block can't be edited in place; no XCLIP; dynamic blocks from other drawings lose their behaviour (F2, F3) | 35–55 |
| Layers, layouts and plotting a sheet | **partial, blocking** | Layers, layouts, viewports, page setups, PDF output, plot styles (CTB/STB, #410), the Plot dialog (#160), Plot Preview and PUBLISH (#186) and plotter devices (#564) work; printers only via PDF/PNG/SVG files (F14, H3) | 15–25 |
| Save DWG that AutoCAD opens without loss, and reopen others' DWGs | **no** | DXF keeps what we don't model (#528) and writes native MULTILEADERs (#459, not yet tested through DWG); through DWG, acadrust drops custom-class entities and objects and some foreign data; never checked in AutoCAD; no real-file tests; a 10 MB DWG failed after ~2 min (#57) (FF1–FF6) | 40–60 + owner (real-file corpus, AutoCAD check) |
| **To alpha** | | | **≈ 125–190** |
Ready for real work is ≈ 38%, also under the ~40% alpha bar; closing the gate rows lifts it past
@ -103,6 +103,7 @@ AutoLISP surface, AI features with openly licensed local models, and every remai
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | Alpha-gate evidence refreshed for merged work (#459, #525, #528, #160, #186, #564); statuses and hours unchanged |
| 2026-10-10 | minor | Merged main: fmt fixed, Ukrainian catalog noted in M13, ready for real work 38% |
| 2026-10-10 | minor | Alpha gate added (5 core workflows, 4 failing); stage pre-alpha |
| 2026-10-10 | major | Created from the old ROADMAP's milestone table and current focus; milestones re-scored by depth; beta checklist added |

23
docs/target-app-parity.md
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@ -1,6 +1,6 @@
# Target-app parity: CADCraft vs AutoCAD 2027
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-10 · **Change:** minor (merged main: dynamic input pointer boxes, Ukrainian catalog, DXF fixes; numbers updated) · **Target:** Autodesk AutoCAD 2027
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (feature-area evidence refreshed for merged work; numbers not re-measured) · **Target:** Autodesk AutoCAD 2027
The authoritative assessment of how close CADCraft is to AutoCAD, and how much Opus 5.5 work
remains. [ROADMAP.md](../ROADMAP.md) summarises it, [gaps.md](gaps.md) lists every shortfall,
@ -146,18 +146,18 @@ presence: an option that prints "not available yet" doesn't count.
| Area | Weight | Parity | Remaining (Opus 5.5 h) | Evidence and main gaps | Doc |
|---|---:|---:|---|---|---|
| Draw (2D) | 13% | 60% | 15–25 | ARC 11/11 methods, CIRCLE 6/6, RECTANG all options, REVCLOUD, WIPEOUT, XLINE; PLINE Angle/CEnter/Direction/Radius missing; SPLINE options ignored; MLINE and REGION are polylines; HELIX approximate | [gaps](gaps.md#features) |
| Modify | 15% | 50% | 40–60 | TRIM/EXTEND standard mode, Fence, Crossing, Project, eRase stubs; OFFSET Erase/Layer/Multiple stubs; ROTATE Reference stub; arrays non-associative (no ARRAYEDIT, interactive rectangular array fixed 3×4); MATCHPROP JSON only | [gaps](gaps.md#features) |
| Draw (2D) | 13% | 60% | 15–25 | ARC 11/11 methods, CIRCLE 6/6, RECTANG all options, REVCLOUD, WIPEOUT, XLINE; PLINE arc options and SPLINE options done (#397, #408); MLINE, REGION and HELIX are objects (#510); isometric drafting (#556) | [gaps](gaps.md#features) |
| Modify | 15% | 50% | 40–60 | TRIM/EXTEND, OFFSET, ROTATE, PEDIT and SPLINEDIT options done (#397, #558, #559); associative arrays with ARRAYEDIT (#448), no array grips; MATCHPROP picker and Settings (#439) | [gaps](gaps.md#features) |
| Geometry precision | 10% | 40% | 70–110 | exact for lines/arcs/circles; ellipse and spline intersections, offsets, closest points tessellated; absolute tolerances; polyline offset doesn't recompute bulges | [geometry-parity](geometry-parity.md) |
| Layers and properties | 7% | 70% | 10–15 | Layer Properties Manager with filters, states, VP overrides; QSELECT; Quick Properties; transparency; linetype manager thin; 19 linetypes of ~45 | [gaps](gaps.md#features) |
| Dimensions | 9% | 45% | 25–35 | all core DIM types and associativity; 43 of ~80 DIMSTYLE variables; no DIMSTYLE manager dialog, smart DIM, DIMJOGGED, DIMBREAK, DIMJOGLINE, oblique, TOLERANCE/GD&T, inspection; alt units thin | [gaps](gaps.md#features) |
| Text and MTEXT | 6% | 35% | 30–45 | TrueType, formatting codes, stacking; editor is a dialog, not in-place; most MTEXT prompt options ignored; no columns, bullets, tabs, fields, spell check, SHX, annotative behaviour | [gaps](gaps.md#features) |
| Leaders, tables, fields | 4% | 25% | 25–35 | basic MLEADER and TABLE; leader options ignored, no MLEADEREDIT/ALIGN/COLLECT, no block content; no formulas, data links, FIELD | [gaps](gaps.md#features) |
| Hatch and gradients | 5% | 35% | 15–25 | pick points with islands; 23 patterns of ~85; gradients render flat; associativity flag not acted on; no origin, gap tolerance, separate hatches, hatch dialog | [gaps](gaps.md#features) |
| Blocks, attributes, xrefs, groups | 9% | 25% | 80–120 | static blocks and attributes; no BEDIT, dynamic blocks, xrefs, REFEDIT, XCLIP, GROUP, ATTSYNC, EATTEXT, DesignCenter | [gaps](gaps.md#features) |
| Layouts, viewports, plotting | 9% | 35% | 35–50 | layouts, rectangular viewports, per-VP layers, page setups, PDF, plot styles (CTB/STB); no plot preview, devices, PUBLISH, polygonal/object viewports, annotative scales | [gaps](gaps.md#features) |
| Inquiry and utilities | 4% | 30% | 30–45 | DIST, AREA, ID, LIST, MEASUREGEOM, CAL, FIND, COUNT; no autosave/recovery, AUDIT, RECOVER, OPTIONS, SPELL, QuickCalc, DWG Compare, ETRANSMIT | [gaps](gaps.md#features) |
| Parametric constraints | 2% | 50% | 20–30 | all 12 geometric and the dimensional constraints, own solver; no DOF report, no G2 Smooth, no ellipse/spline geometry, no inference | [geometry-parity](geometry-parity.md#constraint-solver--50) |
| Dimensions | 9% | 45% | 25–35 | all core DIM types and associativity; style variables, DIMJOGGED, DIMJOGLINE, DIMBREAK, DIMEDIT, DIMINSPECT, QDIM modes (#507) and TOLERANCE (#420); no DIMSTYLE manager dialog or smart DIM | [gaps](gaps.md#features) |
| Text and MTEXT | 6% | 35% | 30–45 | TrueType, formatting codes, stacking; MTEXT prompt options (#408), indents, tabs, bullets, numbering and columns (#547), annotative scaling (#468); editor is a dialog, not in place; no fields or SPELL (open PR #551), no SHX | [gaps](gaps.md#features) |
| Leaders, tables, fields | 4% | 25% | 25–35 | MLEADER options and block content (#408), native MULTILEADER in DXF (#459); tables with cell styles, formulas, breaking and CSV data links (#534); no MLEADEREDIT/ALIGN/COLLECT, no FIELD | [gaps](gaps.md#features) |
| Hatch and gradients | 5% | 35% | 15–25 | pick points with islands; 23 patterns of ~85; gradients render flat; origin, gap tolerance, separate hatches, island styles and HATCHEDIT options (#451); no hatch dialog | [gaps](gaps.md#features) |
| Blocks, attributes, xrefs, groups | 9% | 25% | 80–120 | static blocks and attributes; ATTSYNC, BATTMAN editing, DATAEXTRACTION/EATTEXT (#433); xrefs (#525); groups (#417); no BEDIT, dynamic blocks, REFEDIT, XCLIP, DesignCenter | [gaps](gaps.md#features) |
| Layouts, viewports, plotting | 9% | 35% | 35–50 | layouts, per-VP layers, page setups, plot styles (CTB/STB), Plot dialog (#160), Plot Preview and PUBLISH (#186), plotter devices (#564), PDF with text, layers and sheets (#567, #571), polygonal/object/clipped viewports (#453), annotative scales (#468); no MVIEW Restore, no system printers | [gaps](gaps.md#features) |
| Inquiry and utilities | 4% | 30% | 30–45 | DIST, AREA, ID, LIST, MEASUREGEOM, CAL, FIND, COUNT across layouts, QuickCalc, COMPARE (#563), MASSPROP on regions (#510), autosave/recovery, AUDIT, RECOVER (#406), OPTIONS (#23); no SPELL (open PR #551), ETRANSMIT | [gaps](gaps.md#features) |
| Parametric constraints | 2% | 50% | 20–30 | all 12 geometric and the dimensional constraints, own solver; DOF report, G2 Smooth, ellipse/spline/block geometry and CONSTRAINTINFER landed (#546) | [geometry-parity](geometry-parity.md#constraint-solver--50) |
| 3D modelling, visualisation, rendering | 5% | 2% | 300–450 | no UCS, 3D views, orbit, solids, surfaces, meshes, sections, visual styles, materials, lights or rendering; 150 of the 491 menu items | [gaps](gaps.md#features) |
| Collaboration and cloud (Sheet Set Manager, Share, Traces, Markup Import, Activity Insights, DWG Compare) | 2% | 5% | 40–70 | none of these exist | [gaps](gaps.md#features) |
| **Features dimension** | 100% | **≈ 41%** | **735–1,115** | | |
@ -223,6 +223,7 @@ DWG/DXF corpus (files from people who own them); black-box checks in AutoCAD of
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | Evidence text of the feature-area rows refreshed for merged work (#397, #406, #408, #417, #420, #433, #448, #451, #453, #459, #468, #507, #510, #525, #534, #546, #547, #558, #563, #564, #567, #571); parity percentages and hours not re-measured |
| 2026-10-10 | minor | Merged main: dynamic input pointer boxes (#60) lift UI/UX to 43%, Ukrainian catalog (#36) lifts localization to 5%; ready 37% → 38%, mainstream 27% → 28%, essentials 45% → 46% |
| 2026-10-10 | minor | Readiness-by-audience table: hours to ~95% for full (1,150–1,850 h), mainstream (570–880 h) and essentials (140–225 h); full number confirmed as an additive weighted sum, unchanged |
| 2026-10-10 | minor | Mainstream-practitioner (≈ 27%) and essentials-user (≈ 45%) numbers with written weights, discounts and user evidence |