3 people 78c1653f50 loops: implied closed loops from loose LINE and ARC chains (#1906) ...

* loops: implied closed loops from loose LINE and ARC chains

LOOPS is a read-only inquiry command that chains LINE and ARC endpoints
meeting within a tolerance. Closed loops report their member handles,
perimeter, area and winding (exact with arcs, like SHAPES); open chains
report the endpoint gap, where it is and their length; branch junctions
(three or more ends at one point) are reported but excluded from the
chains rather than resolved.

The tolerance defaults to 1e-9 x the extents diagonal and is an option.
The quadratic endpoint pairing is capped (maxPairs, 1,000,000 by default)
and reports capped/pairTestsNeeded instead of guessing from a partial
pairing. Degenerate lines and arcs are counted under skipped; full-circle
arcs close on their own. The command is read-only.

Fixes #1437

* loops: cap maxPairs at 100,000,000 so a caller can't ask for unbounded work

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-24 01:51:11 -04:00

..

brand

M0: CADCraft skeleton and vertical slice

2026-10-05 23:22:25 -04:00

images

README screenshots, alpha/parity assessment in ROADMAP, MLEADER written to DXF as LEADER + MTEXT

2026-10-06 02:12:34 -04:00

architecture.md

Add German (de) interface language (#573)

2026-10-11 14:36:40 -04:00

autolisp.md

AutoLISP: entmake defines blocks with BLOCK … ENDBLK (fixes #1662) (#1765)

2026-10-24 01:49:54 -04:00

contributors.md

About: contributor and model credits compiled in (grab bag + table, self-submitted names) (#3)

2026-10-07 21:16:30 -04:00

control-protocol.md

security: authenticate the local control server with a per-session token (CWE-306) (#1844)

2026-10-22 17:35:18 -04:00

customization.md

CLI: a --cmd can act on a handle an earlier --cmd returned ({last}) (#1871)

2026-10-24 01:50:40 -04:00

file-format-parity.md

DXF/DWG: keep a file's own arrowhead blocks with standard names (_Dot, _DotSmall) (#1694)

2026-10-24 01:48:46 -04:00

gaps.md

ALIASEDIT opens the Command Aliases dialog (#1381) (#1391)

2026-10-19 02:56:52 -04:00

geometry-parity.md

JOIN with a single arc or elliptical arc offers cLose: the arc becomes its circle, the elliptical arc its full ellipse (fixes #1175) (#1197)

2026-10-19 02:54:39 -04:00

hardware-parity.md

Zoom and pan regenerate in the background instead of freezing the window (#903)

2026-10-13 06:58:16 -04:00

localization-parity.md

i18n(pt-BR): native-speaker terminology review (#1665)

2026-10-24 01:48:25 -04:00

localization.md

i18n(pt-BR): native-speaker terminology review (#1665)

2026-10-24 01:48:25 -04:00

mcp.md

loops: implied closed loops from loose LINE and ARC chains (#1906)

2026-10-24 01:51:11 -04:00

parity-checklist.md

MOCORO: move, copy, rotate and scale a selection from one base point until eXit (#1388)

2026-10-19 02:56:40 -04:00

plot-styles.md

Plot styles: apply line end, join and fill styles (part of #564) (#566)

2026-10-11 13:13:32 -04:00

plotters.md

Draw object transparency on screen, in exports and in plots (#764)

2026-10-13 06:12:48 -04:00

releasing.md

Release prep: 0.5.0 and Linux riscv64 release build (#423)

2026-10-10 19:15:06 -04:00

roadmap.md

Block Editor: BEDIT, BSAVE, BSAVEAS and BCLOSE for static blocks (#824)

2026-10-13 05:58:12 -04:00

target-app-parity.md

RECTANG: add a Center Rectangle construction mode (#1895)

2026-10-24 01:51:06 -04:00

ui-parity.md

Menu bar switches to the hovered menu once one is open (fixes #1567) (#1571)

2026-10-19 02:57:40 -04:00