Track F starts here; the three group branches are cut from this commit.
- engineering/arch/model.py: Wall, Opening, Stair and Room as frozen
dataclasses, and every refusal of spec 4 before anything is drawn, by path
(walls[2].thickness): finite positive numbers, an axis of at least two
distinct points with no zero-length segment, an arc segment refused by name
rather than approximated, an opening on an unknown wall, past its wall,
across an axis vertex or overlapping another (both ids named), an unknown
material, and a typed room area - areas are measured, never typed. The
plan travels as ACADMCP_ARCH XDATA; an opening's door/window kind and a
stair's straight/l/u kind ride beside the payload kind as opening_kind /
stair_kind, because one key cannot hold both.
- engineering/arch/layers.py: the arch set - thirteen ISO 13567-style layers
with ISO 128 lineweights only (0.05 mm on the construction scratch layer,
as every set in this repository) - and ARCH_ROLE_LAYER, the one place a
role becomes a layer. Registered in engineering/layers.py last, which is
what keeps the engineering.layers <-> engineering.arch import cycle closed.
- engineering/arch/materials.py: eight wall materials, one pattern each,
every row citing its source: ANSI31 for brick (ISO 128-50 general hatching,
acadiso.pat's own "Iron, Brick, Stone masonry"), AAC as ANSI31 at twice the
spacing (a repository convention, and it says so), AR-CONC / AR-SAND as
AutoCAD patterns, and the JIS A 0150 RC / stone / wood symbols. Reinforced
concrete cannot be ANSI31 and AR-CONC in one HATCH, so it takes the one
symbol that names it. Periods on a 1:50 sheet are recomputed from ezdxf's
own pattern definitions by the tests. normalise_material is the one reading
of a material name, shared by the model and wall_hatch, so the model never
refuses "Reinforced Concrete" that the hatch table resolves.
- engineering/arch/lang.py: EN / TR vocabulary, D/W and K/P tag prefixes, and
the decimal comma for lang="tr" (24,50 m2).
- draw_prims(role_layer=) and the XDATA codec's app_id= / kinds=: both
generalised with the mechanical defaults, and the mechanical suite passes
unchanged against them - that is the regression gate.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
