No pattern-to-station data exists in the drawings. Per user decision
(2026-10-21) the modelled range 4+745..5+480 is split into 2 m segments with
arbitrary pattern names, marked placeholder in CSV, meta and viewer, to be
replaced later. Ring step reduced to 1 m so that the 2 m segments align.
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A
build_skeleton.py sweeps the confirmed standard section (R6982 inner, 300 mm
lining, R7402 excavation, crown 6.615 m above road) along the centreline for
4+745..5+480, road = 계획고, ground = 지반고 band. Walls and invert are
approximations and recorded in meta. Verified: inner radius identity, crown
height, chord length 799.9 m for 4+700..5+500. Viewer uses three.js 0.160.0.
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A
Table 1 (R1..R3', phi1/phi2) and table 2 (A..K, 라이닝 두께 300) are parsed by
S(%) rows +3..-3. R1=6982, R3'=4699, R2'=3910 match the arc list; lining
thickness 300 mm matches the concrete arc band. Units of a..f and the
cross-slope station ranges need HITL confirmation.
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A
Ruler 4+740..5+480 (38 stations, 20 m). Two decimal series per station:
A (|across|~33 m) varies with terrain; B (|across|~16 m) rises ~0.498 m per
station (2.49% grade). Series naming and the ruler scale (chord ~21.27 m per
20 m station) are left to HITL. Output is a draft; no value is adjusted.
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A
extract_alignment_plan.py takes the midpoint of each station's two side
ticks (CA-ALGN-STSM) as the centreline point. Sheet 001 gives 4+700..5+500
with consecutive residual <= 0.02 m. Sheet 002 gives identical output, so
the duplicate question is left to HITL. Profile EL is not yet extracted.
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A
Scans 21 main-line DXF files (02 평면·종단, 03 본선굴착, 04 본선기타) for
header, layers, entity counts, extents, 3D flag and text samples. Strict
load failures fall back to ezdxf recover mode and are recorded.
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A
Claude