Experimental
PDF reconstruction experiment
A short, hand-authored 4-step sequence with independent ground truth. Retrieved-model success (Christmas Train 40138, Gold Chassis LDraw) is not counted here. Icons 10300 is still model-required.
Expansion gate
Seen posed axes meet the fixture bar. Expansion to arbitrary manuals is still closed — only this 4-step experiment may show experimental geometry.
scope: gold-4-step-only
Pages
- p1 · Coverseen
Gold Chassis fixture — BrickMorph 4-step experiment. Not a retail set. Not 10300. Not 40138.
- p2 · Step 1seen
Step 1 1x 3034 black 2x8 plate on the table
- p3 · Step 2seen
Step 2 1x 3001 red 2x4 brick on those studs
- p4 · Step 3seen
Step 3 1x 3039 red 2x2 slope on the remaining studs
- p5 · Step 4 (held-out evaluation)unseen
Step 4 4x 4624 light gray wheel 4x 3641 black tire beside the chassis
- p6 · Smeared calloutholdout · unresolved
Step ? 2x ??? red
Per-axis scores
Axes are not averaged. A color miss is not an identity pass being hidden.
| Axis | Seen posed | Seen callouts | Unseen after reveal |
|---|---|---|---|
| identity | 100% 3/3 | 100% | 100% |
| color | 100% 3/3 | 100% | 100% |
| quantity | 100% 3/3 | 100% | 100% |
| position | 100% 3/3 | 100% | 100% |
| orientation | 100% 3/3 | 100% | n/a |
| order | 100% 3/3 | 100% | n/a |
Held-out step 4 was absent from the seen reconstruction (0 invented unseen parts). Unreadable callouts: 1.
Unresolved
Page 6: Step ? 2x ??? red
Callout is unreadable. Left unresolved — not substituted with 3001.
Retrieved-model success is separate. LEGO 40138-1 Christmas Train (Philo, CCAL 2.0, 227 imported instances) and the Gold Chassis LDraw fixture are not reconstruction accuracy. Icons 10300 still requires a compatible assembled model.
The LDraw and 40138 buttons open retrieved models. They are not reconstruction scores.