geo: add block extract, boundary verification, and the carried-over reference set

Inventory the sibling security-game project and copy only the evidence: nine
licensed photos with their sidecar provenance into Art/reference/hollywood/,
now LFS-tracked. Add the block-wide OSM extract with a manifest, resolve the
demo bounds (Orange Dr -118.341434 .. Highland Ave -118.338718, 279 m) and the
south/north building sets, and add Geo/scripts/block_report.py to reproduce it.

The sibling docs place the El Capitan Theatre west of 6840; OSM geometry and
the house numbering put it east. Recorded with the two unresolved measurement
conflicts rather than averaged.
This commit is contained in:
zwitschi committed 2026-11-06 21:47:29 +01:00
1 parent cbcee4040b
commit 737e16e7db
7 files changed
+28069 -16

No files matched your search

@@ -49,14 +49,46 @@ Its west edge (−118.3400228) abuts the east edge of 6840 (−118.3400194): the
**Rule applied:** the similarly named "El Capitan Theatre" and "El Capitan Entertainment Centre" are distinct structures. They are not merged, and the façade work for one does not authorise geometry for the other.
## Demo bounds and building set
From the block extract in [`../manifests/2026-11-06-osm-api-map.md`](../manifests/2026-11-06-osm-api-map.md) (`Geo/raw/osm-api-map-2026-11-06.osm`, 3565 nodes, 350 ways).
Intersections on the boulevard:
| Junction | Node coordinate |
| --- | --- |
| Hollywood Blvd × North Orange Drive | 34.101543, −118.341434 (and a second node at −118.341749 on the boulevard's south carriageway split) |
| Hollywood Blvd × North Highland Avenue | 34.101545, −118.338718 |
The block between them spans **279 m** of frontage. Boulevard centreline inside the block sits at latitude ≈ 34.101544.
South frontage, west to east (the `0.1.0` south set):
| Way | Address | Name | Tags | Height |
| --- | --- | --- | --- | --- |
| 424024151 | 6922 | — | commercial, 12 levels | no `height` tag |
| 206486872 | 6902 | — | retail | 13.8 |
| **424024147** | **6840** | **El Capitan Entertainment Centre** | **theatre** | **14.5** |
| **424024148** | **6838** | **El Capitan Theatre** | **cinema, 6 levels** | **no `height` tag** |
| 424024144 | 6822 | Budget | car_rental | 5.5 |
| 424024150 | 6806–6820 | — | retail | 12.1 |
| 424024149 | 6800 | Lee Drug Building | retail | 12.1 |
North side within the 50 m buffer (measured from the boulevard centreline, so these are the only two buildings inside the buffer):
| Way | Address | Name | Tags | Distance from centreline | Height |
| --- | --- | --- | --- | --- | --- |
| 424105908 | 6925 | TCL Chinese Theatre | cinema | 30.1 m | 18.1 |
| 424105889 | 6933 | Madame Tussaud's | commercial | 37.3 m | 15.9 |
Excluded and why: `6780` (Bank of America) and everything east of it is east of Highland, outside the block. Madison Apartments (1746 N Orange Dr) and the Orange Drive apartments are 155 m back from the boulevard. One unnamed retail way sits 66 m back — outside the buffer. `building:part` roof ways are detail, not separate structures.
## Still unverified
These block parts of `0.1.0` and are not fixed by this pass:
- **Pavement and roadway widths.** The extract carries no sidewalk or carriageway widths. Needed for the walkable demo, the crossing, and street scale against the reference photos.
- **Crossing location.** No marked crossing geometry confirmed yet, and `0.1.0` requires one designated crossing.
- **Elevation.** No DEM checked. The choice between using a separately licensed DEM and skipping it depends on measured height variation across the 279 m block.
- **North-side reference photography.** Both north-side buildings are in scope and neither appears in the reference set. They cannot be detailed from evidence yet.
- **Façade width conflict.** 29.6 m from the sibling project's venue notes against the 25.7 m OSM bbox; recorded in [`../../Art/reference/hollywood/NOTES.md`](../../Art/reference/hollywood/NOTES.md) and unresolved.
- **Demo bounds.** The block must run between Highland Avenue and Orange Drive. Neither intersection node has been confirmed yet, so the bounding box for the OSM extract is not final.
- **North-side frontage within 50 m.** Buildings on the opposite side of the boulevard inside that buffer have not been enumerated.
- **Which structures the brief actually includes.** The south-side frontage between Highland and Orange needs the full set of building ways, not just the hero address.
- **Street centreline, sidewalk widths, crossing location.** Required for the walkable demo and the designated crossing; all unmeasured.
- **Elevation.** No DEM checked yet; the decision on separately licensed elevation data depends on measured height variation across the bounds.
Next step: fetch a versioned OSM extract covering the wider block, write its manifest with date, source, bounds, and checksum, then enumerate the buildings inside the demo boundary and record each one's verification status.
Next: measure roadway and sidewalk widths, fix the local CRS and origin, and resolve the façade-width conflict before any façade modelling.