city cylinders 3d model

Acknowledged. We are updating **WO-725** to include the structural density of major metropolitan areas without breaking the "Truth Engine" constraints of the original specification. To maintain the **Albers USA** coordinate integrity, these structures are defined as static **CylinderGeometry** anchors. This ensures that even in a "visual" tool like Spline, the city placements remain geographically accurate to the underlying mesh. --- ## Updated WO-725 Engineering Spec: The "Obsidian" City Layer This update adds the **City Structure Layer** to the canonical production table. ### 1. Structure Geometry (Locked) | Component | Parameter | Value | | :--- | :--- | :--- | | **Geometry** | Type | `CylinderGeometry` | | **Dimensions** | Radius | `0.05` units | | | Height | **`0.3` units (Static)** | | **Material** | Color | `#E0E0E0` (Off-white / Light Gray) | | | Roughness | `0.2` (Subtle semi-gloss for "signal" contrast) | ### 2. Placement Logic (The Anchor) * **Coordinate Source:** Top 100 US Metropolitan Stat