{
  "id": "city-roof-access-hatch",
  "type": "model",
  "title": "開放状態の屋上出入口",
  "titleEn": "Open roof access hatch",
  "description": "開いた断熱蓋、中空の立ち上がり枠、ヒンジ、支持ステー、ハンドルを備える人用屋上ハッチ。 ゲーム・可視化向け。製造・構造設計・3Dプリント用途は未検証。",
  "descriptionEn": "An open personnel roof hatch with hollow coaming, insulated lid, hinges, gas stays and pull handle. For games and visualization; not validated for manufacture, structural engineering or 3D printing.",
  "category": "urban",
  "tags": [
    "city",
    "street",
    "original",
    "urban-structure",
    "access",
    "roof-access-hatch"
  ],
  "author": "Xenoah",
  "license": "CC-BY-4.0",
  "version": "1.0.0",
  "status": "public",
  "created": "2026-10-14",
  "updated": "2026-10-14",
  "thumbnail": "https://xenoah.github.io/meshcopia/assets/city-roof-access-hatch/thumbnail.png",
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  "unit": "m",
  "upAxis": "Y",
  "triangles": 3728,
  "dimensions": [
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    1.239568,
    1.2675
  ],
  "uv": "Per-component primitive or automatically unwrapped UVs. Overlapping between components; not a packed unique lightmap atlas. Solid-color PBR materials; no external textures. STL has no colors or UVs.",
  "provenance": {
    "method": "Original AI-agent-authored procedural city geometry",
    "tool": "Blender 4.3.2; Meshcopia city generator 1.0",
    "rights": "Original geometry and material design created for Xenoah Meshcopia under the owner request for CC-BY-4.0 publication. No third-party meshes, scans, brands, logos or font files.",
    "generatorUrl": "https://github.com/Xenoah/meshcopia/blob/main/scripts/city/access_structures.py",
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      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
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        "scripts/city/access_structures.py",
        "scripts/city/common.py",
        "scripts/city/access.py",
        "scripts/city/access_extra.py"
      ],
      "selectors": [
        "city-roof-access-hatch"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
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  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-roof-access-hatch.json",
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        "sha256": "6c31ed27c527b92e67c1f97b2628d8d5dfa63d2378d8d35653d40560ed93e35c",
        "text": "Open roof access hatch by Xenoah / Meshcopia\nCopyright (c) 2026 Xenoah\nCC BY 4.0: https://creativecommons.org/licenses/by/4.0/\nSource: https://xenoah.github.io/meshcopia/assets/city-roof-access-hatch/\nProvided as-is, without warranties (license Section 5).\nChanges: none.\nAdditional changes: Converted unchanged source GLB geometry to FBX, with documented compatible material/texture derivatives.\n"
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}