{
  "id": "city-inspection-cover",
  "type": "model",
  "title": "丸形点検マンホール蓋",
  "titleEn": "Round inspection cover",
  "description": "独自の滑り止め凹凸、貫通した引き上げ穴、座枠と裏面補強リブ付きの丸形点検蓋。 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": "A round cast inspection cover with original raised traction tread, through lift slots, seating frame and underside ribs. For games and visualization; not validated for manufacture, structural engineering or 3D printing.",
  "category": "urban",
  "tags": [
    "city",
    "street",
    "original",
    "manhole",
    "inspection",
    "cover",
    "cast iron",
    "road",
    "マンホール"
  ],
  "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-inspection-cover/thumbnail.png",
  "preview": "city-inspection-cover.glb",
  "unit": "m",
  "upAxis": "Y",
  "triangles": 20154,
  "dimensions": [
    0.73,
    0.081,
    0.73
  ],
  "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. Repeated static parts are grouped into named assemblies; triangle-corner UVs and material records retained from original.",
  "provenance": {
    "method": "Original procedural geometry, followed by geometry-preserving static GLB assembly grouping",
    "tool": "Blender 4.3.2; Meshcopia city generator 1.0; grouping postprocessor with Python 3.12.14 and NumPy 2.3.5",
    "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/group_static_assemblies.py",
    "sourceSha256": "00715745aa12e7506908837c805048e86bffdcd6081fe3559a06b9bf1cf64f69",
    "stlSha256": "b5a6db4de816203ed4df0f4fa32231f7e4c7af459746c478b248b9e3206e3f4e",
    "changes": "Static repeated mesh parts grouped by original material within named major assemblies; no decimation, remeshing, UV change or material change. Candidate equivalence audited against frozen original GLB e9d35fa99548e219b0f45186dd3be09458852a690fd9b8e1cea0467b2de2497d.",
    "alternateFormat": "STL written by scripts/city/group_static_assemblies.py from exact grouped GLB triangle coordinates; meters, Y-up, no colors or UVs; no printability or manufacturing validation.",
    "baseGeneratorUrl": "https://github.com/Xenoah/meshcopia/blob/main/scripts/city/infrastructure.py",
    "postprocessGeneratorUrl": "https://github.com/Xenoah/meshcopia/blob/main/scripts/city/group_static_assemblies.py"
  },
  "usages": [
    {
      "relationship": "original",
      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
      "sourcePaths": [
        "scripts/city/infrastructure.py",
        "scripts/city/common.py",
        "scripts/city/group_static_assemblies.py",
        "scripts/city/infrastructure_manhole_optimized.py",
        "scripts/city/render_grouped_assemblies.py"
      ],
      "selectors": [
        "city-inspection-cover"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
  "pageUrl": "https://xenoah.github.io/meshcopia/assets/city-inspection-cover/",
  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-inspection-cover.json",
  "attribution": "Round inspection cover by Xenoah / Meshcopia\nhttps://xenoah.github.io/meshcopia/assets/city-inspection-cover/\nCC BY 4.0 — https://creativecommons.org/licenses/by/4.0/\nChanges: Static repeated mesh parts grouped by original material within named major assemblies; no decimation, remeshing, UV change or material change. Candidate equivalence audited against frozen original GLB e9d35fa99548e219b0f45186dd3be09458852a690fd9b8e1cea0467b2de2497d.",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
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      "url": "https://xenoah.github.io/meshcopia/assets/city-inspection-cover/source/city-inspection-cover.glb"
    },
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      "url": "https://xenoah.github.io/meshcopia/assets/city-inspection-cover/source/city-inspection-cover.stl"
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  ],
  "downloads": {
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      "schemaVersion": 1,
      "id": "city-inspection-cover",
      "assetVersion": "1.0.0",
      "packageVersion": "1.0.0",
      "contentPolicy": "fbx-required-textures-single-notice-v1",
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      "archive": {
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      "files": [
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          "bytes": 674204,
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          "fetch": {
            "kind": "chunks-gzip-v1",
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      "notice": {
        "bytes": 657,
        "filename": "LICENSE.txt",
        "sha256": "0eb6c79cbbe749eb7fd1a61558a3c6f5d610b8d7d7afcff0b860b08c54647f8f",
        "text": "Round inspection cover 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-inspection-cover/\nProvided as-is, without warranties (license Section 5).\nChanges: Static repeated mesh parts grouped by original material within named major assemblies; no decimation, remeshing, UV change or material change. Candidate equivalence audited against frozen original GLB e9d35fa99548e219b0f45186dd3be09458852a690fd9b8e1cea0467b2de2497d.\nAdditional changes: Converted unchanged source GLB geometry to FBX, with documented compatible material/texture derivatives.\n"
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        "state": "published-verified"
      }
    }
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  "previewUrl": "https://xenoah.github.io/meshcopia/assets/city-inspection-cover/source/city-inspection-cover.glb"
}