{
  "id": "city-library-book-trolley",
  "type": "model",
  "title": "図書館用の傾斜棚ブックトロリー",
  "titleEn": "Inclined-shelf library book trolley",
  "description": "図書館の書架間や返却カウンター付近で本を運ぶ、空の両面三段ブックトロリー。六つの傾斜棚、中央背当て、端部の本止め、棚下の支持材、握り付きの端部フレームと両側フォーク付き四輪キャスターを造形。床に配置する静的モデルで、本・人、積載能力の検証や車輪・ブレーキの動作は含みません。 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。 外接寸法（X×Y×Z）1.032 × 1.127 × 0.497 m、26,876三角形。単位m・Y-up、水平中央の接地用原点、最下点Y=0。部品ごとの重複UV0と単色PBR材質を収録し、画像テクスチャ・UV2・コライダー・LOD・リグ・動作は付属しません。静的表示用でUnity/VRChat実機検証は未実施。STLはm・Y-up座標の形状のみで色・材質・UV・階層を含みません。",
  "descriptionEn": "An empty double-sided three-tier book trolley for library stacks and return counters. Six inclined trays have central back supports, dedicated end bookends, underside cradles, gripped end frames and four offset casters with paired fork cheeks. Place on an interior floor. Books, people, load-rating validation and wheel or brake behavior are absent. For games and visualization; not validated for manufacture, structural engineering or 3D printing. Bounding dimensions (X×Y×Z): 1.032 × 1.127 × 0.497 m; 26,876 triangles. Metres, Y-up, horizontally centered placement origin with minimum Y=0, not an articulation or wall-mount pivot. Includes overlapping component UV0 and constant-color PBR materials, with no image textures, unique UV2, colliders, LOD, rig or runtime behavior. Static visualization only; Unity/VRChat editor and runtime tests have not been performed. STL uses metre-valued Y-up coordinates and contains geometry only, without color, materials, UVs or hierarchy.",
  "category": "urban",
  "tags": [
    "city",
    "street",
    "original",
    "library",
    "book-trolley",
    "inclined-shelf",
    "interior",
    "図書館"
  ],
  "author": "Xenoah",
  "license": "CC-BY-4.0",
  "version": "1.0.0",
  "status": "public",
  "created": "2026-10-14",
  "updated": "2026-10-14",
  "thumbnail": "https://raw.githubusercontent.com/Xenoah/meshcopia/19446e7a974ccf0130721a39654cbf386a627b7d/content/assets/city-library-book-trolley/preview.png",
  "preview": "city-library-book-trolley.glb",
  "unit": "m",
  "upAxis": "Y",
  "triangles": 26876,
  "dimensions": [
    1.031768,
    1.127,
    0.4973
  ],
  "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 original city expansion 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_expansion/frozen/batch-022/scripts/city_expansion/shared_interior_furnishings.py",
    "sourceSha256": "1d2d7efb8f140113cff54ff56fa843b6456e89d127691b03f48b5233489a08e1",
    "sourceRecipeSha256": "ca5620269ca5648af771b2618f378cb3cc674cc54691a40a27124106768b890e",
    "sourceHelpersSha256": "99ea76b4c3073b3ec2cfdf732e987c7977bfe5efc986b4a077df8db35a6f9d15",
    "alternateFormat": "STL triangulated from the exact reimported GLB, metre-valued Y-up coordinates. No printability or manufacture validation.",
    "stlSha256": "aab11da130e280286157399ad883ba16e4ded787b00c701aa7773669305b7cf1"
  },
  "usages": [
    {
      "relationship": "original",
      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
      "sourcePaths": [
        "scripts/city_expansion/frozen/batch-022/scripts/city_expansion/shared_interior_furnishings.py",
        "scripts/city_expansion/frozen/batch-022/scripts/city_expansion/common.py"
      ],
      "selectors": [
        "city-library-book-trolley"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
  "pageUrl": "https://xenoah.github.io/meshcopia/assets/city-library-book-trolley/",
  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-library-book-trolley.json",
  "attribution": "Inclined-shelf library book trolley by Xenoah / Meshcopia\nhttps://xenoah.github.io/meshcopia/assets/city-library-book-trolley/\nCC BY 4.0 — https://creativecommons.org/licenses/by/4.0/\nChanges: none. If modified, replace this line with a description of your changes.",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "files": [
    {
      "name": "city-library-book-trolley.glb",
      "format": "GLB",
      "bytes": 1428252,
      "sha256": "1d2d7efb8f140113cff54ff56fa843b6456e89d127691b03f48b5233489a08e1",
      "url": "https://xenoah.github.io/meshcopia/assets/city-library-book-trolley/source/city-library-book-trolley.glb"
    },
    {
      "name": "city-library-book-trolley.stl",
      "format": "STL",
      "bytes": 1343884,
      "sha256": "aab11da130e280286157399ad883ba16e4ded787b00c701aa7773669305b7cf1",
      "url": "https://raw.githubusercontent.com/Xenoah/meshcopia/19446e7a974ccf0130721a39654cbf386a627b7d/content/assets/city-library-book-trolley/source/city-library-book-trolley.stl"
    }
  ],
  "downloads": {
    "delivery": {
      "schemaVersion": 1,
      "id": "city-library-book-trolley",
      "assetVersion": "1.0.0",
      "packageVersion": "1.0.0",
      "contentPolicy": "fbx-required-textures-single-notice-v1",
      "sourceFiles": [
        {
          "bytes": 1428252,
          "name": "city-library-book-trolley.glb",
          "sha256": "1d2d7efb8f140113cff54ff56fa843b6456e89d127691b03f48b5233489a08e1"
        },
        {
          "bytes": 1343884,
          "name": "city-library-book-trolley.stl",
          "sha256": "aab11da130e280286157399ad883ba16e4ded787b00c701aa7773669305b7cf1"
        }
      ],
      "archive": {
        "bytes": 845113,
        "filename": "city-library-book-trolley-1.0.0-fbx-minimal-1.0.0.zip",
        "sha256": "1d8e6938ea7ee71e3af177d5154ab157345ea4a9badd844d768e51aa7936d7b8",
        "url": "https://github.com/Xenoah/meshcopia/releases/download/cohort-new251-v1.0.0/city-library-book-trolley-1.0.0-fbx-minimal-1.0.0.zip"
      },
      "files": [
        {
          "name": "city-library-book-trolley.fbx",
          "format": "FBX",
          "bytes": 937436,
          "sha256": "7a06f5fb86702940289ea84fc45d0a888a5216a54b4b82544d5633b95e89d100",
          "url": "https://github.com/Xenoah/meshcopia/releases/download/cohort-new251-v1.0.0/city-library-book-trolley.fbx",
          "fetch": {
            "kind": "chunks-gzip-v1",
            "url": "https://xenoah.github.io/meshcopia/download-data/49fdd5c050e39d4ce42dfee08328a92d26a002e49f768dec638d4b6ea09f8945.json",
            "bytes": 1488,
            "sha256": "49fdd5c050e39d4ce42dfee08328a92d26a002e49f768dec638d4b6ea09f8945"
          }
        }
      ],
      "notice": {
        "bytes": 413,
        "filename": "LICENSE.txt",
        "sha256": "f66be65361796ff876a67b2cdc17d5bf604ce09caf2bff36d010af78007e46e4",
        "text": "Inclined-shelf library book trolley 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-library-book-trolley/\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"
      },
      "verification": {
        "fCommit": "58c092992430326c3aad463072dba6507003a058",
        "inventorySha256": "bb5a0cc2c72f78e8097aef922bd419180a0c4147fadc88c56473f0f78f58c53d",
        "releaseId": 415820647,
        "releaseTag": "cohort-new251-v1.0.0",
        "state": "published-verified"
      }
    }
  },
  "previewUrl": "https://xenoah.github.io/meshcopia/assets/city-library-book-trolley/source/city-library-book-trolley.glb"
}