{
  "id": "city-playground-roundabout",
  "type": "model",
  "title": "ベンチと手すり付き公園回転遊具",
  "titleEn": "Playground roundabout with seats and rails",
  "description": "公園の遊び場に配置する、円形デッキと固定ベンチを備えた回転遊具の静的モデル。縁枠と滑り止め風の桟、三つの湾曲座面、中央の環状グリップと外側手すり、足元金具、下面の放射状補強、軸受風ハブと接地プレートを造形。全体で1点です。回転・衝突判定はなく、実用品の安全性・耐荷重・規格適合は未検証です。 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）2.130 × 0.947 × 2.130 m、22,344三角形。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": "A static roundabout assembly for playground scenes, with a circular deck and three fixed curved benches. It has a rim, raised grip-looking strips, central ring grip and outer rails, foot sockets, radial underside stiffeners, bearing-looking hub and grounded anchor plate. The whole assembly counts as one model. Rotation and collision behavior are absent; real-equipment safety, load capacity and standards compliance are unvalidated. For games and visualization; not validated for manufacture, structural engineering or 3D printing. Bounding dimensions (X×Y×Z): 2.130 × 0.947 × 2.130 m; 22,344 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",
    "playground",
    "roundabout",
    "round-deck",
    "回転遊具"
  ],
  "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/b615362827db10ceec5db3c589a05ce68ea827d6/content/assets/city-playground-roundabout/preview.png",
  "preview": "city-playground-roundabout.glb",
  "unit": "m",
  "upAxis": "Y",
  "triangles": 22344,
  "dimensions": [
    2.13,
    0.946923,
    2.13
  ],
  "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-054/scripts/city_expansion/active_park_equipment.py",
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    "alternateFormat": "STL triangulated from the exact reimported GLB, metre-valued Y-up coordinates. No printability or manufacture validation.",
    "stlSha256": "2bd6d5a13ce5ce87e2e707a4a5c9b771fff5085259429253988daebf78b31261"
  },
  "usages": [
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      "relationship": "original",
      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
      "sourcePaths": [
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        "scripts/city_expansion/frozen/batch-054/scripts/city_expansion/common.py"
      ],
      "selectors": [
        "city-playground-roundabout"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
  "pageUrl": "https://xenoah.github.io/meshcopia/assets/city-playground-roundabout/",
  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-playground-roundabout.json",
  "attribution": "Playground roundabout with seats and rails by Xenoah / Meshcopia\nhttps://xenoah.github.io/meshcopia/assets/city-playground-roundabout/\nCC BY 4.0 — https://creativecommons.org/licenses/by/4.0/\nChanges: none. If modified, replace this line with a description of your changes.",
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        "sha256": "a23014fd4ded33396f1648fa75d385033f990e9736d3c1f73f485cda6574c738",
        "text": "Playground roundabout with seats and rails 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-playground-roundabout/\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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}