{
  "schema_version": 1,
  "name": "奉贤供水数字城市场景",
  "crs": "EPSG:3857",
  "geojson_crs": "EPSG:4326",
  "bbox": [
    121.3467333,
    30.6803212,
    121.8495682,
    31.0182303
  ],
  "building_count": 154085,
  "pipe_count": 90805,
  "building_sources": {
    "OpenStreetMap": 3617,
    "Overture": 150468
  },
  "asset_count": 63968,
  "generated_at": "2026-09-22T09:09:36.585868+00:00",
  "notice": "建筑高度多为估算；管道为地表专题展示，埋深未知。2020 年资料存在头桥覆盖缺口。",
  "attribution": "© OpenStreetMap contributors · Overture Maps Foundation · 用户提供的供水 GIS",
  "license_url": "https://www.openstreetmap.org/copyright",
  "tiles": {
    "buildings": {
      "minzoom": 12,
      "maxzoom": 16,
      "layer": "buildings",
      "sha256": "e00ebbc98d1cf86a18147317e53813b24a9975915c38d4778ca42df1bf5f3ad8"
    },
    "pipes": {
      "minzoom": 10,
      "maxzoom": 17,
      "layer": "pipes"
    },
    "assets": {
      "minzoom": 12,
      "maxzoom": 17,
      "layer": "assets"
    },
    "pipe-solids": {
      "minzoom": 16,
      "maxzoom": 18,
      "layer": "pipe_solids"
    }
  },
  "models": {
    "hydrant": "models/hydrant.glb",
    "valve": "models/valve.glb",
    "control_valve": "models/valve.glb",
    "flow_meter": "models/flow-meter.glb"
  }
}