{
  "name": "Fernmeldeturm Bovenden",
  "version": 1,
  "model": "src/bovenden.js",
  "location": {
    "x": 240.52,
    "z": 915.305,
    "baseY": 202.59,
    "worldConvention": "x=E-566000,y=NHN-150,z=5716000-N; EPSG:25832",
    "source": "LGLN LoD2 DENILD5500002kXT",
    "attribution": "© GeoBasis-DE / LGLN, CC BY 4.0"
  },
  "dimensionsMetres": {
    "height": 155,
    "platformDiameter": 25,
    "cabinDiameter": 17.8,
    "cabinHeight": 8.8,
    "shaftFootDiameter": 7.2,
    "shaftHeadDiameter": 5,
    "mainPlatforms": [
      75,
      83.8
    ],
    "upperPlatform": 92
  },
  "measuredDimensions": "Information board photograph. Upper platform height 92m corroborated by FMT2 type table at https://www.senderfotos.de/turmtypen/.",
  "conflicts": "The old sign marks ground level341m NN; the retained LGLN building base is352.59m NHN and matches local DGM terrain202.71+150. Geometry uses the geodata base to avoid a buried tower; vertical datum/year/site-sign discrepancy is unresolved. General Wikipedia coordinates differ by about12m from the LoD2 footprint; the footprint is retained.",
  "photoGuided": "Tapered shaft, flared concrete support, two-floor cabin, three open antenna platforms, service railings, red-white mast, dishes and cable trays based on2023 photographs.",
  "approximated": "Small fitting counts, hidden-side antennas, azimuths, window arrangement, mast segment lengths and concrete distribution are reconstructed estimates, not a measured scan or present-day antenna inventory. Existing nearby LoD2 service buildings are preserved.",
  "texture": {
    "url": "./materials/bovenden-concrete.jpg",
    "source": "City84, Fernmeldeturm Bovenden2023",
    "license": "CC BY-SA 4.0",
    "licenseUrl": "https://creativecommons.org/licenses/by-sa/4.0/",
    "changes": "Crop x1135,y4400,width160,height920; resampled256×1472,desaturated,brightened; mirrored repeats to create a weathered material. Applied to inferred surfaces, not an exact all-around photo projection."
  },
  "performance": {
    "materialBatches": 7,
    "triangles": 75860,
    "preloaded": true,
    "runtimeNetworkDependency": false
  },
  "sources": [
    {
      "title": "Fernmeldeturm Bovenden 2023",
      "author": "City84",
      "url": "https://commons.wikimedia.org/wiki/File:Fernmeldeturm_Bovenden_2023.jpg",
      "file": "bovenden-city84-2023.jpg",
      "usage": "Silhouette and antenna reference; cropped shaft photograph supplies concrete texture.",
      "license": "CC BY-SA 4.0",
      "licenseUrl": "https://creativecommons.org/licenses/by-sa/4.0/"
    },
    {
      "title": "Fernmeldeturm Bovenden von Suden und von unten 2023",
      "author": "Sipalius",
      "url": "https://commons.wikimedia.org/wiki/File:Fernmeldeturm_Bovenden_von_Suden_und_von_unten_2023.jpg",
      "file": "bovenden-sipalius-south-2023.jpg",
      "usage": "Underside, open radial catwalks, support cone and railings reference.",
      "license": "CC BY-SA 4.0",
      "licenseUrl": "https://creativecommons.org/licenses/by-sa/4.0/"
    },
    {
      "title": "Sender Bovenden – beschmierte Infotafel",
      "author": "Sipalius",
      "url": "https://commons.wikimedia.org/wiki/File:Sender_Bovenden_-_beschmierte_Infotafel.jpg",
      "file": "bovenden-sipalius-sign-2023.jpg",
      "usage": "Primary on-site information board:155m height,25m platform diameter,17.8m cabin diameter,8.8m cabin height,7.2m shaft foot and5m shaft head.",
      "license": "CC BY-SA 4.0",
      "licenseUrl": "https://creativecommons.org/licenses/by-sa/4.0/"
    }
  ]
}