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  "attribution": "Mapzen; SRTM/GMTED2010 terrain data courtesy of the U.S. Geological Survey",
  "modifications": "bilinear resampling; gridSpacingMeters records sampling, not source accuracy; display scaling recorded in city metadata",
  "center": [
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  "sourceSizeKm": 48,
  "renderBoundsWorld": [
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  "renderExtentKm": [
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  "heightExaggeration": 4.0,
  "datumSubtractedMeters": 1886,
  "lakeRelation": 254775,
  "lakeAreaKm2": 300.23311781785475,
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  "osmAttribution": "© OpenStreetMap contributors, ODbL",
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      "id": 7106744035,
      "position": [
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      "id": 1094543857,
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    "海埂公园": {
      "type": "relation",
      "id": 16653638,
      "position": [
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  "riverWays": [
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  "water": "Complete mapped Dianchi outline including Caohai and islands. Fixed artistic lake level; animated wave highlights are not current vectors. Panlong follows mapped centreline north to south, culverts omitted, display river width about 48m, not surveyed banks or real-time hydrology.",
  "terrain": "Own DEM, 3x3 median and Gaussian .8; 4x relative relief; 170m shoreline feather and softened crop edge. Grid interval is sampling, not guaranteed source accuracy.",
  "vegetation": "Mapped woodland and parks; stylised instanced canopies, not an individual-tree survey.",
  "landmarks": "Daguan Pavilion is a three-storey silhouette at mapped footprint, enlarged for legibility; Dragon Gate is a small rock gateway at mapped location. Neither is a measured architectural reconstruction.",
  "sources": [
    "https://www.kmxishan.com/",
    "https://dnr.yn.gov.cn/html/2018/ziranziyuanxinxi_0408/20947.html",
    "https://www.ynce.gov.cn/html/190715/10208.html",
    "https://www.zgbk.com/ecph/words?ID=291898&Preview=false&SiteID=1&Type=bkdzb"
  ]
}