{
  "title": "Leonida Atlas source-derived basemap",
  "source": "Yanis v17 GTA VI Community Map via GTADB",
  "sourceRevision": "6acc1b555ed68255078b850f5d4a984610fa1910",
  "sourceUrl": "https://github.com/rolux/gtadb.org/tree/6acc1b555ed68255078b850f5d4a984610fa1910/maps",
  "license": "CC BY 4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "credit": "gtadb.org and contributors",
  "confidence": "APPROXIMATE",
  "official": false,
  "derivative": "Shown as drawn: cropped to the map area and resampled, with the source map's own colours, labels and annotations left unmodified. Nothing is recoloured, suppressed or painted over. The source legend, credits and screenshot panel lie outside the crop and are not shown.",
  "method": "Decode each pinned zoom-5 JPEG tile in rows 21-95 and columns 21-79, downsample it 2:1 with Lanczos and place it by exact canonical world registration. No pixel classification, recolouring, annotation suppression or coast halo. The SVG embeds the same raster resized to 4096 px with Lanczos. Areas with no map source are filled with one flat UNKNOWN colour. No fabricated land or road geometry. No elevation.bin used.",
  "transform": "world x = GTADB x * 2; SVG y = world z = -GTADB y * 2",
  "bounds": {
    "minX": -32000,
    "minY": -24000,
    "width": 40000,
    "height": 40000
  },
  "geographicCoverage": {
    "minX": -22000,
    "minY": -22016,
    "maxX": 8000,
    "maxY": 16000
  },
  "excludedSource": "West of the source map frame line (global source x < 5384) and rows above zoom-5 row 21, which have no tiles: these areas are UNKNOWN, not sea. The source legend, credits and screenshot panel lie east of global source x 20383 (GTADB x 3999), outside the canonical east bound.",
  "resolution": {
    "width": 10000,
    "height": 10000,
    "approximateWorldUnitsPerPixel": 4
  },
  "defaultSvgResolution": {
    "width": 4096,
    "height": 4096,
    "approximateDecodedRgbaMiB": 64
  },
  "projectPreviewBounds": {
    "minX": -22000,
    "minY": -22016,
    "width": 30000,
    "height": 38016
  },
  "files": {
    "svg": "basemap.svg",
    "optionalFullDetailRaster": "basemap.webp",
    "preview": "preview.webp",
    "projectPreview": "project-preview.webp"
  },
  "tilesProcessed": 4425,
  "sourceBytesSha256": "f62354e4dc44e10f37578c95365285f7507b885aa567e63250956c301d05cec5"
}