# `Sidereon.Terrain.MmapTerrain.TerrainStoreTileIndex`
[🔗](https://github.com/neilberkman/sidereon-ex/blob/main/lib/sidereon/terrain/mmap_terrain.ex#L178)

Metadata for one tile record in a terrain store.

# `t`

```elixir
@type t() :: %Sidereon.Terrain.MmapTerrain.TerrainStoreTileIndex{
  checksum64: non_neg_integer(),
  data_len: non_neg_integer(),
  data_offset: non_neg_integer(),
  lat_count: non_neg_integer(),
  lat_index: integer(),
  lon_count: non_neg_integer(),
  lon_index: integer(),
  max_latitude_deg: float(),
  max_longitude_deg: float(),
  min_latitude_deg: float(),
  min_longitude_deg: float(),
  vertical_datum: Sidereon.Terrain.MmapTerrain.VerticalDatum.t()
}
```

Parsed tile index record.

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*Consult [api-reference.md](api-reference.md) for complete listing*