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Retrieve (Spatially Filtered) Overture Datasets

Source: R/open_curtain.R
open_curtain.Rd

Fetches overture data from AWS. If a bounding box is provided, it applies spatial filtering to only include records within that area. The core code is copied from duckdbfs, which deserves all credit for the implementation

Usage

open_curtain(
  type,
  spatial_filter = NULL,
  theme = get_theme_from_type(type),
  conn = NULL,
  as_sf = FALSE,
  mode = "view",
  tablename = NULL,
  read_opts = list(),
  base_url = "s3://overturemaps-us-west-2/release/2024-08-20.0",
  bbox = NULL
)

Arguments

type

A string specifying the type of overture dataset to read. Setting to "*" or NULL will read all types for a given theme.

spatial_filter

An object to spatially filter the result.

theme

Inferred from type by default. Must be set if type is "*" or NULL

conn

A connection to a duckdb database.

as_sf

If TRUE, return an sf dataframe

mode

Either "view" (default) or "table". If "table", will download the dataset into memory.

tablename

The name of the table to create in the database.

read_opts

A named list of key-value pairs passed to DuckDB's read_parquet

base_url

Allows user to download data from a different mirror, such as a local directory, or a alternative release.

bbox

alias for spatial_filter. may be deprecated in the future.

Value

An dbplyr lazy dataframe, or an sf dataframe if as_sf is TRUE

Examples

if (FALSE) { # interactive()
bbox <- c(xmin = -120.5, ymin = 35.5, xmax = -120.0, ymax = 36.0)
open_curtain("building", bbox)
}