Build a MapLibre GL style fragment — ox_to

Writes the edges to a GeoJSON file and returns a MapLibre GL JS style fragment (a list with sources and layers) that references it, ready to merge into a map style. Serialize with, e.g., jsonlite::toJSON(..., auto_unbox = TRUE).

Usage

ox_to_maplibre(
  g,
  path,
  source_id = "osmnxr",
  layer_id = "streets",
  url = basename(path)
)

Arguments

g: An osm_graph.
path: GeoJSON output path for the edge data.
source_id, layer_id: Identifiers for the MapLibre source and layer.
url: URL the style should use to fetch the data. Defaults to basename(path).

Value

A named list with sources and layers, invisibly written data to path.

Examples

g <- example_osm_graph()
style <- ox_to_maplibre(g, tempfile(fileext = ".geojson"))
names(style)
#> [1] "sources" "layers"