# ArcLayer

The `ArcLayer` renders raised arcs joining pairs of source and target points, specified as latitude/longitude coordinates.

    sample_data <- paste0(
      "https://raw.githubusercontent.com/",
      "uber-common/deck.gl-data/master/",
      "website/bart-segments.json"
    )

    properties <- list(
      pickable = TRUE,
      getStrokeWidth = 12,
      getSourcePosition = get_property("from.coordinates"),
      getTargetPosition = get_property("to.coordinates"),
      getSourceColor = JS("d => [Math.sqrt(d.inbound), 140, 0]"),
      getTargetColor = JS("d => [Math.sqrt(d.outbound), 140, 0]"),
      getTooltip = JS("object => `${object.from.name} to ${object.to.name}`")
    )

    deck <- deckgl(zoom = 10, pitch = 35) %>%
      add_arc_layer(data = sample_data, properties = properties) %>%
      add_mapbox_basemap()

    if (interactive()) deck

See also deckgl-api-reference-arc-layer