Add a fill-extrusion layer to a Mapbox GL map

Usage

add_fill_extrusion_layer(
  map,
  id,
  source,
  source_layer = NULL,
  fill_extrusion_base = NULL,
  fill_extrusion_color = NULL,
  fill_extrusion_height = NULL,
  fill_extrusion_opacity = NULL,
  fill_extrusion_pattern = NULL,
  fill_extrusion_translate = NULL,
  fill_extrusion_translate_anchor = "map",
  visibility = "visible",
  slot = NULL,
  min_zoom = NULL,
  max_zoom = NULL,
  popup = NULL,
  tooltip = NULL,
  hover_options = NULL
)

Arguments

map: A map object created by the mapboxgl function.
id: A unique ID for the layer.
source: The ID of the source, alternatively an sf object (which will be converted to a GeoJSON source) or a named list that specifies type and url for a remote source.
source_layer: The source layer (for vector sources).
fill_extrusion_base: The base height of the fill extrusion.
fill_extrusion_color: The color of the fill extrusion.
fill_extrusion_height: The height of the fill extrusion.
fill_extrusion_opacity: The opacity of the fill extrusion.
fill_extrusion_pattern: Name of image in sprite to use for drawing image fills.
fill_extrusion_translate: The geometry's offset. Values are c(x, y) where negatives indicate left and up.
fill_extrusion_translate_anchor: Controls the frame of reference for fill-extrusion-translate.
visibility: Whether this layer is displayed.
slot: An optional slot for layer order.
min_zoom: The minimum zoom level for the layer.
max_zoom: The maximum zoom level for the layer.
popup: A column name containing information to display in a popup on click. Columns containing HTML will be parsed.
tooltip: A column name containing information to display in a tooltip on hover. Columns containing HTML will be parsed.
hover_options: A named list of options for highlighting features in the layer on hover.

Value

The modified map object with the new fill-extrusion layer added.

Examples

if (FALSE) { # \dontrun{
library(mapgl)

maplibre(
  style = maptiler_style("basic"),
  center = c(-74.0066, 40.7135),
  zoom = 15.5,
  pitch = 45,
  bearing = -17.6
) |>
  add_vector_source(
    id = "openmaptiles",
    url = paste0("https://api.maptiler.com/tiles/v3/tiles.json?key=",
                 Sys.getenv("MAPTILER_API_KEY"))
  ) |>
  add_fill_extrusion_layer(
    id = "3d-buildings",
    source = 'openmaptiles',
    source_layer = 'building',
    fill_extrusion_color = interpolate(
      column = 'render_height',
      values = c(0, 200, 400),
      stops = c('lightgray', 'royalblue', 'lightblue')
    ),
    fill_extrusion_height = list(
      'interpolate',
      list('linear'),
      list('zoom'),
      15,
      0,
      16,
      list('get', 'render_height')
    )
  )
} # }