Add protobuf vector tiles

Loads remote Mapbox Vector Tiles (.pbf / .mvt) with L.vectorGrid.protobuf. Style each vector-tile layer by name via vectorStyling (OpenMapTiles / Mapbox / Nextzen names).

Usage

addProtobuf(
  map,
  urlTemplate,
  attribution = NULL,
  layerId = NULL,
  group = NULL,
  key = NULL,
  interactive = TRUE,
  options = leaflet::tileOptions(),
  popup = NULL,
  label = NULL,
  styling = vectorStyling(),
  data = getMapData(map)
)

Arguments

map: a map widget object created from leaflet()
urlTemplate: Tile URL with {z}, {x}, {y}. Use {key} together with key for API tokens.
attribution: the attribution text of the tile layer (HTML)
layerId: the layer id
group: the name of the group the newly created layers should belong to (for clearGroup() and addLayersControl() purposes). Human-friendly group names are permitted–they need not be short, identifier-style names. Any number of layers and even different types of layers (e.g., markers and polygons) can share the same group name.
key: Optional API key substituted into {key} in the URL.
interactive: Whether the layer fires mouse events. Default TRUE.
options: a list of extra options for tile layers, popups, paths (circles, rectangles, polygons, ...), or other map elements
popup: Name of a feature property shown in a popup on click.
label: Name of a feature property shown as a tooltip on hover.
styling: Named list of path styles, one per vector-tile layer name. See vectorStyling.
data: the data object from which the argument values are derived; by default, it is the data object provided to leaflet() initially, but can be overridden

Value

the new map object

Details

In Shiny a click updates input$MAPID_vectorgrid_pbf_click.

References

https://github.com/Leaflet/Leaflet.VectorGrid

Examples

if (FALSE) { # \dontrun{
leaflet() %>%
  addTiles() %>%
  addProtobuf(
    urlTemplate = "https://vector.openstreetmap.org/shortbread_v1/{z}/{x}/{y}.mvt",
    layerId = "osm",
    attribution = "OpenStreetMap"
  )
} # }