Add vector data to leaflet map directly from the file system

Usage

addLocalFile(
  map,
  file,
  layerId = NULL,
  group = NULL,
  popup = NULL,
  label = NULL,
  radius = 10,
  stroke = TRUE,
  color = "#03F",
  weight = 5,
  opacity = 0.5,
  fill = TRUE,
  fillColor = color,
  fillOpacity = 0.2,
  dashArray = NULL,
  options = NULL
)

Arguments

map: a mapview or leaflet object.
file: file path to the file to be added to map. NOTE: will be reprojected on-the-fly if not in "longlat".
layerId: the layer id.
group: the group name for the file to be added to map.
popup: either a logical of whether to show the feature properties (fields) in popups or the name of the field to show in popups.
label: name of the field to be shown as a tooltip.
radius: the size of the circle markers.
stroke: whether to draw stroke along the path (e.g. the borders of polygons or circles).
color: stroke color.
weight: stroke width in pixels.
opacity: stroke opacity.
fill: whether to fill the path with color (e.g. filling on polygons or circles).
fillColor: fill color.
fillOpacity: fill opacity.
dashArray: a string that defines the stroke dash pattern.
options: a list of extra options for tile layers, popups, paths (circles, rectangles, polygons, ...), or other map elements.

Examples

if (interactive()) {
  library(leafem)
  library(leaflet)
  library(sf)

  destfile = tempfile(fileext = ".gpkg")

  st_write(st_as_sf(gadmCHE), dsn = destfile)

  leaflet() %>%
    addTiles() %>%
    addLocalFile(destfile, popup = TRUE)
}