leaflet.extras2 (version 1.3.1)

addWMS: Add Queryable WMS Layer

Description

A Leaflet plugin for working with Web Map services, providing: single-tile/untiled/nontiled layers, shared WMS sources, and GetFeatureInfo-powered identify.

You can also use CQL-Filters by appending a string to the 'baseUrl'.

Something like 'http://server/wms?cql_filter=attribute=value'

Usage

addWMS(
  map,
  baseUrl,
  layerId = NULL,
  group = NULL,
  options = WMSTileOptions(),
  attribution = NULL,
  layers = NULL,
  popupOptions = NULL,
  checkempty = FALSE,
  data = getMapData(map)
)

Value

the new map object

Arguments

map

a map widget object created from leaflet()

baseUrl

a base URL of the WMS service

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.

options

a list of extra options for tile layers, popups, paths (circles, rectangles, polygons, ...), or other map elements

attribution

the attribution text of the tile layer (HTML)

layers

comma-separated list of WMS layers to show

popupOptions

List of popup options. See popupOptions. Default is NULL.

checkempty

Should the returned HTML-content be checked for emptiness? If the HTML-body is empty no popup is opened. Default is FALSE

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

References

https://github.com/heigeo/leaflet.wms

Examples

library(leaflet)
library(leaflet.extras2)

leaflet() %>%
  addTiles(group = "base") %>%
  setView(9, 50, 5) %>%
  addWMS(
    baseUrl = "https://maps.dwd.de/geoserver/dwd/wms",
    layers = "dwd:BRD_1km_winddaten_10m",
    popupOptions = popupOptions(maxWidth = 600),
    checkempty = TRUE,
    options = WMSTileOptions(
      transparent = TRUE,
      format = "image/png",
      info_format = "text/html"
    )
  )