WMSClient: WMSClient

WMSClientR Documentation

WMSClient

Description

WMSClient

WMSClient

Format

R6Class object.

Value

Object of R6Class with methods for interfacing an OGC Web Map Service.

Super classes

ows4R::OGCAbstractObject -> ows4R::OWSClient -> WMSClient

Methods

Public methods

Inherited methods

Method new()

This method is used to instantiate a WMSClient with the url of the OGC service. Authentication is supported using basic auth (using user/pwd arguments), bearer token (using token argument), or custom (using headers argument). By default, the logger argument will be set to NULL (no logger). This argument accepts two possible values: INFO: to print only ows4R logs, DEBUG: to print more verbose logs

Usage
WMSClient$new(
  url,
  serviceVersion = NULL,
  user = NULL,
  pwd = NULL,
  token = NULL,
  headers = c(),
  config = httr::config(),
  cas_url = NULL,
  logger = NULL
)
Arguments
url

url

serviceVersion

WFS service version

user

user

pwd

password

token

token

headers

headers

config

config

cas_url

Central Authentication Service (CAS) URL

logger

logger


Method getCapabilities()

Get WMS capabilities

Usage
WMSClient$getCapabilities()
Returns

an object of class WMSCapabilities


Method reloadCapabilities()

Reloads WFS capabilities

Usage
WMSClient$reloadCapabilities()

Method getLayers()

List the layers available. If pretty is TRUE, the output will be an object of class data.frame

Usage
WMSClient$getLayers(pretty = FALSE)
Arguments
pretty

pretty

Returns

a list of WMSLayer available, or a data.frame


Method getMap()

Get map. NOT YET IMPLEMENTED

Usage
WMSClient$getMap()

Method getFeatureInfo()

Get feature info

Usage
WMSClient$getFeatureInfo(
  layer,
  srs = NULL,
  styles = NULL,
  feature_count = 1,
  x,
  y,
  width,
  height,
  bbox,
  info_format = "application/vnd.ogc.gml",
  ...
)
Arguments
layer

layer name

srs

srs

styles

styles

feature_count

feature count. Default is 1

x

x

y

y

width

width

height

height

bbox

bbox

info_format

info format. Default is "application/vnd.ogc.gml"

...

any other parameter to pass to a WMSGetFeatureInfo request

Returns

an object of class sf given the feature(s)


Method getLegendGraphic()

Get legend graphic. NOT YET IMPLEMENTED

Usage
WMSClient$getLegendGraphic()

Method clone()

The objects of this class are cloneable with this method.

Usage
WMSClient$clone(deep = FALSE)
Arguments
deep

Whether to make a deep clone.

Author(s)

Emmanuel Blondel <emmanuel.blondel1@gmail.com>

Examples

## Not run: 
   #example based on a WMS endpoint responding at http://localhost:8080/geoserver/wms
   wms <- WMSClient$new("http://localhost:8080/geoserver/wms", serviceVersion = "1.1.1")
   
   #get capabilities
   caps <- wms$getCapabilities()
   
   #get feature info
   
   #Advanced examples at https://github.com/eblondel/ows4R/wiki#wms

## End(Not run)


ows4R documentation built on June 26, 2024, 5:09 p.m.