plotmap: easy to use wrapper function

In RgoogleMaps: Overlays on Static Maps

Description

note the similarity in name to PBSmapping::plotMap

This function is the workhorse of the package RgoogleMaps. It overlays plot on background image of map tile.

Usage

plotmap(lat, lon, map, zoom = NULL, API = c("google", "OSM", 


    "bing", "google2")[1], maptype = c("roadmap", "mobile", "satellite", 


    "terrain", "hybrid", "mapmaker-roadmap", "mapmaker-hybrid")[2], 


    destfile, data, alpha = 1, col = 1, apiKey = NULL, verbose = 0, 


    ...)

Arguments

lat	latitude values to be overlaid OR string to be geocoded!
lon	longitude values to be overlaid
map	optional map object
zoom	Google maps zoom level
API	choice of map tile API
maptype	defines the type of map to construct. There are several possible maptype values, including satellite, terrain, hybrid, and mobile.
destfile	File to save the map image to
data	data to look up variables in
alpha	opacity
col	plot color
apiKey	optional API key (allows for higher rate of downloads for Google); mandatory for Bing maps
verbose	level of verbosity
...	further arguments to be passed to PlotOnStaticMap

Author(s)

Markus Loecher

Examples

if (0){


  #####################Google maps#############################


  mapBG1 = plotmap("Brandenburg Gate, Berlin", zoom = 15)





  #####################bing maps#############################


  


  #for bing maps you will need your own API key, 


  #sign up at https://msdn.microsoft.com/en-us/library/ff428642.aspx


  apiKey = scan("C:/Users/loecherm/Dropbox/stuff/bingAPIkey.txt",what="")


  mapBG2 = plotmap("Brandenburg Gate, Berlin", zoom = 15, API = "bing", apiKey=apiKey)


  


  latlon <- cbind.data.frame(lat = c(38.898648,38.889112, 38.880940), 


                              lon = c(-77.037692, -77.050273, -77.03660));


  


  


  map3 = plotmap(lat = latlon$lat, lon = latlon$lon, API = "bing", apiKey=apiKey,


                 col = "purple", pch="X",cex=1.5)


  


  


  #####################OSM maps#############################


  map4 = plotmap(lat = latlon$lat, lon = latlon$lon, API = "OSM", zoom=15,


                 col = "purple", pch="X",cex=1.5)


}

RgoogleMaps documentation built on May 2, 2019, 5:03 p.m.