Description Usage Arguments Author(s) Examples
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.
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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 |
Markus Loecher
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#####################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)
}
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