get_cloudmademap: Get a CloudMade map.

In fresques/ggmap: Spatial Visualization with ggplot2

Description

get_cloudmademap accesses a tile server for Stamen Maps and downloads/stitches map tiles/formats a map image. This function requires an api key which can be obtained for free from http://cloudmade.com/user/show (defunct?). Thousands of maptypes ("styles"), including create-your-own options, are available from http://maps.cloudmade.com/editor (defunct).

Usage

get_cloudmademap(bbox = c(left = -95.80204, bottom = 29.38048, right =
  -94.92313, top = 30.14344), zoom = 10, api_key, maptype = 1,
  highres = TRUE, crop = TRUE, messaging = FALSE, urlonly = FALSE,
  filename = NULL, color = c("color", "bw"), ...)

Arguments

bbox	a bounding box in the format c(lowerleftlon, lowerleftlat, upperrightlon, upperrightlat).
zoom	a zoom level
api_key	character string containing cloud made api key, see details
maptype	an integer of what cloud made calls style, see details
highres	double resolution
crop	crop raw map tiles to specified bounding box
messaging	turn messaging on/off
urlonly	return url only
filename	destination file for download (file extension added according to format). Default NULL means a random tempfile.
color	color or black-and-white
...	...

Value

a ggmap object (a classed raster object with a bounding box attribute)

Author(s)

David Kahle [e-mail]

See Also

http://maps.cloudmade.com/ (defunct), ggmap

Examples

## Not run:  # in what follows, enter your own api key

api_key <- '<your api key here>'
api_key <- 'b23b0358e87c4ff99f81029eda25c903'

map <- get_cloudmademap(api_key = api_key)
ggmap(map)

map <- get_cloudmademap(maptype = 997, api_key = api_key)
ggmap(map)

## End(Not run)

fresques/ggmap documentation built on May 28, 2019, 8:40 p.m.