get_cloudmademap function

Get a CloudMade map.

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, now defunct. Thousands of maptypes ("styles"), including create-your-own options, are available from http://maps.cloudmade.com/editor (defunct).

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
• ...: ...

Returns

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

See Also

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

Author(s)

David Kahle david@kahle.io