Overlays on Static Maps
add alpha level to color that lacks one
Plot Levels of a Variable in a Colour-Coded Map
axis with degrees
generates a "static map" from map tiles by "stitching" them together
Transform longitude/latiude points to the Mercator projection.
download a static map from the Microsoft map tile server
geocoding utility
GetMap bbox
download a static map from the Google server
download map tiles from specified map tile servers such as openstreetm...
Query the Open Street Map server for map tiles instead of Google Maps
identify points by clicking on map
computes the centered coordinate transformation from lat/lon to map ti...
computes the coordinate transformation from lat/lon to map tile coordi...
get static Map from the Google server
computes the maximum zoom level which will contain the given lat/lon r...
simple wrapper function to plot colored polygons
computes the necessary number of tiles from a bounding box and a zoom ...
compute the bounding box of an OpenStreetmap tile
plots arrows or segments on map
easy to use wrapper function
plots on map tiles by "stitching" them together
overlays plot on background image of map tile
plots OSM map tiles
plots a single OSM tile
plots polygons on map
computes bounding box
Read a bitmap image stored in the PNG format
translates an RGB image matrix to gray scale
computes bounding box
converts spatial objects as defined in package sp to simpler PBSmappin...
plots text on map
simple utility to offset and scale XY coordinates with respect to the ...
Updates the 'usr' coordinates in the current plot.
computes the centered coordinate transformation from lat/lon to map ti...
Serves two purposes: (i) Provide a comfortable R interface to query the Google server for static maps, and (ii) Use the map as a background image to overlay plots within R. This requires proper coordinate scaling.