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RgoogleMaps (version 1.2.0.4)

Overlays on Google map tiles in R

Description

This package 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.

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Version

Install

install.packages('RgoogleMaps')

Monthly Downloads

3,122

Version

1.2.0.4

License

GPL

Maintainer

Markus Loecher

Last Published

September 4th, 2013

Functions in RgoogleMaps (1.2.0.4)

translates an RGB image matrix to gray scale

Read a bitmap image stored in the PNG format

Pennsylvania Lung Cancer

computes bounding box

LatLon2XY.centered

computes the centered coordinate transformation from lat/lon to map tile coordinates

computes the coordinate transformation from lat/lon to map tile coordinates

PlotOnStaticMap

overlays plot on background image of map tile

axis with degrees

download a static map from the Google server

Query the Open Street Map server for map tiles instead of Google Maps

computes the centered coordinate transformation from lat/lon to map tile coordinates

simple wrapper function to plot colored polygons

computes the maximum zoom level which will contain the given lat/lon range

PlotArrowsOnStaticMap

plots arrows or segments on map

Updates the 'usr' coordinates in the current plot.

identify points by clicking on map

RgoogleMaps-package

Overlays on Google map tiles in R

Upstate New York Leukemia Data

simple utility to offset and scale XY coordinates with respect to the center

get static Map from the Google server

PlotPolysOnStaticMap

plots polygons on map

converts spatial objects as defined in package sp to simpler PBSmapping type dataframes

TextOnStaticMap

plots text on map

Plot Levels of a Variable in a Colour-Coded Map

add alpha level to color that lacks one

Columbus OH spatial analysis data set