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RgoogleMaps (version 1.5.1)

Overlays on Static Maps

Description

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

4,484

Version

1.5.1

License

GPL

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Repository

https://github.com/markusloecher/rgooglemaps/blob/master/rgooglemaps/www/QuickTutorial.html

Maintainer

Last Published

November 6th, 2023

Functions in RgoogleMaps (1.5.1)

Upstate New York Leukemia Data

computes bounding box

computes bounding box

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

TextOnStaticMap

plots text on map

geocoding utility

San Francisco crime data

generates a "static map" from map tiles by "stitching" them together

geosphere_mercator

Transform longitude/latiude points to the Mercator projection.

Columbus OH spatial analysis data set

axis with degrees

Updates the 'usr' coordinates in the current plot.

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

computes the necessary number of tiles from a bounding box and a zoom level

plots a single OSM tile

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

easy to use wrapper function

compute the bounding box of an OpenStreetmap tile

simple wrapper function to plot colored polygons

plots OSM map tiles

Pennsylvania Lung Cancer

download a static map from the Google server

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

add alpha level to color that lacks one

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

identify points by clicking on map

download a static map from the Microsoft map tile server

Plot Levels of a Variable in a Colour-Coded Map

LatLon2XY.centered

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

download map tiles from specified map tile servers such as openstreetmap or Google

get static Map from the Google server

PlotOnStaticMap

overlays plot on background image of map tile

PlotArrowsOnStaticMap

plots arrows or segments on map

Read a bitmap image stored in the PNG format

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

translates an RGB image matrix to gray scale

plots on map tiles by "stitching" them together

PlotPolysOnStaticMap

plots polygons on map