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RgoogleMaps (version 1.4.5.3)

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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Install

install.packages('RgoogleMaps')

Monthly Downloads

4,664

Version

1.4.5.3

License

GPL

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Repository

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

Maintainer

Last Published

February 12th, 2020

Functions in RgoogleMaps (1.4.5.3)

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

PlotPolysOnStaticMap

plots polygons on map

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

PlotArrowsOnStaticMap

plots arrows or segments on map

easy to use wrapper function

LatLon2XY.centered

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

geosphere_mercator

Transform longitude/latiude points to the Mercator projection.

plots a single OSM tile

get static Map from the Google server

Plot Levels of a Variable in a Colour-Coded Map

translates an RGB image matrix to gray scale

Columbus OH spatial analysis data set

plots on map tiles by "stitching" them together

simple wrapper function to plot colored polygons

compute the bounding box of an OpenStreetmap tile

axis with degrees

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

San Francisco crime data

Read a bitmap image stored in the PNG format

geocoding utility

PlotOnStaticMap

overlays plot on background image of map tile

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

Create a bubble plot of spatial data on Google Maps

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

computes bounding box

Upstate New York Leukemia Data

TextOnStaticMap

plots text on map

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

Updates the 'usr' coordinates in the current plot.

Pennsylvania Lung Cancer

plots OSM map tiles

download a static map from the Google server

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

DF2SpatialPointsDataFrame

change data.frame to SpatialPointsDataFrame

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

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