Tools for working with Gustavo Niemeyer's geohash coordinate system, including API for interacting with other common R GIS libraries.

The functionality provided by this package is an expansion of the code 
    of the 'statebins' package, created by B. Rudis (2022), <doi:10.32614/CRAN.package.statebins>. It allows for the creation of square choropleths 
    for the entire world, provided an appropriate specified grid is supplied.

Classes for 'GeoJSON' to make working with 'GeoJSON' easier.
    Includes S3 classes for 'GeoJSON' classes with brief summary output,
    and a few methods such as extracting and adding bounding boxes,
    properties, and coordinate reference systems; working with 
    newline delimited 'GeoJSON'; and serializing to/from 'Geobuf' binary 'GeoJSON' 
    format.

Convert data to 'GeoJSON' or 'TopoJSON' from various R
    classes, including vectors, lists, data frames, shape files, and
    spatial classes.  'geojsonio' does not aim to replace packages like
    'sp', 'rgdal', 'rgeos', but rather aims to be a high level client to
    simplify conversions of data from and to 'GeoJSON' and 'TopoJSON'.

Includes functions for processing GeoJson objects <https://en.wikipedia.org/wiki/GeoJSON> relying on 'RFC 7946' <https://datatracker.ietf.org/doc/html/rfc7946>. The geojson encoding is based on 'json11', a tiny JSON library for 'C++11' <https://github.com/dropbox/json11>. Furthermore, the source code is exported in R through the 'Rcpp' and 'RcppArmadillo' packages.

Converts Between GeoJSON and simple feature objects.

A compilation of tools to complete common tasks for studying gerrymandering. 
    This focuses on the geographic tool side of common problems, such as linking 
    different levels of spatial units or estimating how to break up units. Functions 
    exist for creating redistricting-focused data for the US.

Set of routines for making map projections (forward and inverse), topographic maps, perspective plots, geological maps, geological map symbols, geological databases, interactive plotting and selection of focus regions.