hexify: Equal-Area Hex Grids on the 'Snyder' 'ISEA' 'Icosahedron'

Provides functions to build and use equal-area hexagonal discrete global grids using the 'Snyder' 'ISEA' projection ('Snyder' 1992 <doi:10.3138/27H7-8K88-4882-1752>). Implements the 'ISEA' discrete global grid system ('Sahr', 'White' and 'Kimerling' 2003 <doi:10.1559/152304003100011090>). Includes a fast 'C++' core for projection and aperture quantization, and 'sf'/'terra'-compatible R wrappers for grid generation and coordinate assignment. Output is compatible with 'dggridR' for interoperability.

Version: 0.3.3
Depends: R (≥ 3.5)
Imports: sf, Rcpp, methods, rlang
LinkingTo: Rcpp
Suggests: testthat (≥ 3.0.0), lifecycle, knitr, rmarkdown, terra, raster, ggplot2, RColorBrewer, rnaturalearth, tibble, gridExtra
Published: 2026-01-20
DOI: 10.32614/CRAN.package.hexify (may not be active yet)
Author: Gilles Colling ORCID iD [aut, cre, cph]
Maintainer: Gilles Colling <gilles.colling051 at gmail.com>
BugReports: https://github.com/gcol33/hexify/issues
License: MIT + file LICENSE
URL: https://gillescolling.com/hexify/
NeedsCompilation: yes
Language: en-US
Materials: README, NEWS
CRAN checks: hexify results [issues need fixing before 2026-02-03]

Documentation:

Reference manual: hexify.html , hexify.pdf
Vignettes: Quick Start (source, R code)
Visualization (source, R code)
Practical Workflows (source, R code)

Downloads:

Package source: hexify_0.3.3.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): hexify_0.3.3.tgz, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available

Linking:

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