hexify: Equal-Area Hex Grids on the Snyder ISEA Icosahedron
Provides functions to build and use hexagonal discrete global grids using the Icosahedral Snyder Equal Area ('ISEA') projection (Snyder 1992 <doi:10.3138/27H7-8K88-4882-1752>) and the 'H3' hierarchical hexagonal system (Uber Technologies). Implements the 'ISEA' discrete global grid system (Sahr, White and Kimerling 2003 <doi:10.1559/152304003100011090>). Includes a fast C++ core for 'ISEA' projection and aperture quantization, an included 'H3' v4.4.1 C library for native 'H3' grid operations, and 'sf'/'terra'-compatible R wrappers for grid generation and coordinate assignment. Output is compatible with 'dggridR' for interoperability.
| Version: | 0.8.2 |
| Depends: | R (≥ 3.5) |
| Imports: | sf, Rcpp, methods, rlang |
| LinkingTo: | Rcpp |
| Suggests: | testthat (≥ 3.0.0), knitr, rmarkdown, terra, raster, ggplot2, RColorBrewer, rnaturalearth, tibble, gridExtra, leaflet |
| Published: | 2026-08-22 |
| DOI: | 10.32614/CRAN.package.hexify |
| Author: | Gilles Colling 
[aut, cre, cph],
Uber Technologies, Inc. [ctb, cph] (H3 C library, src/h3 (Apache-2.0)) |
| Maintainer: | Gilles Colling <gilles.colling051 at gmail.com> |
| BugReports: | https://github.com/gcol33/hexify/issues |
| License: | MIT + file LICENSE |
| Copyright: | see file COPYRIGHTS |
| URL: | https://gillescolling.com/hexify/ |
| NeedsCompilation: | yes |
| SystemRequirements: | C99 |
| Language: | en-US |
| Materials: | README, NEWS |
| CRAN checks: | hexify results |
Documentation:
| Reference manual: | hexify.html , hexify.pdf |
| Vignettes: |
H3 Grid Support (source, R code) Quick Start (source, R code) Mathematical Foundations (source, R code) Visualization (source, R code) Practical Workflows (source, R code) |
Downloads:
| Package source: | hexify_0.8.2.tar.gz |
| Windows binaries: | r-devel: hexify_0.6.5.zip, r-release: hexify_0.8.2.zip, r-oldrel: hexify_0.6.5.zip |
| macOS binaries: | r-release (arm64): hexify_0.8.2.tgz, r-oldrel (arm64): hexify_0.8.2.tgz, r-release (x86_64): hexify_0.8.2.tgz, r-oldrel (x86_64): hexify_0.8.2.tgz |
| Old sources: | hexify archive |
Reverse dependencies:
| Reverse imports: | pycnogrid |
Linking:
Please use the canonical form https://CRAN.R-project.org/package=hexify to link to this page.