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ahull3D: Fast 3D Alpha Hull with Label Propagation

Fast 3D alpha shape (alpha hull) computation with label propagation from input points to hull vertices and faces. Uses 'CGAL' for robust geometric computations. Optimized for Light Detection and Ranging ('LiDAR') processing and tree segmentation workflows. The implementation follows the alpha shape algorithm described in Edelsbrunner et al. (1983) <doi:10.1007/BF02579193>.

Version: 1.0.0
Depends: R (≥ 3.5.0)
Imports: Rcpp (≥ 1.0.8), rgl (≥ 0.100.0), Rvcg (≥ 0.18.0)
LinkingTo: Rcpp, RcppEigen, RcppCGAL
Suggests: RANN (≥ 2.6.0), testthat (≥ 3.0.0)
Published: 2026-07-16
DOI: 10.32614/CRAN.package.ahull3D (may not be active yet)
Author: Gergo Dioszegi ORCID iD [aut, cre, cph]
Maintainer: Gergo Dioszegi <dijogergo at gmail.com>
BugReports: https://github.com/DijoG/ahull3D/issues
License: MIT + file LICENSE
URL: https://github.com/DijoG/ahull3D
NeedsCompilation: yes
SystemRequirements: C++17
Materials: README
CRAN checks: ahull3D results

Documentation:

Reference manual: ahull3D.html , ahull3D.pdf

Downloads:

Package source: ahull3D_1.0.0.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): ahull3D_1.0.0.tgz, r-oldrel (arm64): ahull3D_1.0.0.tgz, r-release (x86_64): ahull3D_1.0.0.tgz, r-oldrel (x86_64): ahull3D_1.0.0.tgz

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.