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alphashape3d

Implementation of the 3D Alpha-Shape for the Reconstruction of 3D Sets from a Point Cloud

v1.3.3 · Oct 10, 2025 · GPL-2

Description

Implementation in R of the alpha-shape of a finite set of points in the three-dimensional space. The alpha-shape generalizes the convex hull and allows to recover the shape of non-convex and even non-connected sets in 3D, given a random sample of points taken into it. Besides the computation of the alpha-shape, this package provides users with functions to compute the volume of the alpha-shape, identify the connected components and facilitate the three-dimensional graphical visualization of the estimated set.

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CRAN Check Status

14 OK
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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (10)

suggests

Dependency Network

Dependencies Reverse dependencies geometry rgl RANN Arothron LOMAR Toothnroll ashapesampler rTLS tReeTraits nat pavo polykde rgl alphashape3d

Version History

new 1.3.3 Mar 10, 2026
updated 1.3.3 ← 1.3.2 diff Oct 9, 2025
updated 1.3.2 ← 1.3.1 diff Jan 23, 2023
updated 1.3.1 ← 1.3 diff Dec 8, 2020
updated 1.3 ← 1.2 diff Dec 20, 2017
updated 1.2 ← 1.1 diff Feb 8, 2016
updated 1.1 ← 1.0-4 diff May 22, 2014
updated 1.0-4 ← 1.0-3 diff Jan 10, 2014
updated 1.0-3 ← 1.0-2 diff Jun 4, 2013
updated 1.0-2 ← 1.0-1 diff Apr 21, 2013
updated 1.0-1 ← 1.0 diff Jul 25, 2012
updated 1.0 ← 0.2 diff Jan 13, 2012
updated 0.2 ← 0.1-1 diff Oct 16, 2011
new 0.1 Oct 4, 2011
updated 0.1-1 ← 0.1 diff Oct 4, 2011