concaveman

1.2.0

A Very Fast 2D Concave Hull Algorithm

15packages depend

80.8Kdownloads / year

100.0%test coverage

13/13checks pass

Overview

About

Maintained by Joël GombinFirst published 2017-07-263 releasesCRAN page ↗GitHub ↗

The concaveman function ports the 'concaveman' (https://github.com/mapbox/concaveman) library from 'mapbox'. It computes the concave polygon(s) for one or several set of points.

Install

R (CRAN)pak (dev)Ubuntu (r2u)

install.packages("concaveman", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("joelgombin/concaveman")

Development version from joelgombin/concaveman. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-concaveman

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

Health

CRAN checks

13OK

Slowest check: 54 s · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.36

100.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

80.8K

CRAN downloads in the past year

Rank #1,584 · ~221/day · ~6.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

4.4K30 days

17.8K90 days

80.8K1 year

Compare downloads with other packages →

Also on534 r2u3.6K conda_forge

Repository

GitHub ↗ joelgombin/concaveman

75Stars

9Forks

7Open issues

1Open PRs

1Releases

102Commits

2Contributors

rconcave-hullspatial

102 commits · Last activity 2025-10-06

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/joelgombin/concaveman on 2026-07-19.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Docs source (1)

README.Rmd

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (3)

V8 sf jsonlite

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

15direct

0indirect

BLA BoneDensityMapping GoodFibes bate doolkit envi habtools pacu spatialGE BiodiversityR cubble paar plotthis spNetwork textplot

Code & Tests

People & History

People (4)

Maintainer (1)

Joël Gombin

Maintainer, Author

Authors (3)

Maintainer, Author

Author

Author

Package Timeline

3 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.2.0Latest
2025-10-06 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.1.0
2020-05-11 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
1.0.0
2017-07-26
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2017-07-26
Total releases: 3 / 9 yrs
License: GPL-3 OSI
Minimum R: ≥ 2.10
Bundled data: 12 KB / 1 file
Download size: 122 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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