R Observatory: Metrics for fmesher version 0.8.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

fmesher

0.8.0Package record

Triangle Meshes and Related Geometry Tools

17packages dependsuggested by 8

129.6Kdownloads / year

45.3%test coverage

13/13flavors OK

Overview

About

Maintained by Finn LindgrenCRAN page ↗GitHub ↗Website ↗Issues ↗

Generate planar and spherical triangle meshes, compute finite element calculations for 1-, 2-, and 3-dimensional flat and curved manifolds with associated basis function spaces, methods for lines and polygons, and transparent handling of coordinate reference systems and coordinate transformation, including 'sf' and 'sp' geometries. The core 'fmesher' library code was originally part of the 'INLA' package, and implements parts of "Triangulations and Applications" by Hjelle and Daehlen (2006) doi:10.1007/3-540-33261-8.

Changes in 0.8.0

Improved features

Make cc the canonical name for the most suitable 0th order mass matrix for all fm_fem() implementations, so that higher order basis functions can be used without "mass lumping", and the callers, such as INLA::inla.spde2.pcmatern() don't need to handle the logic themselves. (0.7.0.9001)
Speed up polygon integration by precomputing and storing vt vertex-to-triangle information in multiple formats (0.7.0.9002)
Speed up multi-polygon integration by moving work out of the blockwise loop. (0.7.0.9003)
Add multi argument with default FALSE to fm_diameter() for multi-domain spaces (fm_tensor and fm_collect) so that only user code that needs to be aware of per-domain diameters need to handle the multi-domain case. (0.7.0.9004)

Show all changes in 0.8.0Hide the rest of the changes in 0.8.0

Add fm_int<fm_collect> method of integration on fm_collect spaces (0.7.0.9005)

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("fmesher", 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("inlabru-org/fmesher")

Development version from inlabru-org/fmesher. 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-fmesher

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-fmesher

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-fmesher

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 10.2 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
WARNING12 OK, 1 WARNING2026-06-07

Show 6 earlier changesHide 6 earlier changes

OK13 OK2026-05-02
NOTE12 OK, 2 NOTE2026-04-22
ERROR11 OK, 2 NOTE, 1 ERROR2026-04-18
NOTE11 OK, 3 NOTE2026-03-29
ERROR11 OK, 2 NOTE, 1 ERROR2026-03-25
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.8.0

READMEYes · 323 wordsVignettesYes · 6 · dynamicNEWSYes · 100% structured · mentions 0.8.0Citation fileNoWebsiteYes · pkgdown

The repository also keeps web-only articles.

Help pages: 108 (33 internal)includes a package overview page
Examples that run: 98%102 run in a plain check (4 of them under a condition) · 2 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 95%
Return-value docs: 100%
Help pages citing references: 2%

Vignettes (6)

Articles list HTML
Basic fmesher use HTML
Converting legacy INLA mesh code to fmesher HTML
Custom mesh classes HTML
Spatially varying mesh quality HTML
The fmesher C++ library HTML

How these are measured

Downloads

129.6K

CRAN downloads in the past year

Rank #1,164 · ~355/day · ~10.8K/mo

Releases R versions

Daily download trend is not available in this view yet.

11K30 days

29.6K90 days

129.6K1 year

Compare downloads with other packages →

Also on1.8K r2u4 autocran6.3K conda_forge74 c2d4u

How downloads are counted

Repository

inlabru-org/fmesher ↗Organization: inlabru-org

22Stars

3Forks

5Open issues

0Open PRs

14Releases

950Commits

4Commit identities

License file reads as MPL-2.0 · 950 commits · Last activity 2026-09-29 · 0% stars, 30d · Default branch at 0.8.0.9004, ahead of CRAN 0.8.0 (checked 2026-10-21) · Discussions: 2 posts

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 14
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-08-30 · 182026-08-11 · 22

How these are measured

PracticesBeta

16 development-tooling and community-health practices detected across 7 families in the upstream repository

Checks run against github.com/inlabru-org/fmesher on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-09-29 · The repository has a site deploy workflow

pkgdown site last built 2026-06-23

Coverage (1)

Coverage reporting (Codecov)

Reproducibility and dev environment (1)

data-raw/

Show all practicesHide 3 practices

CRAN release process (1)

cran-comments.md

Automation and maintenance (2)

Dependabotpre-commit

Lint, format, editor (5)

lintrLint workflowjarlAirRStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

19 external dependencies (excludes base and recommended)

Installing fmesher adds 26 packages (19 with compiled code, 26 MB of source tarballs). Heaviest: sf 9.3 MB, sp 4.3 MB, s2 2.8 MB.

Depends (2)

R >= 4.1.0methods

Imports (13)

dplyrgraphicsgrDeviceslifecycleMatrixRcpp rlang sf splancsstatstibbleutilswithr

LinkingTo (1)

Rcpp

Suggests (10)

geometry ggplot2 knitr patchwork testthat terra tidyterra rgl rmarkdown sp

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

17direct

5indirect

Imports 17

Suggested by 8

Show all 25 packagesHide all 25 packages

Depends, Imports or LinkingTo, most downloaded first

sdmTMB inlabru INLAspacetime tinyVAST FRK rSPDE stelfi excursions ngme2 disaggregation intSDM rts2 mapi PointedSDMs GeoAdjust DAST clustTMB

Suggests, most downloaded first

spaMM SUMMER glmmrBase tulpaMesh tulpa drmTMB INLAjoint MetricGraph

How these are counted

Code & Tests

Datasets

People & History

People (4)

Finn Lindgren

Finn Lindgren wrote the main code

Seaton Andy

Contributor

Andy Seaton constributed features to the sf support

Fabian E. Bachl

Contributor

Fabian Bachl co-developed precursors of fm_pixels and fm_split_lines in inlabru

Suen Man Ho

Contributor

Man Ho Suen contributed features and code structure design for the integration methods

Releases (14)

Pick two releases to compare their code metrics.

0.8.0Latest
record
2026-06-23 · current release · diff ↗ ·
removed 1 export
fm_sp2segment
R
R 4.6.0 released · 2026-04-24
0.7.0
record
2026-02-19 · diff ↗
0.6.1
record
2025-12-12 · diff ↗ ·
removed 5 exports
fm_CRS_as_list, fm_CRSargs, fm_CRSargs_as_list, fm_list_as_CRS, fm_spTransform

added 6 exports
fm_subset, fm_zm, fm_zm_input, fm_zm_target, fmesher_spherical_harmonics, new_fm_int
0.5.0
record
2025-07-07 · diff ↗ ·
added 2 exports
fm_components, fm_nonconvex_hull_fm
0.4.0
record
2025-06-12 · diff ↗ ·
removed 5 exports
fm_as_sp_crs, fm_crs_get_wkt, fm_has_PROJ6, fm_identical_CRS, fm_sp_get_crs

added 6 exports
fm_as_collect, fm_as_collect_list, fm_collect, fm_hexagon_lattice, fm_mesh_components, fm_sizes
R
R 4.5.0 released · 2025-04-11
0.3.0
record
2025-03-18 · diff ↗ ·
removed 4 exports
fm_as_inla_mesh, fm_as_inla_mesh_segment, fm_evaluator_mesh_1d, fm_evaluator_mesh_2d

added 14 exports
fm_as_bbox_list, fm_as_lattice_Nd, fm_as_lattice_Nd_list, fm_as_mesh_3d, fm_as_mesh_3d_list, fm_assess, fm_bary_loc, fm_bary_simplex, fm_delaunay_3d, fm_lattice_Nd, fm_mesh_3d, fm_qinv, fmesher_bary3d, fmesher_mesh3d
0.2.0
record
2024-11-06 · diff ↗ ·
removed 8 exports
old_globeproj, old_graticule, old_limits, old_outline, old_project, old_tissot, plot_PolySet, plot_globeproj

added 7 exports
fm_basis_mesh_1d, fm_basis_mesh_2d, fm_crs_graticule, fm_crs_plot, fm_crs_tissot, fm_manifold_get, fmexample_sp
0.1.7
record
2024-07-01 · diff ↗ ·
removed 1 export
fmesher_subdivide

added 1 export
fm_subdivide
0.1.6
record
2024-06-14 · diff ↗ ·
added 1 export
fmesher_subdivide
R
R 4.4.0 released · 2024-04-24
0.1.5
record
2023-12-20 · diff ↗
0.1.4
record
2023-10-29 · diff ↗
0.1.3
record
2023-10-18 · diff ↗
0.1.2
record
2023-08-25 · diff ↗

Show 2 earlier eventsHide 2 earlier events

0.1.1
record
2023-08-18
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2023-08-18
Total releases: 14 / 3 yrs
License: MPL-2.0 OSI
Copyright: 2010-2026 Finn Lindgren, except src/predicates.cc by Jonathan Richard Shewchuk, 1996
Minimum R: ≥ 4.1.0
Bundled data: 19 KB / 2 files
Download size: 1.4 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("fmesher")

Format

Lindgren, F., Andy, S., Bachl, F. E., & Man Ho, S. (2026). fmesher: Triangle Meshes and Related Geometry Tools (Version 0.8.0) [Computer software]. https://doi.org/10.32614/CRAN.package.fmesher

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for fmesher version 0.8.0 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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