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Comparison · DevOps

Meshes.jl vs rlang

A side-by-side editorial comparison of Meshes.jl and rlang — release velocity, themes, recent moves, and the top alternatives to consider.

Meshes.jl vs rlang: at a glance

FeatureMeshes.jlrlang
SectorDevOpsDevOps
Velocity score2.50.0
Sparks · 30d00
Top themesjulia, computational-geometry, performance, numerical-correctnesstidyverse, metaprogramming, c-api, tidyeval
Last editorial update3h ago1h ago
WebsiteVisit →Visit →

What is Meshes.jl?

Meshes.jl ships one pull request at a time, and most of them are geometry correctness

The library releases at a rate of several patch versions a week, each carrying a single merged pull request. The current run is evenly split between performance work - an optimised centroid and measure for planar polygons, further GJK tuning, a neighbour-search refactor - and correctness fixes to the same primitives, including a wrong centroid calculation and PolyArea incorrectly adding inner-ring area.

Read the full Meshes.jl trajectory →

What is rlang?

rlang moved tidyeval off R's private internals and onto official C API.

rlang is at 1.3.0, which rewrote hash() to walk objects itself rather than lean on R's serialiser — fixing stability against bytecode and shrinkable vectors, at the cost of invalidating every existing hash value. The release before it closed a multi-year effort: rlang and tidyeval are now fully backed by official C APIs of R, work the notes credit to collaboration with R core.

Read the full rlang trajectory →

Meshes.jl vs rlang: editorial side-by-side

M
Meshes.jl
DEVOPS
2.5

Meshes.jl ships one pull request at a time, and most of them are geometry correctness

◆ Current state

The library releases at a rate of several patch versions a week, each carrying a single merged pull request. The current run is evenly split between performance work - an optimised centroid and measure for planar polygons, further GJK tuning, a neighbour-search refactor - and correctness fixes to the same primitives, including a wrong centroid calculation and PolyArea incorrectly adding inner-ring area.

◆ Where it's heading

The pattern of optimising a function and then correcting its definition a release later suggests the core geometric predicates are being systematically revisited rather than extended. This is depth work on a settled API: the same handful of operations getting faster and more numerically defensible, including on non-standard number types like BigFloat.

◆ Prediction

Expect the single-PR cadence to continue through the remaining core predicates, with measure and centroid variants for further geometry types the most likely targets. Nothing in these entries points to new geometry abstractions.

R
rlang
DEVOPS
0.0

rlang moved tidyeval off R's private internals and onto official C API.

◆ Current state

rlang is at 1.3.0, which rewrote hash() to walk objects itself rather than lean on R's serialiser — fixing stability against bytecode and shrinkable vectors, at the cost of invalidating every existing hash value. The release before it closed a multi-year effort: rlang and tidyeval are now fully backed by official C APIs of R, work the notes credit to collaboration with R core.

◆ Where it's heading

The through-line across this whole window is one migration. Release after release retires something that depended on private R internals — env_browse(), env_unlock(), ns_registry_env(), the SEXP iterator now behind a compile flag — and replaces it with sanctioned API. The hash() rewrite in 1.3.0 is the same instinct applied to the serialiser: own the behaviour rather than inherit it.

◆ Prediction

With the C API migration declared complete in 1.2.0, the next releases are likely to be ordinary maintenance and type-checking additions rather than further defunct markings.

Alternatives to Meshes.jl and rlang

Other DevOps products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Meshes.jl or rlang.

See all Meshes.jl alternatives → · See all rlang alternatives →

Recent activity from Meshes.jl and rlang

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 27d agoMeshes.jlFaster centroid and measure for planar polygons
  2. 1mo agorlanghash() rewritten; all existing hash values change
  3. 1mo agoMeshes.jlFurther GJK optimisation
  4. 1mo agoMeshes.jlCentroid definitions reviewed and corrected
  5. 1mo agoMeshes.jlStackOverflow fixed for atol/rtol on BigFloat
  6. 1mo agoMeshes.jlNeighbour search refactor
  7. 1mo agoMeshes.jlpolyarea docs clarify clockwise orientation
  8. 4mo agorlangrlang and tidyeval now fully backed by R's official C API
  9. 7mo agorlangR 4.0 floor, new %&&% operator, C API progress
  10. 1y agorlangenv_unlock() and env_browse() defunct as private API disappears
  11. 1y agorlangFull backtraces reported during knitting
  12. 2y agorlangMissing C utilities and modern last_trace() hyperlinks

Frequently asked questions

What is the difference between Meshes.jl and rlang?

They serve adjacent needs but don't currently overlap on shipped themes. Meshes.jl is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Meshes.jl better than rlang?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Meshes.jl is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.

What are the best alternatives to Meshes.jl?

Top Meshes.jl alternatives in DevOps are ranked by recent ship velocity. Browse the "Meshes.jl alternatives" section above for the current picks, or visit /alternatives/meshes-jl for the full list with editorial commentary on each.

What are the best alternatives to rlang?

Top rlang alternatives in DevOps are ranked by recent ship velocity. Browse the "rlang alternatives" section above for the current picks, or visit /alternatives/rlang for the full list with editorial commentary on each.