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fossilsim vs tmap

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

fossilsim vs tmap: at a glance

Featurefossilsimtmap
SectorAnalyticsAnalytics
Velocity score0.00.0
Sparks · 30d00
Top themesphylogenetics, simulation, trait-evolution, birth-death-modelsthematic-mapping, spatial-data, ggplot-alternative, extensibility
Last editorial update1h ago9h ago
WebsiteVisit →Visit →

What is fossilsim?

A fossil-record simulator that quietly grew a trait-evolution engine.

FossilSim is a mature R package for simulating fossil records on phylogenetic trees, and its release cadence reflects that: long gaps punctuated by a single capability addition. The last four releases span three years, with the most recent being a compatibility sync to its companion Shiny front-end rather than new functionality. The core simulation surface has been stable since 2022.

Read the full fossilsim trajectory →

What is tmap?

Two years after a from-scratch rewrite, tmap is filling in the layers v4 promised.

tmap draws thematic maps in R across static and interactive modes. The 4.0 rewrite replaced the layer syntax with explicit visual variables, scales, legends and charts, and opened the package to extensions; the 4.x line since has been steady capability fill-in. The 4.4 release adds tm_circles with fixed unit-based radii, a blend argument on every layer, and hitboxes so small objects stay clickable in view mode.

Read the full tmap trajectory →

fossilsim vs tmap: editorial side-by-side

F
fossilsim
ANALYTICS
0.0

A fossil-record simulator that quietly grew a trait-evolution engine.

◆ Current state

FossilSim is a mature R package for simulating fossil records on phylogenetic trees, and its release cadence reflects that: long gaps punctuated by a single capability addition. The last four releases span three years, with the most recent being a compatibility sync to its companion Shiny front-end rather than new functionality. The core simulation surface has been stable since 2022.

◆ Where it's heading

The arc runs from sampling mechanics toward simulating what the organisms actually were. Version 2.2.0 taught the package to handle occurrence data for occurrence birth-death models; 2.3.0 then added trait simulation under Mk, BM and OU, which is a different kind of output than fossil ages. Since then the work has been maintenance and keeping the FossilSimShiny GUI in step, suggesting the authors consider the current model set feature-complete.

◆ Prediction

The pairing of the 2.3.3 release with a FossilSimShiny version bump points to the GUI, not the library, as where the next visible work lands. The entries do not show enough activity to predict a specific new model family.

T
tmap
ANALYTICS
0.0

Two years after a from-scratch rewrite, tmap is filling in the layers v4 promised.

◆ Current state

tmap draws thematic maps in R across static and interactive modes. The 4.0 rewrite replaced the layer syntax with explicit visual variables, scales, legends and charts, and opened the package to extensions; the 4.x line since has been steady capability fill-in. The 4.4 release adds tm_circles with fixed unit-based radii, a blend argument on every layer, and hitboxes so small objects stay clickable in view mode.

◆ Where it's heading

The extension mechanism introduced in 4.0 is where the interesting work is migrating: PMTiles support arrived through a separate experimental tmap.sources package, mode cycling became configurable via tmap_mode_pool() so packages like tmap.mapgl can register themselves, and shiny dispatch methods were added specifically to let other modes integrate. The core package is increasingly a rendering contract that satellite packages plug into.

◆ Prediction

Expect more rendering backends to land as sibling packages rather than in tmap itself, with the core continuing to absorb the dispatch and mode-management plumbing they need.

Alternatives to fossilsim and tmap

Other Analytics 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 fossilsim or tmap.

See all fossilsim alternatives → · See all tmap alternatives →

Recent activity from fossilsim and tmap

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

  1. 1mo agotmapDocumentation-only patch tidying man-page titles
  2. 1mo agotmaptm_circles, layer blending and clickable small objects
  3. 1y agotmaptmap v4 rewritten from scratch with a new layer syntax
  4. 1y agotmapFinal 3.x release before the v4 rewrite
  5. 2y agofossilsimCompatibility bump for FossilSimShiny 1.1.2
  6. 4y agofossilsimBug fixes and documentation cleanup
  7. 4y agofossilsimTrait simulation arrives: Mk, BM and OU models
  8. 5y agofossilsimOccurrence handling for the occurrence birth-death model

Frequently asked questions

What is the difference between fossilsim and tmap?

They serve adjacent needs but don't currently overlap on shipped themes. fossilsim and tmap are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is fossilsim better than tmap?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. fossilsim and tmap are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to fossilsim?

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

What are the best alternatives to tmap?

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