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maplegend vs nanonext

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

maplegend vs nanonext: at a glance

Featuremaplegendnanonext
SectorAnalyticsAnalytics
Velocity score0.02.5
Sparks · 30d00
Top themescartography, legends, base-graphics, spatialasync-messaging, nng, http-server, memory-safety
Last editorial update52m ago3h ago
WebsiteVisit →Visit →

What is maplegend?

The legend engine mapsf spun out, now covering legend types the parent map package can draw.

maplegend draws the legends for base-R thematic maps, extracted from mapsf so both packages could evolve the legend vocabulary independently. It has been catching up to the map types it has to serve: 0.6.0 added choro_point, choro_line, and choro_symb for choropleth legends rendered on circles, lines, and symbols, following the histogram legend type in 0.4.0. Considerable effort has gone into behaving correctly when the plot aspect ratio is not 1, which required refactoring most of the package in 0.4.0 and still produced a proportional-symbol segment sizing fix in 0.6.3.

Read the full maplegend trajectory →

What is nanonext?

nanonext keeps shrinking its build requirements while adding messaging primitives.

The R binding to NNG ships roughly monthly. Since February the package added an HTTP server that can run synchronously or through the later event loop, a zero-copy device forwarder for building brokers and proxies, and support for pthread-enabled WebAssembly targets. Send operations now move the buffer straight into the NNG message, halving peak memory on serialized sends.

Read the full nanonext trajectory →

maplegend vs nanonext: editorial side-by-side

M
maplegend
ANALYTICS
0.0

The legend engine mapsf spun out, now covering legend types the parent map package can draw.

◆ Current state

maplegend draws the legends for base-R thematic maps, extracted from mapsf so both packages could evolve the legend vocabulary independently. It has been catching up to the map types it has to serve: 0.6.0 added choro_point, choro_line, and choro_symb for choropleth legends rendered on circles, lines, and symbols, following the histogram legend type in 0.4.0. Considerable effort has gone into behaving correctly when the plot aspect ratio is not 1, which required refactoring most of the package in 0.4.0 and still produced a proportional-symbol segment sizing fix in 0.6.3.

◆ Where it's heading

This is a support library whose backlog is defined by its caller. Every legend type mapsf can produce needs a matching legend renderer, and the release notes are dominated by spacing, offset, and border details — box_cex for symbol spacing, NA box placement in horizontal choropleth legends, text overflow when no_data is set. The shared vocabulary with mapsf is being maintained deliberately, with val_rnd, val_big, and val_dec propagating through legend types release by release. Version numbering is not monotonic in this feed, with 0.4.0 published seconds after 0.5.0.

◆ Prediction

Expect the remaining combined map types to acquire matching legends and the val_* formatting arguments to reach the types that still lack them.

N
nanonext
ANALYTICS
2.5

nanonext keeps shrinking its build requirements while adding messaging primitives.

◆ Current state

The R binding to NNG ships roughly monthly. Since February the package added an HTTP server that can run synchronously or through the later event loop, a zero-copy device forwarder for building brokers and proxies, and support for pthread-enabled WebAssembly targets. Send operations now move the buffer straight into the NNG message, halving peak memory on serialized sends.

◆ Where it's heading

Two directions run in parallel. One is making the package installable anywhere — the build-time cmake dependency is gone, so compiling bundled NNG and Mbed TLS needs only a C compiler, and WebAssembly targets are supported. The other is raising the ceiling on what can be built on top: device_aio() for message forwarding, an HTTP and WebSocket server with a content map, and stream buffer control. Bug fixes in recent releases concentrate on memory safety in the bundled C sources.

◆ Prediction

Given the pace and the tight coupling declared in each release, expect the next version to track a mirai requirement and continue hardening the HTTP server paths that the last two releases have been leaking memory in.

Alternatives to maplegend and nanonext

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 maplegend or nanonext.

See all maplegend alternatives → · See all nanonext alternatives →

Recent activity from maplegend and nanonext

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

  1. 10d agonanonextMemory leaks and a TLS use-after-free fixed in the HTTP server
  2. 1mo agonanonextEvent-loop integration for HTTP and WebSocket callbacks
  3. 1mo agonanonextZero-copy message forwarding, and cmake dropped from the build
  4. 2mo agonanonextBuilds against pthread-enabled WebAssembly targets
  5. 2mo agomaplegendContinuous legend formatting and aspect-ratio segment fix
  6. 3mo agonanonextSerialized sends drop a copy and halve peak memory
  7. 4mo agomaplegendChoropleth legends on points, lines and symbols
  8. 4mo agonanonextBlocking HTTP server mode and stream buffer sizing
  9. 7mo agomaplegendPackage-wide refactor for non-unity aspect ratios, histogram legends
  10. 7mo agomaplegendSingle-modality legends allowed for typo, symb and prop_line
  11. 1y agomaplegendAlpha transparency and redraw on device resize
  12. 1y agomaplegendOffset and symbol sizing aligned with mapsf

Frequently asked questions

What is the difference between maplegend and nanonext?

They serve adjacent needs but don't currently overlap on shipped themes. nanonext 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 maplegend better than nanonext?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. nanonext 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 Analytics products to evaluate alongside.

What are the best alternatives to maplegend?

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

What are the best alternatives to nanonext?

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