# huiyan-fe/mapv

a library of geography visualization-地理信息可视化库

Repository: https://github.com/huiyan-fe/mapv
Canonical: https://ross.abutalabs.com/products/mapv
Homepage: http://mapv.baidu.com
Language: JavaScript
License: BSD-3-Clause
License Family: permissive
Last push: 2026-06-10T06:57:07+00:00

## Health v2 (maintenance only)
Score: 62/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 86, release rhythm 8, longevity 100
- inputs: {"age_days": 4080, "days_push": 84, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2608, forks 776 (observed 2026-08-28T04:07:04.181008+00:00)

## What it is
Mapv is an open-source JavaScript library for geographic information visualization, built on canvas. It renders large volumes of point, line, and polygon data with styles like scatter plots, heatmaps, grids, and clustering.

## Use cases
- visualize large sets of geographic points on a map
- render heatmaps from location data
- cluster thousands of map markers
- draw migration or trajectory lines on a map
- display grid-based density maps of geo data

## When to choose
- you need canvas-based rendering of massive geographic datasets in the browser
- you want built-in heatmap, grid, and clustering visualizations
- you work with Baidu Maps or similar JS map APIs

## When to avoid
- you need 3D globe or WebGL-level performance (consider deck.gl or mapbox)
- you need server-side or native mobile rendering
- you require a stable, actively evolving API (2.0 is a pre-release with unstable API)

## Facets
- artifact type: library
- maturity: maintenance
- function: data-visualization, graphics
- domain: data-visualization, web-development
- platform: browser
- tags: geospatial, canvas, heatmap, baidu-maps, geographic-data, maps, javascript

## Member repositories
- huiyan-fe/mapv (main) score 62

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:04.181008+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:20:55.446485+00:00, confidence not recorded.
  - readme: https://github.com/huiyan-fe/mapv (fetched 2026-08-28T04:07:04.181008+00:00, sha 88ea3d2a6117)
  - homepage: http://mapv.baidu.com (fetched 2026-08-29T10:04:00.447020+00:00, sha 50b2b2c10778)
  - registry_npm: https://registry.npmjs.org/mapv (fetched 2026-08-29T10:04:00.456343+00:00, sha 9a93145ea3b7)
- Data as of 2026-08-30T08:39:29.467469+00:00.