# veltman/flubber

Tools for smoother shape animations.

Repository: https://github.com/veltman/flubber
Canonical: https://ross.abutalabs.com/products/flubber
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2022-11-08T03:34:37+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3372, "days_push": 1394, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6930, forks 168 (observed 2026-08-28T04:09:51.478360+00:00)

## What it is
A JavaScript library providing best-guess methods for smoothly interpolating between arbitrary 2-D shapes, such as SVG path strings or point rings. It returns interpolator functions usable with D3 transitions or requestAnimationFrame for shape morphing animations.

## Use cases
- morph one svg path into another smoothly
- animate between shapes in a d3 visualization
- interpolate between polygons with different numbers of points
- create shape tweening animations in the browser
- transition map or chart shapes without weird jumps

## When to choose
- you need to animate between arbitrary SVG shapes or polygons that don't correspond point-for-point
- you use D3 and want a drop-in attrTween interpolator for shape morphing
- you want a small, focused library rather than a full animation framework

## When to avoid
- you need 3-D shape animation or WebGL morphing
- you only animate shapes that already correspond exactly, where plain transitions suffice
- you need active maintenance or frequent updates, as the project's latest release was in 2022

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, graphics, ui-components
- domain: web-development, frontend, data-visualization, graphics
- platform: browser
- tags: svg, shape-morphing, interpolation, d3, tweening, canvas, nodejs, javascript

## Member repositories
- veltman/flubber (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:51.478360+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 2026-08-29T17:41:16.127137+00:00, confidence not recorded.
  - readme: https://github.com/veltman/flubber (fetched 2026-08-28T04:09:51.478360+00:00, sha a509d2bdb19f)
  - registry_npm: https://registry.npmjs.org/flubber (fetched 2026-08-29T08:37:20.394731+00:00, sha 61a45bed76e9)
- Data as of 2026-08-30T08:39:29.467469+00:00.