# jasonlong/geo_pattern

Create beautiful generative geometric background images from a string.

Repository: https://github.com/jasonlong/geo_pattern
Canonical: https://ross.abutalabs.com/products/geo_pattern
Homepage: http://jasonlong.github.io/geo_pattern/
Language: Ruby
License: MIT
License Family: permissive
Topics: procedural, generative, visualization, ruby
Last push: 2025-04-22T12:39:46+00:00

## Health v2 (maintenance only)
Score: 30/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 17, release rhythm 8, longevity 100
- inputs: {"age_days": 4601, "days_push": 498, "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 1272, forks 86 (observed 2026-08-28T04:04:12.112937+00:00)

## What it is
A Ruby gem that deterministically generates tiling SVG geometric background patterns from an input string, using a SHA hash to select one of 16 pattern types and derive colors. The output can be embedded as an SVG string, Base64 data URI, or CSS background-image.

## Use cases
- generate a unique background image from a string
- create generative geometric SVG patterns in ruby
- make deterministic identicon-style tile backgrounds
- add decorative patterned backgrounds to a website
- generate consistent header art for blog posts or guides
- seeded procedural pattern generation for avatars

## When to choose
- you are working in Ruby and want string-seeded, reproducible SVG background patterns
- you need lightweight vector output that stays crisp on retina displays
- you want the same style of generative patterns used on GitHub Guides and Explore

## When to avoid
- you need active development or new features, since the project is largely unmaintained
- you are outside the Ruby ecosystem, where the maintained JavaScript port may be a better fit
- you need raster (PNG/JPEG) output or pattern styles beyond the 16 built-in geometric generators

## Facets
- artifact type: library
- maturity: maintenance
- function: image-processing, graphics
- domain: graphics, web-development, web-design
- platform: ruby
- tags: generative-art, svg-patterns, tiling-patterns, deterministic-generation, identicon, background-images, procedural-generation

## Member repositories
- jasonlong/geo_pattern (main) score 30

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:12.112937+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 2026-08-30T05:03:17.432163+00:00, confidence not recorded.
  - readme: https://github.com/jasonlong/geo_pattern (fetched 2026-08-28T04:04:12.112937+00:00, sha f48034557108)
  - homepage: http://jasonlong.github.io/geo_pattern/ (fetched 2026-08-29T12:14:31.385038+00:00, sha 40e77526ccd7)
- Data as of 2026-08-30T08:39:29.467469+00:00.