# locationtech/geotrellis

GeoTrellis is a geographic data processing engine for high performance applications.

Repository: https://github.com/locationtech/geotrellis
Canonical: https://ross.abutalabs.com/products/geotrellis
Homepage: http://geotrellis.io
Language: Scala
License: NOASSERTION
License Family: other
Last push: 2026-08-11T09:43:55+00:00

## Health v2 (maintenance only)
Score: 84/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 57, longevity 100
- inputs: {"age_days": 5367, "days_push": 22, "days_rel": 72, "gap_med": 425, "n_releases_24m": 2}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1372, forks 360 (observed 2026-08-28T04:04:32.253961+00:00)

## What it is
GeoTrellis is a Scala library and framework for high-performance reading, writing, and processing of geospatial raster and vector data. It includes Apache Spark integration and MapAlgebra operations for distributed geospatial computation.

## Use cases
- process satellite imagery at scale
- run map algebra operations on rasters
- read and write geospatial raster and vector data
- distributed raster processing with Spark
- build tile-serving backends for web maps
- perform terrain analysis like slope and aspect calculation

## When to choose
- you need high-performance raster processing on the JVM
- you want to scale geospatial computation across a Spark cluster
- you're building Scala applications that work with geospatial data
- you need MapAlgebra-style operations on large raster datasets

## When to avoid
- you need a simple Python GIS scripting workflow
- you only need lightweight vector operations without raster processing
- your team doesn't work on the JVM and can't adopt Scala
- you need a turnkey desktop GIS application

## Facets
- artifact type: library
- maturity: stable
- function: geospatial, data-science, etl, streaming
- domain: big-data
- platform: jvm, cross-platform
- tags: raster-processing, map-algebra, apache-spark, vector-data, distributed-processing, geospatial, data-engineering, maps

## Member repositories
- locationtech/geotrellis (main) score 84

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:32.253961+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 2026-08-30T04:40:46.609521+00:00, confidence not recorded.
  - readme: https://github.com/locationtech/geotrellis (fetched 2026-08-28T04:04:32.253961+00:00, sha 87555c2cb27b)
  - homepage: http://geotrellis.io (fetched 2026-08-29T11:57:54.198338+00:00, sha e2f8efdf9b78)
  - site_page: https://www.eclipse.org/org/workinggroups/about.php (fetched 2026-08-29T11:57:54.209400+00:00, sha 617d0404aabe)
  - site_page: https://www.eclipse.org/collaborations (fetched 2026-08-29T11:57:54.207668+00:00, sha e85bba857bf3)
  - site_page: https://www.eclipse.org/collaborations/interest-groups (fetched 2026-08-29T11:57:54.211236+00:00, sha 0a842674cf43)
  - site_page: https://newsroom.eclipse.org/news/press-releases (fetched 2026-08-29T11:57:54.212986+00:00, sha e4dc7d5d1a30)
  - site_page: https://www.eclipse.org/org (fetched 2026-08-29T11:57:54.214843+00:00, sha 910b82ad62a4)
  - site_page: https://projects.eclipse.org/projects/locationtech.geotrellis/releases/3.8.1 (fetched 2026-08-29T11:57:54.216524+00:00, sha 340f223f663b)
  - site_page: https://projects.eclipse.org/projects/locationtech.geotrellis/releases/3.8.0 (fetched 2026-08-29T11:57:54.218104+00:00, sha 8bcac08c0fb4)
  - site_page: https://projects.eclipse.org/projects/locationtech.geotrellis/releases/3.7.1 (fetched 2026-08-29T11:57:54.220549+00:00, sha 97e3adcc40b0)
- Data as of 2026-08-30T08:39:29.467469+00:00.