# BrunoLevy/geogram

a programming library with geometric algorithms

Repository: https://github.com/BrunoLevy/geogram
Canonical: https://ross.abutalabs.com/products/geogram
Language: C++
License: NOASSERTION
License Family: other
Topics: graphics-libraries, graphics-programming, mesh-generation, mesh-processing, geometry-processing
Last push: 2026-08-26T21:43:44+00:00

## Health v2 (maintenance only)
Score: 90/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 74, longevity 100
- inputs: {"age_days": 1652, "days_push": 7, "days_rel": 98, "gap_med": 54, "n_releases_24m": 10}
- 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 2499, forks 202 (observed 2026-08-28T04:06:56.863024+00:00)

## What it is
Geogram is a C++ programming library of geometric algorithms for geometry processing, including surface reconstruction, remeshing, Boolean operations, and Delaunay triangulations in 2D and 3D. It also provides lower-level building blocks such as exact predicates, mesh data structures, spatial search structures, and CPU/GPU linear solvers.

## Use cases
- generate 3D meshes from point clouds
- remesh a triangle mesh to improve quality
- compute Boolean operations on 3D solids
- build a Delaunay triangulation in 3D
- perform constructive solid geometry on meshes
- raytrace against a triangle mesh
- parameterize and texture a 3D surface
- solve sparse linear systems on CPU or GPU

## When to choose
- you need robust, well-tested computational geometry algorithms in C++
- you need mesh generation, remeshing, or surface reconstruction
- you need exact arithmetic predicates for geometric robustness
- you want a geometry-processing library with a SGP Software Award pedigree

## When to avoid
- you need a high-level 3D viewer or GUI out of the box
- your project is not in C++ or lacks a C++ build toolchain
- you only need simple 2D drawing or rendering rather than geometry algorithms

## Facets
- artifact type: library
- maturity: stable
- function: graphics, simulation, math, image-processing
- domain: graphics, computer-vision
- platform: cpp, cross-platform, wasm
- tags: geometry-processing, mesh-generation, mesh-processing, delaunay-triangulation, remeshing, surface-reconstruction, csg, computational-geometry, algorithms, game-development

## Member repositories
- BrunoLevy/geogram (main) score 90

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:56.863024+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 2026-08-30T02:26:57.340717+00:00, confidence not recorded.
  - readme: https://github.com/BrunoLevy/geogram (fetched 2026-08-28T04:06:56.863024+00:00, sha e759bcd20b68)
- Data as of 2026-08-30T08:39:29.467469+00:00.