{"id":23567315,"url":"https://github.com/jlgregorio/mesh-quadric-edge-collapse-python","last_synced_at":"2025-10-10T05:40:26.053Z","repository":{"id":269058262,"uuid":"901796878","full_name":"jlgregorio/mesh-quadric-edge-collapse-python","owner":"jlgregorio","description":"Simple Python implementation of mesh simplification using a quadric based edge-collapse strategy","archived":false,"fork":false,"pushed_at":"2025-01-02T16:49:13.000Z","size":448,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-07-19T11:28:07.052Z","etag":null,"topics":["mesh-simplification","python"],"latest_commit_sha":null,"homepage":"","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/jlgregorio.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2024-12-11T10:32:02.000Z","updated_at":"2025-01-02T16:49:16.000Z","dependencies_parsed_at":"2024-12-20T16:33:38.325Z","dependency_job_id":"ef7e99a1-0e54-44c8-bf2b-ffc31e8aa412","html_url":"https://github.com/jlgregorio/mesh-quadric-edge-collapse-python","commit_stats":null,"previous_names":["jlgregorio/mesh-quadric-edge-collapse-python"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/jlgregorio/mesh-quadric-edge-collapse-python","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jlgregorio%2Fmesh-quadric-edge-collapse-python","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jlgregorio%2Fmesh-quadric-edge-collapse-python/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jlgregorio%2Fmesh-quadric-edge-collapse-python/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jlgregorio%2Fmesh-quadric-edge-collapse-python/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/jlgregorio","download_url":"https://codeload.github.com/jlgregorio/mesh-quadric-edge-collapse-python/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jlgregorio%2Fmesh-quadric-edge-collapse-python/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":279002889,"owners_count":26083468,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-10-10T02:00:06.843Z","response_time":62,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["mesh-simplification","python"],"created_at":"2024-12-26T18:31:27.927Z","updated_at":"2025-10-10T05:40:26.035Z","avatar_url":"https://github.com/jlgregorio.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Mesh simplification using quadric edge-collapse\n\nThis is a custom (and in progress) Python implementation of the well-known mesh simplification algorithm proposed by M. Garland \u0026 P. S. Heckbert in 1997. It is based on a quadric edge-collapse strategy, which iteratively contracts vertex pairs using quadrics to minimize the error with the original mesh.\n\n\u003cdiv align=\"center\"\u003e\n  \u003cp\u003e\u003cimg src=\"docs/example_bunny.png\" width=\"75%\"\u003e\u003c/p\u003e\n\u003c/div\u003e\n\nThis implementation tries to \"keep things as simple as possible\", limiting the use of third-party libraries. It is currently limited to triangular meshes and does not take the resulting mesh quality into account yet.\n\n## Dependencies\n\nThe code is in `python` and relies only on `numpy` for the sake of simplicity.\n\n## Going further\n\nMore details can be found in the original paper: Garland, M., \u0026 Heckbert, P. S. (1997). Surface Simplification Using Quadric Error Metrics. In *Proceedings of SIGGRAPH* (pp. 209-216). A digital copy of the paper is available [here](https://mgarland.org/files/papers/quadrics.pdf).\n\nThe algorithm has been the subject of numerous implementations. Some good ones can be found in MeshLab (and its Python library PyMeshLab), Open3D or CGAL - to name just a few.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjlgregorio%2Fmesh-quadric-edge-collapse-python","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjlgregorio%2Fmesh-quadric-edge-collapse-python","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjlgregorio%2Fmesh-quadric-edge-collapse-python/lists"}