{"id":15165872,"url":"https://github.com/stla/cgalpolygons","last_synced_at":"2025-07-06T14:05:47.219Z","repository":{"id":73101514,"uuid":"595607024","full_name":"stla/cgalPolygons","owner":"stla","description":"Utilities for polygons, using CGAL.","archived":false,"fork":false,"pushed_at":"2024-05-15T16:21:53.000Z","size":2183,"stargazers_count":3,"open_issues_count":2,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2025-04-07T06:22:04.173Z","etag":null,"topics":["cgal","computational-geometry","polygon","r","r6","rcpp"],"latest_commit_sha":null,"homepage":"","language":"R","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/stla.png","metadata":{"files":{"readme":"README.md","changelog":"NEWS.md","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}},"created_at":"2023-01-31T12:44:32.000Z","updated_at":"2024-05-15T16:21:57.000Z","dependencies_parsed_at":"2023-12-22T09:58:21.086Z","dependency_job_id":"f4ee9d35-811b-49e4-9364-5246275b148d","html_url":"https://github.com/stla/cgalPolygons","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/stla/cgalPolygons","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stla%2FcgalPolygons","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stla%2FcgalPolygons/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stla%2FcgalPolygons/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stla%2FcgalPolygons/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/stla","download_url":"https://codeload.github.com/stla/cgalPolygons/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stla%2FcgalPolygons/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":263914455,"owners_count":23529077,"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","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":["cgal","computational-geometry","polygon","r","r6","rcpp"],"created_at":"2024-09-27T04:05:27.998Z","updated_at":"2025-07-06T14:05:47.199Z","avatar_url":"https://github.com/stla.png","language":"R","funding_links":[],"categories":[],"sub_categories":[],"readme":"# cgalPolygons\n\nR6 based utilities for polygons.\n\n\u003c!-- badges: start --\u003e\n[![R-CMD-check](https://github.com/stla/cgalPolygons/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/stla/cgalPolygons/actions/workflows/R-CMD-check.yaml)\n[![R-CMD-check-valgrind](https://github.com/stla/cgalPolygons/actions/workflows/R-CMD-check-valgrind.yaml/badge.svg)](https://github.com/stla/cgalPolygons/actions/workflows/R-CMD-check-valgrind.yaml)\n\u003c!-- badges: end --\u003e\n\n### Decomposition into convex parts\n\n- *Eight-pointed star:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/star.png)\n\n- *Monster head:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/monster.png)\n\n- *Sun curve with a hole:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/funnyCurve.png)\n\n\n### Minkowski sum\n\n- *Eight-pointed star + sun curve:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/msum_star-funnyCurve.png)\n\n- *Decagram + circle with varying radius:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/minko_circle-decagram.gif)\n\n\n### Boolean operations\n\n- *Intersection:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/boolop_intersection.png)\n\n- *Union:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/boolop_union.png)\n\n- *Difference:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/boolop_difference.png)\n\n- *Symmetric difference:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/boolop_symdiff.png)\n\n- *An example with some holes:*\n\n![](https://raw.githubusercontent.com/stla/cgalPolygons/main/inst/screenshots/boolop_withHoles.png)\n\n\n## License\n\nThis package is provided under the GPL-3 license but it uses the C++ library \nCGAL. If you wish to use CGAL for commercial purposes, you must obtain a \nlicense from the [GeometryFactory](https://geometryfactory.com).\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstla%2Fcgalpolygons","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fstla%2Fcgalpolygons","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstla%2Fcgalpolygons/lists"}