{"id":16977873,"url":"https://github.com/jcmgray/polyknot","last_synced_at":"2025-04-05T17:10:35.162Z","repository":{"id":21360221,"uuid":"24677413","full_name":"jcmgray/PolyKnot","owner":"jcmgray","description":"C code to heuristically analyse 'knots' in open chains such as polymers. ","archived":false,"fork":false,"pushed_at":"2014-10-15T16:40:28.000Z","size":164,"stargazers_count":1,"open_issues_count":8,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-04-04T19:22:54.663Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"C","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/jcmgray.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2014-10-01T12:23:29.000Z","updated_at":"2022-11-10T05:09:52.000Z","dependencies_parsed_at":"2022-08-17T18:40:43.645Z","dependency_job_id":null,"html_url":"https://github.com/jcmgray/PolyKnot","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jcmgray%2FPolyKnot","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jcmgray%2FPolyKnot/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jcmgray%2FPolyKnot/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jcmgray%2FPolyKnot/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/jcmgray","download_url":"https://codeload.github.com/jcmgray/PolyKnot/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":247369965,"owners_count":20927928,"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":[],"created_at":"2024-10-14T01:30:00.353Z","updated_at":"2025-04-05T17:10:35.143Z","avatar_url":"https://github.com/jcmgray.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"PolyKnot\n========\n\nA C-library to heuristically identify and analyse 'knots' in open chains such as\npolymers. On receipt of the positions of a beads along the chain or string the\nfunction finds: crossing number, knot size and knot position.\n\nUsage\n-----\n\n* Create knot struct.\n* Vector inputted needs to describe the positions of the 'joints' or 'beads' in the\nchain with length 3N like so: **r** = ( x1, y1, z1, x2, y2, z2 ... xN, yN, zN )\n* Run analysis on knot object and chosen vector.\n* Clear knot struct.\n\nTheory\n------\n\nPolyKnot 'unties' an arbitrary length chain via Reidemeister moves rather than\nattempting to classify the knot through symbolic representation of the\ncrossings and subsequent simplification and recognition of a polynomial. The\nbenefit of this, aside from being more a efficient routine in terms of memory and\nCPU expense, is the possibility of identifying a knot's 'position' and 'size'\nalong a open chain without forcing the ends together.\n\nTo Do\n-----\n\n* More efficient exploration of Reidemeister 3 moves.\n* Find best combination of projections.\n* Memory optimise.\n* categorise knots with cross count (via recognition)\n* Two knots?\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjcmgray%2Fpolyknot","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjcmgray%2Fpolyknot","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjcmgray%2Fpolyknot/lists"}