{"action":"opened","issue":{"url":"https://api.github.com/repos/debrief/debrief/issues/1291","labels_url":"https://api.github.com/repos/debrief/debrief/issues/1291/labels{/name}","comments_url":"https://api.github.com/repos/debrief/debrief/issues/1291/comments","events_url":"https://api.github.com/repos/debrief/debrief/issues/1291/events","html_url":"https://github.com/debrief/debrief/issues/1291","id":92662506,"number":1291,"title":"Introduce RayTrace model","user":{"login":"IanMayo","id":1108513,"avatar_url":"https://avatars.githubusercontent.com/u/1108513?v=3","gravatar_id":"","url":"https://api.github.com/users/IanMayo","html_url":"https://github.com/IanMayo","followers_url":"https://api.github.com/users/IanMayo/followers","following_url":"https://api.github.com/users/IanMayo/following{/other_user}","gists_url":"https://api.github.com/users/IanMayo/gists{/gist_id}","starred_url":"https://api.github.com/users/IanMayo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/IanMayo/subscriptions","organizations_url":"https://api.github.com/users/IanMayo/orgs","repos_url":"https://api.github.com/users/IanMayo/repos","events_url":"https://api.github.com/users/IanMayo/events{/privacy}","received_events_url":"https://api.github.com/users/IanMayo/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/debrief/debrief/labels/sys_algorithms","name":"sys_algorithms","color":"bfd4f2"}],"state":"open","locked":false,"assignee":{"login":"IanMayo","id":1108513,"avatar_url":"https://avatars.githubusercontent.com/u/1108513?v=3","gravatar_id":"","url":"https://api.github.com/users/IanMayo","html_url":"https://github.com/IanMayo","followers_url":"https://api.github.com/users/IanMayo/followers","following_url":"https://api.github.com/users/IanMayo/following{/other_user}","gists_url":"https://api.github.com/users/IanMayo/gists{/gist_id}","starred_url":"https://api.github.com/users/IanMayo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/IanMayo/subscriptions","organizations_url":"https://api.github.com/users/IanMayo/orgs","repos_url":"https://api.github.com/users/IanMayo/repos","events_url":"https://api.github.com/users/IanMayo/events{/privacy}","received_events_url":"https://api.github.com/users/IanMayo/received_events","type":"User","site_admin":false},"milestone":{"url":"https://api.github.com/repos/debrief/debrief/milestones/4","html_url":"https://github.com/debrief/debrief/milestones/Future/Maybe","labels_url":"https://api.github.com/repos/debrief/debrief/milestones/4/labels","id":664401,"number":4,"title":"Future/Maybe","description":"","creator":{"login":"IanMayo","id":1108513,"avatar_url":"https://avatars.githubusercontent.com/u/1108513?v=3","gravatar_id":"","url":"https://api.github.com/users/IanMayo","html_url":"https://github.com/IanMayo","followers_url":"https://api.github.com/users/IanMayo/followers","following_url":"https://api.github.com/users/IanMayo/following{/other_user}","gists_url":"https://api.github.com/users/IanMayo/gists{/gist_id}","starred_url":"https://api.github.com/users/IanMayo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/IanMayo/subscriptions","organizations_url":"https://api.github.com/users/IanMayo/orgs","repos_url":"https://api.github.com/users/IanMayo/repos","events_url":"https://api.github.com/users/IanMayo/events{/privacy}","received_events_url":"https://api.github.com/users/IanMayo/received_events","type":"User","site_admin":false},"open_issues":56,"closed_issues":24,"state":"open","created_at":"2014-05-20T12:57:55Z","updated_at":"2015-07-02T15:15:56Z","due_on":null,"closed_at":null},"comments":0,"created_at":"2015-07-02T15:15:56Z","updated_at":"2015-07-02T15:15:56Z","closed_at":null,"body":"Guided by Andrew H, I've come across the Open Source Bellhop acoustic proploss model:\r\nhttp://oalib.hlsresearch.com/Rays/\r\n\r\nIt's only available in Fortran source, but it has had recent (2015) maintenance.\r\n\r\nHere's the user manual: http://oalib.hlsresearch.com/Rays/HLS-2010-1.pdf\r\n\r\nHere's a raytrace diagram:\r\n![bellhoprays](https://cloud.githubusercontent.com/assets/1108513/8480437/84ea9488-20d5-11e5-8203-e736b74b982f.png)\r\n\r\nAnd here's a heatmap of transmission loss:\r\n![bellhoptransmissionloss](https://cloud.githubusercontent.com/assets/1108513/8480438/8bedcd2c-20d5-11e5-977a-0055855fedb4.png)\r\n\r\nThis would be an amazing capability."}}