{"action":"opened","issue":{"url":"https://api.github.com/repos/tlafarge/alphashape3d/issues/6","repository_url":"https://api.github.com/repos/tlafarge/alphashape3d","labels_url":"https://api.github.com/repos/tlafarge/alphashape3d/issues/6/labels{/name}","comments_url":"https://api.github.com/repos/tlafarge/alphashape3d/issues/6/comments","events_url":"https://api.github.com/repos/tlafarge/alphashape3d/issues/6/events","html_url":"https://github.com/tlafarge/alphashape3d/issues/6","id":159834847,"number":6,"title":"Segmentation fault","user":{"login":"tcristea","id":19890350,"avatar_url":"https://avatars.githubusercontent.com/u/19890350?v=3","gravatar_id":"","url":"https://api.github.com/users/tcristea","html_url":"https://github.com/tcristea","followers_url":"https://api.github.com/users/tcristea/followers","following_url":"https://api.github.com/users/tcristea/following{/other_user}","gists_url":"https://api.github.com/users/tcristea/gists{/gist_id}","starred_url":"https://api.github.com/users/tcristea/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tcristea/subscriptions","organizations_url":"https://api.github.com/users/tcristea/orgs","repos_url":"https://api.github.com/users/tcristea/repos","events_url":"https://api.github.com/users/tcristea/events{/privacy}","received_events_url":"https://api.github.com/users/tcristea/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-06-12T16:12:32Z","updated_at":"2016-06-12T16:12:32Z","closed_at":null,"body":"_I've encountered this behaviour on a 3 dimensional data set, with duplicates removed:_\r\n\r\n*** caught segfault ***\r\naddress 0xc0b17c28, cause 'memory not mapped'\r\n\r\nTraceback:\r\n 1: .C(\"int1\", dup1, as.integer(nvt), as.integer(ned), in.edo, auxmu2,     Mu2, mu1, mu1up, PACKAGE = \"alphashape3d\")\r\n 2: ashape3d(as.matrix(intabl), alpha = 0.1)\r\n\r\nPossible actions:\r\n1: abort (with core dump, if enabled)\r\n2: normal R exit\r\n3: exit R without saving workspace\r\n4: exit R saving workspace\r\n\r\n_The output of R.Version() is_ \r\n\r\n$platform\r\n[1] \"x86_64-pc-linux-gnu\"\r\n\r\n$arch\r\n[1] \"x86_64\"\r\n\r\n$os\r\n[1] \"linux-gnu\"\r\n\r\n$system\r\n[1] \"x86_64, linux-gnu\"\r\n\r\n$status\r\n[1] \"\"\r\n\r\n$major\r\n[1] \"3\"\r\n\r\n$minor\r\n[1] \"3.0\"\r\n\r\n$year\r\n[1] \"2016\"\r\n\r\n$month\r\n[1] \"05\"\r\n\r\n$day\r\n[1] \"03\"\r\n\r\n$`svn rev`\r\n[1] \"70573\"\r\n\r\n$language\r\n[1] \"R\"\r\n\r\n$version.string\r\n[1] \"R version 3.3.0 (2016-05-03)\"\r\n\r\n$nickname\r\n[1] \"Supposedly Educational\"\r\n\r\n> packageVersion(\"alphashape3d\")\r\n[1] ‘1.2’\r\n\r\n_In the attached zip there is a single rds archive with a list of data frames; the call to ashape3d gives segmentation fault for the list's elements with indices 2, 6, 8, 11, 12, 16 out of a total of 19. I've split a larger data set in the list after removing the duplicates to eliminate the possibility of encountering the same problem as in an already closed issue and in order to narrow the problem.  I've verified that the problem stays when installing fresh from github._\r\n\r\n[listIntabLongCPP.zip](https://github.com/tlafarge/alphashape3d/files/310843/listIntabLongCPP.zip)\r\n"}}
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