{"action":"closed","issue":{"url":"https://api.github.com/repos/execuc/LCInterlocking/issues/15","repository_url":"https://api.github.com/repos/execuc/LCInterlocking","labels_url":"https://api.github.com/repos/execuc/LCInterlocking/issues/15/labels{/name}","comments_url":"https://api.github.com/repos/execuc/LCInterlocking/issues/15/comments","events_url":"https://api.github.com/repos/execuc/LCInterlocking/issues/15/events","html_url":"https://github.com/execuc/LCInterlocking/issues/15","id":258990581,"node_id":"MDU6SXNzdWUyNTg5OTA1ODE=","number":15,"title":"Failure during adding parts with faces having no normals","user":{"login":"arkhnchul","id":17163127,"node_id":"MDQ6VXNlcjE3MTYzMTI3","avatar_url":"https://avatars0.githubusercontent.com/u/17163127?v=4","gravatar_id":"","url":"https://api.github.com/users/arkhnchul","html_url":"https://github.com/arkhnchul","followers_url":"https://api.github.com/users/arkhnchul/followers","following_url":"https://api.github.com/users/arkhnchul/following{/other_user}","gists_url":"https://api.github.com/users/arkhnchul/gists{/gist_id}","starred_url":"https://api.github.com/users/arkhnchul/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/arkhnchul/subscriptions","organizations_url":"https://api.github.com/users/arkhnchul/orgs","repos_url":"https://api.github.com/users/arkhnchul/repos","events_url":"https://api.github.com/users/arkhnchul/events{/privacy}","received_events_url":"https://api.github.com/users/arkhnchul/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2017-09-19T23:02:58Z","updated_at":"2018-12-01T09:49:25Z","closed_at":"2018-12-01T09:49:25Z","author_association":"NONE","body":"some faces of part surprisingly can exist without associated normal, especially those which created by extruding imported vector artwork, and in this case sort_area_face_common routine fails at face.normalAt() call. Patch with catching of resulting exceptions and test freecad file included.\r\n[fix_faces_without_normal.patch.txt](https://github.com/execuc/LCInterlocking/files/1316101/fix_faces_without_normal.patch.txt)\r\n[hopper_car_test.fcstd.zip](https://github.com/execuc/LCInterlocking/files/1316106/hopper_car_test.fcstd.zip)\r\n\r\n\r\n"}}
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