{"action":"created","issue":{"url":"https://api.github.com/repos/tangrams/tangram/issues/456","repository_url":"https://api.github.com/repos/tangrams/tangram","labels_url":"https://api.github.com/repos/tangrams/tangram/issues/456/labels{/name}","comments_url":"https://api.github.com/repos/tangrams/tangram/issues/456/comments","events_url":"https://api.github.com/repos/tangrams/tangram/issues/456/events","html_url":"https://github.com/tangrams/tangram/issues/456","id":191770262,"number":456,"title":"Rendering error in Mapzen tile 9/123/184.topojson","user":{"login":"mbloch","id":1232222,"avatar_url":"https://avatars.githubusercontent.com/u/1232222?v=3","gravatar_id":"","url":"https://api.github.com/users/mbloch","html_url":"https://github.com/mbloch","followers_url":"https://api.github.com/users/mbloch/followers","following_url":"https://api.github.com/users/mbloch/following{/other_user}","gists_url":"https://api.github.com/users/mbloch/gists{/gist_id}","starred_url":"https://api.github.com/users/mbloch/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mbloch/subscriptions","organizations_url":"https://api.github.com/users/mbloch/orgs","repos_url":"https://api.github.com/users/mbloch/repos","events_url":"https://api.github.com/users/mbloch/events{/privacy}","received_events_url":"https://api.github.com/users/mbloch/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":6,"created_at":"2016-11-25T22:18:40Z","updated_at":"2016-12-14T04:29:36Z","closed_at":null,"body":"URL of map in Tangram Play showing the issue:\r\nhttps://mapzen.com/tangram/play/?lines=5&scene=https%3A%2F%2Fapi.github.com%2Fgists%2F4b13717189152290d4b89f52f44d335a#9.9159/44.8688/-93.1499\r\nURL of affected tile:  https://tile.mapzen.com/mapzen/vector/v1/all/9/123/184.topojson\r\n\r\nYou should be able to see in the example map above and the images below that one particular polygon in the water layer is drawing incorrectly. If I switch to an MVT or GeoJSON datasource, the problem goes away.\r\n\r\n![image](https://cloud.githubusercontent.com/assets/1232222/20635946/c4c8e49c-b332-11e6-9867-34c4cba8c850.png)\r\n![image](https://cloud.githubusercontent.com/assets/1232222/20636152/b80a8a64-b335-11e6-8112-e0d1c5d4a34c.png)\r\n\r\nIf I open the TopoJSON tile in Mapshaper or another viewer, the affected polygon looks normal, so the oddly rendered shape isn't baked into the tile data:\r\n\r\n![image](https://cloud.githubusercontent.com/assets/1232222/20635941/a540b032-b332-11e6-9331-1daebf16a370.png)\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/tangrams/tangram/issues/comments/266939895","html_url":"https://github.com/tangrams/tangram/issues/456#issuecomment-266939895","issue_url":"https://api.github.com/repos/tangrams/tangram/issues/456","id":266939895,"user":{"login":"rmarianski","id":53770,"avatar_url":"https://avatars.githubusercontent.com/u/53770?v=3","gravatar_id":"","url":"https://api.github.com/users/rmarianski","html_url":"https://github.com/rmarianski","followers_url":"https://api.github.com/users/rmarianski/followers","following_url":"https://api.github.com/users/rmarianski/following{/other_user}","gists_url":"https://api.github.com/users/rmarianski/gists{/gist_id}","starred_url":"https://api.github.com/users/rmarianski/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rmarianski/subscriptions","organizations_url":"https://api.github.com/users/rmarianski/orgs","repos_url":"https://api.github.com/users/rmarianski/repos","events_url":"https://api.github.com/users/rmarianski/events{/privacy}","received_events_url":"https://api.github.com/users/rmarianski/received_events","type":"User","site_admin":false},"created_at":"2016-12-14T04:29:36Z","updated_at":"2016-12-14T04:29:36Z","body":"There are ogc invalid geometries in that tile, so it's likely something like that is going on.\r\n"}}
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