{"action":"closed","issue":{"url":"https://api.github.com/repos/lagadic/visp/issues/400","repository_url":"https://api.github.com/repos/lagadic/visp","labels_url":"https://api.github.com/repos/lagadic/visp/issues/400/labels{/name}","comments_url":"https://api.github.com/repos/lagadic/visp/issues/400/comments","events_url":"https://api.github.com/repos/lagadic/visp/issues/400/events","html_url":"https://github.com/lagadic/visp/issues/400","id":341222601,"node_id":"MDU6SXNzdWUzNDEyMjI2MDE=","number":400,"title":"vpCircle::display() didn't work as expected","user":{"login":"liaoyeguo","id":2355910,"node_id":"MDQ6VXNlcjIzNTU5MTA=","avatar_url":"https://avatars0.githubusercontent.com/u/2355910?v=4","gravatar_id":"","url":"https://api.github.com/users/liaoyeguo","html_url":"https://github.com/liaoyeguo","followers_url":"https://api.github.com/users/liaoyeguo/followers","following_url":"https://api.github.com/users/liaoyeguo/following{/other_user}","gists_url":"https://api.github.com/users/liaoyeguo/gists{/gist_id}","starred_url":"https://api.github.com/users/liaoyeguo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/liaoyeguo/subscriptions","organizations_url":"https://api.github.com/users/liaoyeguo/orgs","repos_url":"https://api.github.com/users/liaoyeguo/repos","events_url":"https://api.github.com/users/liaoyeguo/events{/privacy}","received_events_url":"https://api.github.com/users/liaoyeguo/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2018-07-14T09:13:32Z","updated_at":"2018-08-20T08:39:00Z","closed_at":"2018-08-20T08:39:00Z","author_association":"NONE","body":"according to this document  [http://visp-doc.inria.fr/manual/visp-tutorial-geometric-objects.pdf](url), vpCircle::display() method should draw a ellipse as follow\r\n![image](https://user-images.githubusercontent.com/2355910/42722917-e1253238-8786-11e8-9637-89fdfebfddf0.png)\r\n\r\n_image from visp-tutorial-geometric-objects.pdf_\r\n\r\nHowever, when i build and run the example `example/manual/geometric-features/manGeometricFeatures.cpp`, the result didn't work as expected.\r\n\r\n![image](https://user-images.githubusercontent.com/2355910/42722953-86e1259c-8787-11e8-819b-f52f7a7e9f83.png)\r\n\r\n_display methods for other features are commented out._\r\n\r\nWhat should I do to fix this problem ?\r\n\r\nCurrently,  I draw a ellipse by calling `vpMeterPixelConversion::convertEllipse` followed by `vpDisplay::displayEllipse`.\r\nI was wondering if there exists a simple way to draw a projected circle?"}}
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