{"action":"created","issue":{"url":"https://api.github.com/repos/picoe/Eto/issues/679","repository_url":"https://api.github.com/repos/picoe/Eto","labels_url":"https://api.github.com/repos/picoe/Eto/issues/679/labels{/name}","comments_url":"https://api.github.com/repos/picoe/Eto/issues/679/comments","events_url":"https://api.github.com/repos/picoe/Eto/issues/679/events","html_url":"https://github.com/picoe/Eto/issues/679","id":204204935,"number":679,"title":"DrawImage Bitmap AntiAliases layers","user":{"login":"jaebird","id":56663,"avatar_url":"https://avatars.githubusercontent.com/u/56663?v=3","gravatar_id":"","url":"https://api.github.com/users/jaebird","html_url":"https://github.com/jaebird","followers_url":"https://api.github.com/users/jaebird/followers","following_url":"https://api.github.com/users/jaebird/following{/other_user}","gists_url":"https://api.github.com/users/jaebird/gists{/gist_id}","starred_url":"https://api.github.com/users/jaebird/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jaebird/subscriptions","organizations_url":"https://api.github.com/users/jaebird/orgs","repos_url":"https://api.github.com/users/jaebird/repos","events_url":"https://api.github.com/users/jaebird/events{/privacy}","received_events_url":"https://api.github.com/users/jaebird/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":4,"created_at":"2017-01-31T04:52:40Z","updated_at":"2017-02-04T00:46:18Z","closed_at":null,"body":"This is a bit hard to describe, but here I go:\r\n\r\nIf I draw all elements with the Drawable's main Graphics context the resulting elements are displayed correctly. If I create a transparent bitmap and then draw elements onto the bitmap, when the bitmap is drawn onto the drawable, the bitmap elements appear antialiased or dimmer. It seems like pixel edges have an alpha component to them even though I drew them with AntiAlias off using colors with the alpha value set to max (1.0 or 0xFF).\r\n\r\nMy desire is that the results of both methods are the exact same output. Any clues of where to look? Is this a cairo issue? Or floating point rounding?\r\n\r\nIf I draw a white line without antialiasing, I would expect it to be the same thickness and color from a transparent backed bitmap or drawing directly the Drawable with the Graphics context.\r\n\r\nUsing 2.3-build-0856 on Ubuntu with Gtk2, but Gtk3 does the same thing."},"comment":{"url":"https://api.github.com/repos/picoe/Eto/issues/comments/277402118","html_url":"https://github.com/picoe/Eto/issues/679#issuecomment-277402118","issue_url":"https://api.github.com/repos/picoe/Eto/issues/679","id":277402118,"user":{"login":"cra0zy","id":6773302,"avatar_url":"https://avatars.githubusercontent.com/u/6773302?v=3","gravatar_id":"","url":"https://api.github.com/users/cra0zy","html_url":"https://github.com/cra0zy","followers_url":"https://api.github.com/users/cra0zy/followers","following_url":"https://api.github.com/users/cra0zy/following{/other_user}","gists_url":"https://api.github.com/users/cra0zy/gists{/gist_id}","starred_url":"https://api.github.com/users/cra0zy/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cra0zy/subscriptions","organizations_url":"https://api.github.com/users/cra0zy/orgs","repos_url":"https://api.github.com/users/cra0zy/repos","events_url":"https://api.github.com/users/cra0zy/events{/privacy}","received_events_url":"https://api.github.com/users/cra0zy/received_events","type":"User","site_admin":false},"created_at":"2017-02-04T00:46:18Z","updated_at":"2017-02-04T00:46:18Z","body":"Oh, now that I read the enums it definitely seems that they were rotated, #697"}}
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