{"action":"created","issue":{"url":"https://api.github.com/repos/altmany/export_fig/issues/44","labels_url":"https://api.github.com/repos/altmany/export_fig/issues/44/labels{/name}","comments_url":"https://api.github.com/repos/altmany/export_fig/issues/44/comments","events_url":"https://api.github.com/repos/altmany/export_fig/issues/44/events","html_url":"https://github.com/altmany/export_fig/issues/44","id":61141431,"number":44,"title":"Lines on Patch-Objects after *.EPS/PDF export - e.g. with contourf","user":{"login":"phwi","id":9573854,"avatar_url":"https://avatars.githubusercontent.com/u/9573854?v=3","gravatar_id":"","url":"https://api.github.com/users/phwi","html_url":"https://github.com/phwi","followers_url":"https://api.github.com/users/phwi/followers","following_url":"https://api.github.com/users/phwi/following{/other_user}","gists_url":"https://api.github.com/users/phwi/gists{/gist_id}","starred_url":"https://api.github.com/users/phwi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/phwi/subscriptions","organizations_url":"https://api.github.com/users/phwi/orgs","repos_url":"https://api.github.com/users/phwi/repos","events_url":"https://api.github.com/users/phwi/events{/privacy}","received_events_url":"https://api.github.com/users/phwi/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/altmany/export_fig/labels/internal%20Matlab%20bug","name":"internal Matlab bug","color":"eb6420"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-03-13T17:10:16Z","updated_at":"2015-03-20T12:32:26Z","closed_at":null,"body":"I know that there are plenty of comments on strange lines appearing in exported matlab output, still I didn't really find out if there is already a solution to my specific problem.\r\n\r\nAbout 3 years ago I exported a MATLAB contourf plot to *.eps with export_fig of ojwoodford. I guess it was MATLAB R2012a or b and the present version of export_fig those days. It worked perfectly and there were no strange atrifacts, whatsorever.\r\nYesterday I did the same with MATLAB R2014b and the current release of export_fig. Now I have strange artifacts when exporting to *.eps or *.pdf.\r\n\r\nSee the attached image (left: 3 years ago, right: yesterday - it's a different colormap and a different matrix of data, but this shouldn't be the problem...)\r\n![lines_in_contourf](https://cloud.githubusercontent.com/assets/9573854/6643299/88783d16-c9ab-11e4-8a02-643e815c8378.png)\r\n\r\nUnfortunately those white lines are really present --> When I import the *.eps e.g. to Corel Technical Designer and further edit the image to do some tweaks for my presentation, these lines remain visible. After doing some editing and exporting from Corel Technical Designer to *.png or *.eps - I have the lines in both output formats...\r\n\r\nIs there any solution to this problem?\r\nIs it a bug or a feature?\r\nWhy did it work 3 years ago and now it doesn't anymore?\r\n\r\nIs it the same issue that was already reported (#28) and ojwoodford responded that it is a bug, which will be fixed in the next MATLAB release: https://github.com/altmany/export_fig/issues/28 ?? --> Because I just updated to MATLAB R2015a and to the latest export_fig release. The problem got not fixed...\r\nThanks for your help!\r\n\r\n\r\nPS: In between I believe it is actually the anti aliasing... in adobe reader I can set a property (2D graphics accelaration) --> if switched on: the lines disappear. If turned off --> the lines reappear. But in most of the other programs (including GS viewer) I didn't manage to get rid of those lines. Actually the lines obstruct further editing in some third party software outside of MATLAB... and I don't get why I did not have those lines when exporting three years ago... I checked my *.eps files from then: no lines at all in none of the figures I exported then (neither in GS viewer nor in third party software...) --> So why do those lines appear now??"},"comment":{"url":"https://api.github.com/repos/altmany/export_fig/issues/comments/84003592","html_url":"https://github.com/altmany/export_fig/issues/44#issuecomment-84003592","issue_url":"https://api.github.com/repos/altmany/export_fig/issues/44","id":84003592,"user":{"login":"jakobrdl","id":11570618,"avatar_url":"https://avatars.githubusercontent.com/u/11570618?v=3","gravatar_id":"","url":"https://api.github.com/users/jakobrdl","html_url":"https://github.com/jakobrdl","followers_url":"https://api.github.com/users/jakobrdl/followers","following_url":"https://api.github.com/users/jakobrdl/following{/other_user}","gists_url":"https://api.github.com/users/jakobrdl/gists{/gist_id}","starred_url":"https://api.github.com/users/jakobrdl/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jakobrdl/subscriptions","organizations_url":"https://api.github.com/users/jakobrdl/orgs","repos_url":"https://api.github.com/users/jakobrdl/repos","events_url":"https://api.github.com/users/jakobrdl/events{/privacy}","received_events_url":"https://api.github.com/users/jakobrdl/received_events","type":"User","site_admin":false},"created_at":"2015-03-20T12:32:26Z","updated_at":"2015-03-20T12:32:26Z","body":"Is the thin white line from the bottom right to the top left corner in the below picture caused by the same problem as described above?\r\nThe picture is generated with imagesc(...) in Matlab 2014b (OS X Yosemite 10.10.2, export_fig updated from this site earlier today) where the figure is exported to PDF format. If I export to PNG format, the thin white line is not there. I consistently observe this white line whenever I plot data on the entire plane (imagesc(...), surf(...), fill(...)) and export it to PDF format.\r\n\r\n![image](https://cloud.githubusercontent.com/assets/11570618/6751418/dedae296-cf03-11e4-8515-e46dbd1c6b51.png)\r\n\r\n"}}