In Stroker, this lines seems causing the problem: https://github.com/openjdk/jdk/blob/a0cccb54791d954bf08da5aac9b9794e370617c8/src/java.desktop/share/classes/sun/java2d/marlin/Stroker.java#L568
If delta is 0, then tangent is (1, 0) ! Should be: If drawOp was lineTo and delta is 0, return (skip). I wonder if there are other renderer suffering the same problem. Phil, how could we generalize this kind of path operation filtering ? My 2 cents, Laurent Le mer. 25 mai 2022, 08:15, Laurent Bourgès <bourges.laur...@gmail.com> a écrit : > Jeremy, > > Probably your fix could be plugged in marlin pathTo() : > > https://github.com/openjdk/jdk/blob/742644e291039e4f2f30cf80718669c06da5809c/src/java.desktop/share/classes/sun/java2d/marlin/DMarlinRenderingEngine.java#L768 > > Or in Stroker lineTo... > > Laurent > > Le mar. 24 mai 2022, 22:55, Jeremy Wood <micklen...@gmail.com> a écrit : > >> I may still move it in the Stroker classes. There are a few other things >> I want to look at, too. This is a very rough draft I put together in >> under an hour; I just wanted to make sure it was worth pursuing before I >> put more time into it. >> >> - Jeremy >> >> >> ------ Original Message ------ >> From "Laurent Bourgès" <bourges.laur...@gmail.com> >> To "Jeremy Wood" <micklen...@gmail.com> >> Cc client-libs-dev@openjdk.java.net >> Date 5/24/2022 4:35:21 PM >> Subject Re: Any interest in JDK-8264999 (stroke miter edge case in >> Marlin) >> >> >Thanks Jereremy for the notification I was not aware of this one. >> > >> >I wonder if the problem should be fixed inside the marlin renderer >> >Stroker that should ignore such useless lineTo... >> > >> >I will read your code and try to figure out potential causes in stroker >> >and give you my feedback. >> > >> >Laurent >> > >> >Le mar. 24 mai 2022, 19:52, Jeremy Wood <micklen...@gmail.com> a écrit >> >: >> >>This is a P3 ticket currently assigned to Philip Race: >> >>https://bugs.openjdk.java.net/browse/JDK-8264999 >> >> >> >>If I put together a PR: Is anyone available/willing to help review it? >> >> >> >>I made a rough draft >> >>< >> https://github.com/openjdk/jdk/compare/master...mickleness:JDK-8264999?expand=1 >> > >> >>of a potential solution last night. I can continue to work on this, or >> >>I >> >>can move on if the interest isn’t there. >> >> >> >>(No urgency at all.) >> >> >> >>Regards, >> >> - Jeremy >> >><https://> >> >
