Inkscape Devel

Download

inkscape-devel@lists.inkscape.org

February 2015

42 participants
62 discussions

Mesh Gradients: Auto Smoothing
by Tavmjong Bah 02 Feb '15

02 Feb '15

Hi, I've implemented some auto-smoothing algorithms for mesh gradients in trunk. It would be very helpful others can have a look a it. Normal Coons Patch mesh gradients suffer from abrupt changes in the color derivatives along patch boundaries which leads to undesirable visible artifacts (Mach Banding). Both Illustrator and CoralDraw implement smoothing to eliminate this problem. I will be proposing to the SVG working group that SVG 2 mesh gradients should have an auto-smoothing option. I've turned on some experimental features in trunk including meshes. Information on how to edit meshes and what smoothing options are implemented can be found at: http://wiki.inkscape.org/wiki/index.php/Mesh_Gradients Most of the derivative calculations are currently being done using a "Catmul-Rom" method which assumes an evenly spaced grid. I'll change this to allow for un-even grids in the near future. Thanks, Tav

2 3

Re: [Inkscape-devel] Jenkins
by Johan Engelen 01 Feb '15

01 Feb '15

I'm sorry for the potential confusion in my email: I meant to say, please sign up for inkscape-tester@...233... You can also register yourself for jenkins.inkscape.org, but that is only needed when you want to help maintain and improve the Jenkins setup. cheers, Johan ----- Reply message ----- From: "Christoffer Holmstedt" <christoffer.holmstedt@...400...> To: "Inkscape Devel List" <inkscape-devel(a)lists.sourceforge.net>, <inkscape-tester(a)lists.sourceforge.net> Subject: [Inkscape-devel] Jenkins Date: Sat, Jan 31, 2015 06:13 Thanks for the information about that tester mailing list, I've signed up. I'm interested in testing and verification so this could perhaps be a good way into the core of inkscape source code. -- Christoffer Holmstedt 2015-01-30 23:44 GMT+01:00 Johan Engelen <jbc.engelen@...2592...>: > Hi all, > Our "continuous integration" system, Jenkins, is up and running. It > does automated builds, checks for bugs, runs the unittests, generates > documentation with doxygen and will publish it online, and in future > will also run rendertests. > Currently it does those things for Inkscape trunk and 0.91.x branches; > and also runs some jobs for lib2geom trunk. > If some job fails (i.e. build is broken, a test no longer passes, or > clang scanbuild discovers a new potential bug), Jenkins will send a > notification email to the inkscape-tester SF maillist. If you are an > active developer, please sign up for that maillist if you have not already. > > You do not need to sign up, unless you want to help maintaining and > improving the system. All help is welcome. If you want to help, sign up, > and let us know so we can give you more rights. Currently, only I and > Martin Owens have full access. That is definitely not enough, so let > yourself be known if you are interested! > > Have a look here: http://jenkins.inkscape.org > > cheers, > Johan > > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming. The Go Parallel Website, > sponsored by Intel and developed in partnership with Slashdot Media, is your > hub for all things parallel software development, from weekly thought > leadership blogs to news, videos, case studies, tutorials and more. Take a > look and join the conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > Inkscape-devel mailing list > Inkscape-devel(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/inkscape-devel ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Inkscape-devel mailing list Inkscape-devel(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/inkscape-devel

2 3