Shuhao twisted the bytes to say:
Shuhao> Hey, Shuhao> I'm curious to how the xournal line drawing algorithm works. Is there a Shuhao> document somewhere documenting its process? This algorithm is the best Shuhao> I've seen from a couple of programs and I'm wondering how exactly it's Shuhao> accomplished. Unfortunately my C skills are not as good and somewhat Shuhao> rusty so I'm having some trouble reading through the xo-paint file. I have been subjectively comparing different PDF algorithms. The easy answer is that it does not depend on the line rendering algorithm but on the speed of the sampling. There are two types of algorithms: 1. Those that keep every sampling point (xournal) and draw lines between them. 2. Those that simplify the curve to a spline. it is easy to spot the latter, because the line ends being in different points than drawn. Regarding type 2, you can test how good the sampling is with a very small experiment. Draw, as fast as you can an oblong spiral. then zoom in. You will see the points of inflection in any software that does not simplify to spline. --dmg Shuhao> Thanks, Shuhao> Shuhao Shuhao> ------------------------------------------------------------------------------ Shuhao> Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Shuhao> Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Shuhao> Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Shuhao> Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer Shuhao> http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk Shuhao> _______________________________________________ Shuhao> Xournal-devel mailing list Shuhao> Xournal-devel@lists.sourceforge.net Shuhao> https://lists.sourceforge.net/lists/listinfo/xournal-devel -- Daniel M. German "What is the matter? --Never mind Anonymous -> What is mind? --It does not matter." http://turingmachine.org/ http://silvernegative.com/ dmg (at) uvic (dot) ca replace (at) with @ and (dot) with . ------------------------------------------------------------------------------ Comprehensive Server Monitoring with Site24x7. Monitor 10 servers for $9/Month. Get alerted through email, SMS, voice calls or mobile push notifications. Take corrective actions from your mobile device. http://p.sf.net/sfu/Zoho _______________________________________________ Xournal-devel mailing list Xournal-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xournal-devel
