Well, it's not real easy to explain but I'd suggest reading the parts of the C and A subcommands of <path> at http://www.w3.org/Graphics/SVG/IG/resources/svgprimer.html#path
The inkscape code seems to be an approximation to what it really is. What I think a rounded rect really is a path that moves linearly to the right sorta like this M 10,0 L 90 0 and then it arcs down to the right and ending up at 100, 10 sorta like this A 10 10 0 0 1 100 10 and then it repeats that for each of the four rounded corners. I've used integers instead of crazy-bignums since finite integers have such a nice feel to them Here's something that turns the first two corners for you: <svg xmlns="http://www.w3.org/2000/svg"; xmlns:xlink="http://www.w3.org/1999/xlink"; width="100%" height="100%" viewBox="-10 -10 200 200" > <path d="M 10,0 L 90 0 A 10 10 0 0 1 100 10 L 100 90 A 10 10 0 0 1 90 100 " stroke="red" stroke-width="4"/> </svg> Draw it out on graph paper and you should be able to see what's going on. The Inkscape code seems to use the fact that cubic beziers are pretty good approximations to most curves including elliptical arcs. But since <path> already owns elliptical arcs, why do it that way when you can do it a better and easier way? The only hassle with elliptical arcs is that there are a few different ones between two given points as the illustration in the book points out. hope this helps David ----- Original Message ----- From: fi...@rocketmail.com To: svg-developers@yahoogroups.com Sent: Wednesday, October 20, 2010 7:46 AM Subject: [svg-developers] How to convert svg rect to path Anybody can help me with svg rect convertion to svg path? I need know the steps to convert rect parameters to path commands. Example, I have: rect: height 2.8569181 width 90.898613 x 20.280216 y 838.27399 rx 0.9670065 ry 1.2499017 Inkscape make this: m 21.247223,838.27399 88.964597,0 c 0.53572,0 0.96701,0.55745 0.96701,1.2499 l 0,0.35711 c 0,0.69245 -0.43129,1.2499 -0.96701,1.2499 l -88.964597,0 c -0.535722,0 -0.967007,-0.55745 -0.967007,-1.2499 l 0,-0.35711 c 0,-0.69245 0.431285,-1.2499 0.967007,-1.2499 z My problem is with c command control points. Best regards. [Non-text portions of this message have been removed] ------------------------------------ ----- To unsubscribe send a message to: svg-developers-unsubscr...@yahoogroups.com -or- visit http://groups.yahoo.com/group/svg-developers and click "edit my membership" ----Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/svg-developers/join (Yahoo! ID required) <*> To change settings via email: svg-developers-dig...@yahoogroups.com svg-developers-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: svg-developers-unsubscr...@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
