Not in the sense of an actual continuation? On 10/30/06, Roger Critchlow <[EMAIL PROTECTED]> wrote: > Actually, there's a whole chunk of the SVG spec devoted to animation > without any scripting at all. I haven't gotten into that yet. > There's a lot of it being used on cell phones using the SVGTiny > profile which doesn't have any scripting. > > Animation with javascript all depends on how dependably your > window.setTimeout() method is behaving, which depends on everything > else running in your browser and on your machine. I've seen the moons > calendar hiccup partway through more than a few times. > > The "animation" is a side effect of avoiding the Firefox "Some script > is taking too long to finish, shall I kill it?" dialog box. I > compute a month and then pass the continuation to setTimeout() with a > 5ms delay. So most of the interframe timing happens in the number > crunching to compute the month. > > -- rec -- > > On 10/30/06, Giles Bowkett <[EMAIL PROTECTED]> wrote: > > that's awesome! > > > > can SVG be animated dependably in JavaScript with that kind of > > sophistication? > > > > On 10/30/06, Roger Critchlow <[EMAIL PROTECTED]> wrote: > > > I've just finished reprogramming a lunar calendar that was my first > > > big programming project as an undergraduate back in the 70's. Back > > > then it was FORTRAN on punched cards driving a Calcomp drum plotter. > > > The new version (http://elf.org/moons) is programmed in javascript and > > > produces an SVG graphic by populating an empty document with DOM > > > calls. > > > > > > It's a demonstration of how much you can get away with inside a > > > browser these days. The whole calendar runs and renders inside > > > Mozilla/Firefox with no plug-ins requred at all. IE needs the Adobe > > > SVG viewer for the time being, but I hear that integrated SVG support > > > is expected around IE7.2. I haven't had a chance to try Safari. But > > > I downloaded Opera and it worked there, no problem at all. > > > > > > This example is a really classical computation and a very simple > > > graphic, but there are lots of possible extensions to this basic > > > framework: you can add interactivity by hanging event handlers on the > > > graphics; you can mutate the graphic through the DOM at any time; you > > > can layer in additional information asynchronously with background > > > XMLHTTPRequest's; you can get a lot of additional graphic effects out > > > of SVG; and so on. > > > > > > I think SVG+javascript is going to be a fairly useful platform for > > > delivering information graphics and client side number crunching on > > > the web. > > > > > > -- rec -- > > > > > > ============================================================ > > > FRIAM Applied Complexity Group listserv > > > Meets Fridays 9a-11:30 at cafe at St. John's College > > > lectures, archives, unsubscribe, maps at http://www.friam.org > > > > > > > > > -- > > Giles Bowkett > > http://www.gilesgoatboy.org > > > > ============================================================ > > FRIAM Applied Complexity Group listserv > > Meets Fridays 9a-11:30 at cafe at St. John's College > > lectures, archives, unsubscribe, maps at http://www.friam.org > > > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > lectures, archives, unsubscribe, maps at http://www.friam.org >
-- Giles Bowkett http://www.gilesgoatboy.org ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
