[FRIAM] Moons calendar in javascript and svg

[Giles Bowkett]

that's awesome!

can SVG be animated dependably in JavaScript with that kind of sophistication?

On 10/30/06, Roger Critchlow <rec at elf.org> 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 --
>
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-- 
Giles Bowkett
http://www.gilesgoatboy.org