Hi, Mark-
I don't use Batik very often, so forgive me if I go astray. However, I
believe that Batik want you to use "setAttributeNS" rather than
"setAttribute." I think that
el.setAttributeNS(null, "filter", "url(#myfilter)")
would work... or perhaps
el.style.setProperty("filter", "url(#myfilter)")
is better.
In any case, I have a simple drawing program that allows the user to create
and apply filters, so dynamic use of filters is definitely possible.
BTW, since a filter is not rendered on its own, you don't necessarily have
to put it into <defs>, though I always do. However, make sure you are
inserting it into the SVG, and not just the document. Something like:
<defs id='filterdefs'></defs>
[...]
var MyFilter = document.createElement('filter');
...
document.getElementById('filterdefs').appendChild(MyFilter);
should do the trick.
HTH-
-Doug
> -----Original Message-----
> From: Mark Vidov [mailto:[EMAIL PROTECTED]]
> Sent: Friday, June 21, 2002 2:17 PM
> To: [EMAIL PROTECTED]
> Subject: defining a filter
>
>
> I'm probably missing an easy way to do this but I would like to add a new
> filter to an existing svg document so it can be used to
> dynamically change
> elements.
>
> I attempted to add the filter to the <defs> but doing so in response to
> documentLoadingComplete seems to be too late. Is there another way to do
> this? Should I be hooking into the building of the DOM tree at
> some point?
> Or is there a programmatic way to modify the defs or define the filter?
> Thanks for any advice.
>
>
> eg
> insert this into <defs>:
> <filter id="myfilter" .../>
> modify an element in code:
> el.setAttribute("filter", "url(#myfilter)")
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