--- In [email protected], T Rowley <[EMAIL PROTECTED]> wrote:
>
> That will have poor performance in Firefox due to they way we
currently
> implement <use>, which is to do an anonymous clone of the indicated
> subtree at the point of the <use>. Any modifications to the
original
> content cause us to reclone the content. As you're setting an
attribute
> on each <rect> inside the original content, we end up doing a lot
of
> work that other implementations might avoid.
>
Thanks for the clarification. I spent a lot of time diagnosing this
one.
I amended my code by changing the href attribute before and after the
loop. (I had to add an id attribute to the <use> element with a
value of "useit".) This seems to alleviate the performance lag.
Simon
i.e.
var u = document.getElementById('useit');
u.setAttributeNS
("http://www.w3.org/1999/xlink","xlink:href","#group1";);
while(elm=colR.item(i++)){
elm.setAttributeNS(null,'y',elm.getAttributeNS
('http://www.foo.com','y2'));
}
u.setAttributeNS
("http://www.w3.org/1999/xlink","xlink:href","#group";);
}
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