Hi Justin,
jtd <[EMAIL PROTECTED]> wrote on 04/25/2008 08:03:48 AM:
> Thank Helder, that's very helpful, except getBBox doesn't seem to be an
> available method.
>
> Here's a snippet of my code (this is in Java, using Batik)
>
> NodeList nl = document.getElementsByTagName("path");
This probably won't work since the Batik DOM is namespace
aware. So this should be:
NodeList nl = document.getElementBtTagNameNS
(SVGConstants.SVG_NAMESPACE_URI, "path");
> for(int i = 1; i < nl.getLength(); i++){
> Element elem = (Element) nl.item(i);
getBBox is defined on the SVGLocatable interface.
All of the SVG shape elements (and a number of other elements)
implement that interface. You should be able to simply replace
'Element' with 'SVGLocatable' (or you can go to the SVGPathElement
interface which extends locatable).
> I thought I'd be able to call getBBox on the Element here. Sorry for the
> simple question, but I'm new to this and I can't seem to get my head
around
> the Batik docs yet.
I should probably also warn you that you need to make sure you have
booted the
SVG DOM in Batik before you try and call that:
http://wiki.apache.org/xmlgraphics-batik/BootSvgAndCssDom
> Helder Magalhães wrote:
> >
> >> I've been playing around with a little demo program I found
somewhere.
> >> I'm
> >> able to go load an SVG document and script some animations by
travers,
> >> ing the
> >> DOM and translating, rotating. I'd like to be able to move the
elements
> >> to
> >> specific locations by setting x and y coordinates, but the elements
are
> >> all
> >> Paths. How do I get attributes like position, bounding box from a
Path
> >> element?
> > Yes, bounding box [1] is probably what you are looking for.
> >
> >> I am able only able to translate relative to their current position
on
> >> the
> >> canvas, and I'm not seeing how to access that position.
> > Using bonding box you can obtain the initial position which may then
> > be used during calculation of final position. In case you simply want
> > to perform transformations relative to current position, transform [2]
> > (translate, for example) seems more appropriate.
> >
> > Finally, if asking general SVG questions not directly related with
> > Batik, I advise you try the SVG developers group [3] instead for more
> > visibility.
> >
> > Hope this helps,
> >
> > Helder Magalhães
> >
> > [1] http://wiki.svg.org/GetBBox
> > [2] http://www.w3.org/TR/SVG/coords.html#TransformAttribute
> > [3] http://tech.groups.yahoo.com/group/svg-developers/
> >
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> >
>
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