Hi Abreu,
"Charles Abreu" <[EMAIL PROTECTED]> wrote on 07/12/2006 09:29:22 AM:
> Element rectElement =
svgCanvas.getSVGDocument().getElementById("myRectElement");
> SVGRect bbox = SVGLocatableSupport.getBBox(rectElement);
>
> The first line returns the expected element, but I have no idea why the
second
> line is aways returning null, no matter if I try several types of
elements.
> Are there any especial ways or situations where the getBBox() will not
work correctly?
It sounds like you need to boot the SVG DOM:
http://wiki.apache.org/xmlgraphics-batik/BootSvgAndCssDom
> Anyway, do you have one piece of code to illustrate your suggestion of
> combining getBBox() with getScreenCMT() to get the screen location of
the element?
Unfortunately nothing really handy. Suffice it to say you just need
to map the corner points of the BBox through the matrix returned
by getScreenCTM to get the corner's location in screen pixels.
> On 7/11/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Hi Charles,
>
> You might also want to look at the standard SVG DOM.
> Which includes a method 'getBBox()' that returns the bounding
> box of the element in the element's user coordinate system.
> If this is paired with 'getScreenCTM()' you can fairly easily calculate
> the location on the screen of any element in the DOM (and these
> are standard SVG as opposed to Batik specific).
>
> "Charles Abreu" <[EMAIL PROTECTED] > wrote on 07/10/2006 05:13:27
PM:
>
> > What I want to do is to zoom in and to center the SVGCanvas on to an
> arbitrary
> > graphics element. Looking at the svg browser code, I saw a code
fragment
> where
> > the zooming and centering task is done for text search, but it works
> begining
> > from a selected GraphicsNode object. In that case, a GVTTreeWalker was
> used to
> > walk down the tree looking for TextNode's whose text property match
the
> user
> > entered string. In my case, the use will not provide any input. An
> internal
> > event in my system will trigger a search for an specific element in
the
> DOM
> > tree and I need to highlight it when it is found.
> >
> > Can somebody help?
> >
> > Thanks in advance.
> >
> > Charles
>
> > On 7/10/06, Charles Abreu <[EMAIL PROTECTED] > wrote:
> > Hi,
> >
> > How I obtain a GraphicsNode from an Element object?
> >
> > Thanks,
> >
> > Charles
> >
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
