Here is a simple description ..
<svg xmlns="http://www.w3.org/2000/svg";
xmlns:xlink="http://www.w3.org/1999/xlink";
onload="loadsvgcaller(evt);">
<script type="text/ecmascript"> <![CDATA[
function loadsvgcaller(evt) {
window.setTimeout("updateVisualization();",1000);
}
function updateVisualization(evt)
{
//some code for inits etc...
itemLabelTextView1 = templateText.cloneNode(true);
itemLabelTextPath1 = templateTextPath.cloneNode(true);
itemLabelTextPath1.appendChild(document.createTextNode('someText'));
itemLabelTextView1.appendChild(itemLabelTextPath1);
var bbox = itemLabelTextView1.getBBox();
var bboxWidth = bbox.width;
var bboxHeight = height;
// bbox is null even with the timeout trick..
//further use bbox width, height to manipulate element positions
};
]]> </script>
<text font-family="Verdana" fill="blue" id='templateText'>
<textPath xlink:href="#templateTextPathDef"
id='templateTextPath'></textPath>
</text>
</svg>
The bbox remained null with the timeout approach.
Thanks,
Nirmesh.
-----Original Message-----
From: Helder Magalhães [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 20, 2008 6:36 AM
To: [email protected]
Subject: Re: bbox on text node in onload javascript
> I am unable to get the bbox from text node in javascript function call at
> onload of svg element.
Using a onload event hander the SVG should work: the SVG document is
already displayed. There are a number of known issues with some SVG
implementations (such as Firefox [1], at least for version 2) while
attempting to compute bounding boxes before the SVG document is
displayed (for example, in a script which will be immediately
evaluated when available, before the document is actually displayed).
Which Batik version are you using? Can you attach a reduced test case
for your experienced behavior? Does it still occur if you use the
"setTimeout" trick [1]? If not, then the SVG wiki page should be
updated in order to state that the "setTimeout" trick also applies to
Batik version X (the one you are using).
Hope this helps,
Helder Magalhães
[1] http://wiki.svg.org/GetBBox#Firefox_Support
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