Hello SVGers,
The getBBox method (by design) doesn't take into account clipping. Is there
a method that does, or failing that, has anyone written some javascript to
do it?
For example:
<svg id="foo" x="0" y="0" width="100" height="100">
<rect width="200" height="200" fill="red" stroke="black"/>
</svg>
document.getElementById("foo").getBBox() would return {x:0, y:0, width:200,
height:200}.
I need {x:0, y:0, width:100, height:100}.
(Some context: I'm writing a scrollbar widget - yes, I know, I know - and
currently I can't put a scrollable area inside another scrollable area,
because getBBox ignores my attempts at clipping.)
I started trying to write something myself, but I'm getting bogged down
with the various matrix transforms you need to do to make this work
generally.
I figure you have to rewrite getBBox() in javascript, but at each stage
checking if there's an svg element, or a clip-path, etc. and use
combinations of getBBox(), getScreenCTM(), getTranformToElement(), etc.
Have any of you done this or seen it done?
Cheers,
Andrew Shellshear.
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