SVG clipping using javascript

Question

We are trying to use clippath for polyline using javascript. We tried writing a sample HTML code which worked fine:

<svg xmlns="http://www.w3.org/2000/svg" version="1.1" id="parent">
    <clippath id="cut-off-bottom">
        <rect x="0" y="0" width="200" height="100" />
    </clippath>
    <circle cx="100" cy="100" r="100" clip-path="url(#cut-off-bottom)" />
</svg>

This works absolutely fine.

But when we try to generate the same code using javascript it doesn't work:

_svgNS = 'http://www.w3.org/2000/svg';
parent = document.getElementById('parent');

circle = document.createElementNS(_svgNS, 'circle');
circle.setAttributeNS(null, 'cx', '100');
circle.setAttributeNS(null, 'cy', '100');
circle.setAttributeNS(null, 'r', '100');

clippath = document.createElementNS(_svgNS, 'clippath');
clippath.setAttributeNS(null, 'id', 'clip');

r = document.createElementNS(_svgNS, 'rect');
r.setAttributeNS(null, 'x', '0');
r.setAttributeNS(null, 'y', '0');
r.setAttributeNS(null, 'width', '200');
r.setAttributeNS(null, 'height', '100');


clippath.appendChild(r);

circle.setAttributeNS(_svgNS, 'clip-path', 'url(#clip)');
parent.appendChild(clippath);
parent.appendChild(circle);

Can anyone please help us find the issue with the above code...

Thanks in advance.

Answer 1

After a while of fiddling it turns out that SVG is very case-sensitive and the clippath element needs to be a clipPath element.

See working fiddle: http://jsfiddle.net/F4mq9/2/

Very strange that the static sample worked however.