Is it possible to use SVG to animate the d
attribute of <path>
?
I can draw both a diamond and a circle as a path made of eight bezier curves:
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<script>
jQuery(function($){
var a = 50;
var draw = function(b, c, d, e, f){
return [
'M', a, 0,
'C', b, c, ',', d, e, ',', f, f,
'C', e, d, ',', c, b, ',', 0, a,
'C', -c, b, ',', -e, d, ',', -f, f,
'C', -d, e, ',', -b, c, ',', -a, 0,
'C', -b, -c, ',', -d, -e, ',', -f, -f,
'C', -e, -d, ',', -c, -b, ',', 0, -a,
'C', c, -b, ',', e, -d, ',', f, -f,
'C', d, -e, ',', b, -c, ',', a, 0,
].join(' ');
};
$('#diamond').attr({ d: draw( 5*a/6, a/6, 2*a/3, a/3, a/2 ) });
$('#circle' ).attr({ d: draw( a, a*Math.PI/12, (2 + 1/Math.sqrt(2))*a/3, a*Math.PI/6, a/Math.sqrt(2) ) });
});
</script>
</head>
<body>
<svg width="200" height="200">
<g transform="translate(100,100)">
<path id=diamond fill="blue" stroke="black"/>
</g>
</svg>
<svg width="200" height="200">
<g transform="translate(100,100)">
<path id=circle fill="red" stroke="black"/>
</g>
</body>
</html>
I'd like to animate the transformation from one to the other.
I could simulate this in javascript (just by linearly interpolating the bezier curve parameters at certain times), but I want to know if there's a way to do it with SVG.
(The circle and diamond are just an example - in reality I'd like to transition between two arbitrary solids made of the same number of bezier curves).