Animated woofer. The frequency is so low you probably can't even hear it. Show code
<script type="text/paperscript" canvas="canvas-0011">
var wooferSize = view.size.height * 0.4;
var outerRing = new Path.Circle({
center: view.center,
radius: wooferSize *= 1.1,
fillColor: '#111111'
});
var cone = new Path.Circle({
center: view.center,
radius: wooferSize * 0.97
});
cone.fillColor = {
gradient: {
stops: [['#1d1d1d', 0.3 ], ['#444444', 1]],
radial: true
},
origin: cone.bounds.topCenter + [0, 30],
destination: cone.bounds.rightCenter
};
var centerRing = new Path.Circle({
center: view.center,
radius: wooferSize / 3
});
centerRing.fillColor = {
gradient: {
stops: [['#444444', 0.3 ], ['#111111', 1]],
radial: true
},
origin: centerRing.bounds.topCenter + [0, 30],
destination: centerRing.bounds.rightCenter
};
var center = new Path.Circle({
center: view.center,
radius: wooferSize / 3.2
});
center.fillColor = {
gradient: {
stops: [['#aaaaaa', 0.1], ['#3f3f3f', 0.5], ['#222222', 1]],
radial: true
},
origin: center.bounds.topCenter + [0, wooferSize * 0.1],
destination: center.bounds.rightCenter
};
// Build the woofer group
var woofer = new Group(cone, centerRing, center);
var wooferBounds = woofer.bounds;
var frameCount = 0;
function onFrame(event) {
// 60 fps, so hit a bass note every 2/3 of a
// second or 90 bpm
if (frameCount++ == 40) {
woofer.scale(1.04);
frameCount = 0;
}
else if (event.count % 2) {
woofer.fitBounds(wooferBounds);
}
else {
woofer.scale(1.02, woofer.center);
}
}
</script>
<canvas id="canvas-0011" height="250"></canvas>