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@mbostock /.block
Last active Jan 23, 2018

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Arc Clock
license: gpl-3.0
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.path--background {
fill: none;
stroke: #000;
stroke-width: 2px;
}
.label {
font: 24px sans-serif;
text-anchor: middle;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var width = 960,
height = 500;
var fields = [
{value: 24, size: 24, label: "h", update: function(date) { return date.getHours(); }},
{value: 60, size: 60, label: "m", update: function(date) { return date.getMinutes(); }},
{value: 60, size: 60, label: "s", update: function(date) { return date.getSeconds(); }}
];
var arc = d3.svg.arc()
.innerRadius(width / 6.5 - 60)
.outerRadius(width / 6.5 - 5)
.startAngle(0)
.endAngle(function(d) { return (d.value / d.size) * 2 * Math.PI; });
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var field = svg.selectAll(".field")
.data(fields)
.enter().append("g")
.attr("transform", function(d, i) { return "translate(" + (i * 2 + 1.25) / 6.5 * width + "," + height / 2 + ")"; })
.attr("class", "field");
field.append("path")
.attr("class", "path path--background")
.attr("d", arc);
var path = field.append("path")
.attr("class", "path path--foreground");
var label = field.append("text")
.attr("class", "label")
.attr("dy", ".35em");
(function update() {
var now = new Date();
field
.each(function(d) { d.previous = d.value, d.value = d.update(now); });
path.transition()
.ease("elastic")
.duration(750)
.attrTween("d", arcTween);
label
.text(function(d) { return d.value + d.label; });
setTimeout(update, 1000 - (now % 1000));
})();
function arcTween(b) {
var i = d3.interpolate({value: b.previous}, b);
return function(t) {
return arc(i(t));
};
}
</script>
@reshma21menon

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reshma21menon Jan 23, 2018

Sir, can we embed all the three circles into one circle? Like one inside the other. My teacher asked me to do like this.

reshma21menon commented Jan 23, 2018

Sir, can we embed all the three circles into one circle? Like one inside the other. My teacher asked me to do like this.

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