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Polar clock
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| #clock { | |
| position: relative; | |
| background: #222; | |
| width: 960px; | |
| height: 800px; | |
| } | |
| #clock div { | |
| position: absolute; | |
| right: 4px; | |
| bottom: 4px; | |
| color: #ddd; | |
| font: 10px sans-serif; | |
| } | |
| #clock a { | |
| color: #fff; | |
| font-weight: bold; | |
| } | |
| text { | |
| font: 10px sans-serif; | |
| } | |
| </style> | |
| <div id="clock"> | |
| <div> | |
| Inspired by <a href="http://blog.pixelbreaker.com/polarclock/">pixelbreaker</a>. | |
| </div> | |
| </div> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| // Based on http://vis.stanford.edu/protovis/ex/clock.html | |
| // Based on http://blog.pixelbreaker.com/polarclock | |
| var w = 960, | |
| h = 800, | |
| r = Math.min(w, h) / 1.9, | |
| s = .09, | |
| fsec = d3.time.format("%S s"), | |
| fmin = d3.time.format("%M m"), | |
| fhou = d3.time.format("%H h"), | |
| fwee = d3.time.format("%a"), | |
| fdat = d3.time.format("%d d"), | |
| fmon = d3.time.format("%b"); | |
| var fill = d3.scale.linear() | |
| .range(["hsl(-180,50%,50%)", "hsl(180,50%,50%)"]) | |
| .interpolate(interpolateHsl); | |
| var arc = d3.svg.arc() | |
| .startAngle(0) | |
| .endAngle(function(d) { return d.value * 2 * Math.PI; }) | |
| .innerRadius(function(d) { return d.index * r; }) | |
| .outerRadius(function(d) { return (d.index + s) * r; }); | |
| var svg = d3.select("#clock").append("svg") | |
| .attr("width", w) | |
| .attr("height", h) | |
| .append("g") | |
| .attr("transform", "translate(" + w / 2 + "," + h / 2 + ")"); | |
| var g = svg.selectAll("g") | |
| .data(fields) | |
| .enter().append("g"); | |
| g.append("path") | |
| .style("fill", function(d) { return fill(d.value); }) | |
| .attr("d", arc); | |
| g.append("text") | |
| .attr("text-anchor", "middle") | |
| .attr("dy", "1em") | |
| .text(function(d) { return d.text; }); | |
| // Update arcs. | |
| d3.timer(function() { | |
| var g = svg.selectAll("g") | |
| .data(fields); | |
| g.select("path") | |
| .style("fill", function(d) { return fill(d.value); }) | |
| .attr("d", arc); | |
| g.select("text") | |
| .attr("dy", function(d) { return d.value < .5 ? "-.5em" : "1em"; }) | |
| .attr("transform", function(d) { | |
| return "rotate(" + 360 * d.value + ")" | |
| + "translate(0," + -(d.index + s / 2) * r + ")" | |
| + "rotate(" + (d.value < .5 ? -90 : 90) + ")" | |
| }) | |
| .text(function(d) { return d.text; }); | |
| }); | |
| d3.select(self.frameElement).style("height", h + "px"); | |
| // Generate the fields for the current date/time. | |
| function fields() { | |
| var d = new Date; | |
| function days() { | |
| return 32 - new Date(d.getYear(), d.getMonth(), 32).getDate(); | |
| } | |
| var second = (d.getSeconds() + d.getMilliseconds() / 1000) / 60, | |
| minute = (d.getMinutes() + second) / 60, | |
| hour = (d.getHours() + minute) / 24, | |
| weekday = (d.getDay() + hour) / 7, | |
| date = (d.getDate() - 1 + hour) / days(), | |
| month = (d.getMonth() + date) / 12; | |
| return [ | |
| {value: second, index: .7, text: fsec(d)}, | |
| {value: minute, index: .6, text: fmin(d)}, | |
| {value: hour, index: .5, text: fhou(d)}, | |
| {value: weekday, index: .3, text: fwee(d)}, | |
| {value: date, index: .2, text: fdat(d)}, | |
| {value: month, index: .1, text: fmon(d)}, | |
| ]; | |
| } | |
| // To avoid shortest-path interpolation. | |
| function interpolateHsl(a, b) { | |
| var i = d3.interpolateString(a, b); | |
| return function(t) { | |
| return d3.hsl(i(t)); | |
| }; | |
| } | |
| </script> |
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