This unusual clock in polar coordinates is based on a Flash screensaver by pixelbreaker. See also the earlier Protovis version, and two newer variations.
Last active
June 9, 2024 02:00
-
-
Save mbostock/1096355 to your computer and use it in GitHub Desktop.
Polar Clock
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| license: gpl-3.0 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| background: #222; | |
| margin: auto; | |
| width: 960px; | |
| } | |
| .arc-text { | |
| font: 16px sans-serif; | |
| } | |
| .arc-center { | |
| fill: none; | |
| } | |
| #credit { | |
| position: absolute; | |
| font: 10px sans-serif; | |
| right: 10px; | |
| bottom: 10px; | |
| color: #ddd; | |
| } | |
| #credit a { | |
| color: inherit; | |
| } | |
| </style> | |
| <div id="credit">Inspired by <a href="http://blog.pixelbreaker.com/polarclock/">pixelbreaker</a>.</div> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 800, | |
| radius = Math.min(width, height) / 1.9, | |
| spacing = .09; | |
| var formatSecond = d3.time.format("%-S seconds"), | |
| formatMinute = d3.time.format("%-M minutes"), | |
| formatHour = d3.time.format("%-H hours"), | |
| formatDay = d3.time.format("%A"), | |
| formatDate = function(d) { d = d.getDate(); switch (10 <= d && d <= 19 ? 10 : d % 10) { case 1: d += "st"; break; case 2: d += "nd"; break; case 3: d += "rd"; break; default: d += "th"; break; } return d; }, | |
| formatMonth = d3.time.format("%B"); | |
| var color = d3.scale.linear() | |
| .range(["hsl(-180,60%,50%)", "hsl(180,60%,50%)"]) | |
| .interpolate(function(a, b) { var i = d3.interpolateString(a, b); return function(t) { return d3.hsl(i(t)); }; }); | |
| var arcBody = d3.svg.arc() | |
| .startAngle(0) | |
| .endAngle(function(d) { return d.value * 2 * Math.PI; }) | |
| .innerRadius(function(d) { return d.index * radius; }) | |
| .outerRadius(function(d) { return (d.index + spacing) * radius; }) | |
| .cornerRadius(6); | |
| var arcCenter = d3.svg.arc() | |
| .startAngle(0) | |
| .endAngle(function(d) { return d.value * 2 * Math.PI; }) | |
| .innerRadius(function(d) { return (d.index + spacing / 2) * radius; }) | |
| .outerRadius(function(d) { return (d.index + spacing / 2) * radius; }); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| var field = svg.selectAll("g") | |
| .data(fields) | |
| .enter().append("g"); | |
| field.append("path") | |
| .attr("class", "arc-body"); | |
| field.append("path") | |
| .attr("id", function(d, i) { return "arc-center-" + i; }) | |
| .attr("class", "arc-center"); | |
| field.append("text") | |
| .attr("dy", ".35em") | |
| .attr("dx", ".75em") | |
| .style("text-anchor", "start") | |
| .append("textPath") | |
| .attr("startOffset", "50%") | |
| .attr("class", "arc-text") | |
| .attr("xlink:href", function(d, i) { return "#arc-center-" + i; }); | |
| tick(); | |
| d3.select(self.frameElement).style("height", height + "px"); | |
| function tick() { | |
| if (!document.hidden) field | |
| .each(function(d) { this._value = d.value; }) | |
| .data(fields) | |
| .each(function(d) { d.previousValue = this._value; }) | |
| .transition() | |
| .ease("elastic") | |
| .duration(500) | |
| .each(fieldTransition); | |
| setTimeout(tick, 1000 - Date.now() % 1000); | |
| } | |
| function fieldTransition() { | |
| var field = d3.select(this).transition(); | |
| field.select(".arc-body") | |
| .attrTween("d", arcTween(arcBody)) | |
| .style("fill", function(d) { return color(d.value); }); | |
| field.select(".arc-center") | |
| .attrTween("d", arcTween(arcCenter)); | |
| field.select(".arc-text") | |
| .text(function(d) { return d.text; }); | |
| } | |
| function arcTween(arc) { | |
| return function(d) { | |
| var i = d3.interpolateNumber(d.previousValue, d.value); | |
| return function(t) { | |
| d.value = i(t); | |
| return arc(d); | |
| }; | |
| }; | |
| } | |
| function fields() { | |
| var now = new Date; | |
| return [ | |
| {index: .7, text: formatSecond(now), value: now.getSeconds() / 60}, | |
| {index: .6, text: formatMinute(now), value: now.getMinutes() / 60}, | |
| {index: .5, text: formatHour(now), value: now.getHours() / 24}, | |
| {index: .3, text: formatDay(now), value: now.getDay() / 7}, | |
| {index: .2, text: formatDate(now), value: (now.getDate() - 1) / (32 - new Date(now.getYear(), now.getMonth(), 32).getDate())}, | |
| {index: .1, text: formatMonth(now), value: now.getMonth() / 12} | |
| ]; | |
| } | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
i like it more if the fastest arc is the smallest and the slowest is the biggest. you can see it here