Created
October 13, 2014 23:47
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D3 Line clock
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <style type="text/css"> | |
| rect.overlay { | |
| fill: #2279bd; | |
| } | |
| rect.base{ | |
| fill: #f3f3f3; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| var w = 960, //1920 | |
| h = w*0.5625, // 16:9 aspect ratio | |
| lh = w/50, //line height | |
| y = d3.scale.ordinal().domain(d3.range(11)).rangePoints([0, h], 0), | |
| r = 2 * Math.PI | |
| var fields = [ | |
| {name: "hours", value: 0, size: 12}, | |
| {name: "minutes", value: 0, size: 60}, | |
| {name: "seconds", value: 0, size: 60} | |
| ]; | |
| var arc = d3.svg.arc() | |
| .innerRadius(w/12) | |
| .outerRadius(w/12*1.15) | |
| .startAngle(0) | |
| .endAngle(function(d) { | |
| return (d.value / d.size) * r; | |
| }); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", w) | |
| .attr("height", h) | |
| .append("g"); | |
| var base = svg.selectAll(".base") | |
| .data(fields); | |
| base.enter().append("rect") | |
| .attr("transform", function(d,i){return "translate( 0," + (y(i+4)-(lh/2)) + ")"}) | |
| .attr("class",'base') | |
| .attr("width",w) | |
| .attr("height", lh) | |
| setInterval(function() { | |
| var now = new Date(); | |
| fields[0].previous = fields[0].value; fields[0].value = changeto12(now.getHours()); | |
| fields[1].previous = fields[1].value; fields[1].value = now.getMinutes(); | |
| fields[2].previous = fields[2].value; fields[2].value = now.getSeconds(); | |
| var path = svg.selectAll(".overlay") | |
| .data(fields); | |
| path.enter().append("rect") | |
| .attr("transform", function(d,i){return "translate( 0," + (y(i+4)-(lh/2)) + ")"}) | |
| .attr("class",'overlay') | |
| .attr("width",0) | |
| .attr("height", lh) | |
| .transition() | |
| .duration(1000) | |
| .attr("width", function(d,i){return w*(d.value/d.size)}) | |
| path.transition() | |
| .duration(1000) | |
| .attr("width", function(d,i){ | |
| if(d.value === 0) {d.value = d.size} | |
| return w*(d.value/d.size) | |
| }); | |
| }, 1000); | |
| function changeto12(num){ | |
| if(num>12){return num-12;} | |
| return num | |
| } | |
| </script> | |
| </body> | |
| </html> |
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