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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <body style="background-color:#000000"> | |
| <script type="text/javascript" src="//d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var width = 500, | |
| height = 500; | |
| var nodes = d3.range(width/2).map(function() { return {radius: Math.random()+ 1.0, angle: Math.random()*Math.PI*2} }); | |
| nodes.sort(function(a,b){ return a.angle - b.angle;}) | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var margin = 20; | |
| var circles = svg.selectAll('circle') | |
| .data(nodes) | |
| .enter() | |
| .append("circle") | |
| .attr("cx",function(d){return width/2}) | |
| .attr("cy",function(d){return height/2}) | |
| .attr("r",function(d){ return d.radius}) | |
| .style("fill","white") | |
| .each(warp) | |
| setTimeout(function(){ | |
| circles.transition() | |
| .attr("cx",function(d){return width/2 + (width/2-margin) * Math.cos(d.angle)}) | |
| .attr("cy",function(d){return height/2 + (width/2-margin) * Math.sin(d.angle)}) | |
| wave() | |
| setInterval(wave,Math.PI*1000); | |
| },4000) | |
| function wave(){ | |
| circles.transition() | |
| .delay(function(d,i){return d.angle * 1000;}) | |
| .duration(250) | |
| .attr("cx",function(d){return width/2 + (width/2-2*margin) * Math.cos(d.angle)}) | |
| .attr("cy",function(d){return height/2 + (width/2-2*margin) * Math.sin(d.angle)}) | |
| .transition() | |
| .duration(250) | |
| .attr("cx",function(d){return width/2 + (width/2) * Math.cos(d.angle)}) | |
| .attr("cy",function(d){return height/2 + (width/2) * Math.sin(d.angle)}) | |
| .transition() | |
| .duration(250) | |
| .attr("cx",function(d){return width/2 + (width/2-margin) * Math.cos(d.angle)}) | |
| .attr("cy",function(d){return height/2 + (width/2-margin) * Math.sin(d.angle)}) | |
| } | |
| function warp() { | |
| var circle = d3.select(this); | |
| (function repeat() { | |
| circle = circle.transition() | |
| .duration(function(d){ return Math.random() * 1000 + 1000}) | |
| .attr("",function(d){ d.newR = (width/2-2*margin + Math.random() * 25) }) | |
| .attr("cx",function(d){return width/2 + d.newR * Math.cos(d.angle)}) | |
| .attr("cy",function(d){return height/2 + d.newR * Math.sin(d.angle)}) | |
| .each("end", repeat); | |
| })(); | |
| } | |
| </script> |
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