Just playing with random shapes and data
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August 29, 2015 14:08
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d3 | random shapes
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>D3 | Random circles and squares</title> | |
| <meta name="author" content="eesur.com"> | |
| <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.4.2/d3.js"></script> | |
| <style type="text/css"> | |
| html, body, main { | |
| height: 100%; | |
| background-color: #130C0E; | |
| padding: 0; | |
| margin: 0; | |
| -webkit-box-sizing: border-box; | |
| -moz-box-sizing: border-box; | |
| box-sizing: border-box; | |
| } | |
| svg { | |
| width: 100%; | |
| height: 99%; /* gets rid of scrollbar */ | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| // create data | |
| var data = []; | |
| for (var i=0; i < 108; i++) { | |
| data.push(i); | |
| } | |
| // Scale for radius | |
| var xr = d3.scale | |
| .linear() | |
| .domain([0, 108]) | |
| .range([0, 27]); | |
| // Scale for random position | |
| var randomPosition = function(d) { | |
| return Math.random() * 1024; | |
| } | |
| var tcColours = ['#FDBB30', '#EE3124', '#EC008C', '#F47521', '#7AC143', '#00B0DD']; | |
| var randomTcColour = function() { | |
| return Math.floor(Math.random() * tcColours.length); | |
| }; | |
| // SVG viewport | |
| var svg = d3.select('body') | |
| .append('svg') | |
| .attr('width', 1024) | |
| .attr('height', 512); | |
| var update = function() { | |
| var baseCircle = svg.selectAll('circle'); | |
| var baseRect = svg.selectAll('rect'); | |
| // Bind data | |
| baseCircle = baseCircle.data(data); | |
| baseRect = baseRect.data(data); | |
| // set the rects | |
| baseRect.transition() | |
| .duration(200) | |
| .attr('width', xr) | |
| .attr('height', xr) | |
| .attr('x', randomPosition) | |
| .attr('y', randomPosition) | |
| .style('fill', tcColours[randomTcColour()]); | |
| baseRect.enter() | |
| .append('rect') | |
| .attr('width', xr) | |
| .attr('height', xr) | |
| .attr('x', randomPosition) | |
| .attr('y', randomPosition) | |
| .style('fill', tcColours[randomTcColour()]); | |
| // set the circles | |
| baseCircle.transition() | |
| .duration(250) | |
| .attr('r', xr) | |
| .attr('cx', randomPosition) | |
| .attr('cy', randomPosition) | |
| .attr('fill', "none") | |
| .attr("stroke-width", 4) | |
| .style('stroke', tcColours[randomTcColour()]); | |
| baseCircle.enter() | |
| .append('circle') | |
| .attr('r', xr) | |
| .attr('cx', randomPosition) | |
| .attr('cy', randomPosition) | |
| .attr('fill', "none") | |
| .attr("stroke-width", 4) | |
| .style('stroke', tcColours[randomTcColour()]); | |
| } | |
| setInterval(function() { | |
| update(); | |
| }, 512); | |
| </script> | |
| </body> | |
| </html> |
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