Rev | Line | |
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[76] | 1 | <!DOCTYPE html> |
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| 2 | <html> |
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| 3 | <head> |
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| 4 | <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> |
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| 5 | <title>Moiré Patterns</title> |
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| 6 | <script type="text/javascript" src="../../d3.js"></script> |
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| 7 | <style type="text/css"> |
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| 8 | |
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| 9 | circle { |
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| 10 | fill: none; |
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| 11 | stroke: #000; |
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| 12 | } |
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| 13 | |
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| 14 | </style> |
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| 15 | </head> |
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| 16 | <body> |
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| 17 | <script type="text/javascript"> |
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| 18 | |
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| 19 | var w = 960, |
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| 20 | h = 500; |
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| 21 | |
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| 22 | var svg = d3.select("body") |
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| 23 | .append("svg:svg") |
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| 24 | .attr("width", w) |
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| 25 | .attr("height", h) |
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| 26 | .attr("pointer-events", "all"); |
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| 27 | |
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| 28 | svg.append("svg:g") |
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| 29 | .selectAll("circle") |
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| 30 | .data(d3.range(110)) |
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| 31 | .enter().append("svg:circle") |
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| 32 | .attr("transform", "translate(" + w / 2 + "," + h / 2 + ")") |
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| 33 | .attr("r", function(d) { return d * 5; }); |
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| 34 | |
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| 35 | var circle = svg.append("svg:g") |
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| 36 | .selectAll("circle") |
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| 37 | .data(d3.range(60)) |
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| 38 | .enter().append("svg:circle") |
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| 39 | .attr("transform", "translate(" + w / 2 + "," + h / 2 + ")") |
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| 40 | .attr("r", function(d) { return d * 3; }); |
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| 41 | |
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| 42 | svg.on("mousemove", function() { |
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| 43 | var mouse = d3.svg.mouse(this), |
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| 44 | r = (Math.sqrt(mouse[0]) + 10) / 10; |
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| 45 | |
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| 46 | circle |
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| 47 | .attr("transform", "translate(" + mouse + ")") |
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| 48 | .attr("r", function(d) { return d * r; }); |
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| 49 | }); |
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| 50 | |
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| 51 | </script> |
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| 52 | </body> |
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| 53 | </html> |
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