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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> |